Noumea Weather in September
Noumea in September sees high temperatures, with highs around 23°C (73°F) and overnight lows of 18°C (64°F). Overall perfect conditions make it one of the better months to visit.
Rainfall in Noumea in September
On average, there are about 10 days with rain during this month, averaging 52 mm (2 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Noumea in September
The perfect temperature in Noumea in September makes it a solid month to visit, with 23°C (73°F) during the day and 18°C (64°F) at night. This kind of day-to-night contrast is typical for this time of year. With lows of 18°C (64°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Noumea in September
Expect a lot of sunshine this month, with about 228 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in Noumea in September
September sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.
Average water temperature in September
With water at 23°C (73°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Noumea.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Caledonia, check out our Noumea's climate page.
Noumea Temperature in September
Min Temperature
18°C (64°F)
Max Temperature
23°C (73°F)
Water Temperature
23°C (73°F)
Chance of Rain
32%
Precipitation
52 mm (2 in)
Rainy days
10 days
Humidity
72%
Windspeed
4 m/s (8 knots)
Sunshine
228 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Noumea typically stay consistent throughout September, with daily highs averaging around 23°C (73°F). Nights are pleasant, with lows around 17°C (63°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Noumea in September
Browse day-by-day weather records for Noumea spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Noumea historical weather extremes in September
Based on 49 years of weather observations in Noumea between 1976 and 2025, these are the recorded extremes.
- Noumea recorded its highest September temperature of 33°C (91°F) on September 26, 2020.
- The lowest daytime temperature in September was 18°C (64°F), recorded on September 16, 1976.
- The coldest night in September in Noumea was on September 1, 2013, with a minimum of 10°C (50°F).
Best Places in New Caledonia in September
Find out more about the weather in New Caledonia and which places have the best travel conditions in this month. See all of New Caledonia in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Noumea in September
For Noumea in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. The water temperature sits at about 23°C (73°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Noumea in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Caledonia, check out our Noumea's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Noumea climate overview or explore weather in New Caledonia.
