Janske Lazne Weather in May
Thinking of visiting Janske Lazne in May? Expect moderate temperatures reaching 17°C (63°F) during the day, dropping to 7°C (45°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Janske Lazne in May
You can expect rain on roughly 14 days based on historical data, averaging 96 mm (3.8 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Janske Lazne in May
In May, Janske Lazne sees moderate temperatures, with highs of 17°C (63°F). Nights drop to around 7°C (45°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. 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 Janske Lazne in May
There are approximately 222 hours of sunshine this month, resulting in mostly clear days.Should you favor a climate that's both dry and comfortably warm, June, July and August typically offer the most agreeable 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 Janske Lazne's climate page.
Janske Lazne Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
17°C (63°F)
Chance of Rain
48%
Precipitation
96 mm (3.8 in)
Rainy days
14 days
Humidity
73% *
Sunshine
222 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Janske Lazne typically rise from around 10°C (50°F) at the start of May to approximately 13°C (55°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 5°C (41°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 Janske Lazne in May
Browse day-by-day weather records for Janske Lazne spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Janske Lazne historical weather extremes in May
Based on weather observations in Janske Lazne between 1976 and 2026, these are the recorded extremes during May.
- The hottest May day on record in Janske Lazne reached 29°C (84°F) (May 24, 2026).
- The lowest overnight temperature recorded in May was -10°C (14°F) (May 11, 1978).
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 Janske Lazne in May
For Janske Lazne in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Janske Lazne 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 Janske Lazne's climate page.
Temperature Rainfall Sunshine Humidity
See the full Janske Lazne climate overview or explore weather in Czech Republic.
