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Janov nad Nisou Weather in May
In Janov nad Nisou, May brings moderate daytime temperatures around 18°C (64°F), with nights cooling to 7°C (45°F). Expect quite a bit of rainfall this month.
Rainfall in Janov nad Nisou in May
Records from the past 30 years suggest around 15 days of rain, with 94 mm (3.7 in) average for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Janov nad Nisou in May
May in Janov nad Nisou brings moderate temperatures, with highs of 18°C (64°F) and nights around 7°C (45°F). A light jacket or extra layer can be useful, especially outside the warmest hours 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.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Janov nad Nisou.
Janov nad Nisou Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
18°C (64°F)
Chance of Rain
49%
Precipitation
94 mm (3.7 in)
Rainy days
15 days
Humidity
67% *
* Data from: Liberec, Czech Republic (7 KM, 4 Miles).
Janov nad Nisou Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Janov nad Nisou - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Janov nad Nisou 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 5°C (41°F) to 9°C (48°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 records for Janov nad Nisou in May
Browse day-by-day weather records for Janov nad Nisou spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Janov nad Nisou historical weather extremes in May
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Janov nad Nisou.
- Janov nad Nisou recorded its highest May temperature of 30°C (86°F) on May 28, 2005.
- The coldest May day was on May 11, 1978, with a maximum of 4°C (39°F).
- The coldest night in May in Janov nad Nisou was on May 5, 1980, with a minimum of -4°C (25°F).
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 →
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 Janov nad Nisou 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. Expect heavy rainfall, so bring good rain protection and waterproof bags.
What To Do in Janov nad Nisou in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports9/10
Janov nad Nisou 3-Day Forecast
More climate data for Janov nad Nisou
See the full Janov nad Nisou climate overview or explore weather in Czech Republic.
Popular in May
Where to go in May - average daytime high across popular destinations.
Brno
21°C (70°F) Prague20°C (68°F) Mariánské Lázně
18°C (64°F) Český Krumlov
18°C (64°F) Karlovy Vary17°C (63°F) Rokytnice nad Jizerou17°C (63°F) Špindlerův Mlýn17°C (63°F) Harrachov17°C (63°F) Bucket list
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