The climate of Herm
The current climate in Herm features temperatures ranging from a high of 21°C to a low of 10°C throughout the year. The average yearly temperature is around 15°C. At night, temperatures in the colder months average around 6°C and in the warmer months around 15°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Herm.
Temperature records
The highest temperature recorded in Herm in recent years was 35°C in July 2022. The lowest daytime temperature recorded was -1°C in February 2018.
Rainfall amount
On average, Herm receives 859 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
Best time to visit Herm?
The best time to visit Herm for sunny weather is June through September. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Herm. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Find affordable vacations to Herm
Climate Table of Herm
The climate table of Herm shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. max (°C) | 10 | 10 | 11 | 13 | 16 | 19 | 21 | 20 | 19 | 16 | 13 | 11 |
| Temp. min (°C) | 6 | 6 | 7 | 8 | 10 | 13 | 15 | 15 | 14 | 12 | 10 | 8 |
| Precipitation |  |
|
|
|
|
|
|
|
|
|
|
|
| Precipitation (mm) | 104 | 90 | 64 | 34 | 68 | 39 | 27 | 53 | 46 | 122 | 100 | 112 |
| UV Index | 2 | 3 | 5 | 6 | 6 | 8 | 8 | 6 | 4 | 3 | 2 | 1 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Herm. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Herm
Yearly Temperature in Herm
Precipitation charts
These charts show the average amount of precipitation in Herm. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Herm
Total Yearly Precipitation in Herm
UV index chart
This chart shows the average UV index per month in Herm. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Herm
Weather experiences in Herm
Have you been to Herm?
Share your weather experiences in Herm.
Average weather in Herm by month
Click on a month below to see detailed weather info for Herm. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.