January weather forecast
Avarua District, Cook Islands

January in Avarua District, Cook Islands holds moderate humidity and high temperatures. With an average temperature fluctuating between 23°C (73.4°F) to 28°C (82.4°F), the hot weather conditions are further enhanced by an impressive 17 hours of sunshine. Sudden showers are common with 17 days of rainfall to anticipate. Sea temperatures remain warm and inviting for watersports. This is the perfect month to soak up the sun or take a refreshing dip in the sea.

Temperature

Avarua District's average high-temperature undergoes a slight change with the dawn of January, equating to the readings of December. Avarua District, during the nights of January, averages a temperature close to its daytime high, at a still warm 23°C (73.4°F).

Rainfall

The month with the most rainfall in Avarua District is January, when the rain falls for 17 days and typically aggregates up to 267mm (10.51") of precipitation.

Sea temperature

In Avarua District, in January, the average water temperature is 27.7°C (81.9°F).
Note: Ideal surface water temperatures for any water activity fall between 25°C (77°F) and 29°C (84.2°F), offering maximum enjoyment for lengthened periods.

Daylight

The average length of the day in January is 13h and 15min.
On the first day of the month, sunrise is at 06:00 and sunset at 19:24. On the last day of January, sunrise is at 06:20 and sunset at 19:24 -10.

Sunshine

January through March, with an average of 17h of sunshine, are months with the most sunshine in Avarua District.

UV index

The months with the highest UV index are January through March, October through December, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an excessive health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 12 in January translates into the following recommendations:
Put into effect every precaution of importance, unprotected skin and eyes may get burns swiftly. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Use liberally and reapply a broad-spectrum sunscreen with at least SPF 30 every two hours and right after outdoor activities or a swim. Alert! The Sun's UV rays are heightened by the reflection of sand and water.