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Janske Lazne Weather in August
August in Janske Lazne brings high temperatures, with daytime highs of 23°C (73°F) and nights around 12°C (54°F). Quite a bit of rainfall is expected, around 100 mm (3.9 in), so pack an umbrella.
Rainfall in Janske Lazne in August
On average, there are about 14 days with rain during this month, averaging 100 mm (3.9 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Janske Lazne in August
Daytime temperatures in Janske Lazne reach 23°C (73°F) in August, dropping to 12°C (54°F) at night. Summer occurs in August. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. On average, it is the month with the highest temperature of the year.
Sunshine in Janske Lazne in August
With approximately 228 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.
Janske Lazne Temperature in August
Min Temperature
12°C (54°F)
Max Temperature
23°C (73°F)
Chance of Rain
47%
Precipitation
100 mm (3.9 in)
Rainy days
14 days
Humidity
76% *
Sunshine
228 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 August, with daily highs averaging around 23°C (73°F). Nights are cool, with lows typically ranging from 7°C (45°F) to 10°C (50°F).
Average temperatures in August
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 August
Historical weather records for Janske Lazne in August
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 August
Our historical data for Janske Lazne spans 1976 to 2026, revealing these weather extremes.
- Janske Lazne recorded its highest August temperature of 39°C (102°F) on August 4, 2026.
- Nighttime temperatures dropped to -1°C (30°F) on August 25, 1980, marking the coldest August night on record.
Best Places in Czech Republic in August
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 August →
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 August
Comfortable temperatures call for an easy wardrobe in August. 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Janske Lazne in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
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 August
Where to go in August - average daytime high across popular destinations.
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