Weather in Noumea in September 2025
Average weather
Average temperature in Noumea in September
The expected average maximum temperature in September is +22°C with a maximum of +24°C and a minimum of +18°C.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +22°C to +22°C.
Is Noumea warm or cold in September?
Noumea is typically mild in September.
Maximum temperatures go up compared to the previous month from +21°C to +22°C. The minimum temperature also goes up from +19°C to +19°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how September is compared to other months in Noumea:
Climate in Noumea in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +21°C | +22°C | +23°C | ||||
| Min. temperature | ||||||
| +10°C | +11°C | +13°C | ||||
| Max. temperature | ||||||
| +29°C | +30°C | +32°C | ||||
| Rainfall | ||||||
| 61 mm | 43 mm | 47 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 76% | 76% | 77% | ||||
| Air pressure | ||||||
| 1017 HPa | 1016 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 3 | 5 | 5 | ||||
| Cloudy days | ||||||
| 12 | 12 | 11 | ||||
| Rainy days | ||||||
| 15 | 13 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting warmer as September arrives. The average maximum temperature goes up from +21°C to +22°C during the day. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 61 mm to 43 mm. Humidity levels don’t change as the month goes on, averaging around 76%. The average wind speed doesn’t change much during September, staying around 3 m/s. The good news is there are likely to be more sunny days in September, from 3 to 5.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 5 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Noumea is gradually increasing during September, going from 3 m/s to 5 m/s over the course of the month.
Rain
How was the weather last September in Noumea?
Climate Change over Years
The climate in Noumea in September has not changed much over the last 43 years.
The average temperature was the lowest in 1994 (+23°C) and the highest in 2020 (+27°C). The driest year was 1993 with only 486 mm of rainfall, and the wettest year was 2021 with 2253 mm.
FAQ
Is September a good time to visit Noumea?
Can you sunbathe in Noumea in September?
Is Noumea rainy in September?
Is it sunny in Noumea in September?
Monthly weather in Noumea
Source of the data
For this page, we’ve looked at the typical weather in Noumea, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
