Avarua Weather in January

With daytime temperatures of 28°C (82°F) and nighttime lows of 25°C (77°F), January in Avarua brings high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Avarua in January

As part of the rainy season, Avarua sees around 13 days of rain in January, with an average of 225 mm (8.9 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours.

Temperature in Avarua in January

In January, Avarua sees high temperatures, with highs of 28°C (82°F). Nights drop to around 25°C (77°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows around 25°C (77°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in Avarua in January

You can expect a moderate amount of sunlight, with approximately 167 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

Wind Speed in Avarua in January

January sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

January in Avarua has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the Cook Islands, check out our Avarua's climate page.

Avarua Temperature in January

Min Temperature 25°C (77°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 44%  

Precipitation 225 mm (8.9 in)  

Rainy days 13 days  

Humidity 85% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 167 hours *  

Percentage Sunshine *  

* Data from: Rarotonga, the Cook Islands (4 KM, 3 Miles).

Daily Historical Temperatures

51-year average (1976-2026)

Based on our historical records, temperatures in Avarua typically stay consistent throughout January, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 24°C (75°F).

Average temperatures in January

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Daily Historical Precipitation

51-year average (1976-2026)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in January

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‹ January February March April May June July August September October November December ›

Historical weather for Avarua in January

Browse day-by-day weather records for Avarua spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Avarua historical weather extremes in January

Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in Avarua.

• The warmest day in January was on January 10, 2018, with a maximum of 33°C (91°F).
• The coldest January day was on January 4, 2008, with a maximum of 24°C (75°F).
• The lowest overnight temperature recorded in January was 19°C (66°F) (January 14, 2023).
• The wettest January day on record brought 131 mm (5.2 in) of precipitation to Avarua (January 21, 2008).

What to Wear in Avarua in January

Warm but pleasant conditions in Avarua in January. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Avarua in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the Cook Islands, check out our Avarua's climate page.

More climate data for Avarua

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Avarua climate overview or explore weather in the Cook Islands.