Rabaul Weather in January

January in Rabaul 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 Rabaul in January

As part of the rainy season, Rabaul sees around 22 days of rain in January, with an average of 309 mm (12 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.

Temperature in Rabaul in January

Daytime temperatures in Rabaul reach 29°C (84°F) in January, dropping to 26°C (79°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

Sunshine in Rabaul in January

Expect a lot of sunshine this month, with about 195 hours of sun. Showers typically arrive in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, there's plenty of sunshine for sightseeing.

Wind Speed in Rabaul in January

Wind speeds average 4 m/s (8 knots) during January. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in January

With water at 29°C (84°F), conditions are warm and calm. Perfect for those who like tropical water temperatures, though it won't cool you down much.

January in Rabaul 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.

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For a detailed overview over the year and the best time to visit Papua New Guinea, check out our Rabaul's climate page.

Rabaul Temperature in January

Min Temperature 26°C (79°F)  

Max Temperature 29°C (84°F)  

Water Temperature 29°C (84°F)  

Chance of Rain 73%  

Precipitation 309 mm (12 in)  

Rainy days 22 days  

Humidity 77%  

Windspeed 4 m/s (8 knots)  

Sunshine 195 hours  

Percentage Sunshine  

Daily Historical Temperatures

41-year average (1976-2026)

Based on our historical records, temperatures in Rabaul typically stay consistent throughout January, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 26°C (79°F).

Average temperatures in January

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Historical weather for Rabaul in January

Browse day-by-day weather records for Rabaul 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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Rabaul historical weather extremes in January

According to our 19 years of weather records for Rabaul, the following extremes were recorded between 2006 and 2025.

• The warmest day in January was on January 18, 2021, with a maximum of 33°C (91°F).
• Rabaul experienced its chilliest January day on January 28, 2014, reaching only 26°C (79°F).
• The lowest overnight temperature recorded in January was 24°C (75°F) (January 22, 2010).
• The wettest day in January Rabaul was on January 19, 2022 with 104 mm (4.1 in) of precipitation.

What to Wear in Rabaul 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! With water temperatures around 29°C (84°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Rabaul 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 Papua New Guinea, check out our Rabaul's climate page.

More climate data for Rabaul

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Rabaul climate overview or explore weather in Papua New Guinea.