September Weather in Ostrava

Last updated: March 2, 2024

The weather in Ostrava, Czech Republic, during September is characterized by an average temperature of 15°C (59°F). Highs can soar to 28°C (83°F), while lows may dip to 4°C (40°F). Typically, the humidity level in Ostrava throughout September hovers around 67%.

4°C (40°F)

Minimum temperature

15°C (59°F)

Average temperature

28°C (83°F)

Maximum temperature

67%

Humidity

Precipitation and Sunshine hours

In September, Ostrava averages 103 mm (4.1 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 12 hours 33 minutes of daylight, with the sun shining for approximately 10 hours 19 minutes each day. Additionally, there is a 42% probability of sunny days during this period.

103 mm (4.1 inches)

Precipitation

13 rainy days

Rainy days

10 hours 19 minutes

Sunshine hours

42%

Chance of sun

UV Index

In September, the UV Index in Ostrava reaches a maximum of 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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 1 2 4 5 6 6 5 4 3 1 1 1
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

Compare Ostrava's Climate with Cities Worldwide