Karlovy Vary weather in July
July in Karlovy Vary: warm, rainy, with clean air — one of the best months to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#2 of 12 months in Karlovy Vary · #201 of 1413 destinations to visit in July · comfort 91/100 (tier S)
- Days
- 25°C
- Nights
- 12°C
- Wet days
- 14
- Sun
- 11.7 h
- Humidity
- 70%
- Daylight
- 16 h

Traveller notes on Karlovy Vary in July
Forum regulars note that Karlovy Vary runs noticeably cooler than Prague in summer, which is part of why it's popular as a July escape. The spa culture is central to any visit - around a hundred mineral springs feed the colonnades, with water temperatures from 30 to 73C - but posters are split on the paid spa experiences themselves: some recommend booking ahead since the well-known hotels get busy in peak season, while others warn not to build a trip around trying the treatments, calling some options disappointing for the price. Walking the colonnades and sipping from a spa cup remains the free, universally-recommended activity regardless.
Other months in Karlovy Vary
Forum posters describe January in Karlovy Vary as consistently cold, often with snow on the ground, similar to the conditions typical of December. One visitor specifically cited temperatures around -10C early in the morning on one of the town's bridges, describing the experience as genuinely wintry but still enjoyable with the right gear. Posters describe the funicular area up above the spa town as a real winter-wonderland highlight when snow is on the ground. Posters do flag that some attractions and businesses run reduced hours or close entirely during the quieter January off-season. Posters generally recommend layered clothing and warm, sturdy shoes as essential January packing. Posters generally rate January as cold and snow-capable but atmospheric for a Karlovy Vary visit, with some seasonal closures to plan around.
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Karlovy Vary climate normals — July
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Karlovy Vary in July
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdstravelers describe it as peak season, Karlovy Vary Film Festival, Summer holidays in Czechia
Sourced from traveler notes: “…mmend booking ahead since the well-known hotels get busy in peak season, while others warn not to build a trip around trying the tr…” — Tripadvisor community
Peak crowdsBusyShoulder seasonQuiet
Best months for Karlovy Vary's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherKarlovy Vary's weather peaks June–August.
July includes Karlovy Vary Film Festival.
Best weatherFair weatherToughest weather
What's on in Karlovy Vary in July
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Karlovy Vary Film Festival
1–13 Jul · usuallyCrowdedBook earlyFor nine days in early July the spa town turns into a film festival, students sleeping in the park and queues outside the Thermal. Rooms go months ahead and cost several times the usual. Source ↗
Nearby, and something's on
Within 300 km of Karlovy Vary — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Karlovy Vary?
Karlovy Vary in July — FAQ
- Is July a good time to visit Karlovy Vary?
- July in Karlovy Vary: warm, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Karlovy Vary on SeasonMap's comfort score (91/100).
- What is the weather like in Karlovy Vary in July?
- In July, Karlovy Vary averages a daily high of 24.7°C and a low of 12.2°C, with about 80.2 mm of rain over roughly 13.5 rainy days.
- What is the air quality in Karlovy Vary in July?
- Karlovy Vary has a mean US Air Quality Index of about 43 in July.
Within 300 km: Nuremberg's Bardentreffen on 30 Jul – 2 Aug, and Munich's Tollwood summer festival on 19 Jun – 19 Jul.