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Avarua Weather in August

August in Avarua sees daytime temperatures around 25°C (77°F) and lows of 22°C (72°F) at night. With around 80 mm (3.1 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Avarua in August

Records from the past 30 years suggest around 14 days of rain, with 80 mm (3.1 in) average for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Avarua in August

Avarua has perfect weather in August, with days reaching 25°C (77°F) and nights cooling to 22°C (72°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 22°C (72°F), evenings stay pleasantly warm. Enjoy the mildest temperatures of the year, while still enjoying warm and pleasant days.

Sunshine in Avarua in August

Expect a lot of sunshine this month, with about 191 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in Avarua in August

August sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.

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Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the Cook Islands, check out our Avarua's climate page.

Avarua Temperature in August

Min TemperatureMin Temperature 22°C (72°F)  
Max TemperatureMax Temperature 25°C (77°F)  
Chance of RainChance of Rain 48%  
PrecipitationPrecipitation 80 mm (3.1 in)  
Rainy daysRainy days 14 days  
HumidityHumidity 83% *  
WindspeedWindspeed 4 m/s (8 knots) *  
SunshineSunshine 191 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Rarotonga, the Cook Islands (4 KM, 3 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Avarua typically stay consistent throughout August, with daily highs averaging around 25°C (77°F). Nights are warm, with lows around 20°C (68°F).

Average temperatures in August

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in August

Historical weather for Avarua in August

Browse day-by-day weather records for Avarua spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Avarua historical weather extremes in August

According to our 49 years of weather records for Avarua, the following extremes were recorded between 1976 and 2025.

  • Avarua recorded its highest August temperature of 31°C (88°F) on August 27, 1999.
  • Avarua experienced its chilliest August day on August 17, 1986, reaching only 20°C (68°F).
  • Avarua registered its coldest August night on August 27, 2000, with temperatures dropping to 12°C (54°F).

Best Places in the Cook Islands in 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 →

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Legend perfect weather pleasant tolerable unpleasant poor
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).

What to Wear in Avarua in August

Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Avarua in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
7/10
Cycling
9/10
Walking
9/10
Camping
8/10
Outdoor sports
9/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the Cook Islands, check out our Avarua's climate page.

More climate data for Avarua