Cook Islands
Rarotonga in May: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Rarotonga in May is climatically well suited to beach holidays, family holidays and city breaks. The average daily high is around 26 °C, and the sea is about 26 °C. With about 17 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
70/100 · #8
Warmth
#6
Dryness
#7
Sun
#10
Sea warmth
#6
Published best categories: none
Rarotonga · MayPhoto: 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.)
- 17 rainy days (est.)
- Sun (est.)
- 5 h/day
- Humidity
- 79 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| April | 27 | 26 | 17 | 155 | 5.9 | 80 | 5.3 | 27 | 69 |
| May (selected) | 26 | 25 | 17 | 160 | 4.7 | 79 | 5.4 | 26 | 70 |
| June | 24 | 24 | 11 | 62 | 4.6 | 78 | 5.5 | 25 | 81 |
How do the previous and next months compare?
Baseline: May (70/100)
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 | |
|---|---|---|---|---|---|---|---|---|---|
| April | -1 | +1 °C | +1.1 °C | +0.1 | -5.3 mm | +1.2 h | +0.8 % | ±0 m/s | +1 °C |
| June | +11 | -1.1 °C | -1.1 °C | -6.1 | -98.2 mm | -0.1 h | -1.2 % | +0.2 m/s | -1 °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 May?
The average daily high is around 26 °C, with an average daily low of about 25 °C.
Can you swim in Rarotonga in May?
The sea is about 26 °C (warm).
Does it rain a lot in Rarotonga in May?
The curated estimate is about 17 rainy days per month, not a directly measured long-term average. Total precipitation averages around 160 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. May is not among them.