Weather Forecast for Karlovy Vary
Karlovarsky kraj, Czech Republic
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Current Weather - Karlovy Vary: 16°C
Current Weather - Karlovy Vary: 16°C
Karlovarsky kraj, Czech Republic
Sunny
Feels like 17°C
Wind
4 km/h SSW
Humidity
85%
Pressure
1011 mb
UV Index
0
Visibility
10 km
Overcast
Friday, August 21, 2026
High
22°C
Low
10°C
Rain Chance
80%
Hourly Forecast
16°C
15°C
17°C
19°C
20°C
21°C
21°C
22°C
21°C
19°C
18°C
13°C
12°C
11°C
10°C
10°C
10°C
Day Statistics
Maximum Wind
23 km/h
Humidity
72%
Precipitation
25 mm
UV Index
5
Visibility
9 km
Rain Chance
80%
Snow Chance
0%
Sun & Moon
Sunrise
06:06 AM
Sunset
08:16 PM
Moonrise
04:59 PM
Moonset
11:53 PM
Moon Phase
First Quarter
Moon Illumination
69%
Air Quality
PM2.5
4.8
μg/m³
PM10
6.4
μg/m³
NO₂
4.4
μg/m³
O₃
60.8
μg/m³
SO₂
0.6
μg/m³
CO
151.4
μg/m³
Solar Radiation Data
Shortwave Radiation
4.5
Diffuse Radiation
2.16
DNI
0
GTI
3.85
Weather Alerts
Risk of very severe thunderstorms with torrential rain (around 40 mm in a short time), in combination with rain around 70 mm, wind gusts 20 to 25 m/s (70 to 90 km/h) and hail around 2 cm. Local property damage and complications, especially in the energy industry, transport, and agriculture. Potential for dangerous flooding, flash floods. Increased runoff from slopes, rapid flooding of low-lying areas, dry gullies, small streams, undercutting of roads. Significant wind damage to trees, parks, buildings, property, energy infrastructure etc. Power outages. Travel delays and disruptions. Driving conditions difficult due to wind gusts, reduced visibility, fallen trees/branches, high risk of hydroplaning. Extensive damage to vegetation, buildings, and property from hail. Risk of fire caused by lightning strike. Risk of serious injury from flying or falling objects and lightning strikes.
Beware of lightning strikes, hail, and falling or windblown objects. Seek shelter in a building with lightning protection. Outdoors, take cover in dense forest or low vegetation; avoid water, hilltops, metal structures, isolated trees, and rock overhangs. Avoid stream courses in the mountains, as water and debris flows may occur there suddenly. Secure windows, doors, greenhouses, and loose objects. Be prepared for possible power outages. When driving, reduce speed, do not enter or drive into flowing water or flooded areas. Stay informed of the driving conditions. Observe weather warnings, weather radar (www.chmi.cz or mobile apps) and flash flood risk https://produkty.chmi.cz/ffi.
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