Sinj climate — normals and trends
Sinj (Croatia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.0 °C and it receives 1,496 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 (20.0 °C on average) and the coldest is January (0.1 °C). Rainfall peaks in November.
Sinj averages 86 frost days, 7 hot days (≥ 30 °C) and 138 rainy days per year.
Sinj has warmed by +3.1 °C between 1940 and 2025, or +0.37 °C per decade. This trend is statistically significant.
The number of frost days there went from about 111 to 61 per year over the period.
The hottest day of the period reached 35.1 °C (on 10 August 2017) and the coldest -25.2 °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
SinjSplit-Dalmatia County
- coords
- 43.70°, 16.64°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.0°C
Average daily high
14.6°C
Average daily low
5.7°C
Annual rainfall
1,496mm
Sunshine / day
9.4h
Mean relative humidity
75%
Average peak wind
11.8km/h
Seasonal range
19.9°C
Frost days (< 0 °C)
86 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
138 d/yr
Annual snowfall
91.4 cm
Average feels-like high
13.2 °C
Average feels-like low
3.5 °C
Average peak gust
38.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.1 °C
since 1940
+0.4 °C per decade · r² = 0.66 · 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
35.1 °C
10 August 2017
Coldest day
-25.2 °C
16 February 1940
Wettest day
111 mm
18 September 1968
Windiest day
37.0 km/h
23 February 2019
Strongest gust
131.8 km/h
5 March 2015
Hottest feels-like
37.1 °C
17 July 2024
Coldest feels-like
-30.3 °C
23 January 1942
Snowiest day
33.6 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 | 7.8 °C | +4.0 °C | 108 mm | -23 mm |
| Feb | 8.3 °C | +2.9 °C | 111 mm | -26 mm |
| Mar | 12.5 °C | +3.4 °C | 263 mm | +135 mm |
| Apr | 16.0 °C | +2.5 °C | 119 mm | -13 mm |
| May | 18.8 °C | +0.5 °C | 163 mm | +42 mm |
| Jun | 27.7 °C | +5.5 °C | 8 mm | -80 mm |
| Jul | 27.4 °C | +2.3 °C | 61 mm | +7 mm |
| Aug | 27.1 °C | +1.8 °C | 114 mm | +48 mm |
| Sep | 23.3 °C | +2.3 °C | 92 mm | -15 mm |
| Oct | 15.3 °C | -0.5 °C | 108 mm | -40 mm |
| Nov | 11.7 °C | +1.9 °C | 231 mm | +20 mm |
| Dec | 9.1 °C | +3.7 °C | 65 mm | -109 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 Sinj?
Sinj has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.0 °C and it receives 1,496 mm of precipitation per year.
What is the hottest day ever recorded in Sinj?
The hottest day measured in Sinj between 1940 and 2025 was 10 August 2017, reaching 35.1 °C.
What is the coldest day in Sinj?
The coldest day measured in Sinj between 1940 and 2025 was 16 February 1940, at -25.2 °C.
Does it snow in Sinj?
Yes. Sinj gets on average 91.4 cm of snow per year and has around 86 frost days.
Has the climate of Sinj warmed?
Yes: Sinj warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sinj?
The wettest day measured in Sinj between 1940 and 2025 was 18 September 1968, with 111 mm of rain in 24 hours.
What was the windiest day in Sinj?
The windiest day measured in Sinj between 1940 and 2025 was 23 February 2019, with winds reaching 37.0 km/h.
What is the warmest month in Sinj?
The warmest month in Sinj is July (20.0 °C on average); the coldest is January (0.1 °C).
How much does it rain in Sinj?
Sinj receives on average 1,496 mm of precipitation per year, spread over about 138 rainy days.
Is it sunny in Sinj?
Sinj gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sinj?
The heaviest 24-hour snowfall measured in Sinj between 1940 and 2025 was 11 February 1944, with 33.6 cm.
Are there tropical nights in Sinj?
Yes: Sinj has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sinj?
In Sinj, between 1940 and 2025, the highest apparent temperature reached 37.1 °C on 17 July 2024, and the lowest was -30.3 °C on 23 January 1942.
Compare Sinj with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sinj