Siliviri climate — normals and trends
Siliviri (Republic of Türkiye) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 14.7 °C and it receives 543 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 August (24.2 °C on average) and the coldest is January (6.2 °C). Rainfall peaks in December.
Siliviri averages 6 frost days, 2 hot days (≥ 30 °C) and 85 rainy days per year.
Siliviri has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 10 to 2 per year over the period.
The hottest day of the period reached 33.1 °C (on 4 August 2023) and the coldest -9.4 °C (on 4 January 1942).
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
SiliviriIstanbul
- coords
- 41.07°, 28.25°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.7°C
Average daily high
16.8°C
Average daily low
12.7°C
Annual rainfall
543mm
Sunshine / day
9.6h
Mean relative humidity
76%
Average peak wind
24.4km/h
Seasonal range
18.0°C
Frost days (< 0 °C)
6 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
85 d/yr
Annual snowfall
15.7 cm
Average feels-like high
15.6 °C
Average feels-like low
10.2 °C
Average peak gust
37.5 km/h
Tropical nights (≥ 20 °C)
73 d/yr
Solar radiation
15.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.37 · 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
33.1 °C
4 August 2023
Coldest day
-9.4 °C
4 January 1942
Wettest day
85 mm
18 December 1963
Windiest day
63.2 km/h
4 March 1987
Strongest gust
103.3 km/h
4 March 1987
Hottest feels-like
38.2 °C
23 July 2025
Coldest feels-like
-15.2 °C
3 January 1942
Snowiest day
24.9 cm
22 January 2004
Sunniest day
14.3 h
1 July 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 | 10.7 °C | +2.8 °C | 64 mm | -9 mm |
| Feb | 6.7 °C | -1.5 °C | 49 mm | -13 mm |
| Mar | 13.0 °C | +3.2 °C | 16 mm | -41 mm |
| Apr | 13.7 °C | -0.2 °C | 40 mm | -3 mm |
| May | 19.3 °C | +0.6 °C | 38 mm | +7 mm |
| Jun | 26.0 °C | +2.2 °C | 1 mm | -24 mm |
| Jul | 29.3 °C | +2.7 °C | 1 mm | -14 mm |
| Aug | 27.9 °C | +1.1 °C | 2 mm | -10 mm |
| Sep | 24.5 °C | +1.1 °C | 19 mm | -7 mm |
| Oct | 19.0 °C | +0.3 °C | 107 mm | +55 mm |
| Nov | 17.4 °C | +3.2 °C | 53 mm | -15 mm |
| Dec | 11.7 °C | +1.5 °C | 40 mm | -44 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 Siliviri?
Siliviri has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 14.7 °C and it receives 543 mm of precipitation per year.
What is the hottest day ever recorded in Siliviri?
The hottest day measured in Siliviri between 1940 and 2025 was 4 August 2023, reaching 33.1 °C.
What is the coldest day in Siliviri?
The coldest day measured in Siliviri between 1940 and 2025 was 4 January 1942, at -9.4 °C.
Does it snow in Siliviri?
Yes. Siliviri gets on average 15.7 cm of snow per year and has around 6 frost days.
Has the climate of Siliviri warmed?
Yes: Siliviri warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Siliviri?
The wettest day measured in Siliviri between 1940 and 2025 was 18 December 1963, with 85 mm of rain in 24 hours.
What was the windiest day in Siliviri?
The windiest day measured in Siliviri between 1940 and 2025 was 4 March 1987, with winds reaching 63.2 km/h.
What is the warmest month in Siliviri?
The warmest month in Siliviri is August (24.2 °C on average); the coldest is January (6.2 °C).
How much does it rain in Siliviri?
Siliviri receives on average 543 mm of precipitation per year, spread over about 85 rainy days.
Is it sunny in Siliviri?
Siliviri gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
What is the biggest single-day snowfall in Siliviri?
The heaviest 24-hour snowfall measured in Siliviri between 1940 and 2025 was 22 January 2004, with 24.9 cm.
Are there tropical nights in Siliviri?
Yes: Siliviri has on average 73 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Siliviri?
In Siliviri, between 1940 and 2025, the highest apparent temperature reached 38.2 °C on 23 July 2025, and the lowest was -15.2 °C on 3 January 1942.
Compare Siliviri with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Siliviri