Climate averages 1991–2020

Inowrocław weather
in December.

A cold, fairly dry month: the 11th warmest and the 5th driest of the year.

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

Average high 2.4°C Daytime mean, December
Average low -1.5°C Night-time mean, December
Rainfall 39 mm 10 days with ≥1 mm
Daylight 8 h Sunrise to sunset, per day
Every month in Inowrocław · average highYear overview

December is a cold month in Inowrocław: daytime highs average 2.4°C and nights cool to about -1.5°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 39 mm of rain on roughly 10 days, which makes December a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 7 h 43 min on an average December day.

The nearest other city in this atlas is Toruń (33 km away). In December its highs average 2.6°C, about as warm as Inowrocław, with 40 mm of rain.

Among the 60 cities listed in Poland, Inowrocław ranks joint 28th of 60 for the warmest December highs and joint 4th of 60 for the driest December (rainfall, lowest first). The mean December high of those 60 cities is 2.4°C; Inowrocław is level with that mean.

From December to January, average highs fall by 1.3°C to 1.1°C, and monthly precipitation falls from 39 mm to 38 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 precipitation

Average total · mm
Average monthly precipitation 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

Inowrocław climate table

1991–2020
Monthly climate averages for Inowrocław, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 1.1°C-3.2°C-3.2°C389.98.28 h
February 2.8°C-2.7°C-2.7°C328.39.810 h
March 6.9°C-0.5°C-0.5°C4310.311.812 h
April 13.1°C3.8°C3.8°C358.813.914 h
May 18.0°C8.8°C8.8°C5811.515.816 h
June 21.1°C12.4°C12.4°C6211.216.817 h
July 23.2°C14.8°C14.8°C8311.916.416 h
August 23.0°C14.6°C14.6°C5910.214.715 h
September 18.1°C10.7°C10.7°C508.712.713 h
October 12.3°C6.3°C6.3°C429.110.711 h
November 6.4°C2.1°C2.1°C369.18.89 h
December, selected 2.4°C-1.5°C-1.5°C399.57.78 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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 Inowrocław

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 Inowrocław) is explained once on the Inowrocław year overview and on the Sources, method and limits page.