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Prachuap Khiri Khan, Thailand climate
Aw Tropical savanna (dry winter)
Prachuap Khiri Khan has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is May with an average daily high near 94°F, while the coldest is January averaging around 70°F at night. Precipitation totals about 49 inches a year and is strongly seasonal — October alone averages 9.7 inches while February barely receives 0.72 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)Prachuap Khiri Khan climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 90 | 92 | 94 | 94 | 92 | 91 | 90 | 91 | 89 | 89 | 88 |
| Avg temp (°F) | 79 | 81 | 83 | 86 | 86 | 85 | 84 | 84 | 84 | 82 | 81 | 79 |
| Avg low (°F) | 70 | 71 | 74 | 77 | 78 | 78 | 77 | 77 | 77 | 75 | 74 | 71 |
| Precipitation (in) | 1.8 | 0.7 | 2.4 | 2.3 | 4.6 | 2.9 | 5.1 | 6.2 | 3.7 | 9.7 | 7.2 | 1.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 90 | 92 | 94 | 94 | 92 |
| Avg temp (°F) | 79 | 81 | 83 | 86 | 86 | 85 |
| Avg low (°F) | 70 | 71 | 74 | 77 | 78 | 78 |
| Precipitation (in) | 1.8 | 0.7 | 2.4 | 2.3 | 4.6 | 2.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 91 | 90 | 91 | 89 | 89 | 88 |
| Avg temp (°F) | 84 | 84 | 84 | 82 | 81 | 79 |
| Avg low (°F) | 77 | 77 | 77 | 75 | 74 | 71 |
| Precipitation (in) | 5.1 | 6.2 | 3.7 | 9.7 | 7.2 | 1.9 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 3 | 5 | 5 | 12 | 14 | 16 | 16 | 13 | 16 | 8 | 3 |
| Days with high ≥ 90°F (days) | 10 | 16 | 23 | 26 | 25 | 22 | 19 | 18 | 20 | 14 | 12 | 8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 3 | 5 | 5 | 12 | 14 |
| Days with high ≥ 90°F (days) | 10 | 16 | 23 | 26 | 25 | 22 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 16 | 16 | 13 | 16 | 8 | 3 |
| Days with high ≥ 90°F (days) | 19 | 18 | 20 | 14 | 12 | 8 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 45 | 50 | 65 | 85 | 91 | 92 | 93 | 91 | 83 | 68 | 58 |
| Relative humidity (%) | 76 | 76 | 77 | 76 | 80 | 82 | 83 | 83 | 84 | 83 | 81 | 77 |
| Wind speed (mph) | 6.0 | 6.0 | 6.1 | 6.0 | 6.8 | 8.1 | 8.6 | 8.6 | 7.0 | 6.0 | 7.6 | 8.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 45 | 50 | 65 | 85 | 91 |
| Relative humidity (%) | 76 | 76 | 77 | 76 | 80 | 82 |
| Wind speed (mph) | 6.0 | 6.0 | 6.1 | 6.0 | 6.8 | 8.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 92 | 93 | 91 | 83 | 68 | 58 |
| Relative humidity (%) | 83 | 83 | 84 | 83 | 81 | 77 |
| Wind speed (mph) | 8.6 | 8.6 | 7.0 | 6.0 | 7.6 | 8.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Prachuap Khiri Khan, a weather station, about 3 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.