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Trashigang, Bhutan climate

Cwa Monsoon-influenced humid subtropical

Trashigang has a mildly seasonal tropical climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is August with an average daily high near 33°C, while the coldest is January averaging around 11°C at night. Precipitation totals about 1852 mm a year and is strongly seasonal — June alone averages 303 mm while December barely receives 6 mm.

☀️ Summers

Hot

Highs near 33°C in August.

About 103 days a year above 32 °C

❄️ Winters

Mild

Lows near 11°C in January.

🌧️ Rain

Very wet

About 1852 mm of rain a year.

Wettest in June

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.4 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Trashigang climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	24	27	30	31	32	32	33	33	32	31	28	25
Avg temp (°C)	17	20	24	26	27	29	29	29	29	27	23	19
Avg low (°C)	11	13	16	20	23	25	26	26	25	22	17	13
Precipitation (mm)	19	41	108	229	251	303	265	271	167	180	12	6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	24	27	30	31	32	32
Avg temp (°C)	17	20	24	26	27	29
Avg low (°C)	11	13	16	20	23	25
Precipitation (mm)	19	41	108	229	251	303

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	33	33	32	31	28	25
Avg temp (°C)	29	29	29	27	23	19
Avg low (°C)	26	26	25	22	17	13
Precipitation (mm)	265	271	167	180	12	6

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	2	3	4	13	17	18	20	16	12	6	2	1
Days with high ≥ 32°C (days)	—	0.4	8	10	12	14	16	18	15	8	0.5	0.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	2	3	4	13	17	18
Days with high ≥ 32°C (days)	—	0.4	8	10	12	14

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	20	16	12	6	2	1
Days with high ≥ 32°C (days)	16	18	15	8	0.5	0.1

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	35	41	53	70	78	83	86	85	76	48	32	29
Clear days (≤ 30% cloud)	15	12	7	3	2	0.6	0.3	0.4	2	11	18	19
Partly cloudy days (30–70%)	13	12	15	9	8	6	5	5	8	11	9	10
Cloudy days (≥ 70%)	3	4	9	18	22	24	26	26	20	9	4	2
Relative humidity (%)	74	66	58	64	73	79	83	84	85	82	81	78
Wind speed (m/s)	0.5	0.6	0.7	0.7	0.6	0.5	0.5	0.5	0.4	0.4	0.5	0.5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	35	41	53	70	78	83
Clear days (≤ 30% cloud)	15	12	7	3	2	0.6
Partly cloudy days (30–70%)	13	12	15	9	8	6
Cloudy days (≥ 70%)	3	4	9	18	22	24
Relative humidity (%)	74	66	58	64	73	79
Wind speed (m/s)	0.5	0.6	0.7	0.7	0.6	0.5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	86	85	76	48	32	29
Clear days (≤ 30% cloud)	0.3	0.4	2	11	18	19
Partly cloudy days (30–70%)	5	5	8	11	9	10
Cloudy days (≥ 70%)	26	26	20	9	4	2
Relative humidity (%)	83	84	85	82	81	78
Wind speed (m/s)	0.5	0.5	0.4	0.4	0.5	0.5

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 23 years of daily observations at Gauhati, a weather station, about 137 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →