Kastav climate — normals and trends
Kastav (Croatia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.0 °C and it receives 1,871 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 (19.7 °C on average) and the coldest is January (0.0 °C). Rainfall peaks in November.
Kastav averages 77 frost days, 3 hot days (≥ 30 °C) and 154 rainy days per year.
Kastav has warmed by +2.7 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 96 to 58 per year over the period.
The hottest day of the period reached 34.9 °C (on 27 June 2019) and the coldest -27.7 °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
KastavPrimorje-Gorski Kotar County
- coords
- 45.38°, 14.35°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.0°C
Average daily high
13.8°C
Average daily low
6.5°C
Annual rainfall
1,871mm
Sunshine / day
8.9h
Mean relative humidity
79%
Average peak wind
12.5km/h
Seasonal range
19.7°C
Frost days (< 0 °C)
77 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
154 d/yr
Annual snowfall
89.5 cm
Average feels-like high
12.3 °C
Average feels-like low
4.5 °C
Average peak gust
38.7 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
13.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.61 · 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
34.9 °C
27 June 2019
Coldest day
-27.7 °C
15 February 1940
Wettest day
144 mm
24 September 1973
Windiest day
41.3 km/h
2 December 1983
Strongest gust
126.0 km/h
29 October 2018
Hottest feels-like
38.2 °C
6 July 1957
Coldest feels-like
-32.6 °C
15 February 1940
Snowiest day
36.6 cm
19 November 1999
Sunniest day
14.8 h
29 June 2019
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 | +3.5 °C | 222 mm | +101 mm |
| Feb | 6.5 °C | +1.5 °C | 95 mm | -34 mm |
| Mar | 11.6 °C | +2.6 °C | 310 mm | +172 mm |
| Apr | 15.9 °C | +2.5 °C | 121 mm | -31 mm |
| May | 18.2 °C | +0.3 °C | 200 mm | +43 mm |
| Jun | 26.7 °C | +5.0 °C | 15 mm | -139 mm |
| Jul | 25.2 °C | +1.0 °C | 223 mm | +96 mm |
| Aug | 25.4 °C | +1.4 °C | 136 mm | -3 mm |
| Sep | 21.0 °C | +1.2 °C | 181 mm | -3 mm |
| Oct | 14.8 °C | +0.3 °C | 234 mm | +37 mm |
| Nov | 10.7 °C | +2.1 °C | 242 mm | +26 mm |
| Dec | 7.8 °C | +3.3 °C | 29 mm | -128 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 Kastav?
Kastav has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.0 °C and it receives 1,871 mm of precipitation per year.
What is the hottest day ever recorded in Kastav?
The hottest day measured in Kastav between 1940 and 2025 was 27 June 2019, reaching 34.9 °C.
What is the coldest day in Kastav?
The coldest day measured in Kastav between 1940 and 2025 was 15 February 1940, at -27.7 °C.
Does it snow in Kastav?
Yes. Kastav gets on average 89.5 cm of snow per year and has around 77 frost days.
Has the climate of Kastav warmed?
Yes: Kastav warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kastav?
The wettest day measured in Kastav between 1940 and 2025 was 24 September 1973, with 144 mm of rain in 24 hours.
What was the windiest day in Kastav?
The windiest day measured in Kastav between 1940 and 2025 was 2 December 1983, with winds reaching 41.3 km/h.
What is the warmest month in Kastav?
The warmest month in Kastav is July (19.7 °C on average); the coldest is January (0.0 °C).
How much does it rain in Kastav?
Kastav receives on average 1,871 mm of precipitation per year, spread over about 154 rainy days.
Is it sunny in Kastav?
Kastav gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kastav?
The heaviest 24-hour snowfall measured in Kastav between 1940 and 2025 was 19 November 1999, with 36.6 cm.
Are there tropical nights in Kastav?
Yes: Kastav has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kastav?
In Kastav, between 1940 and 2025, the highest apparent temperature reached 38.2 °C on 6 July 1957, and the lowest was -32.6 °C on 15 February 1940.
Compare Kastav with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kastav