Rarotonga
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Rarotonga Weather in August

Rarotonga in August averages 25°C (77°F) during the day and 22°C (72°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Rarotonga in August

Looking at the last 30 years, the data shows about 14 days with rain, averaging 80 mm (3.1 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Rarotonga in August

August is one of the better months to visit Rarotonga. Expect 25°C (77°F) during the day and 22°C (72°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights remain mild at 22°C (72°F), making evenings a pleasant time to be outdoors. While the temperatures are lower than usual, the month maintains its warmth throughout.

Sunshine in Rarotonga 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 Rarotonga in August

Wind speeds average 4 m/s (8 knots) during August. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

Rarotonga Temperature in August

Min Temperature
22°C (72°F)
Max Temperature
25°C (77°F)
Chance of Rain
48%
Precipitation
80 mm (3.1 in)
Rainy days
14 days
Humidity
83%
Windspeed
4 m/s (8 knots)
Sunshine
191 hours
Percentage Sunshine

Rarotonga Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Rarotonga - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Rarotonga 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 records for Rarotonga in August

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

Rarotonga historical weather extremes in August

According to our 50 years of weather records for Rarotonga, the following extremes were recorded between 1976 and 2026.

  • Rarotonga recorded its highest August temperature of 31°C (88°F) on August 27, 1999.
  • The coldest August day was on August 17, 1986, with a maximum of 20°C (68°F).
  • The coldest night in August in Rarotonga was on August 27, 2000, with a minimum of 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 →

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 Rarotonga 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Rarotonga 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

Rarotonga 3-Day Forecast

Popular in August

Where to go in August - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.