Sillamäe, Estonia — Weather in December 2026

Climate Overview

Sillamäe, Estonia in December has cold conditions, with highs averaging around 0.4°C (33°F). Rain falls on about 14 days this month. Sea temperature stays cool at 3°C (37°F).

This month falls at the beginning of Winter. Cold conditions dominate the month.

Temperatures remain fairly steady throughout December, with daily highs around 0°C (32°F).

December sees fairly even rainfall, totalling about 58 mm across the month.

Expect around 1.0h of sunshine at the start of December, decreasing to 0.5h by the end.

Wind speeds pick up through the month, from 20 km/h (12 mph) to 23 km/h (14 mph).

The warmest days tend to fall around the 18th, averaging 1.5°C (35°F).

Compared to November, this month is about 3°C cooler with 0 fewer rainy days.

Monthly December Averages

Temperature

0°C / -2°C

Feels Like

-4°C / -7°C

Rain

14 days · 57 mm

Sunshine

0.7h / day

Humidity

88% — Very Humid

Wind

22 km/h

Wind Direction

SSW (208°)

Gusts

39 km/h

Daylight

6.2 h

Cloud Cover

90%

Clear Sky Days

0.4

UV Index

0.3 — Low

Sea Temperature

3°C

Dew Point

-3°C — Dry

Moon Phase

Waxing Crescent · 31%

Snow Days

17 days · 25.6 cm

Frost Days

21 days

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 09:00

Daylight 6.1h

Sunset 15:08

What to Expect

Cold daytime highs of 0°C (33°F) mean shorter outdoor excursions with warming breaks. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

2 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	-2°C / -5°C	-6°C / -10°C	13days (56 mm) Wet	1.2h Poor	87% Very Muggy	0.4 Low	Poor	View Details
February	-1°C / -5°C	-6°C / -10°C	11days (43 mm) Wet	3.1h Poor	85% Humid	1.1 Low	Poor	View Details
March	2°C / -3°C	-2°C / -7°C	11days (41 mm) Wet	6.5h Fair	81% Humid	2.2 Moderate	Poor	View Details
April	8°C / 2°C	4°C / -3°C	10days (46 mm) Wet	9.8h Good	75% Muggy	3.4 Moderate	Poor	View Details
May	14°C / 7°C	12°C / 4°C	10days (50 mm) Wet	12.6h Excellent	69% Muggy	4.8 Moderate	Fair	View Details
June best	19°C / 13°C	19°C / 12°C	11days (80 mm) Wet	13.4h Excellent	72% Muggy	5.4 High	Excellent	View Details
July best	21°C / 16°C	21°C / 15°C	15days (81 mm) Wet	12.8h Excellent	76% Humid	5.3 High	Excellent	View Details
August best	20°C / 15°C	20°C / 14°C	15days (94 mm) Wet	10.5h Excellent	78% Humid	4.4 Moderate	Good	View Details
September best	16°C / 12°C	14°C / 9°C	12days (60 mm) Wet	7.8h Good	79% Humid	3.1 Moderate	Good	View Details
October	9°C / 6°C	6°C / 2°C	15days (80 mm) Wet	4.3h Fair	83% Humid	1.5 Low	Poor	View Details
November	4°C / 1°C	0°C / -3°C	14days (64 mm) Wet	1.5h Poor	86% Very Muggy	0.6 Low	Poor	View Details
December	0°C / -2°C	-4°C / -7°C	14days (57 mm) Wet	0.7h Poor	88% Very Muggy	0.3 Low	Poor	View Details

What to Wear

Full winter gear is a must — insulated coat, thermal base layers, warm hat, gloves, and waterproof boots.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm coatThermal base layersScarf & glovesUmbrellaWaterproof jacketWaterproof shoes

Frequently Asked Questions

Expand all

Is December a good time to visit Sillamäe?

December is typically poor for visiting Sillamäe, with average highs of 0°C (33°F) and around 14 rainy days. Sillamäe, Estonia in December has cold conditions, with highs averaging around 0.4°C (33°F). Rain falls on about 14 days

Does it rain a lot in Sillamäe in December?

Sillamäe typically sees around 14 rainy days in December with 57 mm (2.2 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Sillamäe in December?

Yes, nights in Sillamäe during December are cold, averaging -2°C (28°F). Pack warm layers and a coat for evenings.

What should I pack for Sillamäe in December?

With highs of 0°C (33°F) and lows of -2°C (28°F) in December, we recommend: Warm coat, Thermal base layers, Scarf & gloves, Umbrella, Waterproof jacket. Comfortable walking shoes are essential.

Is December among the best months weather-wise in Sillamäe?

December is not the most favourable month weather-wise in Sillamäe. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Sillamäe in December?

The average UV index in Sillamäe during December is 0 (low). No special sun protection is needed.

How many hours of daylight are there in Sillamäe in December?

Sillamäe gets approximately 6 hours of daylight per day in December, with around 1 hours of sunshine.

Does it snow in Sillamäe in December?

Yes, Sillamäe typically sees around 17 snow days in December with roughly 26 cm (10 in) of snowfall.

Last updated: