Climate averages 1991–2020

Bytom weather
in June.

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

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

Average high 21.3°C Daytime mean, June
Average low 12.6°C Night-time mean, June
Rainfall 82 mm 13 days with ≥1 mm
Daylight 16 h Sunrise to sunset, per day
Every month in Bytom · average highYear overview

June is a mild month in Bytom: daytime highs average 21.3°C and nights cool to about 12.6°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 82 mm of rain on roughly 13 days, which makes June a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 21 min on an average June day.

The nearest other city in this atlas is Zabrze (11 km away). In June its highs average 21.5°C, about as warm as Bytom, with 84 mm of rain.

Among the 60 cities listed in Poland, Bytom ranks joint 41st of 60 for the warmest June highs and joint 43rd of 60 for the driest June (rainfall, lowest first). The mean June high of those 60 cities is 21.3°C; Bytom is level with that mean.

From June to July, average highs rise by 2.0°C to 23.3°C, and monthly rainfall rises from 82 mm to 98 mm.

The annual picture

June 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

Bytom climate table

1991–2020
Monthly climate averages for Bytom, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 0.7°C-4.6°C-4.6°C4611.48.69 h
February 2.6°C-3.9°C-3.9°C4310.410.010 h
March 7.4°C-0.8°C-0.8°C5211.811.812 h
April 13.7°C3.8°C3.8°C5010.113.814 h
May 18.1°C8.9°C8.9°C8013.915.415 h
June, selected 21.3°C12.6°C12.6°C8213.216.316 h
July 23.3°C14.6°C14.6°C9814.016.016 h
August 23.3°C14.4°C14.4°C7111.314.515 h
September 18.3°C10.4°C10.4°C7111.112.713 h
October 12.9°C6.1°C6.1°C5410.010.811 h
November 7.2°C1.7°C1.7°C5010.19.19 h
December 2.1°C-2.7°C-2.7°C4510.78.18 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

June in nearby cities

Distance from Bytom

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

Katowice, Sosnowiec and Tychy lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.