🇨🇰 Rarotonga (Cook Islands) vs Sydney 🇦🇺

Rarotonga (Cook Islands), Cook Islands vs Sydney, Australia — a side-by-side climate comparison to help you pick. Rarotonga (Cook Islands) is the warmer of the two — about 1 degree warmer on average across the year. Sydney is drier, with roughly 154 fewer rainy days a year.

Climate at a glance

🇨🇰 Rarotonga (Cook Islands)🇦🇺 Sydney
Avg annual high23°C22°C
Hottest monthMarch (25°C)January (26°C)
Coldest monthAugust (20°C low)July (8°C low)
Rainy days / year279125
SnowRareRare
Best months to visitJuly, September, OctoberApril, September, October

🇨🇰 Rarotonga (Cook Islands)

Best around July, September, October. Hottest in March (25°C), coldest lows in August (20°C).

🇦🇺 Sydney

Best around April, September, October. Hottest in January (26°C), coldest lows in July (8°C).

Frequently asked questions

Is Rarotonga (Cook Islands) or Sydney warmer?

Rarotonga (Cook Islands) is warmer overall, averaging about 1 degree higher across the year.

Which is rainier, Rarotonga (Cook Islands) or Sydney?

Rarotonga (Cook Islands) is rainier — Sydney sees about 154 fewer rainy days per year.

When is the best time to visit Rarotonga (Cook Islands) vs Sydney?

Rarotonga (Cook Islands) is best around July, September, October; Sydney is best around April, September, October.

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