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Janske Lazne Weather in June
June in Janske Lazne averages 20°C (68°F) during the day and 10°C (50°F) at night. Quite a bit of rainfall is typical this month, with around 111 mm (4.4 in) on average. An umbrella is a good idea.
Rainfall in Janske Lazne in June
This month experiences about 15 days of rain according to historical data, averaging 111 mm (4.4 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Janske Lazne in June
Daytime temperatures in Janske Lazne reach 20°C (68°F) in June, dropping to 10°C (50°F) at night. Experience the summer season in June. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 10°C (50°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Janske Lazne in June
The city usually sees around 220 hours of sunlight, indicating many sunny days , a great month for sightseeing.If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Janske Lazne.
Janske Lazne Temperature in June
Min Temperature
10°C (50°F)
Max Temperature
20°C (68°F)
Chance of Rain
51%
Precipitation
111 mm (4.4 in)
Rainy days
15 days
Humidity
75% *
Sunshine
220 hours *
Percentage Sunshine
*
* Data from: Jelenia Góra, Poland (31 KM, 19 Miles).
Janske Lazne Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Janske Lazne - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Janske Lazne typically stay consistent throughout June, with daily highs averaging around 20°C (68°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 8°C (46°F).
Average temperatures in June
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 June
Historical weather records for Janske Lazne in June
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 June
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Janske Lazne.
- The hottest June day on record in Janske Lazne reached 38°C (100°F) (June 28, 2026).
- The lowest overnight temperature recorded in June was -3°C (27°F) (June 1, 1977).
- The wettest June day on record brought 61 mm (2.4 in) of precipitation to Janske Lazne (June 2, 2013).
Best Places in Czech Republic in June
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 June →
perfect weather
pleasant
tolerable
unpleasant
poor
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).
What to Wear in Janske Lazne in June
Comfortable temperatures call for an easy wardrobe in June. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Janske Lazne in June
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Janske Lazne 3-Day Forecast
More climate data for Janske Lazne
Temperature Rainfall Sunshine Humidity
See the full Janske Lazne climate overview or explore weather in Czech Republic.
Popular in June
Where to go in June - average daytime high across popular destinations.
Brno
24°C (75°F) Prague23°C (73°F) Mariánské Lázně
22°C (72°F) Český Krumlov
22°C (72°F) Karlovy Vary21°C (70°F) Rokytnice nad Jizerou
20°C (68°F) Špindlerův Mlýn20°C (68°F) Harrachov20°C (68°F) Bucket list
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