Tanna Weather Records (NHM00091565)

Record envelope, standing records and threshold days for Tanna (NHM00091565), Vanuatu, with 53 years of record.

Key Facts for Tanna

Tanna (NHM00091565) is a weather station in Vanuatu at -19.45 latitude and 169.22 longitude, 6 m (19 ft) above sea level.
The station reports from 1973 to 2025, 53 years of record.
1,464 records set at Tanna still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Tanna set a daily record high maximum temperature of 29.5 C (85.1 F) on 3 July 2025.

About the Station

Location: Vanuatu, -19.45 latitude, 169.22 longitude.
Elevation: 6 m (19 ft).
Period of record: 1973 to 2025, 53 years.
Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

4 days at or beyond a record

The band shows the record high and record low for each calendar day at Tanna. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Tanna, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	34.0 C (93.2 F)	14.0 C (57.2 F)	n/a	n/a
Feb	39.0 C (102.2 F)	15.0 C (59.0 F)	n/a	n/a
Mar	39.0 C (102.2 F)	14.5 C (58.1 F)	n/a	n/a
Apr	39.0 C (102.2 F)	13.4 C (56.1 F)	n/a	n/a
May	33.1 C (91.6 F)	10.0 C (50.0 F)	n/a	n/a
Jun	31.6 C (88.9 F)	9.0 C (48.2 F)	30.5 C (86.9 F)	16.0 C (60.8 F)
Jul	30.4 C (86.7 F)	10.0 C (50.0 F)	29.5 C (85.1 F)	15.0 C (59.0 F)
Aug	31.2 C (88.2 F)	9.0 C (48.2 F)	29.5 C (85.1 F)	14.6 C (58.3 F)
Sep	35.0 C (95.0 F)	11.0 C (51.8 F)	n/a	n/a
Oct	39.0 C (102.2 F)	10.0 C (50.0 F)	n/a	n/a
Nov	33.1 C (91.6 F)	10.0 C (50.0 F)	n/a	n/a
Dec	34.2 C (93.6 F)	15.4 C (59.7 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tanna still stand. 2011 holds the most, with 136.

Standing records at Tanna by the year they were set
Year set	Standing records
1979	58
1980	35
1981	31
1982	42
1983	18
1984	46
1985	35
1986	28
1987	35
1988	33
1989	27
1990	12
1991	31
1992	43
1993	32
1994	49
1995	17
1996	20
1997	29
1998	9
1999	6
2000	33
2001	15
2002	26
2003	13
2004	35
2005	23
2006	18
2007	31
2008	21
2009	16
2010	56
2011	136
2012	38
2013	25
2014	21
2015	35
2016	27
2017	29
2018	16
2019	25
2020	35
2021	44
2022	67
2023	39
2025	4

All-Time Record Progression

1 new records

1 all-time records were set at Tanna between 17 February 2019 and 17 February 2019. Each dot is a new record.

Wettest Day of Each Month

Mar: 301.0 mm (11.9 in)

The wettest day on record for each calendar month at Tanna. The most was 301.0 mm (11.9 in) on 23 March 1998.

Record daily precipitation for each month at Tanna
Month	Record daily precipitation (mm)	Date
Jan	255.0 mm (10.0 in)	14 January 2015
Feb	175.0 mm (6.9 in)	25 February 1989
Mar	301.0 mm (11.9 in)	23 March 1998
Apr	192.5 mm (7.6 in)	16 April 2009
May	171.7 mm (6.8 in)	13 May 2007
Jun	146.1 mm (5.8 in)	12 June 1998
Jul	153.9 mm (6.1 in)	9 July 1973
Aug	112.0 mm (4.4 in)	19 August 2015
Sep	137.9 mm (5.4 in)	3 September 2012
Oct	162.1 mm (6.4 in)	25 October 2010
Nov	158.0 mm (6.2 in)	6 November 1989
Dec	106.9 mm (4.2 in)	5 December 2021

Period of Record Coverage

1979 to 2025

47 years of record at Tanna, 1979 to 2025. 47 years have data for under 90 percent of days and are left out of rankings: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986 and others.

Days with data per year at Tanna
Year	Days with data	Share of year	Complete
1979	137	38%	No
1980	150	41%	No
1981	139	38%	No
1982	296	81%	No
1983	243	67%	No
1984	294	80%	No
1985	251	69%	No
1986	274	75%	No
1987	274	75%	No
1988	279	76%	No
1989	280	77%	No
1990	227	62%	No
1991	225	62%	No
1992	226	62%	No
1993	213	58%	No
1994	208	57%	No
1995	238	65%	No
1996	241	66%	No
1997	247	68%	No
1998	128	35%	No
1999	121	33%	No
2000	191	52%	No
2001	72	20%	No
2002	112	31%	No
2003	195	53%	No
2004	169	46%	No
2005	261	72%	No
2006	226	62%	No
2007	242	66%	No
2008	244	67%	No
2009	228	62%	No
2010	272	75%	No
2011	310	85%	No
2012	317	87%	No
2013	290	79%	No
2014	285	78%	No
2015	274	75%	No
2016	268	73%	No
2017	196	54%	No
2018	34	9%	No
2019	145	40%	No
2020	132	36%	No
2021	152	42%	No
2022	209	57%	No
2023	106	29%	No
2024	2	1%	No
2025	52	14%	No

Latest Records

Latest records at Tanna
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 July 2025	Tanna, VU	daily high max	29.5 C (85.1 F)	0.5 C (0.9 F)	12 years	9 of 100 (Routine)
2 July 2025	Tanna, VU	daily high min	22.8 C (73.0 F)	1.8 C (3.2 F)	27 years	19 of 100 (Routine)
15 June 2025	Tanna, VU	daily high min (Tie)	22.1 C (71.8 F)	tie	4 years	1 of 100 (Routine)
13 June 2025	Tanna, VU	daily high max	30.0 C (86.0 F)	0.8 C (1.4 F)	18 years	13 of 100 (Routine)
11 June 2025	Tanna, VU	daily high max	30.5 C (86.9 F)	1.0 C (1.8 F)	11 years	12 of 100 (Routine)
5 June 2025	Tanna, VU	daily high max (Tie)	30.0 C (86.0 F)	tie	44 years	4 of 100 (Routine)
4 June 2025	Tanna, VU	daily high min (Tie)	22.0 C (71.6 F)	tie	40 years	4 of 100 (Routine)
22 December 2023	Tanna, VU	daily high max	32.1 C (89.8 F)	0.6 C (1.1 F)	1 year	8 of 100 (Routine)
22 October 2023	Tanna, VU	daily low max	26.3 C (79.3 F)	0.1 C (0.2 F)	37 years	15 of 100 (Routine)
27 August 2023	Tanna, VU	daily low min	14.0 C (57.2 F)	0.4 C (0.7 F)	30 years	14 of 100 (Routine)
19 August 2023	Tanna, VU	daily low min	12.0 C (53.6 F)	1.0 C (1.8 F)	12 years	11 of 100 (Routine)
12 August 2023	Tanna, VU	daily low min (Tie)	14.0 C (57.2 F)	tie	37 years	3 of 100 (Routine)
27 July 2023	Tanna, VU	daily low min	13.0 C (55.4 F)	1.5 C (2.7 F)	25 years	17 of 100 (Routine)
28 May 2023	Tanna, VU	daily high max (Tie)	30.0 C (86.0 F)	tie	44 years	4 of 100 (Routine)
18 May 2023	Tanna, VU	daily high max	31.5 C (88.7 F)	1.0 C (1.8 F)	5 years	11 of 100 (Routine)
11 May 2023	Tanna, VU	daily high max	31.0 C (87.8 F)	1.0 C (1.8 F)	42 years	22 of 100 (Routine)
9 May 2023	Tanna, VU	daily high max	32.0 C (89.6 F)	1.0 C (1.8 F)	1 year	10 of 100 (Routine)
8 May 2023	Tanna, VU	daily high max	33.0 C (91.4 F)	1.5 C (2.7 F)	1 year	13 of 100 (Routine)
7 May 2023	Tanna, VU	monthly high max	33.1 C (91.6 F)	1.1 C (2.0 F)	0 years	20 of 100 (Routine)
6 May 2023	Tanna, VU	monthly high max	32.0 C (89.6 F)	0.2 C (0.4 F)	0 years	15 of 100 (Routine)

Extremes by Year

1973 to 2025

Yearly extremes at Tanna: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.0 C (102.2 F)	1979	32.7 C (90.9 F)	47
Coldest night (TNn)	9.0 C (48.2 F)	1979	13.0 C (55.4 F)	47
Wettest day (Rx1day)	301.0 mm (11.9 in)	1998	102.1 mm (4.0 in)	53
Wettest five days (Rx5day)	435.1 mm (17.1 in)	2015	141.0 mm (5.6 in)	53
Longest dry spell (CDD)	48 days	1981	7 days	53

Hottest day (TXx)

The hottest day of the year at Tanna, 1973 to 2025. The record is 39.0 C (102.2 F) in 1979, marked on the chart; the median year is 32.7 C (90.9 F).

Hottest day (TXx) at Tanna by year
Year	Hottest day (TXx)
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	39.0 C (102.2 F)
1980	39.0 C (102.2 F)
1981	39.0 C (102.2 F)
1982	32.0 C (89.6 F)
1983	33.0 C (91.4 F)
1984	33.0 C (91.4 F)
1985	32.0 C (89.6 F)
1986	32.7 C (90.9 F)
1987	32.0 C (89.6 F)
1988	31.8 C (89.2 F)
1989	31.4 C (88.5 F)
1990	31.4 C (88.5 F)
1991	31.6 C (88.9 F)
1992	31.5 C (88.7 F)
1993	32.2 C (90.0 F)
1994	31.4 C (88.5 F)
1995	37.5 C (99.5 F)
1996	31.8 C (89.2 F)
1997	34.0 C (93.2 F)
1998	32.9 C (91.2 F)
1999	30.5 C (86.9 F)
2000	32.0 C (89.6 F)
2001	32.5 C (90.5 F)
2002	32.6 C (90.7 F)
2003	32.0 C (89.6 F)
2004	34.0 C (93.2 F)
2005	33.0 C (91.4 F)
2006	31.6 C (88.9 F)
2007	32.5 C (90.5 F)
2008	32.7 C (90.9 F)
2009	32.5 C (90.5 F)
2010	34.0 C (93.2 F)
2011	33.0 C (91.4 F)
2012	33.5 C (92.3 F)
2013	32.5 C (90.5 F)
2014	33.0 C (91.4 F)
2015	34.0 C (93.2 F)
2016	35.2 C (95.4 F)
2017	34.6 C (94.3 F)
2018	33.8 C (92.8 F)
2019	33.3 C (91.9 F)
2020	32.9 C (91.2 F)
2021	33.5 C (92.3 F)
2022	34.2 C (93.6 F)
2023	34.0 C (93.2 F)
2024	31.5 C (88.7 F)
2025	30.5 C (86.9 F)

Coldest night (TNn)

The coldest night of the year at Tanna, 1973 to 2025. The record is 9.0 C (48.2 F) in 1979, marked on the chart; the median year is 13.0 C (55.4 F).

Coldest night (TNn) at Tanna by year
Year	Coldest night (TNn)
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	9.0 C (48.2 F)
1980	9.0 C (48.2 F)
1981	10.0 C (50.0 F)
1982	14.0 C (57.2 F)
1983	13.0 C (55.4 F)
1984	11.0 C (51.8 F)
1985	13.0 C (55.4 F)
1986	11.4 C (52.5 F)
1987	13.5 C (56.3 F)
1988	13.5 C (56.3 F)
1989	13.0 C (55.4 F)
1990	14.0 C (57.2 F)
1991	13.6 C (56.5 F)
1992	13.5 C (56.3 F)
1993	13.0 C (55.4 F)
1994	12.5 C (54.5 F)
1995	12.4 C (54.3 F)
1996	12.4 C (54.3 F)
1997	11.1 C (52.0 F)
1998	12.0 C (53.6 F)
1999	15.5 C (59.9 F)
2000	14.5 C (58.1 F)
2001	14.0 C (57.2 F)
2002	15.0 C (59.0 F)
2003	12.5 C (54.5 F)
2004	13.0 C (55.4 F)
2005	12.2 C (54.0 F)
2006	12.5 C (54.5 F)
2007	15.0 C (59.0 F)
2008	15.0 C (59.0 F)
2009	13.5 C (56.3 F)
2010	10.0 C (50.0 F)
2011	9.0 C (48.2 F)
2012	12.0 C (53.6 F)
2013	12.5 C (54.5 F)
2014	13.7 C (56.7 F)
2015	11.8 C (53.2 F)
2016	12.0 C (53.6 F)
2017	12.0 C (53.6 F)
2018	12.0 C (53.6 F)
2019	10.5 C (50.9 F)
2020	13.2 C (55.8 F)
2021	13.9 C (57.0 F)
2022	15.1 C (59.2 F)
2023	12.0 C (53.6 F)
2024	21.9 C (71.4 F)
2025	14.6 C (58.3 F)

Wettest day (Rx1day)

The wettest day of the year at Tanna, 1973 to 2025. The record is 301.0 mm (11.9 in) in 1998, marked on the chart; the median year is 102.1 mm (4.0 in).

Wettest day (Rx1day) at Tanna by year
Year	Wettest day (Rx1day)
1973	153.9 mm (6.1 in)
1974	56.9 mm (2.2 in)
1975	130.0 mm (5.1 in)
1976	88.9 mm (3.5 in)
1977	108.0 mm (4.3 in)
1978	66.0 mm (2.6 in)
1979	7.1 mm (0.28 in)
1980	9.9 mm (0.39 in)
1981	10.9 mm (0.4 in)
1982	99.1 mm (3.9 in)
1983	55.9 mm (2.2 in)
1984	27.9 mm (1.1 in)
1985	152.9 mm (6.0 in)
1986	71.9 mm (2.8 in)
1987	73.9 mm (2.9 in)
1988	249.9 mm (9.8 in)
1989	175.0 mm (6.9 in)
1990	53.1 mm (2.1 in)
1991	73.9 mm (2.9 in)
1992	74.9 mm (2.9 in)
1993	103.9 mm (4.1 in)
1994	111.0 mm (4.4 in)
1995	113.0 mm (4.4 in)
1996	102.1 mm (4.0 in)
1997	56.9 mm (2.2 in)
1998	301.0 mm (11.9 in)
1999	120.9 mm (4.8 in)
2000	136.9 mm (5.4 in)
2001	70.1 mm (2.8 in)
2002	59.9 mm (2.4 in)
2003	75.9 mm (3.0 in)
2004	70.1 mm (2.8 in)
2005	70.1 mm (2.8 in)
2006	96.0 mm (3.8 in)
2007	171.7 mm (6.8 in)
2008	114.0 mm (4.5 in)
2009	192.5 mm (7.6 in)
2010	162.1 mm (6.4 in)
2011	109.0 mm (4.3 in)
2012	137.9 mm (5.4 in)
2013	138.9 mm (5.5 in)
2014	95.0 mm (3.7 in)
2015	255.0 mm (10.0 in)
2016	71.1 mm (2.8 in)
2017	63.0 mm (2.5 in)
2018	238.0 mm (9.4 in)
2019	56.9 mm (2.2 in)
2020	89.9 mm (3.5 in)
2021	146.1 mm (5.8 in)
2022	153.9 mm (6.1 in)
2023	154.9 mm (6.1 in)
2024	116.1 mm (4.6 in)
2025	127.0 mm (5.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tanna, 1973 to 2025. The record is 435.1 mm (17.1 in) in 2015, marked on the chart; the median year is 141.0 mm (5.6 in).

Wettest five days (Rx5day) at Tanna by year
Year	Wettest five days (Rx5day)
1973	271.0 mm (10.7 in)
1974	35.9 mm (1.4 in)
1975	0.0 mm (0.00 in)
1976	0.0 mm (0.00 in)
1977	108.0 mm (4.3 in)
1978	9.9 mm (0.39 in)
1979	7.1 mm (0.28 in)
1980	9.9 mm (0.39 in)
1981	10.9 mm (0.4 in)
1982	108.2 mm (4.3 in)
1983	6.4 mm (0.25 in)
1984	33.0 mm (1.3 in)
1985	232.9 mm (9.2 in)
1986	111.0 mm (4.4 in)
1987	82.0 mm (3.2 in)
1988	330.9 mm (13.0 in)
1989	249.2 mm (9.8 in)
1990	84.7 mm (3.3 in)
1991	146.0 mm (5.7 in)
1992	140.9 mm (5.5 in)
1993	122.0 mm (4.8 in)
1994	204.3 mm (8.0 in)
1995	139.2 mm (5.5 in)
1996	250.9 mm (9.9 in)
1997	79.0 mm (3.1 in)
1998	68.1 mm (2.7 in)
1999	93.3 mm (3.7 in)
2000	298.2 mm (11.7 in)
2001	142.0 mm (5.6 in)
2002	118.8 mm (4.7 in)
2003	141.0 mm (5.6 in)
2004	147.1 mm (5.8 in)
2005	176.9 mm (7.0 in)
2006	122.1 mm (4.8 in)
2007	175.7 mm (6.9 in)
2008	167.9 mm (6.6 in)
2009	163.1 mm (6.4 in)
2010	193.9 mm (7.6 in)
2011	198.9 mm (7.8 in)
2012	237.5 mm (9.4 in)
2013	171.2 mm (6.7 in)
2014	120.2 mm (4.7 in)
2015	435.1 mm (17.1 in)
2016	144.2 mm (5.7 in)
2017	101.1 mm (4.0 in)
2018	331.9 mm (13.1 in)
2019	86.4 mm (3.4 in)
2020	204.2 mm (8.0 in)
2021	293.4 mm (11.6 in)
2022	214.2 mm (8.4 in)
2023	98.1 mm (3.9 in)
2024	176.9 mm (7.0 in)
2025	243.1 mm (9.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tanna, 1973 to 2025. The record is 48 days in 1981, marked on the chart; the median year is 7 days.

Longest dry spell (CDD) at Tanna by year
Year	Longest dry spell (CDD)
1973	24 days
1974	21 days
1975	12 days
1976	20 days
1977	38 days
1978	37 days
1979	23 days
1980	35 days
1981	48 days
1982	6 days
1983	3 days
1984	3 days
1985	5 days
1986	10 days
1987	7 days
1988	7 days
1989	12 days
1990	24 days
1991	23 days
1992	20 days
1993	16 days
1994	38 days
1995	15 days
1996	11 days
1997	8 days
1998	3 days
1999	5 days
2000	6 days
2001	2 days
2002	4 days
2003	6 days
2004	7 days
2005	9 days
2006	5 days
2007	9 days
2008	5 days
2009	5 days
2010	5 days
2011	7 days
2012	6 days
2013	3 days
2014	5 days
2015	8 days
2016	8 days
2017	4 days
2018	4 days
2019	4 days
2020	5 days
2021	6 days
2022	6 days
2023	5 days
2024	3 days
2025	6 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 Tanna standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tanna 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 2026-10-16 (16 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).