Climate Insights for Barishal

The climate in Barishal is cold. The average annual temperature is -11°C and approximately 870mm of precipitation falls per year. Barishal receives a notable amount of rainfall throughout the year, including during its driest month. Barishal is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are December, January, February, when temperatures can drop to -29°C. Barishal experiences heavy snowfall, typically from January through December.

Barishal has a wide annual temperature range, spanning 40°C from the coldest to warmest months. August is the warmest month, though highs remain moderate at 11°C with a mean of 6°C. December brings the harshest conditions, with lows dropping to -29°C and an average temperature of -23°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 13°C shift in average temperatures.

Barishal is a moderately rainy area, receiving approximately 870mm of precipitation annually, which averages out to around 72mm per month. The wettest month is August, averaging 113mm of rainfall. March and April also tend to see above-average precipitation. The driest month is December, with just 46mm. That's 67mm less than August, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Barishal receives heavy snowfall, accumulating around 686cm annually from January through December. The snowiest month is March, with approximately 94cm. Winter travel should account for significant snow cover.

Barishal is relatively calm, with an average annual wind speed of 0km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 0km/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.

It is currently summer in Barishal, which began on June 21, 2026. Barishal 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 August at around 11°C, while the coldest stretch bottoms out in December near -29°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The table below shows monthly climate averages for Barishal 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.