DHAKA, September 16, 2026: Climate change added 25 days of risky heat to Bangladesh’s June-August summer this year, with the country experiencing 31 days of temperatures above its local 90th-percentile threshold, according to a new analysis by Climate Central.
The analysis found that Bangladesh’s average temperature during the three-month period was 0.7°C above normal. Temperatures on 54 days were made at least twice as likely by human-caused climate change, as measured by Climate Central’s Climate Shift Index (CSI).
The findings are part of a global analysis showing that climate change added at least 30 risky heat days for around 1.5 billion people worldwide between June and August 2026.
More than one-quarter of the global population experienced a strong influence of climate change on temperatures on any given day during the period.
The impact varied across Bangladesh, with several major cities recording significant numbers of risky heat days and additional heat attributable to climate change.
Rangpur recorded the highest number among the cities analysed, with 50 risky heat days, including 38 linked to climate change. Gazipur experienced 33 risky heat days, of which 26 were added by climate change.
Comilla recorded 30 risky heat days, including 27 attributable to climate change, while Dhaka also recorded 30, with climate change adding 26 days.
Khulna experienced 19 risky heat days, including 14 linked to climate change, while Chattogram recorded 16, with 11 added by climate change.
Rangpur also recorded the highest seasonal temperature anomaly among the cities analysed, at 1.1°C above normal. Gazipur followed with 0.7°C, while Comilla and Dhaka recorded 0.6°C each. Khulna and Chattogram recorded anomalies of 0.4°C each.
The findings highlight the growing influence of human-caused climate change on extreme and potentially hazardous heat conditions in Bangladesh.
