Siroki Brijeg climate — normals and trends
Siroki Brijeg (Bosnia and Herzegovina) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.3 °C and it receives 1,893 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 (20.2 °C on average) and the coldest is January (0.3 °C). Rainfall peaks in November.
Siroki Brijeg averages 82 frost days, 10 hot days (≥ 30 °C) and 146 rainy days per year.
Siroki Brijeg has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 105 to 59 per year over the period.
The hottest day of the period reached 36.9 °C (on 10 August 2017) and the coldest -24.5 °C (on 16 February 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
Siroki BrijegFederation of Bosnia and Herzegovina
- coords
- 43.38°, 17.59°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.3°C
Average daily high
14.9°C
Average daily low
5.9°C
Annual rainfall
1,893mm
Sunshine / day
9.3h
Mean relative humidity
75%
Average peak wind
9.8km/h
Seasonal range
19.9°C
Frost days (< 0 °C)
82 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
146 d/yr
Annual snowfall
118.7 cm
Average feels-like high
13.7 °C
Average feels-like low
3.9 °C
Average peak gust
36.2 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
14.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °C
since 1940
+0.4 °C per decade · r² = 0.65 · 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
36.9 °C
10 August 2017
Coldest day
-24.5 °C
16 February 1940
Wettest day
141 mm
2 October 2000
Windiest day
31.5 km/h
5 February 2020
Strongest gust
137.9 km/h
13 December 1957
Hottest feels-like
38.6 °C
18 July 2024
Coldest feels-like
-29.2 °C
16 February 1940
Snowiest day
43.9 cm
11 February 1944
Sunniest day
14.5 h
23 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 | 8.1 °C | +4.2 °C | 161 mm | -12 mm |
| Feb | 8.5 °C | +2.8 °C | 127 mm | -51 mm |
| Mar | 12.9 °C | +3.5 °C | 421 mm | +253 mm |
| Apr | 16.4 °C | +2.5 °C | 99 mm | -63 mm |
| May | 19.3 °C | +0.6 °C | 159 mm | +17 mm |
| Jun | 28.6 °C | +5.9 °C | 5 mm | -95 mm |
| Jul | 28.2 °C | +2.6 °C | 86 mm | +25 mm |
| Aug | 27.4 °C | +1.6 °C | 133 mm | +60 mm |
| Sep | 23.9 °C | +2.5 °C | 120 mm | -17 mm |
| Oct | 15.2 °C | -0.8 °C | 135 mm | -63 mm |
| Nov | 11.6 °C | +1.6 °C | 281 mm | +7 mm |
| Dec | 8.8 °C | +3.4 °C | 70 mm | -157 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 Siroki Brijeg?
Siroki Brijeg has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.3 °C and it receives 1,893 mm of precipitation per year.
What is the hottest day ever recorded in Siroki Brijeg?
The hottest day measured in Siroki Brijeg between 1940 and 2025 was 10 August 2017, reaching 36.9 °C.
What is the coldest day in Siroki Brijeg?
The coldest day measured in Siroki Brijeg between 1940 and 2025 was 16 February 1940, at -24.5 °C.
Does it snow in Siroki Brijeg?
Yes. Siroki Brijeg gets on average 118.7 cm of snow per year and has around 82 frost days.
Has the climate of Siroki Brijeg warmed?
Yes: Siroki Brijeg warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Siroki Brijeg?
The wettest day measured in Siroki Brijeg between 1940 and 2025 was 2 October 2000, with 141 mm of rain in 24 hours.
What was the windiest day in Siroki Brijeg?
The windiest day measured in Siroki Brijeg between 1940 and 2025 was 5 February 2020, with winds reaching 31.5 km/h.
What is the warmest month in Siroki Brijeg?
The warmest month in Siroki Brijeg is July (20.2 °C on average); the coldest is January (0.3 °C).
How much does it rain in Siroki Brijeg?
Siroki Brijeg receives on average 1,893 mm of precipitation per year, spread over about 146 rainy days.
Is it sunny in Siroki Brijeg?
Siroki Brijeg gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Siroki Brijeg?
The heaviest 24-hour snowfall measured in Siroki Brijeg between 1940 and 2025 was 11 February 1944, with 43.9 cm.
Are there tropical nights in Siroki Brijeg?
Yes: Siroki Brijeg has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Siroki Brijeg?
In Siroki Brijeg, between 1940 and 2025, the highest apparent temperature reached 38.6 °C on 18 July 2024, and the lowest was -29.2 °C on 16 February 1940.
Compare Siroki Brijeg with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Siroki Brijeg