August is one of the excellent months to visit Arutanga, with daytime temperatures of 26°C (79°F) and lows of 24°C (75°F) at night. Do note that quite a bit of rainfall is typical, averaging around 71 mm (2.8 in).
If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Arutanga.
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Pick a month to see the average temperature, rainfall and sunshine in Arutanga - and find the best time to visit.
41-year average (1976-2025)
Based on our historical records, temperatures in Arutanga typically stay consistent throughout August, with daily highs averaging around 26°C (79°F). Nights are warm, with lows around 23°C (73°F).
Browse day-by-day weather records for Arutanga spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on weather observations in Arutanga between 2006 and 2026, these are the recorded extremes during August.
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 August →
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 weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. 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 Arutanga climate overview or explore weather in the Cook Islands.
Where to go in August - average daytime high across popular destinations.
Penrhyn
29°C (84°F) Aitutaki
26°C (79°F) Arutanga26°C (79°F) Muri25°C (77°F) Avarua25°C (77°F) Arorangi25°C (77°F) Rarotonga25°C (77°F) Ngatangiia25°C (77°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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