Cha-am Weather in May
What's the weather like in Cha-am (Phetchaburi) in May 2026?
The climate in Cha-am during May can be summarized as very hot, humid and wet.
May is in the spring in Cha-am and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 25°C (77°F) is normal.
| Daytime temperature | 32.9°C 91.1°F |
|---|---|
| Nightly temperature | 25°C 76.9°F |
| Average temperature | 28.9°C 84°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 139 mm 5.5 ins |
| Rainy days | 14 days |
| Sea temperature | 30.3°C 86.5°F |
| Humidity | 75% |
| Windspeed | 7.6kph 5 mph |
On average May is the 4th wettest month of the year in Cha-am with around 139mm 5.5 inches of rain making it a wet time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
May temperatures in Cha-am
May rainfall
May hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cha-am in May 2025.
Other monthly averages
Cha-am weather stats
| Hottest month: | April | 32.9°C 91.2°F |
|---|---|---|
| Driest month: | January | 12mm 0.5ins |
| Sunniest month: | January | 9.4hrs |
| Coldest month: | January | 29.2°C 84.6°F |
| Wettest month: | October | 223mm 8.8ins |
© Google