Climate averages 1991–2020

Bratislava weather
in December.

A cold, moderately wet month: the 11th warmest and the 3rd driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 3.6°C Daytime mean, December
Average low -1.7°C Night-time mean, December
Rainfall 40 mm 8 days with ≥1 mm
Daylight 8 h Sunrise to sunset, per day
Every month in Bratislava · average highYear overview

December is a cold month in Bratislava: daytime highs average 3.6°C and nights cool to about -1.7°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 40 mm of rain on roughly 8 days, which makes December a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 26 min on an average December day.

The nearest other city in this atlas is Vienna (55 km away). In December its highs average 3.8°C, about as warm as Bratislava, with 38 mm of rain.

Among the 6 cities listed in Slovakia, Bratislava ranks 1st of 6 for the warmest December highs and 3rd of 6 for the driest December (rainfall, lowest first). The mean December high of those 6 cities is 2.3°C; Bratislava is 1.3°C warmer than that mean.

From December to January, average highs fall by 0.7°C to 2.9°C, and monthly rainfall falls from 40 mm to 35 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -10-5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Bratislava climate table

1991–2020
Monthly climate averages for Bratislava, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 2.9°C-3.1°C-3.1°C357.98.89 h
February 5.5°C-2.3°C-2.3°C337.810.210 h
March 10.2°C1.1°C1.1°C428.811.912 h
April 16.0°C5.6°C5.6°C448.113.614 h
May 20.4°C10.6°C10.6°C6811.115.215 h
June 24.1°C14.5°C14.5°C7311.316.016 h
July 26.3°C16.6°C16.6°C7811.615.616 h
August 26.1°C16.4°C16.4°C679.514.314 h
September 20.7°C12.0°C12.0°C679.012.613 h
October 15.0°C7.3°C7.3°C478.710.911 h
November 8.9°C3.0°C3.0°C468.89.39 h
December, selected 3.6°C-1.7°C-1.7°C408.48.48 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

December in nearby cities

Distance from Bratislava

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bratislava) is explained once on the Bratislava year overview and on the Sources, method and limits page.