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September Weather in Avarua Cook Islands. Daily high temperatures are around 78°F, rarely falling below 73°F or exceeding 81°F. Daily low temperatures are around 69°F, rarely falling below 64°F or exceeding 74°F.
September. 2021. Daily. S. M. T. W. T. F. S. 29. 79°. 65°. 30. 80°. 67°. 31. 80°. 67°. 1. 79°. 67°. 2. 82°. 69°. 3. 81°. 70°. 4. 72°. 68°. 5. 79°. 71°. 6. 79°. 69°. 7. 80°.
Min Temperature 22°C. Max Temperature 25°C. Chance of Rain 38% Precipitation 81 mm. Rainy days 11 days. Humidity 80% * Windspeed 18 km/h * Sunshine 182 hours * Percentage Sunshine * * Data from: Rarotonga, the Cook Islands (4 KM, 3 Miles). Where to go in the Cook Islands in September.
The weather in Avarua in September is pleasantly warm and breezy, with average highs of 75°F (24°C) and lows of 74°F (23°C).
The average sea temperature in September in Rarotonga and the Cook Islands is 24°C / 75°F, some of the coldest sea temperatures of the year. © CookIslandsPocketGuide.com. Hours of Sun in September. Considering it’s the “dead of winter” in September in the Cook Islands, days are still long with around 12 hours of daylight each day.
76°F. Moderate rain at times. 34% of time. 33% 14% Weather at 12pm. 76°F. Partly Cloudy. 34% of time. 25% 21% 15% Weather at 6pm. 76°F. Partly Cloudy. 36% of time. 25% 18% Weather at 3am.
Average Temperatures in September. The average temperature in Avarua for a typical day in September fluctuates between a maximum of 75°F and a minimum of 74°F. The conditions can be described as pleasantly warm and breezy. For comparison, the warmest month in Avarua is February with maximum temperatures of 81°F and minimum temperatures of 79°F.
