Rarotonga, Cook islands: Annual Weather Averages
February is the hottest month in Rarotonga with an average temperature of 26.5°C (80°F) and the coldest is July at 22.5°C (73°F) with the most daily sunshine hours at 12 in October. The wettest month is January with an average of 190mm of rain. The best month to swim in the sea is in February when the average sea temperature is 27.8°C (82°F).
Average Temperature: Rarotonga
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 26 | 27 | 27 | 26 | 25 | 23 | 23 | 23 | 23 | 24 | 25 | 25 |
| °F | 79 | 80 | 80 | 78 | 76 | 73 | 73 | 73 | 73 | 74 | 76 | 77 |
Average High/Low Temperature: Rarotonga
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 28 | 29 | 29 | 28 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 27 |
| Low °C | 24 | 24 | 24 | 23 | 22 | 20 | 20 | 20 | 20 | 21 | 22 | 23 |
| High °F | 82 | 84 | 84 | 82 | 81 | 79 | 77 | 77 | 77 | 79 | 81 | 81 |
| Low °F | 75 | 75 | 75 | 73 | 72 | 68 | 68 | 68 | 68 | 70 | 72 | 73 |
Average Rainfall: Rarotonga
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 190 | 190 | 190 | 170 | 140 | 80 | 60 | 70 | 80 | 80 | 130 | 160 |
| Days | 19 | 17 | 19 | 18 | 17 | 16 | 15 | 15 | 15 | 15 | 14 | 17 |
Average Daily Sunshine Hours: Rarotonga
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 7 | 8 | 8 | 9 | 10 | 11 | 10 | 11 | 12 | 12 | 10 | 8 |
Average Sea Temperature: Rarotonga
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 28 | 28 | 28 | 28 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 27 |
| °F | 82 | 82 | 82 | 82 | 79 | 77 | 77 | 76 | 76 | 77 | 79 | 80 |