SeasonMapKarlovy Vary weather by month
Czechia
The best time to visit Karlovy Vary is June to August — 93/100 in June, 24°C and 13 rainy days. The best season is summer, June to August (91/100 on average).
The worst month is January at 40/100 — freezing, a little rain, clean air. See January →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Czechia →
Karlovy Vary, month by month
Comfort score out of 100 for the kind of trip Karlovy Vary is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 40 | F | 3°C | 14 d | 3 h | Quiet | 1 |
| FebFebruary | 51 | D | 6°C | 12 d | 5 h | Busy | — |
| MarMarch | 64 | C | 9°C | 12 d | 7 h | Shoulder | — |
| AprApril | 75 | B | 14°C | 11 d | 10 h | Busy | 1 |
| MayMay | 80 | A | 18°C | 14 d | 11 h | Busy | 1 |
| JunJune | 93 | S | 24°C | 13 d | 12 h | Busy | — |
| JulJuly | 91 | S | 25°C | 14 d | 12 h | Peak | 1 |
| AugAugust | 88 | A | 25°C | 12 d | 10 h | Busy | — |
| SepSeptember | 83 | A | 20°C | 10 d | 8 h | Shoulder | 1 |
| OctOctober | 68 | C | 14°C | 12 d | 5 h | Busy | — |
| NovNovember | 55 | D | 7°C | 10 d | 3 h | Busy | 1 |
| DecDecember | 44 | F | 5°C | 14 d | 3 h | Peak | 1 |
What's on in Karlovy Vary through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Karlovy Vary in June
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.
Busyschool holidays in 4 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet