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What is the climate like in 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 21°C.

Annually, about 844 mm of rain falls. This gives a good overview of how much rain to expect in Herm. Additionally, about 1,2 cm of snow falls each year.

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 21°C
Rain 844 mm
Snow 1,2 cm
The climate of Herm
  • Average yearly temperature: 15°C
  • Highest temperature: 21°C in July
  • Lowest temperature: 10°C in January and February
  • Rainfall: 844 mm per year, averaging 70 mm by month
  • Driest months: 27 mm in July, 34 mm in April and 39 mm in June
  • Wettest months: 122 mm in October, 112 mm in December and 104 mm in January
  • Snowfall: 1,2 cm per year

Climate table Herm

The climate table for Herm shows the average temperatures, rainfall, snowfall, and UV index by month.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daytime temperature (°C) 10 10 11 13 16 19 21 20 19 16 13 11
Nighttime temperature (°C) 6 6 7 8 10 13 15 15 14 12 10 8
Rainfall (mm) 104 75 64 34 68 39 27 53 46 122 100 112
Snowfall (cm) 0 0,8 0,4 0 0 0 0 0 0 0 0 0
UV Index 2 3 5 6 6 8 8 6 4 3 2 1
Best month No No No No No Yes Yes Yes Yes No No No

Temperature by month in Herm

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

Temperature by month in Herm

Rainfall by month in Herm

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

Rainfall by month in Herm

Snowfall by month in Herm

This graph shows the average snowfall in centimeters by month in Herm.

Snowfall by month in Herm

UV index by month in Herm

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

UV index by 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 rainfall in Herm

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

Rainfall per year in Herm

Yearly snowfall in Herm

This graph shows the average yearly snowfall in Herm, measured in centimeters.

Snowfall per year in Herm

Weather experiences in Herm

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Average weather in Herm by 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, rainfall, wind, and UV index for each day of the month.