With daytime temperatures of 28°C (82°F) and nighttime lows of 25°C (77°F), May in Aitutaki brings high temperatures during the day. Do keep in mind that May is part of the rainy season, with frequent and often heavy rainfall.
Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Aitutaki.
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Pick a month to see the average temperature, rainfall and sunshine in Aitutaki - and find the best time to visit.
43-year average (1976-2025)
Based on our historical records, temperatures in Aitutaki typically stay consistent throughout May, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 24°C (75°F).
Browse day-by-day weather records for Aitutaki spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Aitutaki from 2006 through 2026.
Find out more about the weather in the Cook Islands and which places have the best travel conditions in this month. See all of the Cook Islands in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses could come in handy during the sunnier parts of your trip.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Wind Speed
See the full Aitutaki climate overview or explore weather in the Cook Islands.
Where to go in May - average daytime high across popular destinations.
Penrhyn
30°C (86°F) Aitutaki
28°C (82°F) Arutanga28°C (82°F) Muri27°C (81°F) Avarua27°C (81°F) Arorangi27°C (81°F) Rarotonga27°C (81°F) Ngatangiia27°C (81°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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