New Caledonia (Nouméa)
September
Weather in New Caledonia for September 2025
Your guide to New Caledonia weather in September - trends and predictions
Until now, September 2025 in New Caledonia is slightly cooler than the historical average by -0.6 °C.
The forecast for the upcoming days in New Caledonia predicts a temperature of 24.4 °C, which is slightly above the historical average.
In general, the average temperature in New Caledonia at the beginning of September is 23 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 24 °C by the end of September.
The climate of New Caledonia in September is notably wet, with an average of 14 rainy days, and a total of 74.3 mm of precipitation.
Temperatures
Rain 🌧️
16
Dry days
14
Rainy days
0
Snow days
22°/18°
Temperatures
23 km/h
Avg max wind
73 %
Avg humidity
New Caledonia Weather September
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What’s the Weather Like in New Caledonia This September?
Discover the average temperatures and weather trends across New Caledonia’s cities this September.
Temperatures trend during September in New Caledonia
See the weather trend as well as the moving average line
September weather in New Caledonia day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 24° /18° | 0.5 mm | 6 | |
| 2 Sept. | Patchy rain possible | 24° /18° | 0.7 mm | 6 | |
| 3 Sept. |  Overcast | 23° /18° | 0.2 mm | 6 | |
| 4 Sept. | Light rain shower | 24° /18° | 1.8 mm | 6 | |
| 5 Sept. | Light rain shower | 23° /19° | 2.2 mm | 6 | |
| 6 Sept. |  Cloudy | 22° /18° | 2.5 mm | 6 | |
| 7 Sept. | Cloudy | 21° /17° | 3.1 mm | 5 | |
| 8 Sept. | Patchy rain possible | 22° /16° | 0.5 mm | 6 | |
| 9 Sept. |  Partly cloudy | 23° /17° | 0 mm | 6 | |
| 10 Sept. |  Sunny | 24° /17° | 0 mm | 6 | |
| 11 Sept. | Patchy rain possible | 23° /18° | 1.8 mm | 6 | |
| 12 Sept. | Patchy rain possible | 23° /18° | 0.7 mm | 6 | |
| 13 Sept. | Patchy rain possible | 23° /17° | 0.3 mm | 6 | |
| 14 Sept. | Patchy rain possible | 22° /18° | 9.7 mm | 6 | |
| 15 Sept. |  Moderate or heavy rain shower | 20° /18° | 29.1 mm | 5 | |
| 16 Sept. | Patchy rain possible | 23° /18° | 0.3 mm | 2.3 | |
| 17 Sept. | Patchy rain possible | 24° /18° | 0.2 mm | 2.3 | |
| 18 Sept. | Patchy rain possible | 25° /19° | 0.6 mm | 2.3 | |
| 19 Sept. | Patchy rain possible | 24° /19° | 0.3 mm | 2.2 | |
| 20 Sept. | Patchy rain possible | 25° /19° | 0.5 mm | 6 | |
| 21 Sept. | Patchy rain possible | 26° /21° | 0.2 mm | 6 | |
| 22 Sept. | Patchy rain possible | 25° /20° | 0.8 mm | 6 | |
| 23 Sept. | Patchy rain possible | 25° /20° | 2.5 mm | 6 | |
| 24 Sept. | Patchy rain possible | 23° /20° | 0.2 mm | 6 | |
| 25 Sept. | Patchy rain possible | 26° /19° | 2.8 mm | 6 | |
| 26 Sept. | Patchy rain possible | 21° /20° | 4.4 mm | 6 | |
| 27 Sept. | Partly cloudy | 26° /21° | 0 mm | 7 | |
| 28 Sept. | Patchy rain possible | 24° /22° | 1.5 mm | 6 | |
| 29 Sept. | Patchy rain possible | 25° /21° | 0.3 mm | 6 | |
| 30 Sept. | Partly cloudy | 23° /18° | 4.5 mm | 6 | |
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Important Notice
Our weather forecast for New Caledonia in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the New Caledonia forecast closer to your planned date for the most up-to-date weather information.
Change Month
New Caledonia in September - FAQ
What are the expected maximum and minimum temperatures in New Caledonia during September?
During September, expect a variety of temperatures with highs around 22° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in New Caledonia during September?
Moderate rainfall is anticipated in New Caledonia during September, with a total of 74.3 mm spread over approximately 14 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in New Caledonia during September?
The average wind speed in New Caledonia during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in New Caledonia
Explore the daily rainfall trends and prepare for New Caledonias September weather 💧
UV exposure in New Caledonia during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Regions in New Caledonia
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Where is New Caledonia?Get accurate weather forecasts for New Caledonia, located at latitude -22.274 and longitude 166.449. Stay updated with localized weather information tailored for New Caledonia.
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