Our verdict
The best time to visit Karlovy Vary is September
In the height of summer, temperatures in Karlovy Vary can reach a maximum of 25℃ (77℉). The weather at night in the winter, which is around January-time, can get down to a minimum of -11℃ (13℉).
If you’re keen to work on your tan in Karlovy Vary, you’re most likely get the longest days between sun-up and sun-down around July. The wet season in Karlovy Vary usually falls during the months surrounding July each year. It’s not uncommon to get some decent rainfall or light showers during this time, but on some days the weather tends to be fine for a majority of the day, with only a few drops of rain falling from a passing shower.
Learn more about when to travel to Karlovy Vary, the monthly weather breakdown, FAQs and much more below. Once you’ve decided when you want to go, use our handy tools to find the best prices to suit your budget on flights, transport/transfers, places to stay, and loads more!
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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Karlovy Vary seasons
Before you continue, it’s important to know when the seasons are in Karlovy Vary as they might be different to yours depending on where in the world you’re travelling from. Karlovy Vary is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Karlovy Vary
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Karlovy Vary for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Karlovy Vary climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Karlovy Vary for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Karlovy Vary in January
- Average temperature: -2℃ (28℉)
- Average high temperature: 0℃ (32℉)
- Average low temperature: -5℃ (23℉)
- Average humidity: 92%
- Average sunny days: 7 days
- Average rainfall: 45mm (2") over 12 days
- Average snow days: 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Karlovy Vary in February
- Average temperature: -2℃ (29℉)
- Average high temperature: 1℃ (34℉)
- Average low temperature: -5℃ (24℉)
- Average humidity: 90%
- Average sunny days: 9 days
- Average rainfall: 39mm (2") over 9 days
- Average snow days: 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Karlovy Vary in March
- Average temperature: 3℃ (37℉)
- Average high temperature: 6℃ (43℉)
- Average low temperature: -1℃ (30℉)
- Average humidity: 84%
- Average sunny days: 11 days
- Average rainfall: 37mm (1") over 14 days
- Average snow days: 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Karlovy Vary in April
- Average temperature: 8℃ (47℉)
- Average high temperature: 13℃ (55℉)
- Average low temperature: 3℃ (37℉)
- Average humidity: 75%
- Average sunny days: 12 days
- Average rainfall: 27mm (1") over 15 days
- Average snow days: 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Karlovy Vary in May
- Average temperature: 12℃ (53℉)
- Average high temperature: 16℃ (61℉)
- Average low temperature: 6℃ (42℉)
- Average humidity: 78%
- Average sunny days: 8 days
- Average rainfall: 56mm (2") over 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in May, make sure you pack a warm jacket or coat.
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Karlovy Vary in June
- Average temperature: 15℃ (59℉)
- Average high temperature: 20℃ (68℉)
- Average low temperature: 9℃ (49℉)
- Average humidity: 78%
- Average sunny days: 8 days
- Average rainfall: 54mm (2") over 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in June, make sure you pack a warm jacket or coat.
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Karlovy Vary in July
- Average temperature: 17℃ (63℉)
- Average high temperature: 22℃ (72℉)
- Average low temperature: 11℃ (53℉)
- Average humidity: 75%
- Average sunny days: 9 days
- Average rainfall: 58mm (2") over 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in July, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
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Karlovy Vary in August
- Average temperature: 17℃ (63℉)
- Average high temperature: 22℃ (72℉)
- Average low temperature: 12℃ (53℉)
- Average humidity: 75%
- Average sunny days: 13 days
- Average rainfall: 49mm (2") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in August, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
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Karlovy Vary in September
- Average temperature: 12℃ (54℉)
- Average high temperature: 17℃ (63℉)
- Average low temperature: 8℃ (47℉)
- Average humidity: 80%
- Average sunny days: 16 days
- Average rainfall: 34mm (1") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in September, make sure you pack a warm jacket or coat.
Karlovy Vary in October
- Average temperature: 8℃ (46℉)
- Average high temperature: 12℃ (53℉)
- Average low temperature: 4℃ (40℉)
- Average humidity: 85%
- Average sunny days: 16 days
- Average rainfall: 28mm (1") over 12 days
- Average snow days: 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in October, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Karlovy Vary in November
- Average temperature: 3℃ (38℉)
- Average high temperature: 6℃ (43℉)
- Average low temperature: 1℃ (34℉)
- Average humidity: 89%
- Average sunny days: 13 days
- Average rainfall: 33mm (1") over 12 days
- Average snow days: 5 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Karlovy Vary in December
- Average temperature: -0℃ (32℉)
- Average high temperature: 2℃ (35℉)
- Average low temperature: -3℃ (27℉)
- Average humidity: 90%
- Average sunny days: 7 days
- Average rainfall: 48mm (2") over 14 days
- Average snow days: 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Karlovy Vary in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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