Avarua weather in September
September in Avarua: nice, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Avarua · #462 of 897 destinations to visit in September · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Avarua in September
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Avarua climate normals — September
| Daytime high | 24°C / 74°F | 😎 nice |
|---|---|---|
| Nighttime low | 23°C / 73°F | |
| Rainfall | 87 mm / 3.4 in | 🌧 rainy |
| Rainy days | 10 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 18°C / 65°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 12 h | |
| Wind | 32 km/h / 20 mph | |
| Air quality (US AQI) | 46 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Avarua in September — FAQ
- Is September a good time to visit Avarua?
- September in Avarua: nice, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Avarua on SeasonMap's comfort score (82/100).
- What is the weather like in Avarua in September?
- In September, Avarua averages a daily high of 23.6°C and a low of 22.5°C, with about 86.8 mm of rain over roughly 9.8 rainy days.
- What is the air quality in Avarua in September?
- Avarua has a mean US Air Quality Index of about 46 in September.