Sillamäe climate — normals and trends
Sillamäe (Estonia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 5.0 °C and it receives 769 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 (16.8 °C on average) and the coldest is February (-5.8 °C). Rainfall peaks in October.
Sillamäe averages 130 frost days, 0 hot days (≥ 30 °C) and 149 rainy days per year.
Sillamäe 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 162 to 98 per year over the period.
The hottest day of the period reached 28.6 °C (on 15 July 2010) and the coldest -31.2 °C (on 10 January 1987).
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
SillamäeIda-Virumaa
- coords
- 59.40°, 27.76°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.0°C
Average daily high
6.7°C
Average daily low
3.4°C
Annual rainfall
769mm
Sunshine / day
7.3h
Mean relative humidity
83%
Average peak wind
24.9km/h
Seasonal range
22.6°C
Frost days (< 0 °C)
130 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
149 d/yr
Annual snowfall
127.1 cm
Average feels-like high
3.1 °C
Average feels-like low
-1.1 °C
Average peak gust
34.9 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
9.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.1 °C
since 1940
+0.4 °C per decade · r² = 0.52 · 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
28.6 °C
15 July 2010
Coldest day
-31.2 °C
10 January 1987
Wettest day
60 mm
7 August 1987
Windiest day
64.7 km/h
13 September 1962
Strongest gust
96.5 km/h
1 October 1994
Hottest feels-like
32.0 °C
15 July 2021
Coldest feels-like
-38.4 °C
10 January 1987
Snowiest day
14.8 cm
26 December 2009
Sunniest day
18.0 h
18 June 1940
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 | 1.6 °C | +5.0 °C | 119 mm | +71 mm |
| Feb | -1.7 °C | +2.4 °C | 27 mm | -9 mm |
| Mar | 3.5 °C | +4.4 °C | 39 mm | +2 mm |
| Apr | 6.8 °C | +2.5 °C | 54 mm | +14 mm |
| May | 10.5 °C | +0.9 °C | 87 mm | +41 mm |
| Jun | 15.5 °C | +1.5 °C | 147 mm | +85 mm |
| Jul | 21.1 °C | +2.7 °C | 67 mm | -0 mm |
| Aug | 18.4 °C | +0.3 °C | 163 mm | +70 mm |
| Sep | 16.7 °C | +2.8 °C | 61 mm | -32 mm |
| Oct | 9.4 °C | +1.5 °C | 81 mm | -19 mm |
| Nov | 5.6 °C | +2.5 °C | 109 mm | +25 mm |
| Dec | 3.2 °C | +3.7 °C | 84 mm | +21 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 Sillamäe?
Sillamäe has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 5.0 °C and it receives 769 mm of precipitation per year.
What is the hottest day ever recorded in Sillamäe?
The hottest day measured in Sillamäe between 1940 and 2025 was 15 July 2010, reaching 28.6 °C.
What is the coldest day in Sillamäe?
The coldest day measured in Sillamäe between 1940 and 2025 was 10 January 1987, at -31.2 °C.
Does it snow in Sillamäe?
Yes. Sillamäe gets on average 127.1 cm of snow per year and has around 130 frost days.
Has the climate of Sillamäe warmed?
Yes: Sillamäe warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sillamäe?
The wettest day measured in Sillamäe between 1940 and 2025 was 7 August 1987, with 60 mm of rain in 24 hours.
What was the windiest day in Sillamäe?
The windiest day measured in Sillamäe between 1940 and 2025 was 13 September 1962, with winds reaching 64.7 km/h.
What is the warmest month in Sillamäe?
The warmest month in Sillamäe is July (16.8 °C on average); the coldest is February (-5.8 °C).
How much does it rain in Sillamäe?
Sillamäe receives on average 769 mm of precipitation per year, spread over about 149 rainy days.
Is it sunny in Sillamäe?
Sillamäe gets on average 7.3 hours of sunshine per day, roughly 2,665 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sillamäe?
The heaviest 24-hour snowfall measured in Sillamäe between 1940 and 2025 was 26 December 2009, with 14.8 cm.
Are there tropical nights in Sillamäe?
Yes: Sillamäe has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sillamäe?
In Sillamäe, between 1940 and 2025, the highest apparent temperature reached 32.0 °C on 15 July 2021, and the lowest was -38.4 °C on 10 January 1987.
Compare Sillamäe with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sillamäe