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Františkovy Lázně in May averages 18°C (64°F) during the day and 7°C (45°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
For Františkovy Lázně itself, June, July and August generally stand out with 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.
Pick a month to see the average temperature, rainfall and sunshine in Františkovy Lázně - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Františkovy Lázně typically rise from around 16°C (61°F) at the start of May to approximately 19°C (66°F) by the end. Nights are cold, with lows typically ranging from 4°C (39°F) to 8°C (46°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Františkovy Lázně spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Františkovy Lázně.
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 →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
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.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Františkovy Lázně climate overview or explore weather in Czech Republic.
Where to go in May - average daytime high across popular destinations.
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