Weather in The Cook Islands in January

The weather in January is marginally warmer than the previous month and temperatures continue to rise slightly into February. The average maximum temperature in The Cook Islands in January is 29°C (84°F). The average maximum temperature is 28°C (83°F) in the previous month and 29°C (85°F) in the next month.

The average temperature in The Cook Islands in January is 27°C (80°F). The average temperature is 26°C (78°F) in the previous month and 27°C (80°F) in the next month.

The average minimum temperature in The Cook Islands in January is 24°C (76°F). The minimum temperature is 23°C (74°F) in the previous month and 24°C (76°F) in the next month.

The days in January are marginally shorter than the previous month and days continue to get marginally shorter into February. January has slightly less hours of sunshine than the previous month. During January the average day light hours are 13.3 per day in The Cook Islands. The sunshine percentage is 48% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day.

The ultraviolet index in The Cook Islands in January is typically 15.7 during January. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.