The hottest, coldest, wettest and snowiest days Karlovy Vary has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 21 years of daily weather observations (2004–present), from the Plzen-Mikulka station 63 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.
The four kinds of extreme
The hottest, coldest, wettest and snowiest single days Karlovy Vary
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
101°FJul 29, 2005
The three most extreme on record
1101°FJul 29, 2005
2100°FAug 20, 2012
3100°FJul 5, 2015
❄️Coldest night
-5°FFeb 12, 2012
The three most extreme on record
1-5°FFeb 12, 2012
2-2°FFeb 6, 2012
3-1°FJan 27, 2010
🌧️Most rain in one day
2.89 inMay 27, 2009
The three most extreme on record
12.89 inMay 27, 2009
22.41 inAug 3, 2020
32.37 inMay 28, 2006
In plain terms
Across the record, Karlovy Vary has reached as high as 101°F and as low as −5°F. A single day has delivered over 3 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Hof, a weather station, about 71 km from the city centre. The underlying daily records come from NOAA's global station network.