Climate averages 1991–2020
Bytom weather
in April.
A cool, moderately wet month: the 6th warmest and the joint 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Bytom: daytime highs average 13.7°C and nights cool to about 3.8°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 50 mm of rain on roughly 10 days, which makes April a moderately wet month (the joint 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 45 min on an average April day.
The nearest other city in this atlas is Zabrze (11 km away). In April its highs average 13.9°C, about as warm as Bytom, with 50 mm of rain.
Among the 60 cities listed in Poland, Bytom ranks joint 21st of 60 for the warmest April highs and joint 40th of 60 for the driest April (rainfall, lowest first). The mean April high of those 60 cities is 13.4°C; Bytom is 0.3°C warmer than that mean.
From April to May, average highs rise by 4.4°C to 18.1°C, and monthly rainfall rises from 50 mm to 80 mm.
The annual picture
April in context
Monthly precipitation
Average total · mmAverages 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
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.7°C-4.6°C | -4.6°C | 46 | 11.4 | 8.69 h |
| February | 2.6°C-3.9°C | -3.9°C | 43 | 10.4 | 10.010 h |
| March | 7.4°C-0.8°C | -0.8°C | 52 | 11.8 | 11.812 h |
| April, selected | 13.7°C3.8°C | 3.8°C | 50 | 10.1 | 13.814 h |
| May | 18.1°C8.9°C | 8.9°C | 80 | 13.9 | 15.415 h |
| June | 21.3°C12.6°C | 12.6°C | 82 | 13.2 | 16.316 h |
| July | 23.3°C14.6°C | 14.6°C | 98 | 14.0 | 16.016 h |
| August | 23.3°C14.4°C | 14.4°C | 71 | 11.3 | 14.515 h |
| September | 18.3°C10.4°C | 10.4°C | 71 | 11.1 | 12.713 h |
| October | 12.9°C6.1°C | 6.1°C | 54 | 10.0 | 10.811 h |
| November | 7.2°C1.7°C | 1.7°C | 50 | 10.1 | 9.19 h |
| December | 2.1°C-2.7°C | -2.7°C | 45 | 10.7 | 8.18 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
April in nearby cities
- Zabrze in AprilPoland · 11 kmHigh 13.9°C · Low 4.0°C · 50 mm rain
- Katowice in AprilPoland · 12 kmHigh 13.7°C · Low 3.9°C · 50 mm rain
- Sosnowiec in AprilPoland · 14 kmHigh 13.8°C · Low 4.0°C · 50 mm rain
- Gliwice in AprilPoland · 19 kmHigh 14.2°C · Low 4.3°C · 50 mm rain
- Dąbrowa Górnicza in AprilPoland · 19 kmHigh 13.8°C · Low 3.9°C · 52 mm rain
- Mysłowice in AprilPoland · 23 kmHigh 13.8°C · Low 3.8°C · 52 mm rain
- Tychy in AprilPoland · 24 kmHigh 13.7°C · Low 3.6°C · 50 mm rain
- Jaworzno in AprilPoland · 29 kmHigh 13.4°C · Low 3.5°C · 52 mm rain
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 limitsHow 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.