Bileća climate — normals and trends
Bileća (Bosnia and Herzegovina) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.8 °C and it receives 1,630 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 (18.6 °C on average) and the coldest is January (-1.0 °C). Rainfall peaks in November.
Bileća averages 102 frost days, 5 hot days (≥ 30 °C) and 147 rainy days per year.
Bileća has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 124 to 80 per year over the period.
The hottest day of the period reached 35.6 °C (on 10 August 2017) and the coldest -28.6 °C (on 30 December 1941).
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
BilećaRepublika Srpska
- coords
- 42.88°, 18.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.8°C
Average daily high
13.6°C
Average daily low
4.4°C
Annual rainfall
1,630mm
Sunshine / day
9.3h
Mean relative humidity
75%
Average peak wind
12.4km/h
Seasonal range
19.6°C
Frost days (< 0 °C)
102 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
147 d/yr
Annual snowfall
176.2 cm
Average feels-like high
11.8 °C
Average feels-like low
2.0 °C
Average peak gust
35.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.62 · 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
35.6 °C
10 August 2017
Coldest day
-28.6 °C
30 December 1941
Wettest day
114 mm
6 October 1992
Windiest day
39.5 km/h
23 February 2019
Strongest gust
122.0 km/h
18 November 1975
Hottest feels-like
36.9 °C
12 August 2019
Coldest feels-like
-33.7 °C
30 December 1941
Snowiest day
45.3 cm
6 January 1967
Sunniest day
14.8 h
14 June 2012
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 | 6.6 °C | +3.9 °C | 130 mm | -22 mm |
| Feb | 6.8 °C | +2.5 °C | 83 mm | -75 mm |
| Mar | 11.5 °C | +3.7 °C | 324 mm | +181 mm |
| Apr | 14.8 °C | +2.3 °C | 82 mm | -62 mm |
| May | 17.6 °C | +0.3 °C | 112 mm | -15 mm |
| Jun | 27.8 °C | +6.6 °C | 9 mm | -87 mm |
| Jul | 27.7 °C | +3.6 °C | 99 mm | +38 mm |
| Aug | 26.7 °C | +2.2 °C | 94 mm | +30 mm |
| Sep | 22.8 °C | +2.6 °C | 169 mm | +52 mm |
| Oct | 13.7 °C | -1.3 °C | 106 mm | -61 mm |
| Nov | 10.7 °C | +1.7 °C | 298 mm | +78 mm |
| Dec | 7.2 °C | +2.9 °C | 46 mm | -137 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 Bileća?
Bileća has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.8 °C and it receives 1,630 mm of precipitation per year.
What is the hottest day ever recorded in Bileća?
The hottest day measured in Bileća between 1940 and 2025 was 10 August 2017, reaching 35.6 °C.
What is the coldest day in Bileća?
The coldest day measured in Bileća between 1940 and 2025 was 30 December 1941, at -28.6 °C.
Does it snow in Bileća?
Yes. Bileća gets on average 176.2 cm of snow per year and has around 102 frost days.
Has the climate of Bileća warmed?
Yes: Bileća warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bileća?
The wettest day measured in Bileća between 1940 and 2025 was 6 October 1992, with 114 mm of rain in 24 hours.
What was the windiest day in Bileća?
The windiest day measured in Bileća between 1940 and 2025 was 23 February 2019, with winds reaching 39.5 km/h.
What is the warmest month in Bileća?
The warmest month in Bileća is July (18.6 °C on average); the coldest is January (-1.0 °C).
How much does it rain in Bileća?
Bileća receives on average 1,630 mm of precipitation per year, spread over about 147 rainy days.
Is it sunny in Bileća?
Bileća 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 Bileća?
The heaviest 24-hour snowfall measured in Bileća between 1940 and 2025 was 6 January 1967, with 45.3 cm.
Are there tropical nights in Bileća?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Bileća.
What was the most extreme apparent temperature in Bileća?
In Bileća, between 1940 and 2025, the highest apparent temperature reached 36.9 °C on 12 August 2019, and the lowest was -33.7 °C on 30 December 1941.
Compare Bileća with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bileća