Penrhyn Weather in January
January in Penrhyn brings high temperatures around 29°C (84°F) during the day, dropping to 26°C (79°F) at night, and as part of the rainy season, heavy rainfall is common.
Rainfall in Penrhyn in January
As part of the rainy season, Penrhyn sees around 13 days of rain in January, with an average of 202 mm (8 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 Penrhyn in January
Expect highs of 29°C (84°F) in Penrhyn in January, with nights dropping to around 26°C (79°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Sunshine in Penrhyn in January
The area experiences a moderate amount of sunshine, with approximately 160 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.January in Penrhyn can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options 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 Penrhyn's climate page.
Penrhyn Temperature in January
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Chance of Rain
44%
Precipitation
202 mm (8 in)
Rainy days
13 days
Humidity
82%
Sunshine
160 hours
Percentage Sunshine
Daily Historical Temperatures
45-year average (1976-2026)
Based on our historical records, temperatures in Penrhyn typically stay consistent throughout January, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 27°C (81°F).
Average temperatures in January
Historical weather for Penrhyn in January
Browse day-by-day weather records for Penrhyn spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Penrhyn historical weather extremes in January
The extremes listed below come from historical weather data collected in Penrhyn from 2006 through 2025.
- The warmest day in January was on January 17, 2016, with a maximum of 40°C (104°F).
- The lowest daytime temperature in January was 26°C (79°F), recorded on January 30, 2011.
- Nighttime temperatures dropped to 23°C (73°F) on January 25, 2011, marking the coldest January night on record.
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 →
perfect weather
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tolerable
unpleasant
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What to Wear in Penrhyn in January
Warm temperatures in January make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Penrhyn 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 Penrhyn's climate page.
Temperature Rainfall Sunshine Humidity
See the full Penrhyn climate overview or explore weather in the Cook Islands.
