Aitutaki weather by month
Cook Islands

The best time to visit Aitutaki is July to September — 87/100 in August, 25°C and 11 rainy days. The best season is the dry season, June to November (84/100 on average).
The worst month is May at 70/100 — hot, soaked, clean air. See May →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Cook Islands →
Aitutaki, month by month
Comfort score out of 100 for the kind of trip Aitutaki is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 71 | B | 27°C | 22 d | 10 h | Quiet | 1 |
| FebFebruary | 72 | B | 27°C | 19 d | 10 h | Peak | 1 |
| MarMarch | 80 | A | 27°C | 23 d | 10 h | Shoulder | 1 |
| AprApril | 77 | B | 27°C | 19 d | 10 h | Shoulder | 1 |
| MayMay | 70 | B | 26°C | 17 d | 9 h | Busy | 1 |
| JunJune | 82 | A | 26°C | 11 d | 9 h | Busy | 1 |
| JulJuly | 84 | A | 25°C | 11 d | 9 h | Peak | 3 |
| AugAugust | 87 | A | 25°C | 11 d | 10 h | Peak | 3 |
| SepSeptember | 86 | A | 25°C | 12 d | 10 h | Busy | 2 |
| OctOctober | 83 | A | 25°C | 15 d | 10 h | Busy | 3 |
| NovNovember | 80 | A | 26°C | 16 d | 11 h | Shoulder | 1 |
| DecDecember | 72 | B | 26°C | 23 d | 10 h | Quiet | 1 |
What's on in Aitutaki through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Aitutaki in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsDrier, cooler half of the year, Te Maeva Nui, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet