January weather forecast
Avarua District, Cook Islands

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The coastal Avarua District in the Cook Islands, with clear calm waters and mountains
The coastal Avarua District in the Cook Islands, with clear calm waters and mountains

Weather in January

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.

Frequently asked questions

How hot is January in Avarua District?

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

What is the rainiest month in Avarua District?

January is the month with the most rainfall in Avarua District, Cook Islands. Rain falls for 17 days and accumulates 267mm (10.51") of precipitation.

How many days does it rain in January in Avarua District?

In Avarua District, Cook Islands, in January, it is raining for 17 days, with typically 267mm (10.51") of accumulated precipitation.

How warm is the water in January in Avarua District?

In Avarua District, Cook Islands, the average seawater temperature in January 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.

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

In Avarua District, the average day length in January is 13h and 15min.

When are sunrise and sunset in January in Avarua District?

In January, on the first day of the month, sunrise is at 06:00 and sunset at 19:24. On the last day of the month, sunrise is at 06:20 and sunset at 19:24 -10.

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

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

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

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

What are the months 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?

The average daily maximum UV index in January in Avarua District is 12. A UV Index value of 11, and more, symbolizes an ultimate hazard to health from unprotected exposure to UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in January
Avarua District, Cook Islands

Average temperature in January - Avarua District, Cook Islands
  • Average high temperature in January: 28°C

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

  • Average low temperature in January: 23°C

The months with the highest average low temperature are January, February and March (23°C).
The 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 - Avarua District, Cook Islands
  • Average rainfall in January: 267mm

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

Average rainfall days in January
Avarua District, Cook Islands

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

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

Average sea temperature in January
Avarua District, Cook Islands

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).
The 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 / Average sunshine in January - Avarua District, Cook Islands
  • Average daylight in January: 13h and 1min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).

  • Average sunshine in January: 17h

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

Average UV index in January
Avarua District, Cook Islands

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

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

Avarua District, Cook Islands

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