May · Cook Islands
Best time to visit Aitutaki in May Weather, crowds & prices
Weather in Aitutaki in May
Average temperature 27°C, 140 mm of rain, about 15 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
6.8/10
Ranked #12 of 12 months
- Avg temp
- 27°C
- Rainfall
- 140 mm
- Humidity
- 81%
- Days with 6h+ sun
- 15
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
May in Aitutaki scores 6.8/10 for beach and coastal travel - ranked #12 of 12. Expect around 27°C, 140 mm of rain, and roughly 15 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.
May in Aitutaki: mixed conditions, plan around the weather
Days in May average 27°C (80°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
140 mm of rain signals a properly wet month, with only about 15 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 6.8/10 on the same scale — 12th 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.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, September is materially better in Aitutaki — 2.2 points higher on the same scale.
Frequently asked
- What is the weather like in Aitutaki in May?
- In May, Aitutaki averages 27°C, 140 mm of rain, and about 15 days with 6+ hours of sunshine. Its climate-comfort score is 6.8/10.
- Is May a good time to visit Aitutaki?
- May earns a 6.8/10 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 May?
- Expect about 140 mm of rain in May. Average humidity is 81% and there are about 15 days with 6+ hours of sunshine.
Curated in Aitutaki
Tickets & experiences
Things to do in Aitutaki
Aitutaki, Cook Islands. Live activities and tours from GetYourGuide, matched to this destination.