December · Cook Islands
Best time to visit Aitutaki in December Weather, crowds & prices
Weather in Aitutaki in December
Average temperature 26°C, 206 mm of rain, about 30 days with 6+ hours of sunshine and 84% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
7.4/10
Ranked #10 of 12 months
- Avg temp
- 26°C
- Rainfall
- 206 mm
- Humidity
- 84%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
December in Aitutaki scores 7.4/10 for beach and coastal travel - ranked #10 of 12. Expect around 26°C, 206 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Aitutaki's lagoon is a wide spread of turquoise water scattered with sandbars and small palm islets.
December in Aitutaki: strong conditions, 10th of 12
Days in December average 26°C (79°F) and humidity near 84% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
This is the year's wettest stretch at 206 mm, but with about 30 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 7.4/10 on the same scale — 10th of 12 months, versus 9/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, September is materially better in Aitutaki — 1.6 points higher on the same scale.
Frequently asked
- What is the weather like in Aitutaki in December?
- In December, Aitutaki averages 26°C, 206 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 7.4/10.
- Is December a good time to visit Aitutaki?
- December earns a 7.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Aitutaki in December?
- Expect about 206 mm of rain in December. Average humidity is 84% and there are about 30 days with 6+ hours of sunshine.
Curated in Aitutaki
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Aitutaki, Cook Islands. Live activities and tours from GetYourGuide, matched to this destination.