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Chumphon, Thailand climate
Am Tropical monsoon
Chumphon has a remarkably steady tropical climate (Tropical monsoon, Köppen Am). The hottest month is April with an average daily high near 34°C, while the coldest is December averaging around 22°C at night. Precipitation totals about 1832 mm a year and is strongly seasonal — November alone averages 273 mm while February barely receives 37 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 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)Chumphon climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 32 | 33 | 34 | 34 | 33 | 32 | 32 | 32 | 31 | 31 | 30 |
| Avg temp (°C) | 26 | 27 | 28 | 30 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 26 |
| Avg low (°C) | 22 | 22 | 23 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 23 | 22 |
| Precipitation (mm) | 69 | 37 | 93 | 70 | 162 | 171 | 193 | 195 | 202 | 242 | 273 | 122 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 32 | 33 | 34 | 34 | 33 |
| Avg temp (°C) | 26 | 27 | 28 | 30 | 29 | 29 |
| Avg low (°C) | 22 | 22 | 23 | 25 | 25 | 25 |
| Precipitation (mm) | 69 | 37 | 93 | 70 | 162 | 171 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 31 | 31 | 30 |
| Avg temp (°C) | 28 | 28 | 28 | 27 | 27 | 26 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 23 | 22 |
| Precipitation (mm) | 193 | 195 | 202 | 242 | 273 | 122 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 8 | 4 | 6 | 7 | 16 | 17 | 19 | 18 | 19 | 19 | 14 | 9 |
| Days with high ≥ 32°C (days) | 6 | 13 | 24 | 24 | 23 | 18 | 15 | 15 | 13 | 12 | 7 | 4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 8 | 4 | 6 | 7 | 16 | 17 |
| Days with high ≥ 32°C (days) | 6 | 13 | 24 | 24 | 23 | 18 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 19 | 18 | 19 | 19 | 14 | 9 |
| Days with high ≥ 32°C (days) | 15 | 15 | 13 | 12 | 7 | 4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 54 | 45 | 46 | 58 | 79 | 85 | 86 | 87 | 86 | 82 | 74 | 64 |
| Relative humidity (%) | 77 | 75 | 74 | 73 | 78 | 82 | 83 | 84 | 84 | 83 | 81 | 79 |
| Wind speed (m/s) | 3.7 | 3.3 | 3.1 | 2.8 | 3.5 | 4.4 | 4.7 | 4.9 | 4.3 | 3.3 | 4.0 | 4.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 54 | 45 | 46 | 58 | 79 | 85 |
| Relative humidity (%) | 77 | 75 | 74 | 73 | 78 | 82 |
| Wind speed (m/s) | 3.7 | 3.3 | 3.1 | 2.8 | 3.5 | 4.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 86 | 87 | 86 | 82 | 74 | 64 |
| Relative humidity (%) | 83 | 84 | 84 | 83 | 81 | 79 |
| Wind speed (m/s) | 4.7 | 4.9 | 4.3 | 3.3 | 4.0 | 4.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Chumphon, a weather station, about 1 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.