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Trat, Thailand climate
Am Tropical monsoon
Trat has a remarkably steady tropical climate (Tropical monsoon, Köppen Am). The hottest month is April with an average daily high near 93°F, while the coldest is December averaging around 71°F at night. Precipitation totals about 117 inches a year and is strongly seasonal — September alone averages 20.7 inches while December barely receives 0.92 inches.
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)Trat climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 91 | 91 | 92 | 93 | 92 | 90 | 89 | 89 | 89 | 90 | 91 | 90 |
| Avg temp (°F) | 81 | 82 | 84 | 85 | 85 | 84 | 83 | 83 | 82 | 83 | 82 | 81 |
| Avg low (°F) | 71 | 73 | 76 | 77 | 77 | 77 | 77 | 77 | 76 | 75 | 74 | 71 |
| Precipitation (in) | 2.1 | 2.0 | 3.9 | 3.7 | 15.1 | 18.2 | 18.9 | 17.9 | 20.7 | 11.5 | 1.7 | 0.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 91 | 91 | 92 | 93 | 92 | 90 |
| Avg temp (°F) | 81 | 82 | 84 | 85 | 85 | 84 |
| Avg low (°F) | 71 | 73 | 76 | 77 | 77 | 77 |
| Precipitation (in) | 2.1 | 2.0 | 3.9 | 3.7 | 15.1 | 18.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 89 | 89 | 90 | 91 | 90 |
| Avg temp (°F) | 83 | 83 | 82 | 83 | 82 | 81 |
| Avg low (°F) | 77 | 77 | 76 | 75 | 74 | 71 |
| Precipitation (in) | 18.9 | 17.9 | 20.7 | 11.5 | 1.7 | 0.9 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 4 | 7 | 10 | 20 | 23 | 23 | 23 | 24 | 19 | 6 | 2 |
| Days with high ≥ 90°F (days) | 21 | 21 | 26 | 27 | 23 | 18 | 14 | 12 | 12 | 19 | 19 | 17 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 4 | 7 | 10 | 20 | 23 |
| Days with high ≥ 90°F (days) | 21 | 21 | 26 | 27 | 23 | 18 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 23 | 23 | 24 | 19 | 6 | 2 |
| Days with high ≥ 90°F (days) | 14 | 12 | 12 | 19 | 19 | 17 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 47 | 49 | 60 | 72 | 86 | 90 | 91 | 93 | 92 | 81 | 62 | 54 |
| Relative humidity (%) | 74 | 76 | 78 | 78 | 82 | 84 | 85 | 86 | 86 | 84 | 81 | 77 |
| Wind speed (mph) | 5.2 | 5.5 | 5.9 | 5.6 | 6.3 | 7.4 | 8.0 | 8.0 | 6.5 | 5.1 | 5.9 | 6.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 47 | 49 | 60 | 72 | 86 | 90 |
| Relative humidity (%) | 74 | 76 | 78 | 78 | 82 | 84 |
| Wind speed (mph) | 5.2 | 5.5 | 5.9 | 5.6 | 6.3 | 7.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 91 | 93 | 92 | 81 | 62 | 54 |
| Relative humidity (%) | 85 | 86 | 86 | 84 | 81 | 77 |
| Wind speed (mph) | 8.0 | 8.0 | 6.5 | 5.1 | 5.9 | 6.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Chanthaburi, a weather station, about 59 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.