Gradačac climate — normals and trends
Gradačac (Bosnia and Herzegovina) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.7 °C and it receives 753 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (22.1 °C on average) and the coldest is January (-0.2 °C). Rainfall peaks in June.
Gradačac averages 73 frost days, 28 hot days (≥ 30 °C) and 120 rainy days per year.
Gradačac has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 92 to 54 per year over the period.
The hottest day of the period reached 40.2 °C (on 19 August 1946) and the coldest -27.4 °C (on 22 January 1940).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
GradačacFederation of Bosnia and Herzegovina
- coords
- 44.88°, 18.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.7°C
Average daily high
16.5°C
Average daily low
7.3°C
Annual rainfall
753mm
Sunshine / day
8.8h
Mean relative humidity
75%
Average peak wind
11.6km/h
Seasonal range
22.3°C
Frost days (< 0 °C)
73 d/yr
Hot days (≥ 30 °C)
28 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
62.6 cm
Average feels-like high
15.4 °C
Average feels-like low
5.4 °C
Average peak gust
26.7 km/h
Tropical nights (≥ 20 °C)
7 d/yr
Solar radiation
13.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.41 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.2 °C
19 August 1946
Coldest day
-27.4 °C
22 January 1940
Wettest day
56 mm
6 September 2001
Windiest day
35.3 km/h
4 July 1982
Strongest gust
81.0 km/h
6 November 1985
Hottest feels-like
43.9 °C
16 July 2024
Coldest feels-like
-32.8 °C
22 January 1940
Snowiest day
23.5 cm
26 February 1955
Sunniest day
14.9 h
21 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 7.4 °C | +4.2 °C | 34 mm | -18 mm |
| Feb | 7.1 °C | +0.7 °C | 37 mm | -14 mm |
| Mar | 15.8 °C | +4.0 °C | 116 mm | +59 mm |
| Apr | 19.7 °C | +2.5 °C | 63 mm | -6 mm |
| May | 21.4 °C | -0.5 °C | 77 mm | -1 mm |
| Jun | 30.4 °C | +4.9 °C | 2 mm | -81 mm |
| Jul | 30.1 °C | +2.5 °C | 47 mm | -25 mm |
| Aug | 30.1 °C | +2.4 °C | 33 mm | -23 mm |
| Sep | 26.4 °C | +3.0 °C | 31 mm | -25 mm |
| Oct | 17.5 °C | 0.0 °C | 50 mm | -0 mm |
| Nov | 11.9 °C | +1.4 °C | 82 mm | +17 mm |
| Dec | 6.3 °C | +1.4 °C | 19 mm | -43 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Gradačac?
Gradačac has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 11.7 °C and it receives 753 mm of precipitation per year.
What is the hottest day ever recorded in Gradačac?
The hottest day measured in Gradačac between 1940 and 2025 was 19 August 1946, reaching 40.2 °C.
What is the coldest day in Gradačac?
The coldest day measured in Gradačac between 1940 and 2025 was 22 January 1940, at -27.4 °C.
Does it snow in Gradačac?
Yes. Gradačac gets on average 62.6 cm of snow per year and has around 73 frost days.
Has the climate of Gradačac warmed?
Yes: Gradačac warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Gradačac?
The wettest day measured in Gradačac between 1940 and 2025 was 6 September 2001, with 56 mm of rain in 24 hours.
What was the windiest day in Gradačac?
The windiest day measured in Gradačac between 1940 and 2025 was 4 July 1982, with winds reaching 35.3 km/h.
What is the warmest month in Gradačac?
The warmest month in Gradačac is July (22.1 °C on average); the coldest is January (-0.2 °C).
How much does it rain in Gradačac?
Gradačac receives on average 753 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Gradačac?
Gradačac gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.
What is the biggest single-day snowfall in Gradačac?
The heaviest 24-hour snowfall measured in Gradačac between 1940 and 2025 was 26 February 1955, with 23.5 cm.
Are there tropical nights in Gradačac?
Yes: Gradačac has on average 7 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Gradačac?
In Gradačac, between 1940 and 2025, the highest apparent temperature reached 43.9 °C on 16 July 2024, and the lowest was -32.8 °C on 22 January 1940.
Compare Gradačac with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Gradačac