Lat Yao climate — normals and trends

Q: What is the climate of Lat Yao?

Lat Yao has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.9 °C and it receives 1,247 mm of precipitation per year.

Q: What is the hottest day ever recorded in Lat Yao?

The hottest day measured in Lat Yao between 1940 and 2025 was 21 April 1992, reaching 44.0 °C.

Q: What is the coldest day in Lat Yao?

The coldest day measured in Lat Yao between 1940 and 2025 was 25 December 1999, at 7.6 °C.

Q: Does it snow in Lat Yao?

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

Q: Has the climate of Lat Yao warmed?

Yes: Lat Yao warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Lat Yao?

The wettest day measured in Lat Yao between 1940 and 2025 was 8 June 1972, with 137 mm of rain in 24 hours.

Q: What was the windiest day in Lat Yao?

The windiest day measured in Lat Yao between 1940 and 2025 was 10 May 1986, with winds reaching 31.8 km/h.

Q: What is the warmest month in Lat Yao?

The warmest month in Lat Yao is April (31.1 °C on average); the coldest is December (23.9 °C).

Q: How much does it rain in Lat Yao?

Lat Yao receives on average 1,247 mm of precipitation per year, spread over about 164 rainy days.

Q: Is it sunny in Lat Yao?

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

Lat Yao (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.9 °C and it receives 1,247 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 (31.1 °C on average) and the coldest is December (23.9 °C). Rainfall peaks in September.

Lat Yao averages 0 frost days, 317 hot days (≥ 30 °C) and 164 rainy days per year.

Lat Yao has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.

The hottest day of the period reached 44.0 °C (on 21 April 1992) and the coldest 7.6 °C (on 25 December 1999).

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

Lat YaoNakhon Sawan

coords: 15.75°, 99.79°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthDecemberWettest monthSeptemberDriest monthDecember

Mean daily temperature

27.9°C

Average daily high

33.4°C

Average daily low

23.4°C

Annual rainfall

1,247mm

Sunshine / day

9.8h

Mean relative humidity

70%

Average peak wind

9.8km/h

Seasonal range

7.2°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

317 d/yr

Rainy days (≥ 1 mm)

164 d/yr

Annual snowfall

0.0 cm

Average feels-like high

38.0 °C

Average feels-like low

27.2 °C

Average peak gust

26.0 km/h

Tropical nights (≥ 20 °C)

308 d/yr

Solar radiation

18.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.2 °C per decade · r² = 0.64 · 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

44.0 °C

21 April 1992

Coldest day

7.6 °C

25 December 1999

Wettest day

137 mm

8 June 1972

Windiest day

31.8 km/h

10 May 1986

Strongest gust

64.1 km/h

19 October 1983

Hottest feels-like

50.0 °C

11 May 2016

Coldest feels-like

5.0 °C

12 January 1955

Sunniest day

12.9 h

26 June 1941

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	40.6 °C26 April 2025	13.5 °C14 January 2025	28.2 °C	1,445 mm	327
2024	43.2 °C28 April 2024	15.7 °C21 December 2024	29.2 °C	1,174 mm	349
2023	42.4 °C7 May 2023	13.8 °C23 January 2023	29.0 °C	1,112 mm	341
2022	40.3 °C26 April 2022	16.0 °C27 December 2022	28.1 °C	1,395 mm	337
2021	40.1 °C21 May 2021	13.6 °C20 January 2021	28.3 °C	1,445 mm	331
2020	42.8 °C21 April 2020	15.3 °C28 January 2020	29.3 °C	1,170 mm	338
2019	42.3 °C3 May 2019	13.0 °C7 December 2019	28.8 °C	1,103 mm	348
2018	39.7 °C15 April 2018	15.9 °C15 January 2018	28.2 °C	1,090 mm	334
2017	40.1 °C24 April 2017	11.7 °C21 December 2017	28.2 °C	1,532 mm	329
2016	43.9 °C8 May 2016	9.6 °C9 February 2016	29.0 °C	1,165 mm	339
2015	41.4 °C11 July 2015	13.8 °C4 January 2015	28.8 °C	1,020 mm	340
2014	40.3 °C22 April 2014	9.2 °C24 January 2014	28.4 °C	929 mm	343
2013	41.6 °C1 May 2013	12.6 °C29 December 2013	28.2 °C	1,259 mm	321
2012	41.0 °C26 April 2012	17.9 °C10 January 2012	28.8 °C	1,177 mm	358
2011	38.3 °C18 April 2011	15.3 °C14 December 2011	27.5 °C	1,545 mm	319
2010	41.8 °C14 May 2010	15.2 °C30 December 2010	29.0 °C	1,251 mm	337
2009	40.5 °C23 April 2009	12.1 °C17 January 2009	28.0 °C	1,188 mm	339
2008	39.9 °C10 April 2008	13.0 °C3 January 2008	27.9 °C	1,382 mm	320
2007	42.3 °C24 April 2007	12.2 °C4 February 2007	28.5 °C	1,466 mm	328
2006	40.3 °C11 April 2006	11.4 °C24 December 2006	28.6 °C	1,270 mm	345
2005	41.5 °C28 April 2005	12.9 °C3 January 2005	29.0 °C	1,094 mm	334
2004	42.0 °C15 April 2004	15.1 °C21 December 2004	28.6 °C	813 mm	352
2003	40.4 °C8 May 2003	14.5 °C22 December 2003	28.1 °C	1,178 mm	346
2002	40.8 °C5 April 2002	15.2 °C4 January 2002	28.8 °C	1,291 mm	336
2001	42.2 °C11 April 2001	14.8 °C27 November 2001	28.5 °C	1,148 mm	327
2000	40.0 °C4 April 2000	12.9 °C3 February 2000	27.5 °C	1,428 mm	326
1999	40.3 °C17 March 1999	7.6 °C25 December 1999	27.7 °C	1,690 mm	314
1998	43.0 °C16 April 1998	15.5 °C16 January 1998	29.2 °C	972 mm	347
1997	40.5 °C13 May 1997	13.8 °C9 February 1997	28.6 °C	955 mm	349
1996	39.2 °C31 March 1996	10.6 °C2 January 1996	27.6 °C	1,462 mm	313
1995	43.0 °C23 April 1995	12.5 °C7 January 1995	28.3 °C	1,328 mm	322
1994	40.4 °C12 April 1994	14.2 °C27 December 1994	28.0 °C	1,456 mm	340
1993	41.8 °C4 May 1993	11.1 °C28 December 1993	28.2 °C	887 mm	330
1992	44.0 °C21 April 1992	12.7 °C2 December 1992	28.3 °C	1,327 mm	314
1991	42.1 °C13 April 1991	15.5 °C21 November 1991	28.6 °C	1,131 mm	346
1990	42.6 °C23 April 1990	14.5 °C6 December 1990	28.7 °C	1,084 mm	344
1989	40.8 °C5 May 1989	13.4 °C4 December 1989	28.2 °C	1,095 mm	332
1988	41.4 °C6 April 1988	13.6 °C14 December 1988	28.1 °C	1,432 mm	317
1987	41.6 °C26 April 1987	12.6 °C9 December 1987	28.8 °C	1,050 mm	325
1986	40.5 °C27 March 1986	11.6 °C9 January 1986	27.8 °C	1,064 mm	327
1985	41.7 °C13 April 1985	12.8 °C18 December 1985	27.8 °C	1,250 mm	321
1984	40.8 °C9 April 1984	11.9 °C10 January 1984	27.8 °C	1,042 mm	325
1983	43.5 °C14 April 1983	12.0 °C27 January 1983	28.4 °C	1,278 mm	301
1982	41.2 °C3 May 1982	10.5 °C21 December 1982	27.8 °C	994 mm	325
1981	39.8 °C6 April 1981	12.6 °C15 January 1981	27.6 °C	1,162 mm	317
1980	43.0 °C2 May 1980	14.7 °C25 December 1980	28.4 °C	1,219 mm	340
1979	40.6 °C14 May 1979	13.6 °C28 December 1979	28.1 °C	1,172 mm	336
1978	41.8 °C7 April 1978	12.7 °C16 December 1978	28.2 °C	1,290 mm	329
1977	41.4 °C18 April 1977	14.2 °C18 November 1977	27.9 °C	1,052 mm	326
1976	42.0 °C17 April 1976	8.0 °C1 January 1976	27.1 °C	1,818 mm	305
1975	41.2 °C29 April 1975	7.8 °C31 December 1975	27.2 °C	1,525 mm	309
1974	41.5 °C20 April 1974	8.5 °C5 January 1974	27.4 °C	1,524 mm	308
1973	41.6 °C25 April 1973	8.4 °C27 December 1973	27.6 °C	1,210 mm	310
1972	42.8 °C5 May 1972	12.4 °C16 January 1972	27.9 °C	1,661 mm	315
1971	41.0 °C8 April 1971	10.7 °C10 January 1971	27.2 °C	1,230 mm	302
1970	41.6 °C20 April 1970	14.5 °C4 January 1970	27.8 °C	1,341 mm	316
1969	42.3 °C22 April 1969	11.8 °C6 December 1969	28.4 °C	1,198 mm	314
1968	42.2 °C3 April 1968	12.0 °C6 January 1968	28.2 °C	1,013 mm	353
1967	40.5 °C31 March 1967	11.9 °C17 January 1967	27.6 °C	1,069 mm	318
1966	39.7 °C23 April 1966	13.6 °C2 January 1966	27.2 °C	1,470 mm	271
1965	41.1 °C29 April 1965	11.1 °C22 January 1965	27.6 °C	1,306 mm	332
1964	41.2 °C7 April 1964	11.0 °C21 December 1964	27.3 °C	1,352 mm	299
1963	42.4 °C16 May 1963	9.6 °C28 January 1963	27.4 °C	1,361 mm	294
1962	41.3 °C15 April 1962	10.9 °C6 December 1962	27.3 °C	1,159 mm	303
1961	40.2 °C14 April 1961	9.4 °C19 January 1961	27.2 °C	1,236 mm	313
1960	42.4 °C28 April 1960	9.0 °C4 January 1960	28.2 °C	1,103 mm	319
1959	40.7 °C11 April 1959	13.5 °C1 January 1959	27.7 °C	1,056 mm	319
1958	40.9 °C25 March 1958	13.4 °C16 December 1958	27.6 °C	1,032 mm	298
1957	40.9 °C23 April 1957	10.1 °C6 February 1957	27.4 °C	1,464 mm	317
1956	39.8 °C26 March 1956	11.0 °C18 January 1956	26.7 °C	1,224 mm	292
1955	40.4 °C18 April 1955	8.2 °C12 January 1955	26.5 °C	1,327 mm	296
1954	40.2 °C18 April 1954	11.8 °C18 December 1954	27.2 °C	1,012 mm	322
1953	37.0 °C15 April 1953	12.8 °C13 December 1953	25.8 °C	2,128 mm	237
1952	40.2 °C6 May 1952	12.1 °C9 January 1952	27.0 °C	1,497 mm	284
1951	40.6 °C8 April 1951	12.9 °C2 January 1951	27.3 °C	1,074 mm	288
1950	40.4 °C24 April 1950	10.9 °C2 January 1950	27.1 °C	1,311 mm	290
1949	38.2 °C14 May 1949	10.9 °C18 January 1949	27.1 °C	901 mm	311
1948	39.5 °C19 March 1948	12.0 °C3 January 1948	26.8 °C	1,321 mm	290
1947	38.8 °C25 April 1947	13.0 °C31 December 1947	27.6 °C	1,004 mm	323
1946	39.6 °C28 March 1946	12.7 °C3 January 1946	27.2 °C	916 mm	314
1945	39.0 °C1 April 1945	13.8 °C24 December 1945	26.7 °C	1,235 mm	291
1944	40.9 °C4 May 1944	12.0 °C23 December 1944	26.9 °C	1,473 mm	278
1943	39.0 °C6 April 1943	12.2 °C25 January 1943	26.3 °C	1,321 mm	264
1942	38.1 °C20 April 1942	11.7 °C16 December 1942	26.3 °C	1,310 mm	241
1941	39.5 °C26 April 1941	14.3 °C24 January 1941	26.7 °C	1,212 mm	240
1940	38.2 °C11 March 1940	10.1 °C1 January 1940	26.2 °C	1,400 mm	237

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

33.5 °C

+0.1 °C

Hot days (≥ 30 °C)

327 d/yr

+10

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1445 mm

+198 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.1 °C	-0.5 °C	0 mm	-10 mm
Feb	33.8 °C	-0.4 °C	27 mm	+13 mm
Mar	36.6 °C	+0.2 °C	9 mm	-25 mm
Apr	37.4 °C	0.0 °C	69 mm	+12 mm
May	34.7 °C	-0.9 °C	260 mm	+115 mm
Jun	34.5 °C	+0.3 °C	132 mm	-13 mm
Jul	33.4 °C	-0.1 °C	132 mm	-13 mm
Aug	34.4 °C	+1.5 °C	188 mm	+8 mm
Sep	32.9 °C	+0.7 °C	286 mm	+14 mm
Oct	32.4 °C	+0.9 °C	162 mm	-30 mm
Nov	29.9 °C	-0.9 °C	171 mm	+125 mm
Dec	30.6 °C	+0.5 °C	10 mm	+1 mm

The year's extremes

Hottest day

40.6 °C

26 Apr 2025

Coldest day

13.5 °C

14 Jan 2025

Wettest day

62.1 mm

2 Nov 2025

Windiest day

18.2 km/h

27 Jan 2025

Strongest gust

56.9 km/h

24 Jul 2025

Hottest feels-like

46.9 °C

25 Apr 2025

Coldest feels-like

13.6 °C

30 Nov 2025

Sunniest day

12.9 h

24 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 Lat Yao?

Lat Yao has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.9 °C and it receives 1,247 mm of precipitation per year.

What is the hottest day ever recorded in Lat Yao?

The hottest day measured in Lat Yao between 1940 and 2025 was 21 April 1992, reaching 44.0 °C.

What is the coldest day in Lat Yao?

The coldest day measured in Lat Yao between 1940 and 2025 was 25 December 1999, at 7.6 °C.

Does it snow in Lat Yao?

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

Has the climate of Lat Yao warmed?

Yes: Lat Yao warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Lat Yao?

The wettest day measured in Lat Yao between 1940 and 2025 was 8 June 1972, with 137 mm of rain in 24 hours.

What was the windiest day in Lat Yao?

The windiest day measured in Lat Yao between 1940 and 2025 was 10 May 1986, with winds reaching 31.8 km/h.

What is the warmest month in Lat Yao?

The warmest month in Lat Yao is April (31.1 °C on average); the coldest is December (23.9 °C).

How much does it rain in Lat Yao?

Lat Yao receives on average 1,247 mm of precipitation per year, spread over about 164 rainy days.

Is it sunny in Lat Yao?

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

Are there tropical nights in Lat Yao?

Yes: Lat Yao has on average 308 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Lat Yao?

In Lat Yao, between 1940 and 2025, the highest apparent temperature reached 50.0 °C on 11 May 2016, and the lowest was 5.0 °C on 12 January 1955.

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