Last updated: March 2, 2024
The weather in Ostrava, Czech Republic, during April is characterized by an average temperature of 9°C (48°F). Highs can soar to 23°C (74°F), while lows may dip to -3°C (27°F). Typically, the humidity level in Ostrava throughout April hovers around 76%.
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Average temperature
Maximum temperature
Humidity
In April, Ostrava averages 60 mm (2.4 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 13 hours 47 minutes of daylight, with the sun shining for approximately 10 hours 55 minutes each day. Additionally, there is a 34% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In April, the UV Index in Ostrava reaches a maximum of 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 2 | 3 | 4 | 5 | 5 | 6 | 5 | 4 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||