Rabaul Weather & Climate: Best Time to Visit

The temperature in Rabaul remains steady throughout the year, providing a consistently comfortable climate. Average daytime temperatures reach a comfortable 30°C (86°F) in November. In August, the coolest month of the year, temperatures drop to a comfortable 29°C (84°F).

At night, temperatures range from around 26°C (79°F) in November to 25°C (77°F) in August.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rabaul has a relatively rainy climate with high precipitation levels, averaging 2778 mm (109 in) of rainfall annually. Rabaul experiences moderate seasonal variation in rainfall, with monthly averages ranging from 325 mm (13 in) in March, the wettest month, and 156 mm (6.1 in) in September, the driest month. For more details, please visit our Rabaul Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Rabaul experiences moderate variation in sunshine hours across the seasons. With 7.0 hours daily sunshine in June, it dips to 4.3 hours in March, offering a balanced mix of sunny and overcast days.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The mean water temperature over the year ranges from 28°C (82°F) in May to 29°C (84°F) in January.

Water temperature over the year

The relative humidity is high throughout the year in Rabaul.

The city experiences its highest humidity in January, reaching 77%. In September, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

The mean wind speed over the year ranges from 2 m/s (4 knots) in April, May, June and October to 4 m/s (8 knots) in January and February. What does this mean?

The mean monthly wind speed over the year (meters per second)