Avarua weather by month
Avarua runs from about 22°C in August to 27°C in March, with February the wettest month at 358 mm.
warmest month
March
27°C
coolest month
August
22°C
wettest month
February
358 mm
worst air month
October
8 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 26°C | 75 mm | 337 h | 4 |
| February | 26°C | 358 mm | 291 h | 4 |
| March | 27°C | 128 mm | 325 h | 5 |
| April | 26°C | 217 mm | 294 h | 5 |
| May | 26°C | 84 mm | 246 h | 6 |
| June | 24°C | 35 mm | 283 h | 6 |
| July | 23°C | 123 mm | 280 h | 5 |
| August | 22°C | 44 mm | 296 h | 6 |
| September | 23°C | 119 mm | 285 h | 7 |
| October | 23°C | 55 mm | 347 h | 8 |
| November | 23°C | 115 mm | 322 h | 6 |
| December | 25°C | 197 mm | 310 h | 6 |
About 3,616 hours of sun a year. Roughly 151 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.