Weather Forecast for Brno

Jihomoravsky kraj, Czech Republic

select dropwdown icon
Share
Sunny

Current Weather - Brno: 22°C

Jihomoravsky kraj, Czech Republic

Sunny

Feels like 22°C

Wind

5 km/h SW

Humidity

61%

Pressure

1011 mb

UV Index

2

Visibility

10 km

Overcast

Overcast

Thursday, August 20, 2026

High

31°C

Low

18°C

Rain Chance

64%

Hourly Forecast

Sunny 22°C
10:00
Sunny 25°C
11:00
Sunny 27°C
12:00
Sunny 29°C
13:00
Partly Cloudy 31°C
14:00
Overcast 30°C
15:00
Overcast 30°C
16:00
Patchy rain nearby 28°C
17:00
Light rain shower 25°C
18:00
Light rain shower 20°C
19:00
Light rain shower 19°C
20:00
Patchy rain nearby 19°C
21:00
Partly Cloudy 18°C
22:00
Patchy rain nearby 18°C
23:00
Aug 21

Day Statistics

Maximum Wind

25 km/h

Humidity

66%

Precipitation

4 mm

UV Index

6

Visibility

10 km

Rain Chance

64%

Snow Chance

0%

Sun & Moon

Sunrise

05:52 AM

Sunset

08:01 PM

Moonrise

03:32 PM

Moonset

10:59 PM

Moon Phase

First Quarter

Moon Illumination

58%

Air Quality

PM2.5

6.7

μg/m³

PM10

9.2

μg/m³

NO₂

6

μg/m³

O₃

63.9

μg/m³

SO₂

0.5

μg/m³

CO

171.7

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

167.76

Diffuse Radiation

87.09

DNI

0

GTI

0

Weather Alerts

Olomoucký kraj (Hranice, Konice, Lipník nad Bečvou, Litovel, Olomouc, Prostějov, Přerov, Šternberk) Aug 19, 10:38 AM - Aug 21, 02:59 AM
Severity: Moderate Urgency: Future

Risk of severe thunderstorms. Possible local property damage and complications, especially in the energy industry and transport. Potential for local flooding, especially of low-lying areas. Local wind damage to roofs, fences, soft shelters and trees. Local power outages. Some travel delays. Driving conditions difficult. Possible crop damage from small hail. Risk of fire caused by lightning strike. Risk of injury from flying or falling objects, and lightning strikes.

Beware of lightning strikes and flying or falling objects (especially branches). Seek shelter in a building equipped with lightning protection. Outdoors, take cover in dense forest or low vegetation; avoid water bodies, hilltops, metal structures, isolated trees, and rock overhangs. When driving reduce speed. Observe weather warnings, weather radar (www.chmi.cz or mobile apps) and local flood risk https://produkty.chmi.cz/ffi.

Event: Moderate Thunderstorm Impact Certainty: Likely Category: Met

When to visit Brno?

Plan your perfect trip with our month-by-month weather guide

⭐ Best months: June July August

January

☀️
2°C
💧
6 Days of rain
❄️
Very heavy snowfall
🥶 Coldest month

February

☀️
4°C
💧
5 Days of rain
❄️
Very heavy snowfall
🌵 Driest month

March

☀️
9°C
💧
7 Days of rain
❄️
Very heavy snowfall

April

☀️
15°C
💧
6 Days of rain
❄️
Moderate snowfall

May

☀️
19°C
💧
10 Days of rain
❄️
No snowfall

June

☀️
23°C
💧
11 Days of rain
❄️
No snowfall
Best time to visit

July

☀️
25°C
💧
13 Days of rain
❄️
No snowfall
Best time to visit
🔥 Hottest month
🌧 Wettest month,

August

☀️
25°C
💧
10 Days of rain
❄️
No snowfall
Best time to visit

September

☀️
20°C
💧
10 Days of rain
❄️
No snowfall

October

☀️
14°C
💧
7 Days of rain
❄️
Light snow possible

November

☀️
7°C
💧
7 Days of rain
❄️
Heavy snow expected

December

☀️
2°C
💧
6 Days of rain
❄️
Very heavy snowfall