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Tsimasham, Bhutan climate
Cwb Subtropical highland (dry winter)
Tsimasham has a mildly seasonal mild-temperate climate (Subtropical highland (dry winter), Köppen Cwb). The hottest month is July with an average daily high near 24°C, while the coldest is January averaging around 3°C at night. Precipitation totals about 3673 mm a year and is strongly seasonal — July alone averages 1016 mm while December barely receives 23 mm. Light snow accumulates each winter (32 cm of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Tsimasham climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 14 | 16 | 20 | 22 | 24 | 24 | 24 | 24 | 23 | 21 | 18 | 15 |
| Avg temp (°C) | 9 | 10 | 13 | 17 | 19 | 21 | 21 | 21 | 19 | 17 | 13 | 10 |
| Avg low (°C) | 3 | 5 | 7 | 11 | 14 | 17 | 18 | 17 | 16 | 13 | 9 | 6 |
| Precipitation (mm) | 40 | 63 | 112 | 152 | 276 | 682 | 1016 | 703 | 441 | 135 | 30 | 23 |
| Snowfall (cm) | 12 | 6 | 3 | 3 | 5 | — | — | — | — | 1 | 0 | 2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 14 | 16 | 20 | 22 | 24 | 24 |
| Avg temp (°C) | 9 | 10 | 13 | 17 | 19 | 21 |
| Avg low (°C) | 3 | 5 | 7 | 11 | 14 | 17 |
| Precipitation (mm) | 40 | 63 | 112 | 152 | 276 | 682 |
| Snowfall (cm) | 12 | 6 | 3 | 3 | 5 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 24 | 23 | 21 | 18 | 15 |
| Avg temp (°C) | 21 | 21 | 19 | 17 | 13 | 10 |
| Avg low (°C) | 18 | 17 | 16 | 13 | 9 | 6 |
| Precipitation (mm) | 1016 | 703 | 441 | 135 | 30 | 23 |
| Snowfall (cm) | — | — | — | 1 | 0 | 2 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with low ≤ 0°C (days) | 0.3 | 0.2 | — | — | — | — | — | — | — | — | — | 0.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with low ≤ 0°C (days) | 0.3 | 0.2 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 63 | 69 | 75 | 78 | 80 | 83 | 84 | 78 | 63 | 54 | 52 |
| Relative humidity (%) | 60 | 55 | 51 | 58 | 72 | 83 | 89 | 89 | 88 | 81 | 73 | 65 |
| Wind speed (m/s) | 0.5 | 0.7 | 0.8 | 0.7 | 0.6 | 0.6 | 0.7 | 0.6 | 0.5 | 0.4 | 0.4 | 0.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 63 | 69 | 75 | 78 | 80 |
| Relative humidity (%) | 60 | 55 | 51 | 58 | 72 | 83 |
| Wind speed (m/s) | 0.5 | 0.7 | 0.8 | 0.7 | 0.6 | 0.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 83 | 84 | 78 | 63 | 54 | 52 |
| Relative humidity (%) | 89 | 89 | 88 | 81 | 73 | 65 |
| Wind speed (m/s) | 0.7 | 0.6 | 0.5 | 0.4 | 0.4 | 0.4 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
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.