Climate Overview
The climate in Bana is warm and mild. The average annual temperature is 21°C and approximately 2658mm of precipitation falls per year. September is the wettest month, receiving around 384mm of rainfall. Bana sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Bana sees moderate temperature variation throughout the year, ranging from 15°C to 31°C. The warmest month is February, when average highs reach 31°C and the mean temperature sits around 23°C. January is the coolest month, with minimum temperatures around 15°C and an average of 22°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.
Precipitation
Bana is a very wet location, receiving approximately 2658mm of precipitation annually, which averages out to around 221mm per month. The wettest month is September, averaging 384mm of rainfall. July and August also tend to see above-average precipitation. The driest month is December, with just 19mm. That's 365mm less than September, 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
Bana is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
92 days until Autumn
It is currently summer in Bana, which began on June 21, 2026. Bana 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 31°C, while the coldest stretch bottoms out in January near 15°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.
Spring
Temperatures range from 18 to 29°C. Rainfall is heavy, totalling around 774mm across the season with a monthly average of 258mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 17 to 25°C. Rainfall is heavy, totalling around 983mm across the season with a monthly average of 328mm. Winds are generally light, averaging 1km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 16 to 27°C. Rainfall is heavy, totalling around 807mm across the season with a monthly average of 269mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 15 to 31°C. Rainfall is relatively light, with around 94mm over the season and a monthly average of 31mm. Winds are generally light, averaging 2km/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 Bana is during January, February, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 47mm per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Bana 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.
