Weather & climate · Avarua
Best Time to Visit Cook Islands
June to October
The best time to visit the Cook Islands is June to October, when daytime highs in Avarua are around 24–25°C. April to May and November to December are also a good time to go. March is the warmest month (27°C by day), August the coldest (23°C at night), and February the wettest with about 202 mm of rain.
27°C
Warmest: March
23°C
Coldest nights: August
1610 mm
Rain per year
202 mm
Wettest: February
Cook Islands weather by month
- Jan27°C26°C195 mm
- Feb27°C26°C202 mm
- Mar27°C27°C198 mm
- Apr27°C26°C166 mm
- May26°C25°C150 mm
- Jun25°C24°C62 mm
- Jul24°C23°C77 mm
- Aug24°C23°C63 mm
- Sep24°C23°C83 mm
- Oct24°C24°C95 mm
- Nov25°C24°C144 mm
- Dec26°C25°C175 mm
Best time Good Less ideal
| Month | High | Low | Rain | Humidity | Cloud cover | Verdict |
|---|---|---|---|---|---|---|
| January | 27°C | 26°C | 195 mm | 82% | 70% | Rainy |
| February | 27°C | 26°C | 202 mm | 81% | 71% | Rainy |
| March | 27°C | 27°C | 198 mm | 81% | 68% | Rainy |
| April | 27°C | 26°C | 166 mm | 80% | 68% | Good |
| May | 26°C | 25°C | 150 mm | 79% | 70% | Good |
| June | 25°C | 24°C | 62 mm | 78% | 68% | Best time |
| July | 24°C | 23°C | 77 mm | 78% | 64% | Best time |
| August | 24°C | 23°C | 63 mm | 78% | 66% | Best time |
| September | 24°C | 23°C | 83 mm | 79% | 68% | Best time |
| October | 24°C | 24°C | 95 mm | 79% | 69% | Best time |
| November | 25°C | 24°C | 144 mm | 81% | 73% | Good |
| December | 26°C | 25°C | 175 mm | 82% | 71% | Good |
Data: NASA POWER (Prediction Of Worldwide Energy Resources) — 25-year climate averages 2001–2025, public domain, for the area around Avarua (-21.2, -159.77). Satellite and model averages — local weather stations can differ by 1–2 °C, and mountains or coasts elsewhere in the Cook Islands have their own climate.
Frequently asked questions
When is the best time to visit the Cook Islands?
June to October. The best time to visit the Cook Islands is June to October, when daytime highs in Avarua are around 24–25°C. April to May and November to December are also a good time to go. March is the warmest month (27°C by day), August the coldest (23°C at night), and February the wettest with about 202 mm of rain.
What is the hottest month in the Cook Islands?
March, with average highs of 27°C in Avarua.
What is the coldest month in the Cook Islands?
August, when nights drop to about 23°C and days reach 24°C.
What is the rainiest month in the Cook Islands?
February with about 202 mm; June is the driest (62 mm).
When should I avoid visiting the Cook Islands?
February is the least comfortable month on average: 27°C by day and 202 mm of rain.