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May Weather in Heralec, Czech Republic

Last updated: August 23, 2025

In May, the average temperature in Heralec, Czech Republic hovers around 12°C (54°F). However, temperatures can fluctuate significantly, with a minimum of -3°C (28°F) and a maximum reaching 28°C (83°F). Expect 96 mm (3.8 in) of precipitation spread over approximately 16 days, and enjoy a relatively high average humidity of 73%.

May Temperature in Heralec

In May in Heralec, the average temperature is 12°C (54°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -3°C (28°F). This diverse range of temperatures makes it important to pack for both warm days and chilly nights when traveling.

May Weather in Heralec: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Heralec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heralec, May typically has an average temperature of 12°C (54°F), with highs reaching up to 28°C (83°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec293338465464656657494033
Data source: Temperature data for Heralec generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Heralec

In Heralec in May, the total precipitation amount is 96 mm (3.8 in) recorded over 16 days.

May Precipitation Trends in Heralec

The chart displays monthly precipitation patterns in Heralec, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Heralec, May typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec495250459683918593754464
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Heralec

In Heralec in May, humidity is 73%. With an average temperature of 12°C (54°F), this humidity feels like a chilly embrace, making travel moderately uncomfortable as the dampness can chill you to your bones, especially during early morning excursions or late afternoon strolls.

May Average Humidity in Heralec

This chart illustrates the average monthly humidity levels in Heralec, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Heralec is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%85%78%74%77%76%76%75%85%90%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Heralec

In Heralec in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Heralec.

Maximum UV Index Levels in Heralec for May

The chart shows the monthly maximum UV Index (UVI) for Heralec in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Heralec typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689876421
Data source: Heralec May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Heralec Compares to Other Months

Weather in Heralec varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Heralec, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Heralec, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)49 mm (1.9 inches)90%low
February Weather1°C (33°F)52 mm (2.0 inches)87%moderate
March Weather3°C (38°F)50 mm (2.0 inches)85%moderate
April Weather8°C (47°F)45 mm (1.8 inches)78%high
May Weather12°C (54°F)96 mm (3.8 inches)73%very high
June Weather18°C (64°F)83 mm (3.3 inches)77%very high
July Weather18°C (65°F)91 mm (3.6 inches)76%very high
August Weather19°C (66°F)85 mm (3.3 inches)76%high
September Weather14°C (57°F)93 mm (3.6 inches)75%high
October Weather9°C (49°F)75 mm (3.0 inches)85%moderate
November Weather4°C (40°F)44 mm (1.7 inches)90%low
December Weather1°C (34°F)64 mm (2.5 inches)91%low

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