Horana South Weather in May
What's the weather like in Horana South (Western) in May 2025?
The climate in Horana South during May can be summarized as hot, humid and very wet.
May is in the spring in Horana South and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 25°C (76°F) is normal.
| Daytime temperature | 30.5°C 86.8°F |
|---|---|
| Nightly temperature | 24.6°C 76.2°F |
| Average temperature | 27.5°C 81.5°F |
| Daily sunshine | 6.6 hrs |
| Avg rainfall | 395 mm 15.6 ins |
| Rainy days | 14 days |
| Sea temperature | 29.4°C 84.9°F |
| Humidity | 81% |
| Windspeed | 11.2kph 7 mph |
On average May is the wettest month of the year in Horana South with around 395mm 15.6 inches of rain making it a very 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 6.6 hours of sunshine per day.
May temperatures in Horana South
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 Horana South in May 2024.
Other monthly averages
Horana South weather stats
| Hottest month: | April | 31.2°C 88.2°F |
|---|---|---|
| Driest month: | January | 77mm 3ins |
| Sunniest month: | March | 9.1hrs |
| Coldest month: | January | 30°C 86°F |
| Wettest month: | May | 395mm 15.6ins |
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