The climate in Bangladesh
Average daytime and nighttime temperaturesAll climate diagrams on this page result from the collected data of 18 weather stations.
Weather stations at an altitude above 1300m have not been included.
All data correspond to the average monthly values of the last 20 years.
Back to overview: Bangladesh
Climate zone: The northern parts of Bangladesh are in the subtropics, the southern regions in the tropics.
The climate in Bangladesh is very warm, with an annual average of 30 degrees, but has few truly tropical and sultry months. It is yearlong warm or hot. The warmest and rainiest part of the country is Khulna. The coldest is Sylhet. Dued to the lesser rain the best time for traveling is from November to March. Most precipitation decrease from May to September.
The climate in Bangladesh is very warm, with an annual average of 30 degrees, but has few truly tropical and sultry months. It is yearlong warm or hot. The warmest and rainiest part of the country is Khulna. The coldest is Sylhet. Dued to the lesser rain the best time for traveling is from November to March. Most precipitation decrease from May to September.
Hours of sunshine per day

Rainy days per month

Precipitation in mm/day

Relative humidity in %

Absolute humidity in g/m³

Climate charts for other country parts in Bangladesh
Temperature records of the last 75 years
The hottest temperature measured from 1947 to December 2022 was reported by the Chittagong Airp weather station. In August 2020 the record temperature of 39.5 °C was reported here. The hottest summer from July to September, based on all 16 weather stations in Bangladesh below 1300 metres altitude, was recorded in 1978 with an average temperature of 29.2 °C. This average temperature will normally be measured every 4 to 6 hours, thus also including the nights. Normally, this value is 28.4 degrees Celsius.The coldest day in these 75 years was reported by the weather station Ishwardi. Here the temperature dropped to 14.2 °C in March 2020. Ishwardi lies at an altitude of 14 meters above sea level. The coldest winter (January to March) was in 1989 with an average temperature of 18.2 °C. In Bangladesh, it is usual to have about 3.3 degrees more at 21.5 °C for this three-month period.
The most precipitation fell in July 1954. With 61.3 mm per day, the Saidpur weather station recorded the highest monthly average of the last 75 years. Incidentally, the region with the most rainfall for the whole year is around Sylhet. The driest region is near Ishwardi.