Ostrava
Czech Republic
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Ostrava, Czech Republic

The first month of the autumn, September, is still a comfortable month in Ostrava, Czech Republic, with average temperature varying between 19°C (66.2°F) and 9°C (48.2°F).

Temperature

In Ostrava, the average high-temperature marginally drops, from a moderately hot 23°C (73.4°F) in August, to an enjoyable 19°C (66.2°F). In Ostrava, Czech Republic, in September, the average low-temperature is 9°C (48.2°F).

Rainfall

In September, the rain falls for 12 days. Throughout September, 57mm (2.2") of precipitation is accumulated. In Ostrava, during the entire year, the rain falls for 162 days and collects up to 684mm (26.9") of precipitation.

Daylight

In September, the average length of the day is 12.6h.

Sunshine

In Ostrava, the average sunshine is 5h.

UV index

The average daily maximum UV index in Ostrava is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Ostrava?

The average high-temperature, in September, in Ostrava, Czech Republic, is 19°C (66.2°F), while the average low-temperature is 9°C (48.2°F).

How many days does it rain in September in Ostrava?

In Ostrava, Czech Republic, in September, during 12 rainfall days, 57mm (2.2") of precipitation is typically accumulated.

How many hours of daylight does Ostrava have in September?

In September, the average length of the day in Ostrava, Czech Republic, is 12.6h.

How many hours of sunshine does Ostrava have in September?

In September, the average sunshine in Ostrava is 5h.

What is the UV index intensity in September in Ostrava?

In Ostrava, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.
Average temperature in September - Ostrava, Czech Republic
  • Average high temperature in September: 19°C

The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (1°C).

  • Average low temperature in September: 9°C

Months with the highest average low temperature are July and August (12°C).
The coldest month (with the lowest average low temperature) is January (-5°C).

Average rainfall in September - Ostrava, Czech Republic
  • Average rainfall in September: 57mm

The wettest month (with the highest rainfall) is July (90mm).
The driest month (with the lowest rainfall) is January (32mm).

Average rainfall days in September - Ostrava, Czech Republic
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is June (16 days).
Months with the lowest number of rainy days are February, March, September and October (12 days).

Average daylight in September / Average sunshine in September - Ostrava, Czech Republic
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.3h).
The month with shortest days is December (Average daylight: 8.2h).

  • Average sunshine in September: 5h

Months with most sunshine are May, June, July and August (Average sunshine: 7h).
The month with least sunshine is December (Average sunshine: 1h).

Average UV index in September - Ostrava, Czech Republic
  • Average UV index in September: 4

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 1).