Sofia, Bulgaria — Weather in December 2026

Monthly climate averages for Sofia, Bulgaria. Based on 10-year ERA5 reanalysis data.

Cfa Humid Subtropical
1.6 /10
Poor

December is a poor month in Sofia

Climate Overview

Sofia, Bulgaria in December has cold conditions, with highs averaging around 6°C (43°F).

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

Temperatures remain fairly steady throughout December, with daily highs around 6°C (43°F).

Rainfall is heaviest during the first third of the month, while the last third tends to be drier.

Expect around 5.0h of sunshine at the start of December, increasing to 6.1h by the end.

The warmest days tend to fall around the 10th, averaging 6.9°C (44°F).

Compared to November, this month is about 5°C cooler with 0 fewer rainy days.

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Monthly December Averages

Temperature
6°C / -1°C
Feels Like
3°C / -4°C
Rain
9 days · 52 mm
Sunshine
5.6h / day
Humidity
82% — Very Humid
Wind
10 km/h
Wind Direction
WSW (255°)
Gusts
28 km/h
Daylight
9.1 h
Cloud Cover
64%
Clear Sky Days
3.6
UV Index
1.7 — Low
Dew Point
0°C — Dry
Moon Phase
Waxing Crescent · 31%
Snow Days
8 days · 16.3 cm
Frost Days
18 days

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

12°C 9°C 6°C 3°C 0°C -3°C -6°C 151015202531
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 151015202531
Rainfall

Daily Sunshine

0h 2h 4h 6h 8h 10h 151015202531
Sunshine

Daily Wind Speed

0 4 8 12 16 20 151015202531
Wind Speed
Sun Position
Sunrise 07:51
Daylight 9.1h
Sunset 16:55

What to Expect

Cold daytime highs of 6°C (43°F) mean shorter outdoor excursions with warming breaks.

Rain usually comes in shorter passing showers rather than all-day rain.

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

Compare Months

January
Poor
Temp
4°C / -4°C
Feels Like
1°C / -7°C
Rain
10days (57 mm) Wet
Sun
6.2h Fair
Humidity
79% Humid
UV
2.3 Moderate
Snow Days
10days
View Details
February
Poor
Temp
8°C / -1°C
Feels Like
5°C / -5°C
Rain
8days (37 mm) Wet
Sun
7.6h Good
Humidity
75% Muggy
UV
3.2 Moderate
Snow Days
8days
View Details
March
Poor
Temp
11°C / 2°C
Feels Like
8°C / -1°C
Rain
11days (60 mm) Wet
Sun
8.4h Good
Humidity
71% Muggy
UV
4.2 Moderate
Snow Days
6days
View Details
April
Fair
Temp
16°C / 6°C
Feels Like
14°C / 3°C
Rain
11days (55 mm) Wet
Sun
10.2h Excellent
Humidity
67% Muggy
UV
5.6 High
Snow Days
3days
View Details
May
Good
Temp
20°C / 10°C
Feels Like
19°C / 9°C
Rain
14days (72 mm) Wet
Sun
10.9h Excellent
Humidity
71% Muggy
UV
6.3 High
View Details
June best
Excellent
Temp
25°C / 15°C
Feels Like
26°C / 16°C
Rain
12days (74 mm) Wet
Sun
12.2h Excellent
Humidity
71% Muggy
UV
7.3 Very High
View Details
July best
Excellent
Temp
27°C / 17°C
Feels Like
29°C / 18°C
Rain
8days (44 mm) Wet
Sun
12.8h Excellent
Humidity
64% Muggy
UV
7.5 Very High
View Details
August best
Excellent
Temp
27°C / 17°C
Feels Like
28°C / 18°C
Rain
7days (32 mm) Good
Sun
12.2h Excellent
Humidity
61% Muggy
UV
6.8 High
View Details
September best
Excellent
Temp
23°C / 13°C
Feels Like
22°C / 12°C
Rain
4days (27 mm) Good
Sun
10.1h Excellent
Humidity
64% Muggy
UV
5.2 High
View Details
October best
Excellent
Temp
17°C / 8°C
Feels Like
15°C / 6°C
Rain
6days (47 mm) Good
Sun
8.1h Good
Humidity
72% Muggy
UV
3.7 Moderate
Snow Days
1days
View Details
November
Poor
Temp
11°C / 3°C
Feels Like
9°C / 0°C
Rain
9days (53 mm) Wet
Sun
6.2h Fair
Humidity
81% Humid
UV
2.3 Moderate
Snow Days
3days
View Details
December
Poor
Temp
6°C / -1°C
Feels Like
3°C / -4°C
Rain
9days (52 mm) Wet
Sun
5.6h Fair
Humidity
82% Humid
UV
1.7 Low
Snow Days
8days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 4°C / -4°C 1°C / -7°C 10days (57 mm) Wet 6.2h Fair 79% Humid 2.3 Moderate Poor View Details
February 8°C / -1°C 5°C / -5°C 8days (37 mm) Wet 7.6h Good 75% Muggy 3.2 Moderate Poor View Details
March 11°C / 2°C 8°C / -1°C 11days (60 mm) Wet 8.4h Good 71% Muggy 4.2 Moderate Poor View Details
April 16°C / 6°C 14°C / 3°C 11days (55 mm) Wet 10.2h Excellent 67% Muggy 5.6 High Fair View Details
May 20°C / 10°C 19°C / 9°C 14days (72 mm) Wet 10.9h Excellent 71% Muggy 6.3 High Good View Details
June best 25°C / 15°C 26°C / 16°C 12days (74 mm) Wet 12.2h Excellent 71% Muggy 7.3 Very High Excellent View Details
July best 27°C / 17°C 29°C / 18°C 8days (44 mm) Wet 12.8h Excellent 64% Muggy 7.5 Very High Excellent View Details
August best 27°C / 17°C 28°C / 18°C 7days (32 mm) Good 12.2h Excellent 61% Muggy 6.8 High Excellent View Details
September best 23°C / 13°C 22°C / 12°C 4days (27 mm) Good 10.1h Excellent 64% Muggy 5.2 High Excellent View Details
October best 17°C / 8°C 15°C / 6°C 6days (47 mm) Good 8.1h Good 72% Muggy 3.7 Moderate Excellent View Details
November 11°C / 3°C 9°C / 0°C 9days (53 mm) Wet 6.2h Fair 81% Humid 2.3 Moderate Poor View Details
December 6°C / -1°C 3°C / -4°C 9days (52 mm) Wet 5.6h Fair 82% Humid 1.7 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 & glovesUmbrellaComfortable walking shoes

Frequently Asked Questions

December is typically poor for visiting Sofia, with average highs of 6°C (43°F) and around 9 rainy days. Sofia, Bulgaria in December has cold conditions, with highs averaging around 6°C (43°F).
Sofia typically sees around 9 rainy days in December with 52 mm (2 in) of total rainfall. An umbrella should suffice.
Yes, nights in Sofia during December are cold, averaging -1°C (30°F). Pack warm layers and a coat for evenings.
With highs of 6°C (43°F) and lows of -1°C (30°F) in December, we recommend: Warm coat, Thermal base layers, Scarf & gloves, Umbrella, Comfortable walking shoes. Comfortable walking shoes are essential.
December is not the most favourable month weather-wise in Sofia. Consider visiting during months with milder temperatures or less rainfall for a better experience.
The average UV index in Sofia during December is 2 (low). No special sun protection is needed.
Sofia gets approximately 9 hours of daylight per day in December, with around 6 hours of sunshine.
Yes, Sofia typically sees around 8 snow days in December with roughly 16 cm (6 in) of snowfall.

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