Climate Overview
The climate in Bitung is hot. The average annual temperature is 27°C and approximately 2352mm of precipitation falls per year. Bitung receives a notable amount of rainfall throughout the year, including during its driest month. Bitung sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Bitung has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is November, when average highs reach 30°C and the mean temperature sits around 28°C. August is the coolest month, with minimum temperatures around 25°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows.
Precipitation
Bitung is a very wet location, receiving approximately 2352mm of precipitation annually, which averages out to around 196mm per month. The wettest month is June, averaging 268mm of rainfall. May and January also tend to see above-average precipitation. The driest month is August, with just 128mm. That's 140mm less than June, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Bitung is relatively calm, with an average annual wind speed of 9km/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 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 7km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.
Seasons
3 days until Autumn
It is currently summer in Bitung, which began on June 21, 2026. Bitung sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in November at around 30°C, while the coldest stretch bottoms out in August near 25°C. Autumn is next, beginning on September 23, 2026 (3 days from now).
Spring
Temperatures range from 26 to 30°C. Rainfall is heavy, totalling around 671mm across the season with a monthly average of 224mm. Winds are generally light, averaging 8km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 603mm across the season with a monthly average of 201mm. Winds are generally light, averaging 12km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 473mm across the season with a monthly average of 158mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 605mm across the season with a monthly average of 202mm. Winds are generally light, averaging 10km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Bitung 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.
