The climate in Istmina during May can be summarized as hot, humid and very wet.
May is in the spring in Istmina and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 22°C (72°F) is normal.
Daytime temperature | 31.2°C 88.2°F |
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Nightly temperature | 22.4°C 72.3°F |
Average temperature | 26.8°C 80.2°F |
Daily sunshine | 3.3 hrs |
Avg rainfall | 713 mm 28.1 ins |
Rainy days | 20 days |
Sea temperature | 28.1°C 82.6°F |
Humidity | 88% |
Windspeed | 10.1kph 6 mph |
On average May is the 2nd wettest month of the year in Istmina with around 713mm 28.1 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.3 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 Istmina in May 2025.
Hottest month: | March | 31.3°C 88.3°F |
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Driest month: | February | 515mm 20.3ins |
Sunniest month: | July | 4hrs |
Coldest month: | November | 30.1°C 86.2°F |
Wettest month: | October | 747mm 29.4ins |