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Suphan Buri, Thailand climate
Aw Tropical savanna (dry winter)
Suphan Buri has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 37°C, while the coldest is December averaging around 21°C at night. Precipitation totals about 998 mm a year and is strongly seasonal — September alone averages 227 mm while January barely receives 4 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)Suphan Buri climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 34 | 36 | 37 | 36 | 35 | 34 | 34 | 34 | 33 | 32 | 31 |
| Avg temp (°C) | 27 | 28 | 30 | 32 | 31 | 30 | 30 | 30 | 29 | 29 | 28 | 26 |
| Avg low (°C) | 21 | 23 | 24 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 23 | 21 |
| Precipitation (mm) | 4 | 5 | 8 | 56 | 110 | 109 | 108 | 115 | 227 | 194 | 52 | 9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 34 | 36 | 37 | 36 | 35 |
| Avg temp (°C) | 27 | 28 | 30 | 32 | 31 | 30 |
| Avg low (°C) | 21 | 23 | 24 | 26 | 26 | 26 |
| Precipitation (mm) | 4 | 5 | 8 | 56 | 110 | 109 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 34 | 34 | 33 | 32 | 31 |
| Avg temp (°C) | 30 | 30 | 29 | 29 | 28 | 26 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 23 | 21 |
| Precipitation (mm) | 108 | 115 | 227 | 194 | 52 | 9 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 1 | 0.8 | 3 | 5 | 12 | 12 | 14 | 15 | 18 | 14 | 4 | 1 |
| Days with high ≥ 32°C (days) | 18 | 22 | 26 | 26 | 27 | 27 | 25 | 26 | 24 | 21 | 16 | 13 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 1 | 0.8 | 3 | 5 | 12 | 12 |
| Days with high ≥ 32°C (days) | 18 | 22 | 26 | 26 | 27 | 27 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 15 | 18 | 14 | 4 | 1 |
| Days with high ≥ 32°C (days) | 25 | 26 | 24 | 21 | 16 | 13 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 36 | 37 | 48 | 59 | 80 | 88 | 90 | 92 | 88 | 72 | 49 | 38 |
| Relative humidity (%) | 58 | 53 | 53 | 58 | 70 | 76 | 79 | 81 | 84 | 85 | 79 | 66 |
| Wind speed (m/s) | 1.7 | 1.8 | 2.1 | 2.0 | 1.9 | 2.1 | 2.3 | 2.2 | 1.6 | 1.5 | 1.8 | 2.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 36 | 37 | 48 | 59 | 80 | 88 |
| Relative humidity (%) | 58 | 53 | 53 | 58 | 70 | 76 |
| Wind speed (m/s) | 1.7 | 1.8 | 2.1 | 2.0 | 1.9 | 2.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 90 | 92 | 88 | 72 | 49 | 38 |
| Relative humidity (%) | 79 | 81 | 84 | 85 | 79 | 66 |
| Wind speed (m/s) | 2.3 | 2.2 | 1.6 | 1.5 | 1.8 | 2.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Suphan Buri, 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.