Sisak climate — normals and trends
Sisak (Croatia) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.8 °C and it receives 836 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 (22.3 °C on average) and the coldest is January (0.4 °C). Rainfall peaks in May.
Sisak averages 67 frost days, 28 hot days (≥ 30 °C) and 118 rainy days per year.
Sisak has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 83 to 51 per year over the period.
The hottest day of the period reached 40.3 °C (on 24 August 2012) and the coldest -29.8 °C (on 15 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
SisakSisak-Moslavina County
- coords
- 45.47°, 16.38°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.8°C
Average daily high
16.6°C
Average daily low
7.6°C
Annual rainfall
836mm
Sunshine / day
8.5h
Mean relative humidity
75%
Average peak wind
11.8km/h
Seasonal range
21.9°C
Frost days (< 0 °C)
67 d/yr
Hot days (≥ 30 °C)
28 d/yr
Rainy days (≥ 1 mm)
118 d/yr
Annual snowfall
58.5 cm
Average feels-like high
15.5 °C
Average feels-like low
5.8 °C
Average peak gust
27.1 km/h
Tropical nights (≥ 20 °C)
9 d/yr
Solar radiation
12.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.50 · 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
40.3 °C
24 August 2012
Coldest day
-29.8 °C
15 February 1940
Wettest day
66 mm
13 November 1997
Windiest day
42.6 km/h
10 February 1984
Strongest gust
96.8 km/h
10 February 1984
Hottest feels-like
42.9 °C
8 August 2013
Coldest feels-like
-34.4 °C
15 February 1940
Snowiest day
24.5 cm
29 November 1993
Sunniest day
14.8 h
20 June 2017
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 | 8.9 °C | +5.1 °C | 56 mm | +1 mm |
| Feb | 7.5 °C | +0.6 °C | 55 mm | -1 mm |
| Mar | 15.6 °C | +3.4 °C | 111 mm | +50 mm |
| Apr | 20.0 °C | +2.7 °C | 54 mm | -17 mm |
| May | 21.7 °C | -0.1 °C | 102 mm | +20 mm |
| Jun | 31.0 °C | +5.4 °C | 5 mm | -76 mm |
| Jul | 29.9 °C | +2.0 °C | 100 mm | +27 mm |
| Aug | 29.4 °C | +1.6 °C | 42 mm | -23 mm |
| Sep | 24.9 °C | +1.7 °C | 47 mm | -28 mm |
| Oct | 17.9 °C | +0.7 °C | 98 mm | +30 mm |
| Nov | 11.4 °C | +1.1 °C | 106 mm | +25 mm |
| Dec | 5.8 °C | +0.6 °C | 37 mm | -31 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 Sisak?
Sisak has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 11.8 °C and it receives 836 mm of precipitation per year.
What is the hottest day ever recorded in Sisak?
The hottest day measured in Sisak between 1940 and 2025 was 24 August 2012, reaching 40.3 °C.
What is the coldest day in Sisak?
The coldest day measured in Sisak between 1940 and 2025 was 15 February 1940, at -29.8 °C.
Does it snow in Sisak?
Yes. Sisak gets on average 58.5 cm of snow per year and has around 67 frost days.
Has the climate of Sisak warmed?
Yes: Sisak warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sisak?
The wettest day measured in Sisak between 1940 and 2025 was 13 November 1997, with 66 mm of rain in 24 hours.
What was the windiest day in Sisak?
The windiest day measured in Sisak between 1940 and 2025 was 10 February 1984, with winds reaching 42.6 km/h.
What is the warmest month in Sisak?
The warmest month in Sisak is July (22.3 °C on average); the coldest is January (0.4 °C).
How much does it rain in Sisak?
Sisak receives on average 836 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in Sisak?
Sisak gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sisak?
The heaviest 24-hour snowfall measured in Sisak between 1940 and 2025 was 29 November 1993, with 24.5 cm.
Are there tropical nights in Sisak?
Yes: Sisak has on average 9 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sisak?
In Sisak, between 1940 and 2025, the highest apparent temperature reached 42.9 °C on 8 August 2013, and the lowest was -34.4 °C on 15 February 1940.
Compare Sisak with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sisak