Avarua weather by month & the best time to visit
Cook Islands · beach resort · tropical rainforest climate
The best time to visit Avarua is June — its sunniest month (Sunshine Score 83/100), with August and July close behind. Avarua averages about 2,624 hours of sunshine a year. Daytime highs around 25°C / 77°F and roughly 62 mm of rain in June.
When is the best time to visit Avarua?
For sunshine, the best time to visit Avarua is June, then August and July. The dullest month is January (67/100, 195 mm of rain). The full month-by-month picture is in the table below.
How sunny is Avarua?
Avarua gets a lot of sun: around 2,624 hours a year. June (83/100) is noticeably better than January (67). It ranks #6 of 6 destinations in Cook Islands for annual sunshine, below the national median of 2,719 hours. The year's 1,610 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 67 | 27° / 81°F | 26° / 79°F | 195 mm | 12 | 27° / 81°F |
| February | 67 | 27° / 81°F | 26° / 79°F | 202 mm | 12 | 28° / 82°F |
| March | 67 | 27° / 81°F | 26° / 79°F | 198 mm | 11 | 29° / 84°F |
| April | 67 | 27° / 81°F | 26° / 79°F | 166 mm | 9 | 28° / 82°F |
| May | 67 | 26° / 79°F | 25° / 77°F | 150 mm | 6 | 27° / 81°F |
| June | 83 | 25° / 77°F | 24° / 75°F | 62 mm | 5 | 26° / 79°F |
| July | 80 | 24° / 75°F | 23° / 73°F | 77 mm | 6 | 25° / 77°F |
| August | 83 | 24° / 75°F | 23° / 73°F | 63 mm | 7 | 24° / 75°F |
| September | 79 | 24° / 75°F | 23° / 73°F | 83 mm | 9 | 25° / 77°F |
| October | 77 | 24° / 75°F | 23° / 73°F | 95 mm | 10 | 24° / 75°F |
| November | 68 | 25° / 77°F | 24° / 75°F | 144 mm | 11 | 25° / 77°F |
| December | 67 | 26° / 79°F | 25° / 77°F | 175 mm | 12 | 26° / 79°F |
Sea temperature in Avarua by month
The sea off Avarua is warmest in March at around 29°C / 84°F, and coolest in August at 24°C / 75°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Avarua: questions and answers
What kind of destination is Avarua?
Avarua is a beach resort in Cook Islands with a tropical rainforest climate — the sea reaches 29°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Avarua get a year?
Avarua gets about 2,624 hours of sunshine a year, at its best around June.
When is the best time to visit Avarua?
The sunniest time to visit Avarua is June, when the Sunshine Score peaks at 83/100 (with August and July close behind). Expect daytime highs around 25°C / 77°F.
What is the least sunny month in Avarua?
January is the least sunny month in Avarua, scoring 67/100 with about 195 mm of rain.
What is the sea temperature in Avarua?
The sea in Avarua ranges from about 24°C (August) to 29°C (March). Month-by-month sea temperatures are on this page.
How strong is the sun in Avarua?
The typical midday UV index in Avarua peaks around 12 (extreme) in January, easing to about 5 (moderate) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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