Bangladesh Climate – June 2026 Update
Top 5 Cities: Dhaka, Chittagong, Khulna, Rajshahi, and Sylhet
This month in numbers
Bangladesh experienced its 11th warmest June on record, with an average temperature of 29.15°C, marking an anomaly of +1.1°C above the 1961–1990 baseline. Globally, June 2026 was the 3rd warmest on record for land temperatures, with an anomaly of +1°C. The April–June 2026 period in Bangladesh also ranked as the 16th warmest on record, with an average temperature of 28.68°C, an anomaly of +0.7°C.
What changed
The past three months (April–June 2026) have seen Bangladesh record its 16th warmest such period since records began in 1941. This trend aligns with the broader global picture, as global land temperatures for the same period ranked as the 2nd warmest on record. Bangladesh's 1-month anomaly for June was 0.49°C cooler than the average for the Asia group, placing it 133rd out of 234 regions globally.
What’s driving change?
The current weak El Niño, with a NOAA ONI 3-month anomaly of +0.98°C, is a significant factor influencing Bangladesh's climate. El Niño typically brings warmer and drier conditions to India and the surrounding region, often leading to a weaker southwest summer monsoon and increased drought risk. Indeed, Bangladesh experienced heatwaves in June, with four deaths reported due to suspected heatstroke. The Bangladesh Meteorological Department had forecast above-normal day and night temperatures and below-normal rainfall for June, along with the possibility of mild to moderate heatwaves. This aligns with historical patterns where approximately 60% of all-India droughts since 1900 have occurred during El Niño years. Furthermore, pre-monsoon flash floods in May devastated the haor wetlands, destroying thousands of hectares of Boro rice due to unseasonal heavy rainfall and upstream water flows. As of early July, heavy monsoon rains have also triggered deadly landslides in southeastern Bangladesh, particularly in the hilly Cox's Bazar district, resulting in at least 30 fatalities, including Rohingya refugees.
Looking ahead
The current El Niño is highly likely to continue through early 2027, with forecasts predicting it will reach peak intensity between December and February, suggesting a continued risk of warmer and potentially drier conditions for Bangladesh in the coming months.
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
Year-on-Year Trends
The 4byo Climate Helix – Bangladesh
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Bangladesh – Monthly Temperature – All Years
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Records – Bangladesh
Our World in Data / NOAA - Anomalies vs 1901-2000 mean
Shifting Seasons
Warm/cold + wet/dryKöppen Am · TropicalBangladesh has both a clear warm/cold cycle (±4.7°C) and a wet/dry cycle (114× wet:dry ratio). Both sides of the annual rhythm are shown below.
Monthly rainfall climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Jun (-189 mm, -36%).
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Rainfall & Precipitation
Rainfall & Rain Days – Totals
Headline: anomaly vs the 1961–1990 mean. Small figure: the actual value. Rank: position in the full record (1st = highest ever). Record: highest (or lowest) value on record with its year.
Climate Systems
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Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for Bangladesh
Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) - see the Methodology & Sources page for the complete dataset list and update calendar.
FAQs
FAQs
How is the climate in Bangladesh changing?
Bangladesh is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The headline panel also shows the long-term trend rate per decade and the warmest and coolest years on file.
Where does the climate data for Bangladesh come from?
Climate data for Bangladesh comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.
What is the climate baseline used on this page?
Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.
Which areas does the Bangladesh climate data cover?
The Bangladesh climate profile covers Dhaka, Chittagong, Khulna, Rajshahi and surrounding areas. Temperature, rainfall and emissions data for Bangladesh
How often is the Bangladesh climate update refreshed?
The Bangladesh climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.