September Weather in Karlovy Vary

Last updated: March 2, 2024

The weather in Karlovy Vary, Czech Republic, during September is characterized by an average temperature of 13°C (55°F). Highs can soar to 25°C (77°F), while lows may dip to 2°C (36°F). Typically, the humidity level in Karlovy Vary throughout September hovers around 81%.

2°C (36°F)

Minimum temperature

13°C (55°F)

Average temperature

25°C (77°F)

Maximum temperature

81%

Humidity

Precipitation and Sunshine hours

In September, Karlovy Vary averages 59 mm (2.3 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 33 minutes of daylight, with the sun shining for approximately 10 hours 16 minutes each day. Additionally, there is a 35% probability of sunny days during this period.

59 mm (2.3 inches)

Precipitation

10 rainy days

Rainy days

10 hours 16 minutes

Sunshine hours

35%

Chance of sun

UV Index

In September, the UV Index in Karlovy Vary reaches a maximum of 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 2 3 4 5 6 5 4 3 2 1 1
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

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