The climate in Cha-am during March can be summarized as hot, humid and reasonably dry.
March is in the spring in Cha-am and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 23°C (74°F) is normal.
| Daytime temperature | 31.9°C 89.3°F | 
|---|---|
| Nightly temperature | 23.4°C 74°F | 
| Average temperature | 27.6°C 81.7°F | 
| Daily sunshine | 9.2 hrs | 
| Avg rainfall | 31 mm 1.2 ins | 
| Rainy days | 3 days | 
| Sea temperature | 29.1°C 84.4°F | 
| Humidity | 73% | 
| Windspeed | 9.4kph 6 mph | 
On average March is the 4th driest month of the year in Cha-am with around 31mm 1.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 hours of sunshine per day.
				
						
						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 March 2025.
| 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 |