The climate in Phayao during April can be summarized as very hot and a little damp.
April is in the spring in Phayao and is typically the warmest month of the year. Daytime maximum temperatures average around a warm 36°C (96°F), whilst at night 22°C (72°F) is normal.
| Daytime temperature | 35.8°C 96.4°F | 
|---|---|
| Nightly temperature | 22.2°C 72°F | 
| Average temperature | 29°C 84.2°F | 
| Daily sunshine | 9.3 hrs | 
| Avg rainfall | 85 mm 3.4 ins | 
| Rainy days | 9 days | 
| Sea temperature | 26.7°C 80.1°F | 
| Humidity | 58% | 
| Windspeed | 4kph 2 mph | 
On average April is the 6th driest month of the year in Phayao with around 85mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.3 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 Phayao in April 2025.
| Hottest month: | April | 35.5°C 95.9°F | 
|---|---|---|
| Driest month: | February | 9mm 0.4ins | 
| Sunniest month: | February | 10.2hrs | 
| Coldest month: | December | 26.5°C 79.7°F | 
| Wettest month: | August | 314mm 12.4ins |