Bangladesh Climate
Top 5 Cities: Dhaka, Chittagong, Khulna, Rajshahi, and Sylhet
This month in numbers
April 2026 saw Bangladesh's average temperature at 28.18°C, an anomaly of +0.4°C compared to the 1961–1990 baseline, ranking it the 34th warmest April in 86 years of records. Globally, April was the 2nd warmest on record for land temperatures, with an anomaly of +1.1°C. The three-month period from February to April 2026 recorded an average temperature of 25.47°C, an anomaly of +0.7°C, making it the 20th warmest such period on record.
What changed
Bangladesh experienced a warmer-than-average start to the year, with February, March, and April all showing positive temperature anomalies. The country's three-month anomaly of +0.7°C places it 217th out of 234 regions globally for warming, indicating that while warmer, it is not among the most rapidly warming areas worldwide. In contrast, the global land temperature for the same three-month period ranked as the 2nd warmest on record, highlighting a broader trend of significant global warming.
What’s driving change?
The current climate in Bangladesh is influenced by a Neutral ENSO state, with a weekly Niño 3.4 SST anomaly of +0.9°C as of April 29, 2026. However, forecasts indicate a strong likelihood of an El Niño developing, with a 61% chance for May-July and an 87% chance for July-September. El Niño events typically bring warmer and drier conditions to India and surrounding regions like Bangladesh, often leading to a weaker southwest summer monsoon and an increased risk of heatwaves and drought. Indeed, Bangladesh experienced an intense heatwave in mid-April, with temperatures significantly higher than normal across South Asia. Additionally, April saw above-normal rainfall, with a 75% excess, and severe thunderstorms on April 26, which tragically resulted in at least 14 lightning-related fatalities across seven districts. Heavy to very heavy rainfall also led to anticipated flash floods in the northeastern haor basin towards the end of April, threatening livelihoods and food security.
Looking ahead
With a strong El Niño phase forecast to develop and persist through the end of the year, Bangladesh is likely to experience a weaker and drier monsoon season, alongside further heatwaves in the coming months, which could impact agriculture and water availability.
Generated by Gemini from climate data and web sources
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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 trend rate is shown as °C per decade in the headline panel; you can also see 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.