Arutanga Weather in January
January in Arutanga typically sees daytime highs of 29°C (84°F) and nighttime lows of 26°C (79°F). As the wettest month of the year, expect more rainfall than other months.
Rainfall in Arutanga in January
As part of the rainy season, Arutanga sees around 13 days of rain in January, with an average of 268 mm (11 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.
Temperature in Arutanga in January
Daytime highs in Arutanga in January reach 29°C (84°F), with nights around 26°C (79°F). This kind of day-to-night contrast is typical for this time of year. With lows around 26°C (79°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Arutanga in January
The area enjoys a balanced 186 hours of sunlight, ensuring it's neither too rainy nor too sunny.
Wind Speed in Arutanga in January
Average wind conditions reach 5 m/s (10 knots) in January. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.January in Arutanga 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Cook Islands, check out our Arutanga's climate page.
Arutanga Temperature in January
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Chance of Rain
44%
Precipitation
268 mm (11 in)
Rainy days
13 days
Windspeed
5 m/s (10 knots) *
Sunshine
186 hours *
Percentage Sunshine
*
Daily Historical Temperatures
44-year average (1976-2026)
Based on our historical records, temperatures in Arutanga typically stay consistent throughout January, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in January
Historical weather for Arutanga in January
Browse day-by-day weather records for Arutanga spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Arutanga historical weather extremes in January
Our historical data for Arutanga spans 2006 to 2025, revealing these weather extremes.
- The warmest day in January was on January 19, 2009, with a maximum of 31°C (88°F).
- The coldest January day was on January 14, 2023, with a maximum of 25°C (77°F).
- Nighttime temperatures dropped to 21°C (70°F) on January 16, 2025, marking the coldest January night on record.
- The wettest January day on record brought 102 mm (4 in) of precipitation to Arutanga (January 22, 2009).
Best Places in the Cook Islands in January
Find out more about the weather in the Cook Islands and which places have the best travel conditions in this month. See all of the Cook Islands in January →
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What to Wear in Arutanga in January
Warm but pleasant conditions in Arutanga 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Arutanga in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Cook Islands, check out our Arutanga's climate page.
Temperature Rainfall Sunshine Wind Speed
See the full Arutanga climate overview or explore weather in the Cook Islands.
