Cook Islands, Cook IslandsQuick decision
When to visit Cook Islands?
🌞 Best time overall
October
🌡️ Optimal temperature
21°C–22°C in October
🌧 Least rain
37% rainy days in October
🌧 Wettest month
March (66%)
📅 Best score
7.7/10
By trip type
Best time by type of trip
Aitutaki LagoonMay–Oct — Pacific's most beautiful lagoon, One Foot Island.
Snorkeling & turtlesYear-round — accessible reefs, turtles, tropical fish.
Polynesian cultureYear-round — dances, weaving, ukulele, Saturday markets.
BudgetNov–Mar — rainy season but lodging –30%, warm sea.
Monthly climate data
Cook Islands weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 23°C | 25°C | 58% | 6.5 | 12.2h | 7.4/10 |
| ⛅ February | 23°C | 25°C | 65% | 8.3 | 11.9h | 7.3/10 |
| ⛅ March | 23°C | 25°C | 66% | 6.9 | 11.5h | 7.2/10 |
| 🌦️ April | 23°C | 24°C | 51% | 4.8 | 11.0h | 7.4/10 |
| 🌦️ May | 22°C | 24°C | 56% | 5.8 | 10.3h | 7.2/10 |
| 🌤️ June | 21°C | 22°C | 37% | 2.7 | 10.3h | 7.5/10 |
| 🌤️ July | 20°C | 22°C | 43% | 3.8 | 10.2h | 7.4/10 |
| 🌤️ August | 20°C | 22°C | 36% | 3.0 | 10.8h | 7.6/10 |
| 🌤️ September | 20°C | 22°C | 39% | 3.0 | 11.0h | 7.5/10 |
| 🌤️ October | 21°C | 22°C | 37% | 3.0 | 11.7h | 7.7/10 |
| 🌤️ November | 21°C | 22°C | 38% | 3.2 | 12.8h | 7.7/10 |
| 🌦️ December | 22°C | 24°C | 61% | 6.5 | 12.3h | 7.3/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
🌴 Tropical destination — heavy rain months benefit from an algorithmic adjustment: tropical showers are intense but brief and usually don't ruin a trip.
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 24°C, 58% rainy days, 10.9h sunshine/day. Score: 7.3/10.
☀️ Summer (Jun–Aug) — Good time
Average 22°C, 39% rainy days, 10.4h sunshine/day. Score: 7.5/10.
🍂 Autumn (Sep–Nov) — Good time
Average 22°C, 38% rainy days, 11.8h sunshine/day. Score: 7.6/10.
❄️ Winter (Dec–Feb) — Good time
Average 25°C, 61% rainy days, 12.1h sunshine/day. Score: 7.3/10.
Accommodation
Find a place to stay in Cook Islands
Check availability during the recommended period
Tip : off-peak months (March, April) are cheapest but weather is significantly worse.
Search on Hotels.comActivities & tours
Activities and tours in Cook Islands
Guided tours, skip-the-line tickets and local experiences.
Browse activities on GetYourGuide
Flights
Find a flight to Cook Islands
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
October is ideal with 37% rainy days and 22°C. The months of October & November offer comparable conditions.
March is the wettest month with 66% rainy days.
Yes, October is the best month with an average of 22°C.
In winter, the average score is 7.3/10. Acceptable conditions for cultural visits.
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