4 Billion Years On

Bosnia and Herzegovina Climate

Top 5 Cities: Sarajevo, Banja Luka, Tuzla, Zenica, and Mostar

This month in numbers

Bosnia and Herzegovina experienced its 10th warmest April on record in 2026, with an average temperature of 11.53°C, a significant 2.7°C above the 1961–1990 baseline. Globally, April 2026 was the 2nd warmest April for land temperatures on record.

What changed

The period of February to April 2026 was the 5th warmest on record for Bosnia and Herzegovina, with an average temperature of 7.45°C, a substantial 2.9°C above the long-term average. This trend aligns with the broader national picture, as Bosnia and Herzegovina's latest full-year average temperature in 2025 was the warmest on record at 12.72°C. The country also ranked 10th globally for its 12-month rolling anomaly, indicating a sustained period of elevated temperatures.

What’s driving change?

The persistent warmth in Bosnia and Herzegovina is influenced by a combination of factors. The global land temperature for February–April 2026 was the 2nd warmest on record, indicating a widespread warming trend. Regionally, Bosnia and Herzegovina experienced extreme weather events earlier in the year, including heavy snowfall and intense rainfall in January and March 2026, which led to floods and power outages across the country. The current ENSO state is Neutral, with a strong probability of transitioning to El Niño by May-July 2026, which typically brings warmer and drier conditions to the region in the coming months ENSO tracker.

Looking ahead

The NOAA CPC forecast suggests a strong likelihood of El Niño developing by May-July 2026, which could lead to warmer and drier conditions in Bosnia and Herzegovina in the coming months.

Generated by Gemini from climate data and web sources

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Data Sources

Data Sources for Bosnia and Herzegovina

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 Bosnia and Herzegovina changing?

Bosnia and Herzegovina 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 Bosnia and Herzegovina come from?

Climate data for Bosnia and Herzegovina 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 Bosnia and Herzegovina climate data cover?

The Bosnia and Herzegovina climate profile covers Sarajevo, Banja Luka, Tuzla, Zenica and surrounding areas. Temperature, rainfall and emissions data for Bosnia and Herzegovina

How often is the Bosnia and Herzegovina climate update refreshed?

The Bosnia and Herzegovina 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.