World Resorts Cook Islands Avarua  Weather

Avarua  weather in September

Weather in Avarua : September

Average day temperature: 75.3°F
Average night temperature: 73.4°F
Sea water temperature: 76.2°F
Number of sunny days: 5 days
Day length: 11.7 - 12.3 hours
Number of rainy days: 3 days
Precipitation totals: 1.8 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 75°F. At the same time the lowest night temperature was 69°F. Daily and nightly averages during September were 72.6°F and 72.2°F.

Sea water temperature in Avarua  in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 76.6°F. The highest and lowest sea temperatures during the month were 77.7°F and 75.0°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Avarua  in September is 1.5 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 15.8 mph It makes September one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 4.4.

Best time for vacation in Avarua 

Sunniest months:
July 5 days
September 5 days
August 5 days
Warmest months:
March 83.5 °F
February 83.0 °F
January 82.2 °F
Warmest sea temp:
March 82.2 °F
February 81.9 °F
April 81.5 °F
Coldest months:
August 74.9 °F
September 75.3 °F
October 75.9 °F
Rainiest months:
March 11 days
February 9 days
January 8 days
Windiest months:
October 15.8 mph
May 15.4 mph
September 15.3 mph

Avarua  on a weather map

Avarua 
+81°F
W 13 mph
Feels like: +86°F
Precip.: 0%
Places in Cook Islands:
Name
°F
+81°F
24 Hours Forecast
Avarua 
Local time: 20:08
February 05, thursday
2100
81°F
W
13 mph
February 06, friday
0000
81°F
W
11 mph
0300
81°F
W
8 mph
0600
79°F
NW
11 mph
0900
81°F
NW
9 mph
1200
81°F
NW
9 mph
1500
81°F
NW
9 mph
1800
81°F
NW
11 mph
Units of measurement: °C / °F