Brno, Jihomoravsky Kraj, Czechia Climate Change Severity

38
Moderate
The current climate change severity in Brno is Moderate, with a -17.8% improvement in the climate score compared to last 15 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Brno Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Brno temperature has changed by around +2.3%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jul. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
3137
19.3%
cloudyCloudy
4938
-22.4%
rainyRainy
9560
-36.8%
snowySnowy
43
-25%
mistyMisty
00
0%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 15 years, Brno has experienced measurable improvements in key climate parameters, contributing to the current severity score of 38 (within the Moderate severity category). This suggests improving climate conditions compared to previous years. Here’s a breakdown of the specific changes observed:

Severity Score

38/100

Moderate

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Brno experienced significant changes:

Temperature change of

+0.2 °C

Variation in annual rainfall

-15.2 %

Change in average humidity

-6.4 %

PM2.5 levels surged by

-2.8 %

Heatwave changed by

-0.8 day(s)

Coldwave changed by

-5.4 day(s)

Wind speeds changed by

+1.6 km/h

These indicators show reduced climate volatility, offering a valuable window to reinforce sustainable practices and strengthen long-term climate resilience. As the severity shifts toward Moderate, it is important to maintain momentum in climate adaptation efforts.

Check how we calculate Climate Change Severity
Based on data from Jan. to Jul.

Brno Weather Forecast 30 Days (August - September 2025)
Brno, Jihomoravsky Kraj, Czechia

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sun. 10, Aug.
sunnySunny
Temperature Icon31°/14°
Humidity Icon52%
Wind Icon23km/h
Mon. 11, Aug.
sunnySunny
Temperature Icon27°/12°
Humidity Icon51%
Wind Icon10km/h
Tue. 12, Aug.
sunnySunny
Temperature Icon29°/13°
Humidity Icon46%
Wind Icon12km/h
Wed. 13, Aug.
sunnySunny
Temperature Icon33°/14°
Humidity Icon40%
Wind Icon11km/h
Thu. 14, Aug.
sunnySunny
Temperature Icon36°/18°
Humidity Icon43%
Wind Icon16km/h
Fri. 15, Aug.
sunnySunny
Temperature Icon35°/20°
Humidity Icon39%
Wind Icon23km/h
Sat. 16, Aug.
sunnySunny
Temperature Icon30°/17°
Humidity Icon61%
Wind Icon18km/h
Sun. 17, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon31°/16°
Humidity Icon59%
Wind Icon9km/h
Mon. 18, Aug.
sunnySunny
Temperature Icon32°/17°
Humidity Icon63%
Wind Icon9km/h
Tue. 19, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon30°/17°
Humidity Icon67%
Wind Icon16km/h
Wed. 20, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/11°
Humidity Icon74%
Wind Icon22km/h
Thu. 21, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/11°
Humidity Icon58%
Wind Icon22km/h
Fri. 22, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/12°
Humidity Icon69%
Wind Icon22km/h
Sat. 23, Aug.
cloudyCloudy
Temperature Icon22°/8°
Humidity Icon66%
Wind Icon14km/h
Sun. 24, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/16°
Humidity Icon66%
Wind Icon16km/h
Mon. 25, Aug.
moderate rain at timesModerate rain at times
Temperature Icon25°/15°
Humidity Icon66%
Wind Icon14km/h
Tue. 26, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/15°
Humidity Icon67%
Wind Icon16km/h
Wed. 27, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/15°
Humidity Icon68%
Wind Icon18km/h
Thu. 28, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon25°/14°
Humidity Icon67%
Wind Icon16km/h
Fri. 29, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon24°/14°
Humidity Icon68%
Wind Icon14km/h
Sat. 30, Aug.
moderate rain at timesModerate rain at times
Temperature Icon24°/14°
Humidity Icon66%
Wind Icon16km/h
Sun. 31, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/13°
Humidity Icon66%
Wind Icon18km/h
Mon. 1, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/13°
Humidity Icon70%
Wind Icon19km/h
Tue. 2, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/13°
Humidity Icon70%
Wind Icon15km/h
Wed. 3, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/13°
Humidity Icon70%
Wind Icon15km/h
Thu. 4, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/13°
Humidity Icon71%
Wind Icon14km/h
Fri. 5, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon23°/13°
Humidity Icon68%
Wind Icon16km/h
Sat. 6, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/12°
Humidity Icon68%
Wind Icon15km/h
Sun. 7, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon22°/12°
Humidity Icon67%
Wind Icon14km/h
Mon. 8, Sep.
moderate rain at timesModerate rain at times
Temperature Icon22°/12°
Humidity Icon66%
Wind Icon16km/h
Tue. 9, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/13°
Humidity Icon66%
Wind Icon15km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 14, Aug.

36.2°C

Low will be onSat. 23, Aug.

7.7°C

HumidityHumidity

High will be onWed. 20, Aug.

74%

Low will be onFri. 15, Aug.

39%

Wind SpeedWind Speed

High will be onFri. 15, Aug.

23km/h

Low will be onSun. 17, Aug.

9km/h

PrecipitationPrecipitation

High will be onMon. 1, Sep.

7mm

Low will be onSat. 23, Aug.

0.03mm

Ultraviolet IndexUV

High will be onFri. 15, Aug.

7

Low will be onSun. 10, Aug.

2

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