China Bay Weather Records (CEM00043418)

Record envelope, standing records and threshold days for China Bay (CEM00043418), Sri Lanka, with 69 years of record.

Key Facts for China Bay

China Bay (CEM00043418) is a weather station in Sri Lanka at 8.54 latitude and 81.18 longitude, 2 m (6 ft) above sea level.
The station reports from 1957 to 2025, 69 years of record.
1,464 records set at China Bay still stand.
Records are tracked for tmax: an element needs 30 years of data to be eligible.
China Bay set a daily record high maximum temperature of 36.9 C (98.4 F) on 12 July 2025.

About the Station

Location: Sri Lanka, 8.54 latitude, 81.18 longitude.
Elevation: 2 m (6 ft).
Period of record: 1957 to 2025, 69 years.
Eligible elements: tmax.

Daily Record Envelope and 2026

7 days at or beyond a record

The band shows the record high and record low for each calendar day at China Bay. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at China Bay, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	32.7 C (90.9 F)	16.1 C (61.0 F)	30.1 C (86.2 F)	22.5 C (72.5 F)
Feb	34.0 C (93.2 F)	18.6 C (65.5 F)	32.2 C (90.0 F)	22.3 C (72.1 F)
Mar	38.0 C (100.4 F)	20.0 C (68.0 F)	32.6 C (90.7 F)	22.2 C (72.0 F)
Apr	38.6 C (101.5 F)	21.4 C (70.5 F)	36.6 C (97.9 F)	23.3 C (73.9 F)
May	39.4 C (102.9 F)	21.0 C (69.8 F)	36.4 C (97.5 F)	22.8 C (73.0 F)
Jun	39.3 C (102.7 F)	23.0 C (73.4 F)	37.2 C (99.0 F)	26.6 C (79.9 F)
Jul	39.0 C (102.2 F)	21.7 C (71.1 F)	37.8 C (100.0 F)	25.6 C (78.1 F)
Aug	39.4 C (102.9 F)	21.7 C (71.1 F)	36.5 C (97.7 F)	24.6 C (76.3 F)
Sep	40.0 C (104.0 F)	21.2 C (70.2 F)	n/a	n/a
Oct	39.5 C (103.1 F)	21.9 C (71.4 F)	n/a	n/a
Nov	34.3 C (93.7 F)	19.2 C (66.6 F)	n/a	n/a
Dec	35.5 C (95.9 F)	16.5 C (61.7 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at China Bay still stand. 1958 holds the most, with 75.

Standing records at China Bay by the year they were set
Year set	Standing records
1957	32
1958	75
1962	9
1964	8
1965	1
1966	7
1967	19
1968	17
1969	25
1970	19
1971	11
1973	47
1974	35
1975	40
1976	32
1977	29
1978	28
1979	40
1980	40
1981	27
1982	14
1983	24
1984	17
1985	35
1986	13
1987	10
1988	1
1989	7
1990	2
1991	5
1992	14
1993	23
1994	10
1995	6
1996	10
1998	12
1999	2
2001	13
2002	12
2003	9
2004	8
2005	14
2006	7
2007	4
2008	6
2009	16
2010	61
2011	37
2012	51
2013	40
2014	45
2015	57
2016	59
2017	54
2018	31
2019	29
2020	54
2021	20
2022	41
2023	30
2024	15
2025	5

All-Time Record Progression

1 new records

1 all-time records were set at China Bay between 8 December 2022 and 8 December 2022. Each dot is a new record.

Wettest Day of Each Month

Dec: 299.7 mm (11.8 in)

The wettest day on record for each calendar month at China Bay. The most was 299.7 mm (11.8 in) on 20 December 2012.

Record daily precipitation for each month at China Bay
Month	Record daily precipitation (mm)	Date
Jan	185.9 mm (7.3 in)	19 January 2025
Feb	173.0 mm (6.8 in)	3 February 2011
Mar	111.5 mm (4.4 in)	11 March 2009
Apr	132.1 mm (5.2 in)	3 April 2012
May	182.1 mm (7.2 in)	10 May 1993
Jun	83.8 mm (3.3 in)	3 June 2001
Jul	91.7 mm (3.6 in)	1 July 2018
Aug	84.1 mm (3.3 in)	27 August 1984
Sep	125.5 mm (4.9 in)	18 September 2021
Oct	176.8 mm (7.0 in)	30 October 2012
Nov	185.7 mm (7.3 in)	9 November 2021
Dec	299.7 mm (11.8 in)	20 December 2012

Period of Record Coverage

1957 to 2025

65 years of record at China Bay, 1957 to 2025. 55 years have data for under 90 percent of days and are left out of rankings: 1957, 1961, 1962, 1963, 1964, 1965, 1966, 1967 and others.

Days with data per year at China Bay
Year	Days with data	Share of year	Complete
1957	181	50%	No
1958	364	100%	Yes
1961	5	1%	No
1962	29	8%	No
1963	12	3%	No
1964	23	6%	No
1965	16	4%	No
1966	31	8%	No
1967	84	23%	No
1968	79	22%	No
1969	122	33%	No
1970	174	48%	No
1971	85	23%	No
1973	227	62%	No
1974	259	71%	No
1975	284	78%	No
1976	251	69%	No
1977	216	59%	No
1978	259	71%	No
1979	313	86%	No
1980	296	81%	No
1981	268	73%	No
1982	258	71%	No
1983	146	40%	No
1984	171	47%	No
1985	221	61%	No
1986	78	21%	No
1987	24	7%	No
1988	10	3%	No
1989	46	13%	No
1990	19	5%	No
1991	45	12%	No
1992	143	39%	No
1993	289	79%	No
1994	197	54%	No
1995	255	70%	No
1996	99	27%	No
1997	13	4%	No
1998	65	18%	No
1999	7	2%	No
2001	206	56%	No
2002	137	38%	No
2003	140	38%	No
2004	150	41%	No
2005	225	62%	No
2006	88	24%	No
2007	99	27%	No
2008	129	35%	No
2009	232	64%	No
2010	321	88%	No
2011	341	93%	Yes
2012	348	95%	Yes
2013	344	94%	Yes
2014	355	97%	Yes
2015	359	98%	Yes
2016	331	90%	Yes
2017	329	90%	Yes
2018	277	76%	No
2019	264	72%	No
2020	329	90%	No
2021	347	95%	Yes
2022	282	77%	No
2023	341	93%	Yes
2024	102	28%	No
2025	215	59%	No

Latest Records

Latest records at China Bay
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 July 2025	China Bay, LK	daily high max	36.9 C (98.4 F)	0.2 C (0.4 F)	0 years	7 of 100 (Routine)
21 February 2025	China Bay, LK	daily high max (Tie)	32.2 C (90.0 F)	tie	42 years	4 of 100 (Routine)
20 February 2025	China Bay, LK	daily high max	32.2 C (90.0 F)	0.8 C (1.4 F)	15 years	16 of 100 (Routine)
19 January 2025	China Bay, LK	daily low max (Tie)	27.0 C (80.6 F)	tie	47 years	5 of 100 (Routine)
26 December 2024	China Bay, LK	daily high max	30.5 C (86.9 F)	0.3 C (0.5 F)	30 years	17 of 100 (Routine)
25 December 2024	China Bay, LK	daily high max	31.4 C (88.5 F)	0.7 C (1.3 F)	9 years	12 of 100 (Routine)
21 December 2024	China Bay, LK	daily high max	31.1 C (88.0 F)	0.6 C (1.1 F)	1 year	10 of 100 (Routine)
20 December 2024	China Bay, LK	daily high max	32.6 C (90.7 F)	1.9 C (3.4 F)	9 years	20 of 100 (Routine)
19 December 2024	China Bay, LK	daily high max	31.8 C (89.2 F)	1.6 C (2.9 F)	15 years	20 of 100 (Routine)
12 July 2024	China Bay, LK	daily high max	36.7 C (98.1 F)	0.1 C (0.2 F)	29 years	14 of 100 (Routine)
21 December 2023	China Bay, LK	daily high max	30.5 C (86.9 F)	0.2 C (0.4 F)	8 years	9 of 100 (Routine)
7 December 2023	China Bay, LK	daily high max	30.8 C (87.4 F)	0.2 C (0.4 F)	8 years	9 of 100 (Routine)
6 December 2023	China Bay, LK	daily high max	32.1 C (89.8 F)	1.1 C (2.0 F)	1 year	13 of 100 (Routine)
5 December 2023	China Bay, LK	daily high max	32.4 C (90.3 F)	1.0 C (1.8 F)	1 year	12 of 100 (Routine)
28 November 2023	China Bay, LK	daily high max	31.1 C (88.0 F)	0.1 C (0.2 F)	46 years	20 of 100 (Routine)
31 August 2023	China Bay, LK	daily high max (Tie)	37.7 C (99.9 F)	tie	10 years	2 of 100 (Routine)
28 August 2023	China Bay, LK	daily high max (Tie)	37.4 C (99.3 F)	tie	28 years	3 of 100 (Routine)
27 August 2023	China Bay, LK	daily high max	37.3 C (99.1 F)	0.1 C (0.2 F)	20 years	12 of 100 (Routine)
22 August 2023	China Bay, LK	daily high max	37.8 C (100.0 F)	0.4 C (0.7 F)	29 years	16 of 100 (Routine)
4 August 2023	China Bay, LK	daily high max	37.6 C (99.7 F)	0.8 C (1.4 F)	28 years	18 of 100 (Routine)

Extremes by Year

1957 to 2025

Yearly extremes at China Bay: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1973	37.8 C (100.0 F)	65
Coldest night (TNn)	16.1 C (61.0 F)	2011	21.4 C (70.5 F)	63
Wettest day (Rx1day)	299.7 mm (11.8 in)	2012	93.0 mm (3.7 in)	57
Wettest five days (Rx5day)	562.1 mm (22.1 in)	2012	143.5 mm (5.6 in)	41
Longest dry spell (CDD)	82 days	2012	4 days	56

Hottest day (TXx)

The hottest day of the year at China Bay, 1957 to 2025. The record is 40.0 C (104.0 F) in 1973, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at China Bay by year
Year	Hottest day (TXx)
1957	37.2 C (99.0 F)
1958	36.1 C (97.0 F)
1961	35.0 C (95.0 F)
1962	36.1 C (97.0 F)
1963	35.0 C (95.0 F)
1964	37.8 C (100.0 F)
1965	35.0 C (95.0 F)
1966	37.2 C (99.0 F)
1967	36.1 C (97.0 F)
1968	37.8 C (100.0 F)
1969	37.2 C (99.0 F)
1970	37.2 C (99.0 F)
1971	35.0 C (95.0 F)
1973	40.0 C (104.0 F)
1974	39.0 C (102.2 F)
1975	39.0 C (102.2 F)
1976	37.0 C (98.6 F)
1977	37.0 C (98.6 F)
1978	36.0 C (96.8 F)
1979	38.0 C (100.4 F)
1980	38.0 C (100.4 F)
1981	36.0 C (96.8 F)
1982	37.5 C (99.5 F)
1983	37.8 C (100.0 F)
1984	37.5 C (99.5 F)
1985	38.4 C (101.1 F)
1986	37.3 C (99.1 F)
1987	39.4 C (102.9 F)
1988	33.6 C (92.5 F)
1989	38.4 C (101.1 F)
1990	34.8 C (94.6 F)
1991	37.1 C (98.8 F)
1992	37.5 C (99.5 F)
1993	38.0 C (100.4 F)
1994	38.2 C (100.8 F)
1995	37.8 C (100.0 F)
1996	39.4 C (102.9 F)
1997	36.1 C (97.0 F)
1998	39.3 C (102.7 F)
1999	36.6 C (97.9 F)
2001	39.0 C (102.2 F)
2002	38.8 C (101.8 F)
2003	38.4 C (101.1 F)
2004	39.2 C (102.6 F)
2005	38.2 C (100.8 F)
2006	38.3 C (100.9 F)
2007	38.2 C (100.8 F)
2008	37.6 C (99.7 F)
2009	38.3 C (100.9 F)
2010	38.6 C (101.5 F)
2011	38.8 C (101.8 F)
2012	39.5 C (103.1 F)
2013	38.3 C (100.9 F)
2014	39.5 C (103.1 F)
2015	37.4 C (99.3 F)
2016	37.7 C (99.9 F)
2017	37.9 C (100.2 F)
2018	37.0 C (98.6 F)
2019	38.1 C (100.6 F)
2020	37.2 C (99.0 F)
2021	36.9 C (98.4 F)
2022	36.4 C (97.5 F)
2023	37.8 C (100.0 F)
2024	37.5 C (99.5 F)
2025	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at China Bay, 1957 to 2025. The record is 16.1 C (61.0 F) in 2011, marked on the chart; the median year is 21.4 C (70.5 F).

Coldest night (TNn) at China Bay by year
Year	Coldest night (TNn)
1957	21.1 C (70.0 F)
1958	22.2 C (72.0 F)
1961	23.9 C (75.0 F)
1962	20.0 C (68.0 F)
1963	22.8 C (73.0 F)
1964	22.8 C (73.0 F)
1965	23.9 C (75.0 F)
1966	21.1 C (70.0 F)
1967	20.0 C (68.0 F)
1968	20.0 C (68.0 F)
1969	20.0 C (68.0 F)
1970	20.0 C (68.0 F)
1971	22.2 C (72.0 F)
1973	21.0 C (69.8 F)
1974	20.0 C (68.0 F)
1975	20.0 C (68.0 F)
1976	21.0 C (69.8 F)
1977	21.0 C (69.8 F)
1978	22.0 C (71.6 F)
1979	20.0 C (68.0 F)
1980	23.0 C (73.4 F)
1981	21.0 C (69.8 F)
1982	21.1 C (70.0 F)
1983	21.6 C (70.9 F)
1984	21.2 C (70.2 F)
1985	21.6 C (70.9 F)
1986	21.6 C (70.9 F)
1987	22.3 C (72.1 F)
1988	22.7 C (72.9 F)
1989	22.2 C (72.0 F)
1990	22.9 C (73.2 F)
1991	22.3 C (72.1 F)
1992	22.3 C (72.1 F)
1993	21.5 C (70.7 F)
1994	22.0 C (71.6 F)
1995	22.2 C (72.0 F)
1996	23.2 C (73.8 F)
1997	21.8 C (71.2 F)
1998	23.5 C (74.3 F)
1999	23.4 C (74.1 F)
2001	24.3 C (75.7 F)
2002	26.0 C (78.8 F)
2003	23.2 C (73.8 F)
2004	25.1 C (77.2 F)
2005	n/a
2006	26.6 C (79.9 F)
2007	23.9 C (75.0 F)
2008	n/a
2009	19.6 C (67.3 F)
2010	19.0 C (66.2 F)
2011	16.1 C (61.0 F)
2012	20.5 C (68.9 F)
2013	20.6 C (69.1 F)
2014	20.0 C (68.0 F)
2015	19.9 C (67.8 F)
2016	18.5 C (65.3 F)
2017	18.6 C (65.5 F)
2018	19.0 C (66.2 F)
2019	20.3 C (68.5 F)
2020	20.4 C (68.7 F)
2021	20.8 C (69.4 F)
2022	16.5 C (61.7 F)
2023	20.1 C (68.2 F)
2024	21.4 C (70.5 F)
2025	22.2 C (72.0 F)

Wettest day (Rx1day)

The wettest day of the year at China Bay, 1957 to 2025. The record is 299.7 mm (11.8 in) in 2012, marked on the chart; the median year is 93.0 mm (3.7 in).

Wettest day (Rx1day) at China Bay by year
Year	Wettest day (Rx1day)
1957	169.9 mm (6.7 in)
1958	72.9 mm (2.9 in)
1961	7.9 mm (0.31 in)
1962	43.9 mm (1.7 in)
1963	93.0 mm (3.7 in)
1964	42.9 mm (1.7 in)
1965	49.0 mm (1.9 in)
1966	65.0 mm (2.6 in)
1967	52.1 mm (2.1 in)
1968	40.9 mm (1.6 in)
1969	59.9 mm (2.4 in)
1970	89.9 mm (3.5 in)
1971	53.1 mm (2.1 in)
1973	59.9 mm (2.4 in)
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	162.1 mm (6.4 in)
1983	104.9 mm (4.1 in)
1984	88.9 mm (3.5 in)
1985	40.9 mm (1.6 in)
1986	64.0 mm (2.5 in)
1987	1.0 mm (0.04 in)
1988	33.0 mm (1.3 in)
1989	48.0 mm (1.9 in)
1990	59.9 mm (2.4 in)
1991	148.1 mm (5.8 in)
1992	118.1 mm (4.6 in)
1993	182.1 mm (7.2 in)
1994	120.9 mm (4.8 in)
1995	137.9 mm (5.4 in)
1996	55.9 mm (2.2 in)
1997	22.1 mm (0.9 in)
1998	59.9 mm (2.4 in)
1999	52.1 mm (2.1 in)
2001	96.0 mm (3.8 in)
2002	87.6 mm (3.4 in)
2003	170.7 mm (6.7 in)
2004	120.9 mm (4.8 in)
2005	120.9 mm (4.8 in)
2006	36.1 mm (1.4 in)
2007	59.9 mm (2.4 in)
2008	99.3 mm (3.9 in)
2009	111.5 mm (4.4 in)
2010	94.5 mm (3.7 in)
2011	173.0 mm (6.8 in)
2012	299.7 mm (11.8 in)
2013	123.2 mm (4.9 in)
2014	86.6 mm (3.4 in)
2015	166.9 mm (6.6 in)
2016	178.8 mm (7.0 in)
2017	79.5 mm (3.1 in)
2018	105.7 mm (4.2 in)
2019	97.3 mm (3.8 in)
2020	167.1 mm (6.6 in)
2021	185.7 mm (7.3 in)
2022	140.7 mm (5.5 in)
2023	122.7 mm (4.8 in)
2024	99.3 mm (3.9 in)
2025	185.9 mm (7.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at China Bay, 1957 to 2025. The record is 562.1 mm (22.1 in) in 2012, marked on the chart; the median year is 143.5 mm (5.6 in).

Wettest five days (Rx5day) at China Bay by year
Year	Wettest five days (Rx5day)
1957	207.1 mm (8.2 in)
1958	135.9 mm (5.4 in)
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	61.2 mm (2.4 in)
1968	45.3 mm (1.8 in)
1969	34.0 mm (1.3 in)
1970	133.1 mm (5.2 in)
1971	62.2 mm (2.4 in)
1973	125.0 mm (4.9 in)
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	246.1 mm (9.7 in)
1983	213.2 mm (8.4 in)
1984	122.4 mm (4.8 in)
1985	43.9 mm (1.7 in)
1986	105.2 mm (4.1 in)
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	16.0 mm (0.6 in)
1993	3.8 mm (0.15 in)
1994	48.0 mm (1.9 in)
1995	87.9 mm (3.5 in)
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2001	138.2 mm (5.4 in)
2002	142.2 mm (5.6 in)
2003	33.6 mm (1.3 in)
2004	92.7 mm (3.6 in)
2005	151.9 mm (6.0 in)
2006	8.7 mm (0.34 in)
2007	n/a
2008	8.1 mm (0.32 in)
2009	153.9 mm (6.1 in)
2010	299.3 mm (11.8 in)
2011	389.7 mm (15.3 in)
2012	562.1 mm (22.1 in)
2013	143.5 mm (5.6 in)
2014	267.0 mm (10.5 in)
2015	253.4 mm (10.0 in)
2016	328.2 mm (12.9 in)
2017	153.7 mm (6.1 in)
2018	194.3 mm (7.6 in)
2019	281.7 mm (11.1 in)
2020	234.4 mm (9.2 in)
2021	229.3 mm (9.0 in)
2022	164.3 mm (6.5 in)
2023	268.5 mm (10.6 in)
2024	161.1 mm (6.3 in)
2025	270.7 mm (10.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at China Bay, 1957 to 2025. The record is 82 days in 2012, marked on the chart; the median year is 4 days.

Longest dry spell (CDD) at China Bay by year
Year	Longest dry spell (CDD)
1957	1 day
1958	3 days
1961	1 day
1962	2 days
1963	1 day
1964	1 day
1965	1 day
1966	2 days
1967	3 days
1968	2 days
1969	2 days
1970	3 days
1971	2 days
1973	4 days
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	30 days
1983	10 days
1984	10 days
1985	3 days
1986	1 day
1987	1 day
1988	1 day
1989	3 days
1990	1 day
1991	1 day
1992	2 days
1993	14 days
1994	11 days
1995	10 days
1996	4 days
1997	2 days
1998	2 days
1999	n/a
2001	3 days
2002	3 days
2003	5 days
2004	8 days
2005	12 days
2006	4 days
2007	3 days
2008	4 days
2009	15 days
2010	32 days
2011	40 days
2012	82 days
2013	39 days
2014	50 days
2015	52 days
2016	44 days
2017	60 days
2018	33 days
2019	66 days
2020	50 days
2021	26 days
2022	20 days
2023	52 days
2024	8 days
2025	8 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.

Download the Data

Data for China Bay standing records by year: CSV or JSON. Field meanings are on the data page.
Data for China Bay 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).