Om Koi Weather in May
What's the weather like in Om Koi (Chiang Mai) in May 2025?
The climate in Om Koi during May can be summarized as hot, humid and very wet.
May is in the spring in Om Koi and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 20°C (68°F) is normal.
| Daytime temperature | 30.5°C 86.8°F |
|---|---|
| Nightly temperature | 20°C 67.9°F |
| Average temperature | 25.2°C 77.4°F |
| Daily sunshine | 7.3 hrs |
| Avg rainfall | 202 mm 7.9 ins |
| Rainy days | 17 days |
| Sea temperature | 29.6°C 85.3°F |
| Humidity | 71% |
| Windspeed | 4.7kph 3 mph |
On average May is the 5th wettest month of the year in Om Koi with around 202mm 7.9 inches of rain making it a very wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.3 hours of sunshine per day.
May temperatures in Om Koi
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 Om Koi in May 2025.
Other monthly averages
Om Koi weather stats
| Hottest month: | April | 32.9°C 91.2°F |
|---|---|---|
| Driest month: | February | 7mm 0.3ins |
| Sunniest month: | February | 10.6hrs |
| Coldest month: | January | 26.8°C 80.2°F |
| Wettest month: | August | 275mm 10.8ins |
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