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Contents
- The climate of Brno
- The best time to visit Brno
- The worst time to visit Brno
- Spring weather in Brno
- Summer weather in Brno
- Autumn weather in Brno
- Winter weather in Brno
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Brno
Nestled in the heart of the Czech Republic, Brno’s climate can be classified as Cfb, which translates to a marine west coast climate with warm summers. This type of weather is one of the key aspects of the city's natural environment. The ambient conditions witness a slight fluctuation throughout the year, with temperatures ranging from a low -3.9°C (25°F) during the coldest months to a maximum of 26.1°C (79°F) during the warmest periods, making the city quite moderate and temperate.
Each climatological parameter showcases its distinct seasonal pattern. From maximum snowfall reaching 74mm (2.91") in the peak winter months to the absence of snow from May to September, it presents an intriguing contrast. These snowfall changes correspond with the number of snowfall days, which range from 10.3 in the snowy season to nil during the summer and early autumn months.
When it comes to precipitation, an interesting rainfall pattern emerges. Rainfall varies from 13mm (0.51") in the drier months to 41mm (1.61") during the wettest periods, while the number of rainfall days hovers between 6.3 and 13.8. Interestingly, relative humidity follows a similar pattern, fluctuating from 65% to 87% annually.
The amount of sunshine Brno experiences sees an increase from 3.9 hours per day during the year’s early phase to a delightful 10.9 hours in the peak of summer. Comparatively, the daylight duration varies between 8.3 hours in the less bright months to 16.2 during the summer equinox and subsides back to 8.3 hours towards the end of the year.
Each climatological parameter showcases its distinct seasonal pattern. From maximum snowfall reaching 74mm (2.91") in the peak winter months to the absence of snow from May to September, it presents an intriguing contrast. These snowfall changes correspond with the number of snowfall days, which range from 10.3 in the snowy season to nil during the summer and early autumn months.
When it comes to precipitation, an interesting rainfall pattern emerges. Rainfall varies from 13mm (0.51") in the drier months to 41mm (1.61") during the wettest periods, while the number of rainfall days hovers between 6.3 and 13.8. Interestingly, relative humidity follows a similar pattern, fluctuating from 65% to 87% annually.
The amount of sunshine Brno experiences sees an increase from 3.9 hours per day during the year’s early phase to a delightful 10.9 hours in the peak of summer. Comparatively, the daylight duration varies between 8.3 hours in the less bright months to 16.2 during the summer equinox and subsides back to 8.3 hours towards the end of the year.
The best time to visit Brno
There is no "one-size-fits-all" answer to when the ideal time to visit Brno is, as it significantly depends on personal weather preferences. However, considering temperature, rainfall, and daylight parameters, summer months prove particularly pleasant. During this time, from June to August, one can enjoy temperatures from 23°C (73.4°F) to 26.1°C (79°F) during the day, coupled with minimal rainfall and the longest daylight durations ranging from 15.3 hours to 16.2 hours per day.
The worst time to visit Brno
Opposing the summer delight, the winter months are arguably less inviting to tourists. With the average minimum temperatures plunging to -3.9°C (25°F) and maximum snowfall at 74mm (2.91"), coupled with the shortest daylight duration at 8.3 hours, visiting Brno from December to February demands to brave colder temperatures.
Spring weather in Brno
Spring unfolds in Brno from March to May, with temperatures spanning from 1.8°C (35.2°F) at night to a mild 18.8°C (65.8°F) during the day. Precipitation sees a significant increase in May, up to 41mm (1.61") with 13.8 rainfall days, while snowfall almost disappears post-March. Daylight duration gradually increases in these months, lending Brno longer and more pleasant days.
Summer weather in Brno
Summers in Brno, lasting from June to August, presents the warmest climatic conditions with least rainfall. Daytime temperatures vary from 23°C (73.4°F) to 26.1°C (79°F), while nighttimes are comfortable at around 14.1°C (57.4°F) to 14.7°C (58.5°F). Rainfall reduces to 26mm (1.02") by July while there are zero instances of snowfall, making it an excellent time for outdoor activities.
Autumn weather in Brno
The Autumn months in Brno, from September to November, witness a slide in temperatures, moving from a day high of 20.2°C (68.4°F) in September to 8.2°C (46.8°F) in November. Night temperatures similarly drop to 6.3°C (43.3°F) towards November. The rainfall experiences a cutback to around 18mm (0.71") in September and sits reasonably consistent thereafter.
Winter weather in Brno
Winter in Brno stretches from December to February, with temperatures ranging from -1.9°C (28.6°F) to 2.4°C (36.3°F). This period documents the highest snowfall values, going as high as 74mm (2.91") in December, coexisting with the most extended snow days at 10.3. Rainfall moderately varies during these months while daylight duration drops to the year's shortest intervals. Despite the chilly air, the winter charm is definitely unique in Brno.
Weather in January
The year in Brno, Czech Republic, begins with chilly temperatures. There is a stark constrast in the weather conditions between January and the following month, with February displaying slightly higher temperatures and a lower snowfall. Weather in January »
Weather in February
In February, Brno goes through a transition in weather patterns. As compared to the previous month, there is a visible decrease in snowfall paired with a slight rise in overall temperature. The falling levels of snowfall, down to 27mm (1.06") in February, allow outdoor activities to slowly gain traction again. Weather in February »
Weather in March
The weather conditions in Brno show considerable improvement in March as winter gradually gives way to spring. A significant difference is observed in snowfall trends between March and the preceding month, with much lesser snowfall in March. Weather in March »
Weather in April
April brings a breath of fresh air to Brno as spring sets in. Compared to the preceding cold and damp month of March, April witnesses a considerable rise in temperature, leading to pleasant weather. The precipitation in this month also shifts from snow to an average rainfall of 13mm (0.51"). Weather in April »
Weather in May
Brno delights in the full bloom of spring during May, with a marked change in weather conditions from the previous month. Attendees should prepare for a significant increase in rainfall from April to May, with the levels rising to an average of 41mm (1.61"). Weather in May »
Weather in June
June initiates the summer season in Brno, with appreciable differences in the weather from the preceding month. Despite the increase in temperature, the rainfall lingers with an average of 34mm (1.34"). Warmer temperatures, increased daylight, and abundant sunshine define the typical June weather. Weather in June »
Weather in July
July, the middle of summer, features the warmest weather in the city. The temperature disparity from June to July is noteworthy, with July witnessing highs of 25.6°C (78.1°F). The increased outdoor activities are complemented by decreased levels of rainfall. Weather in July »
Weather in August
In August, Brno enjoys a healthy summer, being the only month with the peak temperature exceeding July's high of 25.6°C (78.1°F) to reach 26.1°C (79°F). Compared to the previous month, it maintains similar weather conditions with slightly reduced humidity. Weather in August »
Weather in September
September sees Brno transitioning from summer to autumn. The weather fluctuates significantly from August, with a considerable reduction in temperatures. Despite September’s 20.2°C (68.4°F) average temperatures, the month signals the commencement of cooler autumn weather. Weather in September »
Weather in October
October truly ushers in the heart of Autumn in Brno. Weather variables show a shift from the preceding month, with a consistent drop in temperature and daylight hours. The decreased sunlight indicates the approaching winter. Nightly lows begin to dip, hinting at the cold days ahead. Weather in October »
Weather in November
November’s advent announces the arrival of late fall. The weather conditions in Brno contrast significantly from October, with a substantial drop in temperatures and a reduction in sunshine hours. The first traces of winter are seen, with Brno experiencing 7mm (0.28") of snowfall towards the month's end. Weather in November »
Weather in December
December concludes the year with full-fledged winter setting in across Brno. The weather contrasts notably with that of November, with lower temperatures, decreased daylight hours, and increased snowfall. Heavier snowfall measuring 30mm (1.18") becomes a common sight, adding to the winter wonderland charm. Weather in December »
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Brno?
During the coldest month in Brno, January, temperatures average a high of 0.5°C (32.9°F) and a low of -3.9°C (25°F).
What is the most humid month in Brno?
The most humid month is January, with an average relative humidity of 87%.
How many days does it rain in Brno?
In Brno, Czech Republic, during the entire year, the rain falls for 115.7 days and collects up to 251mm (9.88") of precipitation.
When does it snow in Brno?
Months with snowfall in Brno, Czech Republic, are January through April, October through December.
What is the snowiest month in Brno?
January is the month with the most snowfall. Snow falls for 10.3 days and accumulates 74mm (2.91") of snow.
How many days does it snow in Brno?
Throughout the year, in Brno, there are 26.6 snowfall days, and 153mm (6.02") of snow is accumulated.
What are the months with the least sunshine in Brno?
January and February, with an average of 3.9h of sunshine, are months with the least sunshine in Brno.
What are the months with the lowest UV index in Brno?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Brno, Czech Republic.
What is the driest month in Brno?
February and April are months with the least rain when the rain falls for 7.1 days and typically aggregates up to 13mm (0.51") of rain.
What is the rainiest month in Brno?
May is the month with the most rainfall in Brno. Rain falls for 13.8 days and accumulates 41mm (1.61") of precipitation.
When it does not snow in Brno?
May through September are months without snowfall in Brno.
When are the longest days in Brno?
With an average of 16h and 12min of daylight, June has the longest days of the year.
What is the month with the highest UV index in Brno?
The month with the highest UV index in Brno, Czech Republic, is July, with an average maximum UV index of 6.
What are the warmest months in Brno?
August, marked by an average high-temperature of 26.1°C (79°F) and a low-temperature of 14.7°C (58.5°F), is the warmest month.
What is the least humid month in Brno?
The least humid month in Brno, Czech Republic, is August, with an average relative humidity of 65%.
What month has the most sunshine in Brno?
With an average of 10.9h of sunshine, August has the most sunshine of the year.
When is Daylight Saving Time (DST) in Brno?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Brno, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the month with the shortest days in Brno?
The month with the shortest days in Brno is December, with an average of 8h and 18min of daylight.
Average temperature
Brno, Czech Republic
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (0.5°C).
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).
Average pressure
Brno, Czech Republic
- Average pressure in January:
1018.5mbar - Average pressure in February:
1017.4mbar - Average pressure in March:
1016.7mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1015.3mbar - Average pressure in June:
1015mbar
- Average pressure in July:
1015.1mbar - Average pressure in August:
1016.6mbar - Average pressure in September:
1018.1mbar - Average pressure in October:
1019mbar - Average pressure in November:
1016.7mbar - Average pressure in December:
1019.6mbar
The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is June (1015mbar).
Average wind speed
Brno, Czech Republic
- Average wind speed in January:
11.6km/h - Average wind speed in February:
13.6km/h - Average wind speed in March:
13.7km/h - Average wind speed in April:
12.7km/h - Average wind speed in May:
12.2km/h - Average wind speed in June:
11km/h
- Average wind speed in July:
10km/h - Average wind speed in August:
9.6km/h - Average wind speed in September:
10.4km/h - Average wind speed in October:
11.4km/h - Average wind speed in November:
12.7km/h - Average wind speed in December:
11.7km/h
The windiest month (with the highest average wind speed) is March (13.7km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity
Brno, Czech Republic
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (65%).
Average rainfall
Brno, Czech Republic
The wettest month (with the highest rainfall) is May (41mm).
The driest months (with the least rainfall) are February and April (13mm).
Average rainfall days
Brno, Czech Republic
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
7.1 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
9.3 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
13.2 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
9 days - Average rainfall days in September:
8.3 days - Average rainfall days in October:
8.3 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
9.5 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (6.3 days).
Average snowfall
Brno, Czech Republic
The month with the highest snowfall is January (74mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days
Brno, Czech Republic
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
5.7 days - Average snowfall days in March:
2.4 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.9 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Brno, Czech Republic
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 2min - Average daylight in June:
16h and 1min
- Average daylight in July:
15h and 5min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 1min - Average daylight in December:
8h and 2min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
9h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 3min - Average sunshine in November:
4h and 2min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days
Brno, Czech Republic
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
15.9 days - Average sunshine days in March:
19.4 days - Average sunshine days in April:
18.3 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
14.5 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
19.6 days - Average sunshine days in September:
19.7 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
16.1 days - Average sunshine days in December:
15.2 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (14.3 days).
Average UV index
Brno, Czech Republic
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Brno, Czech Republic
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Brno, Czech Republic
The months with the highest visibility are April and August (10km).
The months with the lowest visibility are January and December (8km).
Brno, Czech Republic
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