Koumac Weather in May
What's the weather like in Koumac (Province Nord) in May 2025?
The climate in Koumac during May can be summarized as warm, humid and reasonably dry.
May is in the fall / autumn in Koumac and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 19°C (66°F) is normal.
| Daytime temperature | 26.2°C 79.2°F |
|---|---|
| Nightly temperature | 18.8°C 65.8°F |
| Average temperature | 22.5°C 72.5°F |
| Daily sunshine | 6.7 hrs |
| Avg rainfall | 72 mm 2.8 ins |
| Rainy days | 8 days |
| Sea temperature | 25.9°C 78.6°F |
| Humidity | 78% |
| Windspeed | 11.2kph 7 mph |
On average May is the 5th driest month of the year in Koumac with around 72mm 2.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 hours of sunshine per day.
May temperatures in Koumac
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 Koumac in May 2025.
Other monthly averages
Koumac weather stats
| Hottest month: | February | 29.3°C 84.7°F |
|---|---|---|
| Driest month: | September | 46mm 1.8ins |
| Sunniest month: | October | 8.6hrs |
| Coldest month: | July | 23.5°C 74.3°F |
| Wettest month: | February | 189mm 7.4ins |
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