Noumea weather by month
Noumea runs from about 20°C in July to 27°C in January, with March the wettest month at 306 mm.
warmest month
January
27°C
coolest month
July
20°C
wettest month
March
306 mm
worst air month
October
7 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 27°C | 120 mm | 352 h | 5 |
| February | 26°C | 266 mm | 282 h | 5 |
| March | 25°C | 306 mm | 235 h | 6 |
| April | 24°C | 107 mm | 266 h | 5 |
| May | 21°C | 50 mm | 288 h | 6 |
| June | 21°C | 60 mm | 255 h | 7 |
| July | 20°C | 172 mm | 230 h | 6 |
| August | 20°C | 33 mm | 290 h | 5 |
| September | 21°C | 77 mm | 330 h | 6 |
| October | 22°C | 97 mm | 357 h | 7 |
| November | 24°C | 83 mm | 329 h | 5 |
| December | 26°C | 261 mm | 353 h | 6 |
About 3,567 hours of sun a year. Roughly 163 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.