Bangkok · Thailand

Bangkok in May: every year compared

In May, Bangkok averages highs of 34.6 °C and lows of 27.6 °C, with 130 mm of precipitation. The warmest May was 1992 (31.7 °C), the coldest 1943 (27.3 °C).

Avg. highAvg. high 34.6 °C

Avg. lowAvg. low 27.6 °C

PrecipitationPrecipitation 130 mm

Rainy daysRainy days 20

Day by day through May

Normal high and low for each day of May in Bangkok.

Normal high and low, day by dayNormal 1991–2020

Every May in Bangkok, ranked

86 months of May since 1940. The last one, 2025, ranks 42 of 86 (−0.8 °C vs normal).

194019832025

2025 · 29.6 °C · −0.8 °C vs normal · rank 42 of 86

Warmest years

1199231.7 °C
2201631.7 °C
3201531.6 °C
4201031.5 °C
5201331.5 °C

Coldest years

1194327.3 °C
2194627.4 °C
3194527.5 °C
4196627.9 °C
5195327.9 °C

All 86 years in a table

Year	Mean temperature	Daytime highs	Night lows	Precipitation	Hot days (30 °C+)	Rainy days
2025	29.6 °C	33.1 °C	27.0 °C	222 mm	30 days	26 days
2024	30.7 °C	34.6 °C	27.7 °C	176 mm	31 days	19 days
2023	31.5 °C	35.8 °C	28.5 °C	76 mm	31 days	11 days
2022	29.0 °C	32.7 °C	26.6 °C	213 mm	27 days	23 days
2021	30.3 °C	34.2 °C	27.4 °C	104 mm	31 days	17 days
2020	31.3 °C	35.5 °C	28.5 °C	88 mm	31 days	9 days
2019	31.2 °C	35.7 °C	28.2 °C	90 mm	31 days	18 days
2018	29.4 °C	33.0 °C	26.8 °C	122 mm	31 days	24 days
2017	29.8 °C	33.6 °C	27.3 °C	263 mm	29 days	25 days
2016	31.7 °C	36.0 °C	28.7 °C	73 mm	31 days	13 days
2015	31.6 °C	36.4 °C	28.6 °C	51 mm	31 days	17 days
2014	31.0 °C	35.5 °C	28.0 °C	107 mm	31 days	21 days
2013	31.5 °C	36.2 °C	28.5 °C	74 mm	31 days	18 days
2012	30.4 °C	34.8 °C	27.7 °C	105 mm	31 days	23 days
2011	29.8 °C	34.0 °C	27.0 °C	148 mm	30 days	22 days
2010	31.5 °C	35.9 °C	28.8 °C	84 mm	31 days	19 days
2009	29.2 °C	33.1 °C	26.6 °C	195 mm	30 days	25 days
2008	29.3 °C	33.3 °C	26.7 °C	188 mm	31 days	22 days
2007	29.2 °C	32.8 °C	26.8 °C	203 mm	29 days	21 days
2006	29.9 °C	33.6 °C	27.3 °C	174 mm	31 days	20 days
2005	31.2 °C	35.6 °C	28.5 °C	115 mm	31 days	18 days
2004	29.7 °C	33.6 °C	27.1 °C	171 mm	29 days	24 days
2003	30.8 °C	35.4 °C	27.6 °C	105 mm	31 days	18 days
2002	29.7 °C	33.5 °C	27.3 °C	155 mm	29 days	26 days
2001	29.1 °C	32.7 °C	26.7 °C	184 mm	28 days	24 days
2000	30.0 °C	34.2 °C	27.2 °C	141 mm	31 days	25 days
1999	28.7 °C	32.4 °C	26.3 °C	178 mm	31 days	27 days
1998	31.2 °C	35.6 °C	28.4 °C	123 mm	31 days	16 days
1997	31.1 °C	35.8 °C	28.0 °C	84 mm	31 days	13 days
1996	29.4 °C	33.7 °C	26.5 °C	184 mm	31 days	27 days
1995	30.2 °C	34.3 °C	27.2 °C	147 mm	31 days	18 days
1994	30.1 °C	34.2 °C	27.1 °C	170 mm	28 days	21 days
1993	30.7 °C	35.1 °C	27.6 °C	71 mm	31 days	17 days
1992	31.7 °C	36.6 °C	28.3 °C	49 mm	31 days	15 days
1991	30.6 °C	34.9 °C	27.5 °C	66 mm	30 days	18 days
1990	30.4 °C	34.7 °C	27.5 °C	112 mm	31 days	20 days
1989	30.2 °C	34.6 °C	27.5 °C	75 mm	31 days	19 days
1988	29.4 °C	32.8 °C	26.8 °C	158 mm	31 days	27 days
1987	30.6 °C	34.7 °C	27.6 °C	50 mm	31 days	18 days
1986	29.3 °C	33.0 °C	26.5 °C	180 mm	28 days	22 days
1985	28.7 °C	32.1 °C	26.0 °C	226 mm	28 days	22 days
1984	29.7 °C	33.6 °C	26.8 °C	64 mm	31 days	17 days
1983	30.8 °C	34.9 °C	27.9 °C	91 mm	31 days	15 days
1982	30.1 °C	34.2 °C	27.2 °C	127 mm	30 days	18 days
1981	29.4 °C	33.5 °C	26.8 °C	105 mm	30 days	21 days
1980	31.0 °C	35.6 °C	28.1 °C	144 mm	30 days	15 days
1979	30.4 °C	34.9 °C	27.4 °C	127 mm	31 days	19 days
1978	29.4 °C	33.2 °C	26.7 °C	266 mm	29 days	29 days
1977	29.8 °C	34.2 °C	26.6 °C	74 mm	31 days	19 days
1976	28.2 °C	31.7 °C	25.7 °C	229 mm	28 days	29 days
1975	28.7 °C	32.7 °C	25.9 °C	182 mm	30 days	26 days
1974	28.5 °C	32.3 °C	25.7 °C	195 mm	26 days	25 days
1973	29.6 °C	34.0 °C	26.5 °C	94 mm	31 days	19 days
1972	31.1 °C	36.5 °C	27.0 °C	73 mm	31 days	9 days
1971	28.9 °C	33.1 °C	25.9 °C	155 mm	30 days	24 days
1970	29.6 °C	34.0 °C	26.4 °C	109 mm	30 days	27 days
1969	30.4 °C	34.7 °C	27.2 °C	104 mm	30 days	21 days
1968	29.2 °C	33.2 °C	26.3 °C	148 mm	27 days	17 days
1967	29.0 °C	33.3 °C	26.1 °C	150 mm	31 days	26 days
1966	27.9 °C	31.3 °C	25.7 °C	328 mm	22 days	30 days
1965	28.9 °C	33.2 °C	26.0 °C	173 mm	31 days	25 days
1964	28.3 °C	32.1 °C	25.5 °C	265 mm	29 days	26 days
1963	30.4 °C	34.8 °C	27.0 °C	68 mm	31 days	14 days
1962	29.5 °C	33.8 °C	26.4 °C	143 mm	31 days	21 days
1961	28.5 °C	32.1 °C	26.0 °C	243 mm	29 days	23 days
1960	29.6 °C	33.5 °C	26.8 °C	140 mm	30 days	22 days
1959	29.5 °C	33.1 °C	26.5 °C	140 mm	30 days	21 days
1958	30.7 °C	35.3 °C	27.4 °C	74 mm	31 days	7 days
1957	31.0 °C	35.9 °C	27.6 °C	16 mm	31 days	5 days
1956	28.5 °C	32.5 °C	25.6 °C	125 mm	31 days	24 days
1955	28.9 °C	33.1 °C	25.9 °C	148 mm	30 days	24 days
1954	28.5 °C	32.1 °C	25.7 °C	120 mm	27 days	22 days
1953	27.9 °C	32.1 °C	24.9 °C	192 mm	29 days	28 days
1952	29.1 °C	33.1 °C	26.3 °C	132 mm	29 days	20 days
1951	29.7 °C	34.4 °C	26.6 °C	30 mm	31 days	9 days
1950	29.0 °C	33.0 °C	26.3 °C	67 mm	31 days	16 days
1949	29.4 °C	34.1 °C	26.2 °C	46 mm	31 days	9 days
1948	28.9 °C	33.0 °C	25.8 °C	86 mm	31 days	16 days
1947	29.3 °C	33.3 °C	26.3 °C	106 mm	31 days	15 days
1946	27.4 °C	31.1 °C	24.7 °C	206 mm	26 days	30 days
1945	27.5 °C	31.1 °C	24.5 °C	224 mm	26 days	28 days
1944	29.6 °C	34.2 °C	26.4 °C	24 mm	31 days	8 days
1943	27.3 °C	30.6 °C	24.6 °C	317 mm	21 days	29 days
1942	27.9 °C	31.4 °C	25.2 °C	164 mm	29 days	25 days
1941	28.3 °C	31.7 °C	25.7 °C	247 mm	20 days	23 days
1940	28.0 °C	31.3 °C	25.5 °C	179 mm	23 days	24 days

May records

Hottest day

40.1 °C

May 2, 1967 estimate

Nearby station: 40.8 °C on May 22, 1983 measured

Coldest night

23.2 °C

May 3, 2022 estimate

Nearby station: 20.0 °C on May 5, 1975 measured

Wettest day

55 mm

May 9, 1961 estimate

The weather on your birthday in Bangkok

Any day since 1940: high, low, rain, snow, and how warm it was compared with the same date in every other year.

Questions & answers

How warm is Bangkok in May?

Highs average 34.6 °C and lows 27.6 °C. A typical May brings 30 hot days (30 °C or more) and 0 frost days.

Does it rain a lot in Bangkok in May?

About 130 mm falls in May, over some 20 days with at least 1 mm. The wettest May was 1966 (328 mm), the driest 1957 (16 mm).

What was the warmest May in Bangkok?

1992, with a mean temperature of 31.7 °C. The coldest was 1943 (27.3 °C). The last one, 2025, ranks 42 of 86.