Climate averages 1991–2020
Ostrava weather
in April.
A cool, moderately wet month: the 6th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Ostrava: daytime highs average 14.0°C and nights cool to about 3.8°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 57 mm of rain on roughly 11 days, which makes April a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 43 min on an average April day.
The nearest other city in this atlas is Havířov (13 km away). In April its highs average 13.6°C, about as warm as Ostrava, with 61 mm of rain.
Among the 12 cities listed in Czechia, Ostrava ranks joint 8th of 12 for the warmest April highs and 11th of 12 for the driest April (rainfall, lowest first). The mean April high of those 12 cities is 14.1°C; Ostrava is 0.1°C cooler than that mean.
From April to May, average highs rise by 4.3°C to 18.4°C, and monthly rainfall rises from 57 mm to 90 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
Ostrava climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.4°C-4.0°C | -4.0°C | 47 | 11.1 | 8.69 h |
| February | 3.3°C-3.5°C | -3.5°C | 46 | 11.0 | 10.110 h |
| March | 8.0°C-0.5°C | -0.5°C | 55 | 12.1 | 11.812 h |
| April, selected | 14.0°C3.8°C | 3.8°C | 57 | 10.8 | 13.714 h |
| May | 18.4°C8.8°C | 8.8°C | 90 | 14.0 | 15.415 h |
| June | 21.7°C12.6°C | 12.6°C | 100 | 13.5 | 16.316 h |
| July | 23.7°C14.7°C | 14.7°C | 114 | 14.2 | 15.916 h |
| August | 23.9°C14.5°C | 14.5°C | 85 | 11.7 | 14.514 h |
| September | 18.7°C10.4°C | 10.4°C | 82 | 11.0 | 12.713 h |
| October | 13.3°C6.3°C | 6.3°C | 59 | 10.3 | 10.811 h |
| November | 7.7°C2.3°C | 2.3°C | 53 | 10.5 | 9.19 h |
| December | 2.5°C-2.3°C | -2.3°C | 49 | 11.1 | 8.28 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
- Havířov in AprilCzechia · 13 kmHigh 13.6°C · Low 3.5°C · 61 mm rain
- Jastrzębie Zdrój in AprilPoland · 25 kmHigh 13.9°C · Low 3.8°C · 51 mm rain
- Rybnik in AprilPoland · 35 kmHigh 14.0°C · Low 3.8°C · 51 mm rain
- Bielsko-Biala in AprilPoland · 55 kmHigh 13.4°C · Low 3.3°C · 73 mm rain
- Gliwice in AprilPoland · 59 kmHigh 14.2°C · Low 4.3°C · 50 mm rain
- Tychy in AprilPoland · 59 kmHigh 13.7°C · Low 3.6°C · 50 mm rain
- Zabrze in AprilPoland · 65 kmHigh 13.9°C · Low 4.0°C · 50 mm rain
- Katowice in AprilPoland · 71 kmHigh 13.7°C · Low 3.9°C · 50 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 Ostrava) is explained once on the Ostrava year overview and on the Sources, method and limits page.