Ban Na climate — normals and trends

Q: What is the climate of Ban Na?

Ban Na has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.9 °C and it receives 1,467 mm of precipitation per year.

Q: What is the hottest day ever recorded in Ban Na?

The hottest day measured in Ban Na between 1940 and 2025 was 11 May 2016, reaching 44.9 °C.

Q: What is the coldest day in Ban Na?

The coldest day measured in Ban Na between 1940 and 2025 was 5 January 1974, at 6.7 °C.

Q: Does it snow in Ban Na?

Almost never: Ban Na sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Ban Na warmed?

Yes: Ban Na warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Ban Na?

The wettest day measured in Ban Na between 1940 and 2025 was 6 September 1977, with 202 mm of rain in 24 hours.

Q: What was the windiest day in Ban Na?

The windiest day measured in Ban Na between 1940 and 2025 was 5 May 1982, with winds reaching 26.6 km/h.

Q: What is the warmest month in Ban Na?

The warmest month in Ban Na is April (31.6 °C on average); the coldest is December (24.0 °C).

Q: How much does it rain in Ban Na?

Ban Na receives on average 1,467 mm of precipitation per year, spread over about 158 rainy days.

Q: Is it sunny in Ban Na?

Ban Na gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Ban Na (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.9 °C and it receives 1,467 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is April (31.6 °C on average) and the coldest is December (24.0 °C). Rainfall peaks in September.

Ban Na averages 0 frost days, 318 hot days (≥ 30 °C) and 158 rainy days per year.

Ban Na has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.

The hottest day of the period reached 44.9 °C (on 11 May 2016) and the coldest 6.7 °C (on 5 January 1974).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

Ban NaSukhothai

coords: 17.02°, 99.73°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthDecemberWettest monthSeptemberDriest monthDecember

Mean daily temperature

27.9°C

Average daily high

33.3°C

Average daily low

23.6°C

Annual rainfall

1,467mm

Sunshine / day

9.8h

Mean relative humidity

71%

Average peak wind

10.1km/h

Seasonal range

7.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

318 d/yr

Rainy days (≥ 1 mm)

158 d/yr

Annual snowfall

0.0 cm

Average feels-like high

37.9 °C

Average feels-like low

27.4 °C

Average peak gust

27.3 km/h

Tropical nights (≥ 20 °C)

307 d/yr

Solar radiation

18.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.2 °C

since 1940

+0.3 °C per decade · r² = 0.71 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

44.9 °C

11 May 2016

Coldest day

6.7 °C

5 January 1974

Wettest day

202 mm

6 September 1977

Windiest day

26.6 km/h

5 May 1982

Strongest gust

70.2 km/h

22 October 1952

Hottest feels-like

48.8 °C

3 May 2024

Coldest feels-like

4.5 °C

5 January 1974

Sunniest day

12.9 h

28 June 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	41.3 °C25 April 2025	12.8 °C14 January 2025	28.4 °C	1,470 mm	330
2024	44.1 °C29 April 2024	16.6 °C7 February 2024	29.3 °C	1,431 mm	346
2023	43.7 °C7 May 2023	14.6 °C31 January 2023	29.4 °C	1,158 mm	348
2022	40.9 °C27 April 2022	15.5 °C20 December 2022	28.5 °C	1,567 mm	344
2021	40.6 °C27 March 2021	14.1 °C3 January 2021	28.7 °C	1,593 mm	336
2020	43.6 °C21 April 2020	15.3 °C23 December 2020	29.6 °C	1,090 mm	345
2019	43.1 °C20 April 2019	11.8 °C8 December 2019	29.0 °C	1,419 mm	349
2018	40.9 °C15 April 2018	16.1 °C14 January 2018	28.3 °C	1,354 mm	338
2017	40.6 °C3 May 2017	12.6 °C21 December 2017	28.5 °C	1,733 mm	340
2016	44.9 °C11 May 2016	11.0 °C9 February 2016	29.2 °C	1,315 mm	346
2015	41.9 °C20 April 2015	14.0 °C3 January 2015	29.1 °C	1,197 mm	341
2014	42.2 °C23 April 2014	10.2 °C24 January 2014	28.4 °C	1,202 mm	339
2013	41.4 °C1 May 2013	12.7 °C22 December 2013	28.2 °C	1,622 mm	318
2012	41.7 °C26 April 2012	14.4 °C17 January 2012	28.6 °C	1,377 mm	350
2011	37.9 °C18 April 2011	15.3 °C27 December 2011	27.4 °C	1,681 mm	319
2010	43.0 °C5 April 2010	15.9 °C30 December 2010	29.2 °C	1,559 mm	341
2009	41.0 °C25 April 2009	10.6 °C14 January 2009	28.1 °C	1,470 mm	338
2008	40.8 °C17 April 2008	13.2 °C3 January 2008	28.1 °C	1,503 mm	325
2007	42.9 °C1 April 2007	12.4 °C2 February 2007	28.6 °C	1,667 mm	343
2006	42.0 °C10 April 2006	11.5 °C23 December 2006	28.6 °C	1,582 mm	339
2005	41.9 °C1 May 2005	13.8 °C20 December 2005	29.1 °C	1,337 mm	338
2004	43.0 °C13 April 2004	14.8 °C14 December 2004	28.7 °C	1,105 mm	354
2003	41.5 °C7 May 2003	13.9 °C22 December 2003	28.4 °C	1,235 mm	341
2002	42.0 °C17 April 2002	14.6 °C4 January 2002	28.5 °C	1,509 mm	332
2001	41.6 °C28 April 2001	14.2 °C22 November 2001	28.1 °C	1,734 mm	320
2000	41.3 °C5 April 2000	13.7 °C3 February 2000	27.7 °C	1,689 mm	335
1999	41.1 °C13 March 1999	6.9 °C26 December 1999	27.9 °C	1,733 mm	320
1998	42.9 °C1 May 1998	14.9 °C13 December 1998	29.5 °C	1,093 mm	350
1997	41.8 °C15 May 1997	14.9 °C10 February 1997	28.6 °C	1,129 mm	349
1996	40.7 °C1 April 1996	11.5 °C2 January 1996	27.7 °C	1,647 mm	328
1995	43.1 °C23 April 1995	11.8 °C31 December 1995	28.3 °C	1,642 mm	327
1994	41.2 °C24 April 1994	14.7 °C1 January 1994	28.2 °C	1,881 mm	341
1993	42.5 °C5 May 1993	10.0 °C28 December 1993	28.2 °C	1,132 mm	327
1992	43.8 °C21 April 1992	12.1 °C3 December 1992	28.1 °C	1,437 mm	317
1991	43.6 °C13 April 1991	16.0 °C17 November 1991	28.7 °C	1,432 mm	348
1990	43.2 °C23 April 1990	14.0 °C6 December 1990	28.4 °C	1,462 mm	345
1989	42.0 °C16 April 1989	13.4 °C3 December 1989	28.6 °C	1,068 mm	348
1988	42.7 °C3 April 1988	14.1 °C15 December 1988	28.2 °C	1,687 mm	326
1987	43.0 °C14 April 1987	12.0 °C9 December 1987	28.5 °C	1,437 mm	321
1986	41.2 °C27 March 1986	10.9 °C9 January 1986	27.7 °C	1,337 mm	317
1985	42.5 °C13 April 1985	12.3 °C25 December 1985	27.9 °C	1,412 mm	324
1984	41.6 °C5 April 1984	13.2 °C10 January 1984	27.8 °C	1,331 mm	328
1983	44.0 °C14 April 1983	11.6 °C27 January 1983	28.3 °C	1,442 mm	305
1982	41.3 °C12 May 1982	11.4 °C21 December 1982	27.7 °C	1,270 mm	319
1981	41.3 °C6 April 1981	13.5 °C23 December 1981	27.8 °C	1,428 mm	314
1980	43.5 °C1 May 1980	15.8 °C9 January 1980	28.5 °C	1,584 mm	348
1979	41.9 °C6 May 1979	14.5 °C28 December 1979	28.2 °C	1,457 mm	332
1978	42.8 °C7 April 1978	12.4 °C19 December 1978	28.2 °C	1,625 mm	335
1977	41.1 °C18 April 1977	14.2 °C11 December 1977	27.8 °C	1,498 mm	322
1976	42.2 °C31 March 1976	7.9 °C1 January 1976	27.2 °C	1,911 mm	310
1975	42.5 °C29 April 1975	7.3 °C31 December 1975	27.2 °C	1,821 mm	310
1974	39.8 °C20 April 1974	6.7 °C5 January 1974	27.3 °C	1,661 mm	312
1973	42.0 °C27 April 1973	8.1 °C27 December 1973	27.5 °C	1,570 mm	322
1972	41.9 °C14 May 1972	11.7 °C16 January 1972	27.9 °C	1,447 mm	318
1971	40.7 °C26 April 1971	9.5 °C10 January 1971	27.0 °C	1,664 mm	291
1970	41.0 °C13 May 1970	15.4 °C19 December 1970	27.6 °C	1,749 mm	321
1969	43.5 °C5 May 1969	13.3 °C6 December 1969	28.0 °C	1,497 mm	313
1968	41.0 °C3 April 1968	13.7 °C20 January 1968	27.8 °C	1,235 mm	355
1967	40.3 °C11 April 1967	10.6 °C18 January 1967	27.6 °C	1,129 mm	322
1966	40.9 °C26 April 1966	14.0 °C2 January 1966	27.5 °C	1,436 mm	279
1965	42.3 °C30 April 1965	12.1 °C21 January 1965	27.6 °C	1,923 mm	330
1964	41.7 °C6 April 1964	11.5 °C21 December 1964	27.3 °C	1,467 mm	302
1963	43.5 °C16 May 1963	8.4 °C28 January 1963	27.5 °C	1,475 mm	303
1962	41.9 °C13 April 1962	10.6 °C7 December 1962	27.5 °C	1,468 mm	312
1961	41.1 °C25 April 1961	7.9 °C19 January 1961	27.4 °C	1,373 mm	307
1960	43.2 °C28 April 1960	12.6 °C3 January 1960	28.0 °C	1,717 mm	309
1959	42.2 °C11 April 1959	13.9 °C1 January 1959	27.8 °C	1,518 mm	332
1958	41.9 °C25 April 1958	12.9 °C13 December 1958	27.6 °C	1,193 mm	300
1957	41.0 °C13 May 1957	14.2 °C6 January 1957	27.5 °C	1,831 mm	329
1956	40.1 °C11 April 1956	11.9 °C29 November 1956	27.0 °C	1,456 mm	304
1955	40.7 °C18 April 1955	8.0 °C12 January 1955	26.9 °C	1,275 mm	314
1954	39.7 °C18 April 1954	11.9 °C18 December 1954	27.2 °C	1,233 mm	335
1953	37.1 °C15 April 1953	12.9 °C13 December 1953	25.9 °C	2,265 mm	232
1952	39.0 °C1 May 1952	12.2 °C10 January 1952	26.8 °C	1,826 mm	287
1951	40.4 °C7 April 1951	14.9 °C2 January 1951	27.2 °C	1,232 mm	277
1950	41.8 °C24 April 1950	13.6 °C1 February 1950	27.2 °C	1,241 mm	286
1949	38.4 °C26 February 1949	11.7 °C17 January 1949	27.1 °C	1,083 mm	313
1948	39.5 °C22 March 1948	10.6 °C3 January 1948	26.8 °C	1,512 mm	290
1947	39.2 °C7 May 1947	11.9 °C31 December 1947	27.4 °C	1,180 mm	309
1946	40.6 °C12 March 1946	11.5 °C11 January 1946	27.0 °C	1,206 mm	305
1945	39.8 °C1 April 1945	14.0 °C24 December 1945	26.8 °C	1,616 mm	278
1944	41.3 °C4 May 1944	11.7 °C22 December 1944	27.1 °C	1,501 mm	266
1943	40.0 °C7 April 1943	13.7 °C24 January 1943	26.6 °C	1,371 mm	274
1942	39.0 °C25 April 1942	13.4 °C7 December 1942	26.3 °C	1,517 mm	204
1941	40.1 °C4 April 1941	16.6 °C26 January 1941	26.8 °C	1,387 mm	227
1940	38.9 °C10 March 1940	11.0 °C1 January 1940	26.4 °C	1,405 mm	220

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

33.6 °C

+0.3 °C

Hot days (≥ 30 °C)

330 d/yr

+12

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1470 mm

+3 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	30.8 °C	-0.6 °C	0 mm	-13 mm
Feb	34.1 °C	-0.1 °C	23 mm	+8 mm
Mar	37.3 °C	+0.5 °C	6 mm	-30 mm
Apr	38.1 °C	+0.2 °C	62 mm	-5 mm
May	35.0 °C	-0.5 °C	229 mm	+22 mm
Jun	33.9 °C	+0.6 °C	198 mm	-15 mm
Jul	32.3 °C	-0.2 °C	219 mm	+25 mm
Aug	34.0 °C	+1.8 °C	191 mm	-35 mm
Sep	33.1 °C	+0.8 °C	296 mm	+19 mm
Oct	33.4 °C	+1.3 °C	99 mm	-69 mm
Nov	30.4 °C	-0.9 °C	123 mm	+82 mm
Dec	30.9 °C	+0.6 °C	23 mm	+13 mm

The year's extremes

Hottest day

41.3 °C

25 Apr 2025

Coldest day

12.8 °C

14 Jan 2025

Wettest day

80.8 mm

31 Aug 2025

Windiest day

22.3 km/h

13 Mar 2025

Strongest gust

55.8 km/h

23 Jul 2025

Hottest feels-like

46.1 °C

9 Apr 2025

Coldest feels-like

12.4 °C

14 Jan 2025

Sunniest day

12.8 h

6 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Ban Na?

Ban Na has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.9 °C and it receives 1,467 mm of precipitation per year.

What is the hottest day ever recorded in Ban Na?

The hottest day measured in Ban Na between 1940 and 2025 was 11 May 2016, reaching 44.9 °C.

What is the coldest day in Ban Na?

The coldest day measured in Ban Na between 1940 and 2025 was 5 January 1974, at 6.7 °C.

Does it snow in Ban Na?

Almost never: Ban Na sees virtually no snow, with about 0 frost days per year.

Has the climate of Ban Na warmed?

Yes: Ban Na warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Ban Na?

The wettest day measured in Ban Na between 1940 and 2025 was 6 September 1977, with 202 mm of rain in 24 hours.

What was the windiest day in Ban Na?

The windiest day measured in Ban Na between 1940 and 2025 was 5 May 1982, with winds reaching 26.6 km/h.

What is the warmest month in Ban Na?

The warmest month in Ban Na is April (31.6 °C on average); the coldest is December (24.0 °C).

How much does it rain in Ban Na?

Ban Na receives on average 1,467 mm of precipitation per year, spread over about 158 rainy days.

Is it sunny in Ban Na?

Ban Na gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Are there tropical nights in Ban Na?

Yes: Ban Na has on average 307 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Ban Na?

In Ban Na, between 1940 and 2025, the highest apparent temperature reached 48.8 °C on 3 May 2024, and the lowest was 4.5 °C on 5 January 1974.

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