UV Index
UV Index
Today's UV index in Avarua, Cook Islands 
will be up to 5.4, indicating a moderate level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-06-20
With a UV index reaching up to 5.4 in Avarua, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
The UV index in Avarua, Cook Islands, is typically high year-round, often ranging from 8 to 12, indicating strong sun exposure especially during midday hours. The region experiences strong ultraviolet radiation due to its tropical location.
Avarua has a warm, tropical climate with two main seasons: a wet season from November to April, which brings heavy rain and humidity, and a dry season from May to October, featuring cooler and drier weather. Temperatures remain fairly steady throughout the year.
Compared to nearby islands, Avarua's climate is similar to that of other Cook Islands but generally warmer and wetter than New Zealand. It is more tropical and breezy than larger neighbors like Fiji and Tonga, which have more variation in rainfall and temperature.
See the UV index hour by hour for Avarua, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.