Island, Cook Islands
Rarotonga weather by month and the best time to visit
When to go to Rarotonga
May–Oct is drier, cooler and busier; humpback whales pass Jul–Oct. Nov–Apr is hot, humid and wet, with cyclone risk.
Rarotonga weather by month
Average daily high, rainfall and conditions.
- Jan27°195 mm
- Feb27°202 mm
- Mar27°198 mm
- Apr27°166 mm
- May26°150 mm
- Jun25°62 mm
- Jul24°77 mm
- Aug24°63 mm
- Sep24°83 mm
- Oct24°95 mm
- Nov25°144 mm
- Dec26°175 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 27°C80°F | 26°C79°F | 195 mm | 82% | Rainy |
| February | 27°C81°F | 26°C79°F | 202 mm | 81% | Rainy |
| March | 27°C81°F | 26°C80°F | 198 mm | 81% | Rainy |
| April | 27°C80°F | 26°C79°F | 166 mm | 80% | Rainy |
| May | 26°C78°F | 25°C77°F | 150 mm | 79% | Pleasant |
| June | 25°C76°F | 24°C75°F | 62 mm | 78% | Pleasant |
| July | 24°C75°F | 23°C73°F | 77 mm | 78% | Pleasant |
| August | 24°C74°F | 23°C73°F | 63 mm | 78% | Pleasant |
| September | 24°C75°F | 23°C73°F | 83 mm | 79% | Pleasant |
| October | 24°C76°F | 23°C74°F | 95 mm | 79% | Pleasant |
| November | 25°C77°F | 24°C76°F | 144 mm | 81% | Pleasant |
| December | 26°C79°F | 25°C77°F | 175 mm | 82% | Rainy |
Quick answers
What is the best month to visit Rarotonga?
May–Oct. May–Oct is drier, cooler and busier; humpback whales pass Jul–Oct. Nov–Apr is hot, humid and wet, with cyclone risk.
When is the rainy season in Rarotonga?
Rain peaks in February with about 202 mm. Months with 150 mm or more: Dec–May.
What is the hottest month in Rarotonga?
March, with average highs of 27°C (81°F).
How cold does Rarotonga get?
The coolest nights are in August, averaging 23°C (73°F).
More about Rarotonga
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.