Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Nakhon Si Thammarat. The lines show the 2026 daily maximum and minimum. 12 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Nakhon Si Thammarat, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
34.8 C (94.6 F)
17.2 C (63.0 F)
32.2 C (90.0 F)
21.1 C (70.0 F)
Feb
35.5 C (95.9 F)
15.5 C (59.9 F)
34.0 C (93.2 F)
19.1 C (66.4 F)
Mar
40.1 C (104.2 F)
17.5 C (63.5 F)
34.5 C (94.1 F)
22.2 C (72.0 F)
Apr
38.9 C (102.0 F)
18.6 C (65.5 F)
35.0 C (95.0 F)
23.7 C (74.7 F)
May
39.7 C (103.5 F)
20.2 C (68.4 F)
36.7 C (98.1 F)
24.0 C (75.2 F)
Jun
37.8 C (100.0 F)
19.6 C (67.3 F)
37.2 C (99.0 F)
22.6 C (72.7 F)
Jul
38.5 C (101.3 F)
19.4 C (66.9 F)
37.5 C (99.5 F)
23.0 C (73.4 F)
Aug
39.4 C (102.9 F)
19.6 C (67.3 F)
36.7 C (98.1 F)
22.4 C (72.3 F)
Sep
37.7 C (99.9 F)
19.4 C (66.9 F)
n/a
n/a
Oct
36.5 C (97.7 F)
20.2 C (68.4 F)
n/a
n/a
Nov
35.4 C (95.7 F)
18.0 C (64.4 F)
n/a
n/a
Dec
34.7 C (94.5 F)
17.1 C (62.8 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Nakhon Si Thammarat still stand. 1998 holds the most, with 74.
Standing records at Nakhon Si Thammarat by the year they were set
Year set
Standing records
1951
15
1952
25
1953
16
1954
33
1955
25
1956
22
1957
20
1958
32
1959
20
1960
18
1961
29
1962
34
1963
36
1964
17
1965
32
1966
16
1967
25
1968
22
1969
27
1970
21
1971
24
1972
25
1973
14
1974
26
1975
21
1976
26
1977
15
1978
20
1979
16
1980
7
1981
8
1982
4
1983
7
1984
5
1985
4
1986
8
1987
25
1988
12
1989
6
1990
35
1991
8
1992
10
1993
11
1994
11
1995
12
1996
22
1997
13
1998
74
1999
11
2000
12
2001
9
2002
10
2003
3
2004
6
2005
8
2006
13
2007
13
2008
11
2009
8
2010
10
2011
14
2012
32
2013
11
2014
25
2015
26
2016
41
2017
19
2018
17
2019
21
2020
19
2021
23
2022
15
2023
38
2024
74
2025
21
All-Time Record Progression
3 new records
3 all-time records were set at Nakhon Si Thammarat between 22 November 1988 and 3 February 2014. Each dot is a new record.
When Nakhon Si Thammarat set new all-time records
Date
Kind
Detail
1988-11-22
Record daily precipitation
Record daily precipitation 448.1 mm (17.6 in)
1996-03-20
Record high maximum temperature
Record high maximum temperature 40.1 C (104.2 F)
2014-02-03
Record low minimum temperature
Record low minimum temperature 15.5 C (59.9 F)
Wettest Day of Each Month
Nov: 448.1 mm (17.6 in)
The wettest day on record for each calendar month at Nakhon Si Thammarat. The most was 448.1 mm (17.6 in) on 22 November 1988.
Record daily precipitation for each month at Nakhon Si Thammarat
Month
Record daily precipitation (mm)
Date
Jan
433.3 mm (17.1 in)
5 January 1975
Feb
102.3 mm (4.0 in)
19 February 1975
Mar
261.1 mm (10.3 in)
25 March 2011
Apr
237.0 mm (9.3 in)
13 April 2013
May
135.9 mm (5.4 in)
22 May 1991
Jun
98.0 mm (3.9 in)
24 June 1990
Jul
96.0 mm (3.8 in)
4 July 1995
Aug
90.2 mm (3.6 in)
13 August 2022
Sep
92.2 mm (3.6 in)
5 September 2005
Oct
271.7 mm (10.7 in)
21 October 1963
Nov
448.1 mm (17.6 in)
22 November 1988
Dec
369.3 mm (14.5 in)
29 December 2002
Period of Record Coverage
1951 to 2025
Complete yearUnder 90 percent of days
75 years of record at Nakhon Si Thammarat, 1951 to 2025. 12 years have data for under 90 percent of days and are left out of rankings: 1951, 1988, 2005, 2017, 2018, 2019, 2020, 2021 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 55 complete years at Nakhon Si Thammarat, 1953 to 2022. Blue stripes are years cooler than the station's own mean of 27.5 C (81.6 F); red stripes are warmer. The coolest year was 1974, at 26.8 C (80.3 F), and the warmest was 1990, at 28.3 C (82.9 F). The strongest colour marks a difference of 0.8 C (1.4 F).
Annual mean temperature at Nakhon Si Thammarat as warming stripes, 1953 to 2022
Year
Annual mean temperature
Difference from the station mean
1953
27.3 C
-0.26 C
1954
27.4 C
-0.17 C
1955
27.1 C
-0.48 C
1956
27.1 C
-0.48 C
1957
27.6 C
+0.03 C
1958
27.7 C
+0.20 C
1959
27.4 C
-0.15 C
1960
27.4 C
-0.11 C
1961
27.4 C
-0.17 C
1962
27.3 C
-0.28 C
1963
27.3 C
-0.26 C
1964
27.4 C
-0.18 C
1965
27.1 C
-0.45 C
1966
27.3 C
-0.25 C
1967
27.1 C
-0.41 C
1968
27.6 C
+0.08 C
1969
27.8 C
+0.25 C
1970
27.3 C
-0.29 C
1971
26.9 C
-0.65 C
1972
27.2 C
-0.33 C
1973
27.2 C
-0.33 C
1974
26.8 C
-0.71 C
1975
27.0 C
-0.53 C
1976
27.0 C
-0.58 C
1977
27.3 C
-0.23 C
1978
27.7 C
+0.18 C
1979
27.7 C
+0.20 C
1980
27.7 C
+0.20 C
1986
27.5 C
-0.06 C
1987
28.0 C
+0.48 C
1989
27.8 C
+0.21 C
1990
28.3 C
+0.71 C
1992
27.7 C
+0.13 C
1993
27.5 C
-0.05 C
1994
27.7 C
+0.12 C
1995
27.7 C
+0.16 C
1996
27.7 C
+0.14 C
1997
27.9 C
+0.32 C
1999
27.3 C
-0.21 C
2000
27.4 C
-0.15 C
2001
27.8 C
+0.27 C
2002
27.9 C
+0.33 C
2003
27.7 C
+0.18 C
2004
27.7 C
+0.18 C
2006
27.7 C
+0.14 C
2007
27.7 C
+0.13 C
2008
27.6 C
+0.07 C
2009
27.9 C
+0.40 C
2010
28.1 C
+0.55 C
2011
27.6 C
+0.02 C
2012
28.0 C
+0.45 C
2013
27.8 C
+0.25 C
2014
27.8 C
+0.29 C
2017
28.2 C
+0.62 C
2022
28.1 C
+0.56 C
The annual mean temperature here has risen by 0.1 C (0.1 to 0.1) per decade over 1953 to 2022. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Nakhon Si Thammarat
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (0.1 to 0.1) per decade
0.2 F (0.1 to 0.3) per decade
1953 to 2022
55
Rise
Mean daily maximum
0.1 C (0.1 to 0.2) per decade
0.2 F (0.1 to 0.3) per decade
1953 to 2022
55
Rise
Mean daily minimum
0.1 C (0.1 to 0.1) per decade
0.2 F (0.1 to 0.2) per decade
1953 to 2022
55
Rise
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1951 to 2025
Yearly extremes at Nakhon Si Thammarat: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.1 C (104.2 F)
1996
36.6 C (97.9 F)
75
Coldest night (TNn)
15.5 C (59.9 F)
2014
19.0 C (66.2 F)
70
Wettest day (Rx1day)
448.1 mm (17.6 in)
1988
169.9 mm (6.7 in)
75
Wettest five days (Rx5day)
924.1 mm (36.4 in)
2024
345.2 mm (13.6 in)
75
Longest dry spell (CDD)
65 days
1978
23 days
75
Hottest day (TXx)
The hottest day of the year at Nakhon Si Thammarat, 1951 to 2025. The record is 40.1 C (104.2 F) in 1996, marked on the chart; the median year is 36.6 C (97.9 F).
Hottest day (TXx) at Nakhon Si Thammarat by year
Year
Hottest day (TXx)
1951
35.4 C (95.7 F)
1952
35.8 C (96.4 F)
1953
35.8 C (96.4 F)
1954
39.4 C (102.9 F)
1955
36.2 C (97.2 F)
1956
35.7 C (96.3 F)
1957
36.9 C (98.4 F)
1958
37.3 C (99.1 F)
1959
35.7 C (96.3 F)
1960
36.2 C (97.2 F)
1961
36.2 C (97.2 F)
1962
36.0 C (96.8 F)
1963
37.7 C (99.9 F)
1964
35.5 C (95.9 F)
1965
36.0 C (96.8 F)
1966
36.9 C (98.4 F)
1967
35.3 C (95.5 F)
1968
38.0 C (100.4 F)
1969
36.6 C (97.9 F)
1970
35.1 C (95.2 F)
1971
35.9 C (96.6 F)
1972
35.7 C (96.3 F)
1973
35.8 C (96.4 F)
1974
35.3 C (95.5 F)
1975
36.3 C (97.3 F)
1976
36.5 C (97.7 F)
1977
36.2 C (97.2 F)
1978
37.1 C (98.8 F)
1979
36.5 C (97.7 F)
1980
37.1 C (98.8 F)
1981
37.6 C (99.7 F)
1982
36.2 C (97.2 F)
1983
37.6 C (99.7 F)
1984
36.2 C (97.2 F)
1985
37.6 C (99.7 F)
1986
36.5 C (97.7 F)
1987
37.6 C (99.7 F)
1988
37.6 C (99.7 F)
1989
38.5 C (101.3 F)
1990
38.5 C (101.3 F)
1991
37.4 C (99.3 F)
1992
37.7 C (99.9 F)
1993
36.7 C (98.1 F)
1994
36.0 C (96.8 F)
1995
37.0 C (98.6 F)
1996
40.1 C (104.2 F)
1997
36.5 C (97.7 F)
1998
38.9 C (102.0 F)
1999
35.5 C (95.9 F)
2000
36.0 C (96.8 F)
2001
36.4 C (97.5 F)
2002
37.8 C (100.0 F)
2003
36.1 C (97.0 F)
2004
36.3 C (97.3 F)
2005
36.9 C (98.4 F)
2006
35.6 C (96.1 F)
2007
37.0 C (98.6 F)
2008
36.2 C (97.2 F)
2009
37.0 C (98.6 F)
2010
37.5 C (99.5 F)
2011
36.6 C (97.9 F)
2012
38.5 C (101.3 F)
2013
37.5 C (99.5 F)
2014
38.0 C (100.4 F)
2015
37.1 C (98.8 F)
2016
38.1 C (100.6 F)
2017
36.5 C (97.7 F)
2018
36.5 C (97.7 F)
2019
37.2 C (99.0 F)
2020
36.5 C (97.7 F)
2021
37.0 C (98.6 F)
2022
36.5 C (97.7 F)
2023
37.0 C (98.6 F)
2024
39.7 C (103.5 F)
2025
37.5 C (99.5 F)
Coldest night (TNn)
The coldest night of the year at Nakhon Si Thammarat, 1951 to 2025. The record is 15.5 C (59.9 F) in 2014, marked on the chart; the median year is 19.0 C (66.2 F).
Coldest night (TNn) at Nakhon Si Thammarat by year
Year
Coldest night (TNn)
1951
20.1 C (68.2 F)
1952
18.4 C (65.1 F)
1953
18.5 C (65.3 F)
1954
18.5 C (65.3 F)
1955
17.1 C (62.8 F)
1956
18.0 C (64.4 F)
1957
17.6 C (63.7 F)
1958
18.5 C (65.3 F)
1959
18.8 C (65.8 F)
1960
18.3 C (64.9 F)
1961
18.5 C (65.3 F)
1962
17.2 C (63.0 F)
1963
18.2 C (64.8 F)
1964
19.8 C (67.6 F)
1965
17.7 C (63.9 F)
1966
19.5 C (67.1 F)
1967
18.0 C (64.4 F)
1968
17.8 C (64.0 F)
1969
19.5 C (67.1 F)
1970
19.3 C (66.7 F)
1971
18.7 C (65.7 F)
1972
18.8 C (65.8 F)
1973
18.5 C (65.3 F)
1974
19.1 C (66.4 F)
1975
19.8 C (67.6 F)
1976
17.2 C (63.0 F)
1977
19.2 C (66.6 F)
1978
20.2 C (68.4 F)
1979
19.6 C (67.3 F)
1980
17.5 C (63.5 F)
1981
n/a
1982
n/a
1983
n/a
1984
n/a
1985
n/a
1986
20.1 C (68.2 F)
1987
19.5 C (67.1 F)
1988
20.6 C (69.1 F)
1989
17.6 C (63.7 F)
1990
18.5 C (65.3 F)
1991
19.6 C (67.3 F)
1992
20.0 C (68.0 F)
1993
18.5 C (65.3 F)
1994
17.7 C (63.9 F)
1995
19.5 C (67.1 F)
1996
19.2 C (66.6 F)
1997
18.8 C (65.8 F)
1998
19.8 C (67.6 F)
1999
18.0 C (64.4 F)
2000
18.8 C (65.8 F)
2001
20.4 C (68.7 F)
2002
19.5 C (67.1 F)
2003
20.3 C (68.5 F)
2004
19.7 C (67.5 F)
2005
18.7 C (65.7 F)
2006
20.1 C (68.2 F)
2007
18.3 C (64.9 F)
2008
19.9 C (67.8 F)
2009
18.4 C (65.1 F)
2010
20.0 C (68.0 F)
2011
18.1 C (64.6 F)
2012
20.5 C (68.9 F)
2013
20.5 C (68.9 F)
2014
15.5 C (59.9 F)
2015
18.9 C (66.0 F)
2016
20.5 C (68.9 F)
2017
20.4 C (68.7 F)
2018
20.0 C (68.0 F)
2019
20.4 C (68.7 F)
2020
20.5 C (68.9 F)
2021
18.0 C (64.4 F)
2022
20.1 C (68.2 F)
2023
18.7 C (65.7 F)
2024
21.2 C (70.2 F)
2025
19.1 C (66.4 F)
Wettest day (Rx1day)
The wettest day of the year at Nakhon Si Thammarat, 1951 to 2025. The record is 448.1 mm (17.6 in) in 1988, marked on the chart; the median year is 169.9 mm (6.7 in).
Wettest day (Rx1day) at Nakhon Si Thammarat by year
Year
Wettest day (Rx1day)
1951
238.6 mm (9.4 in)
1952
225.7 mm (8.9 in)
1953
242.8 mm (9.6 in)
1954
127.7 mm (5.0 in)
1955
132.1 mm (5.2 in)
1956
145.3 mm (5.7 in)
1957
171.1 mm (6.7 in)
1958
206.4 mm (8.1 in)
1959
133.6 mm (5.3 in)
1960
87.0 mm (3.4 in)
1961
179.6 mm (7.1 in)
1962
122.6 mm (4.8 in)
1963
271.7 mm (10.7 in)
1964
183.7 mm (7.2 in)
1965
149.0 mm (5.9 in)
1966
237.7 mm (9.4 in)
1967
143.8 mm (5.7 in)
1968
77.8 mm (3.1 in)
1969
149.2 mm (5.9 in)
1970
174.1 mm (6.9 in)
1971
241.5 mm (9.5 in)
1972
72.2 mm (2.8 in)
1973
190.6 mm (7.5 in)
1974
177.4 mm (7.0 in)
1975
433.3 mm (17.1 in)
1976
414.0 mm (16.3 in)
1977
142.6 mm (5.6 in)
1978
69.6 mm (2.7 in)
1979
125.6 mm (4.9 in)
1980
244.2 mm (9.6 in)
1981
109.0 mm (4.3 in)
1982
108.7 mm (4.3 in)
1983
102.9 mm (4.1 in)
1984
352.4 mm (13.9 in)
1985
106.2 mm (4.2 in)
1986
206.0 mm (8.1 in)
1987
158.0 mm (6.2 in)
1988
448.1 mm (17.6 in)
1989
161.0 mm (6.3 in)
1990
140.0 mm (5.5 in)
1991
167.9 mm (6.6 in)
1992
178.1 mm (7.0 in)
1993
269.0 mm (10.6 in)
1994
122.9 mm (4.8 in)
1995
132.1 mm (5.2 in)
1996
133.1 mm (5.2 in)
1997
150.9 mm (5.9 in)
1998
108.0 mm (4.3 in)
1999
159.0 mm (6.3 in)
2000
169.9 mm (6.7 in)
2001
106.7 mm (4.2 in)
2002
369.3 mm (14.5 in)
2003
246.6 mm (9.7 in)
2004
87.4 mm (3.4 in)
2005
123.7 mm (4.9 in)
2006
130.8 mm (5.1 in)
2007
251.5 mm (9.9 in)
2008
242.8 mm (9.6 in)
2009
202.7 mm (8.0 in)
2010
172.0 mm (6.8 in)
2011
261.1 mm (10.3 in)
2012
365.8 mm (14.4 in)
2013
237.0 mm (9.3 in)
2014
160.3 mm (6.3 in)
2015
100.3 mm (3.9 in)
2016
250.2 mm (9.9 in)
2017
360.2 mm (14.2 in)
2018
234.4 mm (9.2 in)
2019
108.7 mm (4.3 in)
2020
292.4 mm (11.5 in)
2021
247.1 mm (9.7 in)
2022
193.8 mm (7.6 in)
2023
131.1 mm (5.2 in)
2024
270.3 mm (10.6 in)
2025
101.1 mm (4.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Nakhon Si Thammarat, 1951 to 2025. The record is 924.1 mm (36.4 in) in 2024, marked on the chart; the median year is 345.2 mm (13.6 in).
Wettest five days (Rx5day) at Nakhon Si Thammarat by year
Year
Wettest five days (Rx5day)
1951
885.4 mm (34.9 in)
1952
510.8 mm (20.1 in)
1953
678.8 mm (26.7 in)
1954
404.0 mm (15.9 in)
1955
227.5 mm (9.0 in)
1956
427.8 mm (16.8 in)
1957
318.5 mm (12.5 in)
1958
535.2 mm (21.1 in)
1959
309.1 mm (12.2 in)
1960
170.2 mm (6.7 in)
1961
335.7 mm (13.2 in)
1962
284.9 mm (11.2 in)
1963
459.2 mm (18.1 in)
1964
367.0 mm (14.4 in)
1965
244.4 mm (9.6 in)
1966
532.1 mm (20.9 in)
1967
338.1 mm (13.3 in)
1968
206.3 mm (8.1 in)
1969
256.6 mm (10.1 in)
1970
285.8 mm (11.3 in)
1971
371.5 mm (14.6 in)
1972
178.0 mm (7.0 in)
1973
516.3 mm (20.3 in)
1974
496.8 mm (19.6 in)
1975
899.8 mm (35.4 in)
1976
635.5 mm (25.0 in)
1977
347.5 mm (13.7 in)
1978
169.0 mm (6.7 in)
1979
316.1 mm (12.4 in)
1980
547.8 mm (21.6 in)
1981
215.5 mm (8.5 in)
1982
226.9 mm (8.9 in)
1983
260.7 mm (10.3 in)
1984
744.1 mm (29.3 in)
1985
260.3 mm (10.2 in)
1986
339.4 mm (13.4 in)
1987
353.1 mm (13.9 in)
1988
896.9 mm (35.3 in)
1989
279.9 mm (11.0 in)
1990
281.3 mm (11.1 in)
1991
222.1 mm (8.7 in)
1992
265.0 mm (10.4 in)
1993
407.1 mm (16.0 in)
1994
336.0 mm (13.2 in)
1995
362.2 mm (14.3 in)
1996
443.2 mm (17.4 in)
1997
345.2 mm (13.6 in)
1998
276.8 mm (10.9 in)
1999
190.0 mm (7.5 in)
2000
201.3 mm (7.9 in)
2001
201.7 mm (7.9 in)
2002
539.8 mm (21.3 in)
2003
616.7 mm (24.3 in)
2004
207.6 mm (8.2 in)
2005
218.8 mm (8.6 in)
2006
284.7 mm (11.2 in)
2007
518.4 mm (20.4 in)
2008
506.9 mm (20.0 in)
2009
394.7 mm (15.5 in)
2010
529.4 mm (20.8 in)
2011
889.2 mm (35.0 in)
2012
687.7 mm (27.1 in)
2013
733.2 mm (28.9 in)
2014
254.0 mm (10.0 in)
2015
200.9 mm (7.9 in)
2016
719.9 mm (28.3 in)
2017
843.6 mm (33.2 in)
2018
304.8 mm (12.0 in)
2019
191.8 mm (7.6 in)
2020
703.4 mm (27.7 in)
2021
549.1 mm (21.6 in)
2022
366.3 mm (14.4 in)
2023
321.1 mm (12.6 in)
2024
924.1 mm (36.4 in)
2025
159.5 mm (6.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Nakhon Si Thammarat, 1951 to 2025. The record is 65 days in 1978, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Nakhon Si Thammarat by year
Year
Longest dry spell (CDD)
1951
27 days
1952
30 days
1953
21 days
1954
21 days
1955
41 days
1956
25 days
1957
29 days
1958
42 days
1959
30 days
1960
34 days
1961
19 days
1962
32 days
1963
39 days
1964
26 days
1965
24 days
1966
15 days
1967
28 days
1968
33 days
1969
23 days
1970
40 days
1971
30 days
1972
25 days
1973
18 days
1974
23 days
1975
16 days
1976
39 days
1977
55 days
1978
65 days
1979
29 days
1980
56 days
1981
58 days
1982
52 days
1983
54 days
1984
21 days
1985
24 days
1986
36 days
1987
23 days
1988
20 days
1989
21 days
1990
30 days
1991
16 days
1992
39 days
1993
21 days
1994
27 days
1995
25 days
1996
30 days
1997
15 days
1998
20 days
1999
7 days
2000
5 days
2001
4 days
2002
9 days
2003
28 days
2004
30 days
2005
50 days
2006
3 days
2007
3 days
2008
4 days
2009
3 days
2010
3 days
2011
3 days
2012
3 days
2013
3 days
2014
3 days
2015
4 days
2016
6 days
2017
4 days
2018
3 days
2019
3 days
2020
3 days
2021
4 days
2022
3 days
2023
3 days
2024
6 days
2025
3 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Rainfall Return Levels
49 years, 1951 to 2004
A day with at least 159.9 mm (6.3 in) of rain is expected about once in 2 years. A day with at least 517.8 mm (20.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Nakhon Si Thammarat: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
159.9 mm (6.3 in)
5 years
232.7 mm (9.2 in)
10 years
289.0 mm (11.4 in)
25 years
370.9 mm (14.6 in)
50 years
440.4 mm (17.3 in)
Longer than the 49 years of record
100 years
517.8 mm (20.4 in)
Longer than the 49 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 49 years of values from 1951 to 2004.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 448.1 mm (17.6 in) in 1988; 433.3 mm (17.1 in) in 1975; 414.0 mm (16.3 in) in 1976.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Nakhon Si Thammarat, at 2001. Each is measured against neighbouring stations.
Relative to 4 neighbouring stations, the station's annual mean temperature from 2001 ran 0.3 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Nakhon Si Thammarat, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
2001
-0.3
-0.6
likely
4
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Nakhon Si Thammarat standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nakhon Si Thammarat threshold days by year: CSV or JSON. Field meanings are on the data page.
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-13 (13 October 2026). Records are computed by this site and are not official.