Phayao Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Phayao.
Climate overview of Phayao
Phayao, Phayao Province, Thailand, has a moderate seasonal temperature range, with April reaching 37°C (99°F) and December cooling to 29°C (84°F).
With around 1508 mm (59 in) of annual rainfall, Phayao has a notably wet climate. However, this rainfall is not evenly distributed, the city has distinct dry (November to March) and wet (May to September) seasons. The wettest month is August.
Phayao Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Phayao - and find the best time to visit.
Monthly Temperature in Phayao
The climate in Phayao experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures reach a very hot 37°C (99°F) in April. In December, the coolest month of the year, temperatures drop to a comfortable 29°C (84°F).
At night, temperatures range from around 25°C (77°F) in April to 16°C (61°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Phayao
Phayao is known for its substantial rainfall, with annual precipitation reaching 1508 mm (59 in). Phayao can be quite wet during August, receiving approximately 291 mm (11 in) of precipitation over 21 rainy days.
In contrast, during the driest month (February), you will experience much drier conditions, with 9.4 mm (0.4 in) of precipitation spread across 2 rainy days. For more details, please visit our Phayao Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Phayao
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: December
- Warmest weather: March and April
- Fewest rainy days: January, February, March and December
- Wettest months: May, June, July, August and September, when rainfall is highest.
- Seasonal pattern: Distinct dry (November to March) and wet (May to September) seasons
Frequently asked questions about the climate in Phayao
What is the best time to visit Phayao?
December typically offers the most optimal weather in Phayao. In contrast, March, April, May, June, July, August and September tend to have less optimal conditions. Phayao has distinct dry (November to March) and wet (May to September) seasons.
What temperatures can I expect in Phayao?
Daytime highs range from 29°C (84°F) in December to 37°C (99°F) in April. Nighttime lows range from 16°C (61°F) to 25°C (77°F).
How much rain does Phayao get?
Annual rainfall is around 1508 mm (59 in). August is the wettest month with 291 mm (11 in), while February is the driest with 9.4 mm (0.4 in).
Phayao 3-Day Forecast
Phayao on the map
Phayao is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Bangkok
34°C (93°F) Jomtien Beach
32°C (90°F) Hua Hin32°C (90°F) Chiang Mai32°C (90°F) Koh Samui30°C (86°F) Ao Nang Beach30°C (86°F) Ko Lanta30°C (86°F) Patong Beach30°C (86°F) 
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