Temperatures in August
It's warm in August in Cook Islands with an average temperature of 26°C. Temperatures this month range from a low of 25°C to a high of 27°C. At night, you can expect temperatures between 20°C and 22°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Cook Islands in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Cook Islands with warm temperatures, averaging around 26°C during the day and nights close to 21°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-August
By mid-August, the average daytime temperature stays the same at 26°C, with nights close to 21°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
Temperatures vary between day and night, so it’s smart to wear layers.
End of August
By the end of August, the average daytime temperature in Cook Islands will be around 26°C, with nights close to 21°C. A shower might show up, but overall the weather will be dry and sunny.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in August
In August, there is an average of 153 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The average precipitation chance is 30% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Cook Islands. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Cook Islands in August |
UK | ||
|---|---|---|---|
 Average Temperature |
26°C | 22°C | |
 High Temp |
27°C | 24°C | |
| Low Temp |
25°C | 19°C | |
 Total Precipitation |
153 mm | 60 mm | |
| Rainy Days |
9 days | 10 days | |
July
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is August a good time to visit Cook Islands?
After some sun? Then August isn’t the best time to be in Cook Islands. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Cook Islands in August
With 30°C, Cook Islands hit the highest temperature in the last 10 years in August 2023. The lowest daytime temperature in this month was 21°C in 2021. The extreme night temperatures ranged from a low of 14°C to a high of 25°C.
Check out the climate of Cook Islands for all months and discover the best travel time
The climate of Cook Islands is based on weather data from Avarua. Other locations might have different weather. You can check out all destinations in Cook Islands for a full picture of the climate.
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Daily Temperature in August in Cook Islands
This chart shows the average daily temperatures, both day and night, for each day in August in Cook Islands, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in August in Cook Islands
The chart below shows the average daily precipitation in August for Cook Islands, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 9 days of rain in Cook Islands.
Daily UV Index in August in Cook Islands
This chart shows the average daily UV index in August in Cook Islands, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Cook Islands Over the Years
This chart shows the average temperature in August in Cook Islands, measured in degrees Celsius, over the past years.
Total Precipitation in August in Cook Islands Over the Years
This chart shows the average precipitation in August in Cook Islands, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Cook Islands
Click on a specific day in August for detailed info on the typical weather on that day in Cook Islands. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Cook Islands
Have you been to Cook Islands in August?
Share your weather experience in August in Cook Islands.
Average Weather in Cook Islands by Month
Click on a month below to see detailed weather info for Cook Islands. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Cook Islands for all months at once
