Select units of measurement for the temperature and rainfall tables (metric or imperial).
Average weather, temperature, rainfall, sunshine hours
The climate of Ostrava, a city located at 230 meters (750 feet) above sea level in eastern Czechia, is
moderately continental, characterized by cold winters, with temperatures often below freezing (0 °C or 32 °F), and mild to pleasantly warm summers.
Winter is cold and gray. Snowfalls are frequent, but generally not abundant.
Sometimes, cold waves from Siberia can occur, during which the temperatures can drop to -15 °C (5 °F) or below. The temperature dropped to -29 °C (-20 °F) in January 1985.
In
summer, the temperatures are pleasant and suitable for outdoor activities, although sometimes there can be rains and thunderstorms.
Every now and then (and more often in recent years due to global warming), there can be short hot periods, with maximum temperatures exceeding 30 °C (86 °F). The temperature reached 37 °C (98.5 °F) in August 1992 and in August 2013.
Best Time
The
best time to visit Ostrava runs from mid-May to mid-September, since it is the warmest and sunniest period of the year. Sometimes, it can be hot in July and August, while in other circumstances, nights can be cool or even a little cold even in these months, so it can be useful to bring a sweatshirt or sweater and a light jacket for the evening.
Ostrava - Climate data
In Ostrava, the
average temperature of the coldest month (January) is of
-1.3 °C, that of the warmest month (July) is of
19.2 °C. Here are the average temperatures.
Ostrava - Average temperatures (1991-2020) |
| Month | Min | Max | Mean |
|---|
| January | -4.4 | 1.8 | -1.3 |
|---|
| February | -3.6 | 3.9 | 0.1 |
|---|
| March | -0.7 | 8.6 | 3.9 |
|---|
| April | 3.1 | 15 | 9.1 |
|---|
| May | 7.4 | 19.4 | 13.4 |
|---|
| June | 11.3 | 23.1 | 17.2 |
|---|
| July | 13.1 | 25.3 | 19.2 |
|---|
| August | 12.8 | 25.3 | 19 |
|---|
| September | 8.7 | 19.6 | 14.2 |
|---|
| October | 4.8 | 13.9 | 9.3 |
|---|
| November | 1.2 | 8 | 4.6 |
|---|
| December | -2.9 | 2.8 | -0.1 |
|---|
| Year | 4.3 | 13.9 | 9.1 |
|---|
amounts to
695 millimeters per year: so, it is at an intermediate level. It ranges from
30 millimeters in the driest months (January, February) to
95 millimeters in the wettest one (July). Here is the average precipitation.
Ostrava - Average precipitation| Month | Days |
|---|
| January | 30 | 7 |
|---|
| February | 30 | 8 |
|---|
| March | 40 | 8 |
|---|
| April | 45 | 8 |
|---|
| May | 80 | 11 |
|---|
| June | 90 | 11 |
|---|
| July | 95 | 10 |
|---|
| August | 85 | 9 |
|---|
| September | 70 | 9 |
|---|
| October | 40 | 7 |
|---|
| November | 45 | 9 |
|---|
| December | 40 | 9 |
|---|
| Year | 695 | 106 |
|---|
There are on average around 1720
sunshine hours per year. Here are the average hours of sunshine per day.
Ostrava - Sunshine hours| Month | Average | Total |
|---|
| January | 2 | 55 |
|---|
| February | 2.5 | 75 |
|---|
| March | 4 | 125 |
|---|
| April | 5.5 | 165 |
|---|
| May | 7 | 220 |
|---|
| June | 7.5 | 220 |
|---|
| July | 7.5 | 235 |
|---|
| August | 7 | 225 |
|---|
| September | 5.5 | 160 |
|---|
| October | 4 | 130 |
|---|
| November | 2 | 65 |
|---|
| December | 1.5 | 45 |
|---|
| Year | 4.7 | 1720 |
|---|
Ostrava - Weather by month
Based on the period 1991-2020
January, the coldest month of the year, is generally a very cold month. The average temperature is of
-1.3 °C, with a minimum of
-4.4 °C and a maximum of
1.8 °C.
On the coldest nights of the month, the temperature usually drops to around
-16 °C. However, it dropped to
-27 °C in January 2006.
On the warmest days of the month, the temperature usually reaches around
9.5 °C. However, it reached
14.2 °C in January 1993.
Precipitation amounts to
30 mm, distributed over 7 days.
The day lasts on average 8 hours and 40 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 21% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
16.3 kph.
February is generally a cold month. The average temperature is of 0.1 °C, with a minimum of -3.6 °C and a maximum of 3.9 °C.
On the coldest nights of the month, the temperature usually drops to around -13.5 °C. However, it dropped to -22.4 °C in February 1991.
On the warmest days of the month, the temperature usually reaches around 11.5 °C. However, it reached 15.8 °C in February 2008.
Precipitation amounts to 30 mm, distributed over 8 days.
The day lasts on average 10 hours and 5 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 26% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of 14.9 kph.
March is generally a cold month. The average temperature is of 3.9 °C, with a minimum of -0.7 °C and a maximum of 8.6 °C.
On the coldest nights of the month, the temperature usually drops to around -8 °C. However, it dropped to -19 °C in March 2018.
On the warmest days of the month, the temperature usually reaches around 18 °C. However, it reached 21 °C in March 2014.
Precipitation amounts to 40 mm, distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of 14.2 kph.
April is generally a mild month. The average temperature is of 9.1 °C, with a minimum of 3.1 °C and a maximum of 15 °C.
On the coldest nights of the month, the temperature usually drops to around -3.5 °C. However, it dropped to -7.8 °C in April 2020.
On the warmest days of the month, the temperature usually reaches around 24 °C. However, it reached 29 °C in April 2012.
Precipitation amounts to 45 mm, distributed over 8 days.
The day lasts on average 13 hours and 50 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 40% of the time.
The average humidity is 67%.
The average wind speed is of 11.8 kph.
May is generally a mild month. The average temperature is of 13.4 °C, with a minimum of 7.4 °C and a maximum of 19.4 °C.
On the coldest nights of the month, the temperature usually drops to around 1 °C. However, it dropped to -2.3 °C in May 2011.
On the warmest days of the month, the temperature usually reaches around 27.5 °C. However, it reached 32 °C in May 2005.
Precipitation amounts to 80 mm, distributed over 11 days.
The day lasts on average 15 hours and 30 minutes. So the days are long.
There are on average 7 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of 11 kph.
June is generally a very mild month. The average temperature is of 17.2 °C, with a minimum of 11.3 °C and a maximum of 23.1 °C.
On the coldest nights of the month, the temperature usually drops to around 5.5 °C. However, it dropped to 2 °C in June 2008.
On the warmest days of the month, the temperature usually reaches around 31 °C. However, it reached 35 °C in June 2016.
Precipitation amounts to 90 mm, distributed over 11 days.
The day lasts on average 16 hours and 20 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 7.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of 10.4 kph.
July, the warmest month of the year, is generally a warm month. The average temperature is of 19.2 °C, with a minimum of 13.1 °C and a maximum of 25.3 °C.
On the coldest nights of the month, the temperature usually drops to around 7.5 °C. However, it dropped to 4 °C in July 2011.
On the warmest days of the month, the temperature usually reaches around 32.5 °C. However, it reached 36.7 °C in July 1994.
Precipitation amounts to 95 mm, distributed over 10 days.
The day lasts on average 15 hours and 50 minutes. So the days are long.
There are on average 7.5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 70%.
The average wind speed is of 10.3 kph.
August is generally a warm month. The average temperature is of 19 °C, with a minimum of 12.8 °C and a maximum of 25.3 °C.
On the coldest nights of the month, the temperature usually drops to around 6.5 °C. However, it dropped to 4 °C in August 1993.
On the warmest days of the month, the temperature usually reaches around 32 °C. However, it reached 37 °C in August 2013.
Precipitation amounts to 85 mm, distributed over 9 days.
The day lasts on average 14 hours and 20 minutes. So the days are long.
There are on average 7 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of 9.6 kph.
September is generally a mild month. The average temperature is of 14.2 °C, with a minimum of 8.7 °C and a maximum of 19.6 °C.
On the coldest nights of the month, the temperature usually drops to around 2 °C. However, it dropped to -0.6 °C in September 2018.
On the warmest days of the month, the temperature usually reaches around 27 °C. However, it reached 34 °C in September 2015.
Precipitation amounts to 70 mm, distributed over 9 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of 10.6 kph.
October is generally a mild month. The average temperature is of 9.3 °C, with a minimum of 4.8 °C and a maximum of 13.9 °C.
On the coldest nights of the month, the temperature usually drops to around -2.5 °C. However, it dropped to -7.6 °C in October 2003.
On the warmest days of the month, the temperature usually reaches around 22.5 °C. However, it reached 26.2 °C in October 2019.
Precipitation amounts to 39.9 mm, distributed over 7 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of 12.1 kph.
November is generally a quite cold month. The average temperature is of 4.6 °C, with a minimum of 1.2 °C and a maximum of 8 °C.
On the coldest nights of the month, the temperature usually drops to around -6 °C. However, it dropped to -13.8 °C in November 1993.
On the warmest days of the month, the temperature usually reaches around 17 °C. However, it reached 23 °C in November 2008.
Precipitation amounts to 45 mm, distributed over 9 days.
The day lasts on average 9 hours and 0 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 23% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of 14.1 kph.
December is generally a very cold month. The average temperature is of -0.1 °C, with a minimum of -2.9 °C and a maximum of 2.8 °C.
On the coldest nights of the month, the temperature usually drops to around -13 °C. However, it dropped to -25.8 °C in December 1996.
On the warmest days of the month, the temperature usually reaches around 11 °C. However, it reached 16.1 °C in December 2019.
Precipitation amounts to 40 mm, distributed over 9 days.
The day lasts on average 8 hours and 10 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 1.5 hours of sunshine per day. So, the sun shines 18% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of 16.2 kph.