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Average climate of Herm

The climate of Herm has an average yearly temperature of 15°C. Throughout the year, the average monthly temperature can drop to 10°C and rise to 20°C.

Annually, about 798 mm of rain falls. This gives a good overview of how much rain to expect in Herm.

The best time to visit Herm is June until September. During this period, you will experience pleasant temperatures and not too much rain, making it ideal to visit Herm.

Temperature 10 to 20°C
Rain 798 mm
The climate of Herm
  • Average yearly temperature: 15°C
  • Highest temperature: 20°C in July and August
  • Lowest temperature: 10°C in January and February
  • Precipitation: 798 mm per year, averaging 67 mm per month
  • Driest months: 29 mm in July, 31 mm in April and 38 mm in June
  • Wettest months: 112 mm in October, 104 mm in December and 100 mm in January

Climate table Herm

The climate table for Herm shows the average temperatures, precipitation, and UV index per month.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daytime temperature (°C) 10 10 11 13 15 18 20 20 19 16 13 11
Nighttime temperature (°C) 7 6 7 8 10 13 15 15 15 12 10 8
Precipitation (mm) 100 71 61 31 59 38 29 50 44 112 99 104
UV Index 2 3 5 6 7 7 7 6 5 3 2 1
Best month No No No No No Yes Yes Yes Yes No No No

Temperature per month in Herm

This graph shows the average high temperatures in degrees Celsius for each month in Herm

Temperature per month in Herm

Precipitation per month in Herm

This graph shows the average monthly precipitation in millimeters in Herm.

Precipitation per month in Herm

UV index per month in Herm

This graph shows the average UV index per month in Herm.

UV index per month in Herm

Yearly temperature in Herm

This graph shows the average yearly temperature in Herm, measured in degrees Celsius.

Yearly temperature in Herm

Yearly total precipitation in Herm

This graph shows the average yearly precipitation in millimeters in Herm.

Precipitation per year in Herm

Weather experiences in Herm

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Average weather in Herm per month

Click on a month below to see in detail how the weather typically is in Herm and what to expect. Based on the historical weather data of Herm, you can view the average temperature, precipitation, wind, and UV index for each day of the month.