Climate Insights for Rabaul

The climate in Rabaul is hot. The average annual temperature is 27°C and approximately 2,788 mm of precipitation falls per year. Rabaul receives a notable amount of rainfall throughout the year, including during its driest month. Rabaul sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in Rabaul is hot. The average annual temperature is 81°F and approximately 109.8 in of precipitation falls per year. Rabaul receives a notable amount of rainfall throughout the year, including during its driest month. Rabaul sits near the equator, so seasonal temperature differences are minimal throughout the year.

Rabaul has relatively stable temperatures year-round, staying within a 3°C range. The warmest month is January, when average highs reach 29°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 26°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.Rabaul has relatively stable temperatures year-round, staying within a 5°F range. The warmest month is January, when average highs reach 84°F and the mean temperature sits around 81°F. August is the coolest month, with minimum temperatures around 79°F and an average of 80°F. Daily temperature variation is modest, with an average difference of 4°F between highs and lows.

Rabaul is a very wet location, receiving approximately 2,788 mm of precipitation annually, which averages out to around 232 mm per month. The wettest month is March, averaging 342 mm of rainfall. December and April also tend to see above-average precipitation. The driest month is June, with just 124 mm. That's 218 mm less than March, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.Rabaul is a very wet location, receiving approximately 109.8 in of precipitation annually, which averages out to around 9.1 in per month. The wettest month is March, averaging 13.5 in of rainfall. December and April also tend to see above-average precipitation. The driest month is June, with just 4.9 in. That's 8.6 in less than March, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Rabaul is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 8km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 14km/h in winter, 11km/h in spring, 10km/h in summer, 8km/h in autumn.Rabaul is mildly breezy, with an average annual wind speed of 7mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is August, averaging 9mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in April, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 5mph difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 9mph in winter, 7mph in spring, 6mph in summer, 5mph in autumn.

The table below shows monthly climate averages for Rabaul based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Rabaul based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.