Climate of Cook Islands — Month by Month
Country-wide average for Cook Islands. Part of Polynesia, Oceania.
Located in Polynesia, Oceania, Cook Islands has a tropical climate. Country-wide average temperatures range from 22.5°C / 72.5°F in August to 26.6°C / 79.9°F in February, with annual rainfall totalling around 1960 mm / 77.2 in — driest in July (85 mm / 3.3 in), wettest in January (265 mm / 10.4 in). These are national averages; regional variation can be substantial, especially in geographically diverse countries. For city-level detail see the cities section below, and for state or province breakdowns follow the subdivisions link if available.
Best time to visit Cook Islands →
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 26.5°C79.7°F | 265 mm10.4″ | Tropical |
| February | 26.6°C79.9°F | 235 mm9.3″ | Tropical |
| March | 26.3°C79.3°F | 215 mm8.5″ | Tropical |
| April | 25.4°C77.7°F | 165 mm6.5″ | Tropical |
| May | 24.1°C75.4°F | 145 mm5.7″ | Tropical |
| June | 23.2°C73.8°F | 105 mm4.1″ | Tropical |
| July | 22.6°C72.7°F | 85 mm3.3″ | Tropical |
| August | 22.5°C72.5°F | 95 mm3.7″ | Tropical |
| September | 23.1°C73.6°F | 115 mm4.5″ | Tropical |
| October | 23.9°C75°F | 135 mm5.3″ | Tropical |
| November | 24.9°C76.8°F | 175 mm6.9″ | Tropical |
| December | 25.8°C78.4°F | 225 mm8.9″ | Tropical |
Frequently asked questions
What is the best time to visit Cook Islands?
Cook Islands does not have a clear sunny-and-dry window by our cutoffs. The warmest month is February at 26.6°C / 79.9°F, and the driest is July at 85 mm / 3.3 in — likely your best travel window.
What is the climate of Cook Islands?
Cook Islands has country-wide monthly average temperatures ranging from 22.5°C / 72.5°F in August to 26.6°C / 79.9°F in February. Annual rainfall averages about 1960 mm / 77.2 in, with the wettest month being January (265 mm / 10.4 in) and the driest July (85 mm / 3.3 in). Regional variation within Cook Islands can be significant — see subdivision or city pages for detail.
What is the hottest month in Cook Islands?
The hottest month in Cook Islands is February, with a country-wide average temperature of 26.6°C / 79.9°F.
What is the coldest month in Cook Islands?
The coldest month in Cook Islands is August, with a country-wide average temperature of 22.5°C / 72.5°F.
When does it rain most in Cook Islands?
The wettest month in Cook Islands is January, averaging about 265 mm / 10.4 in of rain. The driest is July with about 85 mm / 3.3 in.