Karlovy Vary weather by month

Check out Karlovy Vary weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Karlovy Vary (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
-1°C maximum daytime temperature in January in Karlovy Vary-1
1°C maximum daytime temperature in February in Karlovy Vary1
5°C maximum daytime temperature in March in Karlovy Vary5
11°C maximum daytime temperature in April in Karlovy Vary11
16°C maximum daytime temperature in May in Karlovy Vary16
19°C maximum daytime temperature in June in Karlovy Vary19
21°C maximum daytime temperature in July in Karlovy Vary21
21°C maximum daytime temperature in August in Karlovy Vary21
17°C maximum daytime temperature in September in Karlovy Vary17
11°C maximum daytime temperature in October in Karlovy Vary11
4°C maximum daytime temperature in November in Karlovy Vary4
1°C maximum daytime temperature in December in Karlovy Vary1
Min temperature (night-time)
-6°C minimum night-time temperature in January in Karlovy Vary-6
-5°C minimum night-time temperature in February in Karlovy Vary-5
-2°C minimum night-time temperature in March in Karlovy Vary-2
1°C minimum night-time temperature in April in Karlovy Vary1
6°C minimum night-time temperature in May in Karlovy Vary6
9°C minimum night-time temperature in June in Karlovy Vary9
10°C minimum night-time temperature in July in Karlovy Vary10
10°C minimum night-time temperature in August in Karlovy Vary10
7°C minimum night-time temperature in September in Karlovy Vary7
3°C minimum night-time temperature in October in Karlovy Vary3
-1°C minimum night-time temperature in November in Karlovy Vary-1
-4°C minimum night-time temperature in December in Karlovy Vary-4
Heat & Humidity
No heat & humidity in January in Karlovy Vary0
No heat & humidity in February in Karlovy Vary0
No heat & humidity in March in Karlovy Vary0
No heat & humidity in April in Karlovy Vary0
No heat & humidity in May in Karlovy Vary0
No heat & humidity in June in Karlovy Vary0
No heat & humidity in July in Karlovy Vary0
No heat & humidity in August in Karlovy Vary0
No heat & humidity in September in Karlovy Vary0
No heat & humidity in October in Karlovy Vary0
No heat & humidity in November in Karlovy Vary0
No heat & humidity in December in Karlovy Vary0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Karlovy Vary

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in Karlovy Vary9
10 hours of daylight per day in February in Karlovy Vary10
12 hours of daylight per day in March in Karlovy Vary12
14 hours of daylight per day in April in Karlovy Vary14
15 hours of daylight per day in May in Karlovy Vary15
16 hours of daylight per day in June in Karlovy Vary16
16 hours of daylight per day in July in Karlovy Vary16
14 hours of daylight per day in August in Karlovy Vary14
13 hours of daylight per day in September in Karlovy Vary13
11 hours of daylight per day in October in Karlovy Vary11
9 hours of daylight per day in November in Karlovy Vary9
8 hours of daylight per day in December in Karlovy Vary8
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Karlovy Vary1
UV (maximum) index 1 (Low) in February in Karlovy Vary1
UV (maximum) index 3 (Moderate) in March in Karlovy Vary3
UV (maximum) index 4 (Moderate) in April in Karlovy Vary4
UV (maximum) index 6 (High) in May in Karlovy Vary6
UV (maximum) index 7 (High) in June in Karlovy Vary7
UV (maximum) index 7 (High) in July in Karlovy Vary7
UV (maximum) index 6 (High) in August in Karlovy Vary6
UV (maximum) index 4 (Moderate) in September in Karlovy Vary4
UV (maximum) index 2 (Low) in October in Karlovy Vary2
UV (maximum) index 1 (Low) in November in Karlovy Vary1
UV (maximum) index 1 (Low) in December in Karlovy Vary1

Rainfall in Karlovy Vary

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
16 days with some rainfall in January in Karlovy Vary16
14 days with some rainfall in February in Karlovy Vary14
14 days with some rainfall in March in Karlovy Vary14
14 days with some rainfall in April in Karlovy Vary14
15 days with some rainfall in May in Karlovy Vary15
16 days with some rainfall in June in Karlovy Vary16
15 days with some rainfall in July in Karlovy Vary15
15 days with some rainfall in August in Karlovy Vary15
14 days with some rainfall in September in Karlovy Vary14
13 days with some rainfall in October in Karlovy Vary13
15 days with some rainfall in November in Karlovy Vary15
17 days with some rainfall in December in Karlovy Vary17
Average monthly rainfall (mm)
53 mm monthly rainfall in January in Karlovy Vary53
43 mm monthly rainfall in February in Karlovy Vary43
46 mm monthly rainfall in March in Karlovy Vary46
44 mm monthly rainfall in April in Karlovy Vary44
58 mm monthly rainfall in May in Karlovy Vary58
69 mm monthly rainfall in June in Karlovy Vary69
67 mm monthly rainfall in July in Karlovy Vary67
66 mm monthly rainfall in August in Karlovy Vary66
51 mm monthly rainfall in September in Karlovy Vary51
43 mm monthly rainfall in October in Karlovy Vary43
52 mm monthly rainfall in November in Karlovy Vary52
60 mm monthly rainfall in December in Karlovy Vary60

More about the Karlovy Vary

Karlovy Vary by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Czech Republic (Karlovy Vary) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Karlovy Vary?

Karlovy Vary has a cold climate with warm summers and some rainfall in all months.

Karlovy Vary weather in January

Expect daytime maximum temperatures of -1°C in Karlovy Vary, Czech Republic in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 16 days with some rainfall and typically 53 mm of rainfall in the month, which might fall as snow.

  • -1°C maximum daytime temperature in January in Karlovy Vary-1
    -1°C max day temperature
  • 2 hours of sunshine per day
  • 16 days with some rainfall in January in Karlovy Vary16
    16 days with some rainfall
  • -6°C minimum night-time temperature in January in Karlovy Vary-6
    -6°C min night temperature
  • 9 hours of daylight per day in January in Karlovy Vary9
    9 hours of daylight per day
  • No heat & humidity in January in Karlovy Vary0
    No heat & humidity
  • 53 mm monthly rainfall in January in Karlovy Vary53
    53 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Karlovy Vary1
    1 (Low) UV index

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Karlovy Vary weather in February

Expect daytime maximum temperatures of 1°C in Karlovy Vary, Czech Republic in February based on long-term weather averages. There are 3 hours of sunshine per day on average with 14 days with some rainfall and typically 43 mm of rainfall in the month, which might fall as snow.

  • 1°C maximum daytime temperature in February in Karlovy Vary1
    1°C max day temperature
  • 3 hours of sunshine per day
  • 14 days with some rainfall in February in Karlovy Vary14
    14 days with some rainfall
  • -5°C minimum night-time temperature in February in Karlovy Vary-5
    -5°C min night temperature
  • 10 hours of daylight per day in February in Karlovy Vary10
    10 hours of daylight per day
  • No heat & humidity in February in Karlovy Vary0
    No heat & humidity
  • 43 mm monthly rainfall in February in Karlovy Vary43
    43 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in February in Karlovy Vary1
    1 (Low) UV index

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Karlovy Vary weather in March

Expect daytime maximum temperatures of 5°C in Karlovy Vary, Czech Republic in March based on long-term weather averages. There are 4 hours of sunshine per day on average with 14 days with some rainfall and typically 46 mm of rainfall in the month.

  • 5°C maximum daytime temperature in March in Karlovy Vary5
    5°C max day temperature
  • 4 hours of sunshine per day
  • 14 days with some rainfall in March in Karlovy Vary14
    14 days with some rainfall
  • -2°C minimum night-time temperature in March in Karlovy Vary-2
    -2°C min night temperature
  • 12 hours of daylight per day in March in Karlovy Vary12
    12 hours of daylight per day
  • No heat & humidity in March in Karlovy Vary0
    No heat & humidity
  • 46 mm monthly rainfall in March in Karlovy Vary46
    46 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in March in Karlovy Vary3
    3 (Moderate) UV index

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Karlovy Vary weather in April

Expect daytime maximum temperatures of 11°C in Karlovy Vary, Czech Republic in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 44 mm of rainfall in the month.

  • 11°C maximum daytime temperature in April in Karlovy Vary11
    11°C max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in April in Karlovy Vary14
    14 days with some rainfall
  • 1°C minimum night-time temperature in April in Karlovy Vary1
    1°C min night temperature
  • 14 hours of daylight per day in April in Karlovy Vary14
    14 hours of daylight per day
  • No heat & humidity in April in Karlovy Vary0
    No heat & humidity
  • 44 mm monthly rainfall in April in Karlovy Vary44
    44 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Karlovy Vary4
    4 (Moderate) UV index

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Karlovy Vary weather in May

Expect daytime maximum temperatures of 16°C in Karlovy Vary, Czech Republic in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 15 days with some rainfall and typically 58 mm of rainfall in the month.

  • 16°C maximum daytime temperature in May in Karlovy Vary16
    16°C max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in May in Karlovy Vary15
    15 days with some rainfall
  • 6°C minimum night-time temperature in May in Karlovy Vary6
    6°C min night temperature
  • 15 hours of daylight per day in May in Karlovy Vary15
    15 hours of daylight per day
  • No heat & humidity in May in Karlovy Vary0
    No heat & humidity
  • 58 mm monthly rainfall in May in Karlovy Vary58
    58 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Karlovy Vary6
    6 (High) UV index

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Karlovy Vary weather in June

Expect daytime maximum temperatures of 19°C in Karlovy Vary, Czech Republic in June based on long-term weather averages. There are 7 hours of sunshine per day on average with 16 days with some rainfall and typically 69 mm of rainfall in the month.

  • 19°C maximum daytime temperature in June in Karlovy Vary19
    19°C max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in June in Karlovy Vary16
    16 days with some rainfall
  • 9°C minimum night-time temperature in June in Karlovy Vary9
    9°C min night temperature
  • 16 hours of daylight per day in June in Karlovy Vary16
    16 hours of daylight per day
  • No heat & humidity in June in Karlovy Vary0
    No heat & humidity
  • 69 mm monthly rainfall in June in Karlovy Vary69
    69 mm of monthly rainfall
  • UV (maximum) index 7 (High) in June in Karlovy Vary7
    7 (High) UV index

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Karlovy Vary weather in July

Expect daytime maximum temperatures of 21°C in Karlovy Vary, Czech Republic in July based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 67 mm of rainfall in the month.

  • 21°C maximum daytime temperature in July in Karlovy Vary21
    21°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in July in Karlovy Vary15
    15 days with some rainfall
  • 10°C minimum night-time temperature in July in Karlovy Vary10
    10°C min night temperature
  • 16 hours of daylight per day in July in Karlovy Vary16
    16 hours of daylight per day
  • No heat & humidity in July in Karlovy Vary0
    No heat & humidity
  • 67 mm monthly rainfall in July in Karlovy Vary67
    67 mm of monthly rainfall
  • UV (maximum) index 7 (High) in July in Karlovy Vary7
    7 (High) UV index

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Karlovy Vary weather in August

Expect daytime maximum temperatures of 21°C in Karlovy Vary, Czech Republic in August based on long-term weather averages. There are 6 hours of sunshine per day on average with 15 days with some rainfall and typically 66 mm of rainfall in the month.

  • 21°C maximum daytime temperature in August in Karlovy Vary21
    21°C max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in August in Karlovy Vary15
    15 days with some rainfall
  • 10°C minimum night-time temperature in August in Karlovy Vary10
    10°C min night temperature
  • 14 hours of daylight per day in August in Karlovy Vary14
    14 hours of daylight per day
  • No heat & humidity in August in Karlovy Vary0
    No heat & humidity
  • 66 mm monthly rainfall in August in Karlovy Vary66
    66 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Karlovy Vary6
    6 (High) UV index

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Karlovy Vary weather in September

Expect daytime maximum temperatures of 17°C in Karlovy Vary, Czech Republic in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 51 mm of rainfall in the month.

  • 17°C maximum daytime temperature in September in Karlovy Vary17
    17°C max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in September in Karlovy Vary14
    14 days with some rainfall
  • 7°C minimum night-time temperature in September in Karlovy Vary7
    7°C min night temperature
  • 13 hours of daylight per day in September in Karlovy Vary13
    13 hours of daylight per day
  • No heat & humidity in September in Karlovy Vary0
    No heat & humidity
  • 51 mm monthly rainfall in September in Karlovy Vary51
    51 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Karlovy Vary4
    4 (Moderate) UV index

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Karlovy Vary weather in October

Expect daytime maximum temperatures of 11°C in Karlovy Vary, Czech Republic in October based on long-term weather averages. There are 4 hours of sunshine per day on average with 13 days with some rainfall and typically 43 mm of rainfall in the month.

  • 11°C maximum daytime temperature in October in Karlovy Vary11
    11°C max day temperature
  • 4 hours of sunshine per day
  • 13 days with some rainfall in October in Karlovy Vary13
    13 days with some rainfall
  • 3°C minimum night-time temperature in October in Karlovy Vary3
    3°C min night temperature
  • 11 hours of daylight per day in October in Karlovy Vary11
    11 hours of daylight per day
  • No heat & humidity in October in Karlovy Vary0
    No heat & humidity
  • 43 mm monthly rainfall in October in Karlovy Vary43
    43 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Karlovy Vary2
    2 (Low) UV index

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Karlovy Vary weather in November

Expect daytime maximum temperatures of 4°C in Karlovy Vary, Czech Republic in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 15 days with some rainfall and typically 52 mm of rainfall in the month.

  • 4°C maximum daytime temperature in November in Karlovy Vary4
    4°C max day temperature
  • 2 hours of sunshine per day
  • 15 days with some rainfall in November in Karlovy Vary15
    15 days with some rainfall
  • -1°C minimum night-time temperature in November in Karlovy Vary-1
    -1°C min night temperature
  • 9 hours of daylight per day in November in Karlovy Vary9
    9 hours of daylight per day
  • No heat & humidity in November in Karlovy Vary0
    No heat & humidity
  • 52 mm monthly rainfall in November in Karlovy Vary52
    52 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in November in Karlovy Vary1
    1 (Low) UV index

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Karlovy Vary weather in December

Expect daytime maximum temperatures of 1°C in Karlovy Vary, Czech Republic in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 17 days with some rainfall and typically 60 mm of rainfall in the month, which might fall as snow.

  • 1°C maximum daytime temperature in December in Karlovy Vary1
    1°C max day temperature
  • 1 hour of sunshine per day
  • 17 days with some rainfall in December in Karlovy Vary17
    17 days with some rainfall
  • -4°C minimum night-time temperature in December in Karlovy Vary-4
    -4°C min night temperature
  • 8 hours of daylight per day in December in Karlovy Vary8
    8 hours of daylight per day
  • No heat & humidity in December in Karlovy Vary0
    No heat & humidity
  • 60 mm monthly rainfall in December in Karlovy Vary60
    60 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Karlovy Vary1
    1 (Low) UV index

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More about the Karlovy Vary

Karlovy Vary by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for the Czech Republic

  • Explore latest special offers & online deals from TUI
  • Free child places & £0 deposits with direct debit available
  • Book summer & winter sun holidays in 2026/2027

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The climate guide for Czech Republic (Karlovy Vary) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Compare Karlovy Vary weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Karlovy Vary, Czech Republic and the UK (London).

Maximum daytime temperature (°C)

Karlovy Vary, Czech Republic
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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