Cook Islands
Rarotonga in December: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Rarotonga in December is climatically well suited to beach holidays and family holidays. The average daily high is around 26 °C, and the sea is about 26 °C. With about 18 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
71/100 · #7
Warmth
#5
Dryness
#9
Sun
#2
Sea warmth
#5
Published best categories: none
Rarotonga · DecemberPhoto: Archives New Zealand from New Zealand · CC BY-SA 2.0Climate facts
- Average high
- 26 °C
- Average low
- 25 °C
- Sea
- 26 °C
- Rainy days (est.)
- 18 rainy days (est.)
- Sun (est.)
- 8 h/day
- Humidity
- 81 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| November | 25 | 24 | 14 | 114 | 8.1 | 80 | 5.2 | 26 | 77 |
| December (selected) | 26 | 25 | 18 | 164 | 7.9 | 81 | 5.4 | 26 | 71 |
| January | 27 | 26 | 19 | 192 | 7.9 | 82 | 5.2 | 27 | 68 |
How do the previous and next months compare?
Baseline: December (71/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| November | +6 | -0.9 °C | -0.9 °C | -3.6 | -50 mm | +0.2 h | -1.2 % | -0.2 m/s | -0.9 °C |
| January | -3 | +0.7 °C | +0.7 °C | +1.4 | +28.6 mm | ±0 h | +0.5 % | -0.2 m/s | +0.7 °C |
All twelve months in context
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Where to stay in Rarotonga
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Useful next decisions
Frequently asked questions
How warm is Rarotonga in December?
The average daily high is around 26 °C, with an average daily low of about 25 °C.
Can you swim in Rarotonga in December?
The sea is about 26 °C (warm).
Does it rain a lot in Rarotonga in December?
The curated estimate is about 18 rainy days per month, not a directly measured long-term average. Total precipitation averages around 164 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Rarotonga?
By the climate score, June, July, August and September are the strongest months for Rarotonga. For a beach trip: June, September, October and November. December is not among them.