Climate Insights for Bonan

The climate in Bonan is temperate. The average annual temperature is 15°C and approximately 1162mm of precipitation falls per year. August is the wettest month, receiving around 247mm of rainfall. Bonan is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, August, May. The coldest months are January, December, February, when temperatures can drop to 1°C.

Temperatures in Bonan vary considerably across the year, with a 24°C difference between the coldest and warmest months. The warmest month is June, when average highs reach 25°C and the mean temperature sits around 21°C. January is the coolest month, with minimum temperatures around 1°C and an average of 8°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Bonan is a moderately rainy area, receiving approximately 1162mm of precipitation annually, which averages out to around 97mm per month. The wettest month is August, averaging 247mm of rainfall. July and September also tend to see above-average precipitation. The driest month is December, with just 19mm. That's 228mm less than August, 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.

Bonan is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, 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 9km/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 11km/h in winter, 14km/h in spring, 8km/h in summer, 7km/h in autumn.

It is currently spring in Bonan, which began on March 20, 2026. Bonan is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in June at around 25°C, while the coldest stretch bottoms out in January near 1°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Bonan is during April and May, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 65mm per month. By contrast, June can be uncomfortably hot with highs reaching 25°C, while January is the coldest period with lows dropping to 1°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Bonan 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.