Monthly climate guide
Nouméa weather in September
Expect warm weather in Nouméa in September: afternoons reach about 22°C (72°F), while nights drop to around 20°C (69°F). Around 41 mm of rain falls over the month (fairly dry), and skies are a mix of sun and cloud. Daytime highs are about the same as August and about the same as October.
What stands out in September
- Only one month is cooler in Nouméa than September.
- Rain is well below Nouméa's usual level (around 50% less).
- There's little difference between day and night (around 2°C).
- It's one of the drier stretches of the year in Nouméa.
It's usually the driest month of the year.
Avg high
22°C
72°F
Avg low
20°C
69°F
Rainfall
41 mm
fairly dry
Humidity
74%
relative
Sky
45%
cloud · a mix of sun and cloud
Nouméa weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 27°C / 80°F | 25°C / 77°F | 109 mm | 78% | 50% |
| February | 27°C / 81°F | 26°C / 79°F | 85 mm | 80% | 53% |
| March | 27°C / 80°F | 26°C / 78°F | 149 mm | 80% | 57% |
| April | 26°C / 78°F | 25°C / 76°F | 94 mm | 78% | 59% |
| May | 24°C / 76°F | 23°C / 73°F | 100 mm | 75% | 61% |
| June | 23°C / 73°F | 22°C / 71°F | 71 mm | 75% | 61% |
| July | 22°C / 72°F | 21°C / 69°F | 65 mm | 74% | 56% |
| August | 22°C / 71°F | 20°C / 68°F | 51 mm | 73% | 54% |
| September | 22°C / 72°F | 20°C / 69°F | 41 mm | 74% | 45% |
| October | 23°C / 74°F | 22°C / 71°F | 41 mm | 77% | 45% |
| November | 25°C / 76°F | 23°C / 73°F | 76 mm | 77% | 45% |
| December | 26°C / 78°F | 24°C / 76°F | 93 mm | 79% | 52% |
What to pack for September
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A small travel umbrella, just in case
Is September a good time to visit Nouméa?
Compare the months in the chart above to find your ideal window.
Best time to visit Nouméa →Cite or embed this data
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Nouméa weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/new-caledonia/noumea/september
<a href="https://weathercompare.eu/weather/new-caledonia/noumea/september">Nouméa weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/new-caledonia/noumea" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Nouméa weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/new-caledonia/noumea/september">Nouméa weather in September</a> – WeatherCompare</p>
Nouméa in September: quick answers
Is September a good time to visit Nouméa?
Yes. September is one of the best months for Nouméa, with highs around 22°C and about 41 mm of rain.
How warm is Nouméa in September?
Average highs are about 22°C (72°F) and average lows about 20°C (69°F), based on 10 years of daily data.
Does it rain a lot in Nouméa in September?
Nouméa typically gets around 41 mm of rain in September — fairly dry. It's usually the driest month of the year.
Figures are long-term averages for the area around Nouméa (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.