Home › Cities › Thailand › Nakhon Ratchasima
Nakhon Ratchasima, Thailand climate
Aw Tropical savanna (dry winter)
Nakhon Ratchasima has a mildly seasonal 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 19°C at night. Precipitation totals about 1264 mm a year and is strongly seasonal — September alone averages 281 mm while December barely receives 9 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)Nakhon Ratchasima climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 33 | 36 | 37 | 35 | 35 | 34 | 33 | 32 | 31 | 31 | 30 |
| Avg temp (°C) | 25 | 27 | 30 | 31 | 30 | 30 | 30 | 29 | 28 | 27 | 26 | 24 |
| Avg low (°C) | 19 | 21 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 23 | 21 | 19 |
| Precipitation (mm) | 63 | 34 | 35 | 68 | 165 | 144 | 133 | 189 | 281 | 120 | 23 | 9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 33 | 36 | 37 | 35 | 35 |
| Avg temp (°C) | 25 | 27 | 30 | 31 | 30 | 30 |
| Avg low (°C) | 19 | 21 | 24 | 25 | 25 | 25 |
| Precipitation (mm) | 63 | 34 | 35 | 68 | 165 | 144 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 33 | 32 | 31 | 31 | 30 |
| Avg temp (°C) | 30 | 29 | 28 | 27 | 26 | 24 |
| Avg low (°C) | 25 | 25 | 24 | 23 | 21 | 19 |
| Precipitation (mm) | 133 | 189 | 281 | 120 | 23 | 9 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 5 | 8 | 13 | 12 | 14 | 16 | 18 | 11 | 3 | 1 |
| Days with high ≥ 32°C (days) | 11 | 19 | 26 | 26 | 27 | 27 | 26 | 24 | 18 | 12 | 9 | 7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 5 | 8 | 13 | 12 |
| Days with high ≥ 32°C (days) | 11 | 19 | 26 | 26 | 27 | 27 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 16 | 18 | 11 | 3 | 1 |
| Days with high ≥ 32°C (days) | 26 | 24 | 18 | 12 | 9 | 7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 39 | 53 | 66 | 80 | 87 | 88 | 91 | 88 | 71 | 52 | 42 |
| Relative humidity (%) | 62 | 56 | 57 | 62 | 74 | 79 | 80 | 83 | 86 | 85 | 79 | 70 |
| Wind speed (km/h) | 7.2 | 7.3 | 7.8 | 7.2 | 7.1 | 8.7 | 9.4 | 9.0 | 6.3 | 6.6 | 7.8 | 8.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 39 | 53 | 66 | 80 | 87 |
| Relative humidity (%) | 62 | 56 | 57 | 62 | 74 | 79 |
| Wind speed (km/h) | 7.2 | 7.3 | 7.8 | 7.2 | 7.1 | 8.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 88 | 91 | 88 | 71 | 52 | 42 |
| Relative humidity (%) | 80 | 83 | 86 | 85 | 79 | 70 |
| Wind speed (km/h) | 9.4 | 9.0 | 6.3 | 6.6 | 7.8 | 8.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Nakhon Ratchasima, a weather station, about 2 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.