Simmering, Austria — Weather in December 2026

Monthly climate averages for Simmering, Austria. Based on 10-year ERA5 reanalysis data.

Cfa Humid Subtropical
1.5 /10
Poor

December is a poor month in Simmering

Climate Overview

Simmering, Austria in December has cold conditions, with highs averaging around 5.5°C (42°F). Rain falls on about 10 days this month.

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

Daily highs in December gradually rise from around 4°C (39°F) at the start to 6°C (44°F) by month's end.

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

Expect around 3.6h of sunshine at the start of December, increasing to 5.4h by the end.

The warmest days tend to fall around the 25th, averaging 6.9°C (44°F).

Compared to November, this month is about 4°C cooler with 1 more rainy days.

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Monthly December Averages

Temperature
6°C / 0°C
Feels Like
2°C / -4°C
Rain
10 days · 46 mm
Sunshine
3.9h / day
Humidity
84% — Very Humid
Wind
20 km/h
Wind Direction
WSW (250°)
Gusts
39 km/h
Daylight
8.4 h
Cloud Cover
72%
Clear Sky Days
1.9
UV Index
1.2 — Low
Dew Point
0°C — Dry
Moon Phase
Waxing Crescent · 31%
Snow Days
5 days · 6.6 cm
Frost Days
16 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
High Low

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 151015202531
Rainfall

Daily Sunshine

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

Daily Wind Speed

0 6 12 18 24 30 151015202531
Wind Speed
Sun Position
Sunrise 07:38
Daylight 8.4h
Sunset 16:01

What to Expect

Cold daytime highs of 6°C (42°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
5°C / -1°C
Feels Like
0°C / -6°C
Rain
10days (35 mm) Wet
Sun
4.8h Fair
Humidity
80% Humid
UV
1.4 Low
Snow Days
8days
View Details
February
Poor
Temp
8°C / 0°C
Feels Like
4°C / -4°C
Rain
8days (34 mm) Wet
Sun
6.4h Fair
Humidity
75% Muggy
UV
2.2 Moderate
Snow Days
3days
View Details
March
Poor
Temp
12°C / 2°C
Feels Like
8°C / -2°C
Rain
7days (33 mm) Good
Sun
8.3h Good
Humidity
69% Muggy
UV
3.5 Moderate
Snow Days
2days
View Details
April
Fair
Temp
16°C / 6°C
Feels Like
13°C / 3°C
Rain
9days (49 mm) Wet
Sun
9.6h Good
Humidity
65% Muggy
UV
4.6 Moderate
Snow Days
1days
View Details
May
Good
Temp
20°C / 10°C
Feels Like
18°C / 8°C
Rain
13days (72 mm) Wet
Sun
10.6h Excellent
Humidity
69% Muggy
UV
5.7 High
View Details
June best
Excellent
Temp
26°C / 16°C
Feels Like
26°C / 15°C
Rain
10days (69 mm) Wet
Sun
12.1h Excellent
Humidity
66% Muggy
UV
6.4 High
View Details
July best
Excellent
Temp
27°C / 18°C
Feels Like
27°C / 17°C
Rain
11days (66 mm) Wet
Sun
12.2h Excellent
Humidity
62% Muggy
UV
6.2 High
View Details
August best
Excellent
Temp
27°C / 17°C
Feels Like
28°C / 17°C
Rain
10days (63 mm) Wet
Sun
10.9h Excellent
Humidity
65% Muggy
UV
5.5 High
View Details
September best
Excellent
Temp
22°C / 13°C
Feels Like
21°C / 12°C
Rain
9days (85 mm) Wet
Sun
8.9h Good
Humidity
70% Muggy
UV
4 Moderate
View Details
October best
Good
Temp
17°C / 9°C
Feels Like
14°C / 6°C
Rain
9days (48 mm) Wet
Sun
6.9h Fair
Humidity
77% Humid
UV
2.8 Moderate
View Details
November
Poor
Temp
9°C / 3°C
Feels Like
6°C / 0°C
Rain
9days (46 mm) Wet
Sun
4.7h Fair
Humidity
83% Humid
UV
1.7 Low
Snow Days
3days
View Details
December
Poor
Temp
6°C / 0°C
Feels Like
2°C / -4°C
Rain
10days (46 mm) Wet
Sun
3.9h Poor
Humidity
84% Humid
UV
1.2 Low
Snow Days
5days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 5°C / -1°C 0°C / -6°C 10days (35 mm) Wet 4.8h Fair 80% Humid 1.4 Low Poor View Details
February 8°C / 0°C 4°C / -4°C 8days (34 mm) Wet 6.4h Fair 75% Muggy 2.2 Moderate Poor View Details
March 12°C / 2°C 8°C / -2°C 7days (33 mm) Good 8.3h Good 69% Muggy 3.5 Moderate Poor View Details
April 16°C / 6°C 13°C / 3°C 9days (49 mm) Wet 9.6h Good 65% Muggy 4.6 Moderate Fair View Details
May 20°C / 10°C 18°C / 8°C 13days (72 mm) Wet 10.6h Excellent 69% Muggy 5.7 High Good View Details
June best 26°C / 16°C 26°C / 15°C 10days (69 mm) Wet 12.1h Excellent 66% Muggy 6.4 High Excellent View Details
July best 27°C / 18°C 27°C / 17°C 11days (66 mm) Wet 12.2h Excellent 62% Muggy 6.2 High Excellent View Details
August best 27°C / 17°C 28°C / 17°C 10days (63 mm) Wet 10.9h Excellent 65% Muggy 5.5 High Excellent View Details
September best 22°C / 13°C 21°C / 12°C 9days (85 mm) Wet 8.9h Good 70% Muggy 4 Moderate Excellent View Details
October best 17°C / 9°C 14°C / 6°C 9days (48 mm) Wet 6.9h Fair 77% Humid 2.8 Moderate Good View Details
November 9°C / 3°C 6°C / 0°C 9days (46 mm) Wet 4.7h Fair 83% Humid 1.7 Low Poor View Details
December 6°C / 0°C 2°C / -4°C 10days (46 mm) Wet 3.9h Poor 84% Humid 1.2 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 jacketComfortable walking shoes

Frequently Asked Questions

December is typically poor for visiting Simmering, with average highs of 6°C (42°F) and around 10 rainy days. Simmering, Austria in December has cold conditions, with highs averaging around 5.5°C (42°F). Rain falls on about 10 day
Simmering typically sees around 10 rainy days in December with 46 mm (1.8 in) of total rainfall. An umbrella should suffice.
Yes, nights in Simmering during December are cold, averaging 0°C (32°F). Pack warm layers and a coat for evenings.
With highs of 6°C (42°F) and lows of 0°C (32°F) in December, we recommend: Warm coat, Thermal base layers, Scarf & gloves, Umbrella, Waterproof jacket. Comfortable walking shoes are essential.
December is not the most favourable month weather-wise in Simmering. Consider visiting during months with milder temperatures or less rainfall for a better experience.
The average UV index in Simmering during December is 1 (low). No special sun protection is needed.
Simmering gets approximately 8 hours of daylight per day in December, with around 4 hours of sunshine.
Yes, Simmering typically sees around 5 snow days in December with roughly 7 cm (3 in) of snowfall.

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