Avarua District
Cook Islands
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Avarua District, Cook Islands

Aerial view of the coastal Avarua District in the Cook Islands, with clear calm waters and mountains
Aerial view of the coastal Avarua District in the Cook Islands, with clear calm waters and mountains
January, like December, in Avarua District, Cook Islands, is a moderately hot summer month, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 28°C (82.4°F).

Temperature

In Avarua District, the average high-temperature in January remains the same as in December - a still warm 28°C (82.4°F). In Avarua District, the average low-temperature is 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 (10.5") of precipitation.

Sea temperature

In January, the average sea temperature is 27.7°C (81.9°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Avarua District, the average length of the day in January is 13.2h.

Sunshine

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

UV index

Months with the highest UV index in Avarua District, Cook Islands, 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 extreme threat to health from the exposure to the Sun's UV radiation for average individuals.
The daily maximum UV index of 12 in January interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in January in Avarua District?

In Avarua District, in January, the average high-temperature is 28°C (82.4°F), and the average low-temperature is 23°C (73.4°F).

How much does it rain in Avarua District in January?

In Avarua District, Cook Islands, in January, it is raining for 17 days, with typically 267mm (10.5") of accumulated precipitation.

What is the rainiest month in Avarua District?

The month with the most rainfall in Avarua District is January when the rain falls for 17 days and typically aggregates up to 267mm (10.5") of precipitation.

What is the water temperature in January in Avarua District?

In January, the average sea temperature in Avarua District is 27.7°C (81.9°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in January in Avarua District?

In Avarua District, Cook Islands, the average length of the day in January is 13.2h.

What is the month with the most sunshine in Avarua District?

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

How many hours of sunshine does Avarua District have in January?

In January, the average sunshine in Avarua District is 17h.

What is the month with the highest UV index in Avarua District?

January through March, October through December, with an average maximum UV index of 12, are months with the highest UV index in Avarua District.

What is the UV index intensity in January in Avarua District?

In Avarua District, the average daily maximum UV index in January is 12. A UV Index reading of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in January - Avarua District, Cook Islands
  • Average high temperature in January: 28°C

Warmest months (with the highest average high temperature) are February and March (29°C).
Months with the lowest average high temperature are July and August (25°C).

  • Average low temperature in January: 23°C

Months with the highest average low temperature are January, February and March (23°C).
Coldest months (with the lowest average low temperature) are July, August and September (19°C).

Average rainfall in January - Avarua District, Cook Islands
  • Average rainfall in January: 267mm

The wettest month (with the highest rainfall) is January (267mm).
The driest month (with the lowest rainfall) is July (102mm).

Average rainfall days in January - Avarua District, Cook Islands
  • Average rainfall days in January: 17 days

Months with the highest number of rainy days are January, February and March (17 days).
The month with the lowest number of rainy days is August (3 days).

Average sea temperature in January - Avarua District, Cook Islands
  • Average sea temperature in January: 27.7°C

The best month for swimming (with the highest average sea temperature) is February (27.8°C).
Coldest months (with the lowest average sea temperature) are August and September (24.5°C).

Average daylight in January / Average sunshine in January - Avarua District, Cook Islands
  • Average daylight in January: 13.2h

The month with the longest days is December (Average daylight: 13.4h).
The month with shortest days is June (Average daylight: 10.9h).

  • Average sunshine in January: 17h

Months with most sunshine are January, February and March (Average sunshine: 17h).
The month with least sunshine is August (Average sunshine: 3h).

Average UV index in January - Avarua District, Cook Islands
  • Average UV index in January: 12

Months with the highest UV index are January, February, March, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 6).