Climate Overview
The climate in Bonga is temperate. The average annual temperature is 18°C and approximately 2922mm of precipitation falls per year. Bonga receives a notable amount of rainfall throughout the year, including during its driest month. Bonga sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Bonga sees moderate temperature variation throughout the year, ranging from 11°C to 26°C. The warmest month is February, when average highs reach 26°C and the mean temperature sits around 19°C. December is the coolest month, with minimum temperatures around 11°C and an average of 18°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs.
Precipitation
Bonga is a very wet location, receiving approximately 2922mm of precipitation annually, which averages out to around 244mm per month. The wettest month is October, averaging 441mm of rainfall. April and May also tend to see above-average precipitation. The driest month is January, with just 66mm. That's 375mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Bonga is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
7 days until Autumn
It is currently summer in Bonga, which began on June 21, 2026. Bonga sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in February at around 26°C, while the coldest stretch bottoms out in December near 11°C. Autumn is next, beginning on September 23, 2026 (7 days from now).
Spring
Temperatures range from 14 to 26°C. Rainfall is heavy, totalling around 988mm across the season with a monthly average of 329mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 13 to 22°C. Rainfall is heavy, totalling around 672mm across the season with a monthly average of 224mm. Winds are generally light, averaging 3km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 12 to 24°C. Rainfall is heavy, totalling around 988mm across the season with a monthly average of 329mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 11 to 26°C. Precipitation is moderate at around 274mm for the season, averaging 91mm per month. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Bonga is during January and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 81mm per month. By contrast, February can be uncomfortably hot with temperatures reaching 26°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Bonga 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.