Rabaul weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Good
Best time to visit: January – December
What is the weather like in Rabaul in January?
In January, Rabaul is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 29.9 °C – almost as warm as a bath. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 317 mm. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is a good month for a holiday in Rabaul.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 66 | 65 | 65 |
| Day | 29° | 29° | 29° |
| Night | 24° | 24° | 24° |
| Sea | 30° | 30° | 30° |
| Sun | 5 h | 5 h | 4 h |
| Rain days | 28 | 28 | 26 |
More details for January
- Daylight
- 12 h 20 min05:50 – 18:10
- UV index
- 13 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 86 %on averageAll months
- Hot days
- 6 days30 °C or moreAll months
- Time zone
- UTC+10Pacific/Port_Moresby
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %27 %
- Few rainy daysweight 20 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in January
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Rabaul in January: quick answers
Is Rabaul hot in January?
Yes. In January, Rabaul is hot: daytime highs average 29 °C and nights stay around 24 °C. On about 6 days the thermometer climbs to 30 °C or more.
Can you swim in Rabaul in January?
Yes. In January the sea averages 29.9 °C – almost as warm as a bath.
Does it rain much in Rabaul in January?
It rains often – on about 28 days, adding up to 317 mm.
Rabaul month by month
The whole year in RabaulAll destinations: Papua New GuineaWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences