Karlovy Vary Weather in May
Karlovy Vary in May averages 17°C (63°F) during the day and 7°C (45°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Karlovy Vary in May
Expect around 15 days of rain based on historical data, with 77 mm (3 in) average. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Karlovy Vary in May
Temperatures in Karlovy Vary in May top out at 17°C (63°F) and drop to 7°C (45°F) overnight. Conditions are often most pleasant around the middle of the day. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Karlovy Vary in May
The area experiences a moderate amount of sunshine, with approximately 187 hours of sunlight expected. This means a decent mix of sun and overcast.If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Czech Republic, check out our Karlovy Vary's climate page.
Karlovy Vary Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
17°C (63°F)
Chance of Rain
51%
Precipitation
77 mm (3 in)
Rainy days
15 days
Humidity
70% *
Sunshine
187 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Karlovy Vary typically rise from around 14°C (57°F) at the start of May to approximately 17°C (63°F) by the end. Nights are cold, with lows typically ranging from 4°C (39°F) to 7°C (45°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Karlovy Vary in May
Browse day-by-day weather records for Karlovy Vary spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Karlovy Vary historical weather extremes in May
Our historical data for Karlovy Vary spans 1976 to 2026, revealing these weather extremes.
- The hottest May day on record in Karlovy Vary reached 31°C (88°F) (May 28, 2005).
- The coldest night in May in Karlovy Vary was on May 11, 1978, with a minimum of -9°C (16°F).
- The wettest day in May Karlovy Vary was on May 29, 1989 with 48 mm (1.9 in) of precipitation.
Best Places in Czech Republic in May
Find out more about the weather in Czech Republic and which places have the best travel conditions in this month. See all of Czech Republic in May →
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What to Wear in Karlovy Vary in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Karlovy Vary in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Czech Republic, check out our Karlovy Vary's climate page.
Temperature Rainfall Sunshine Humidity
See the full Karlovy Vary climate overview or explore weather in Czech Republic.
