The climate in Herlen during October can be summarized as cool and very dry.
October is in the fall / autumn in Herlen and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a cold 9°C (48°F), whilst at night -7°C (19°F) is normal.
| Daytime temperature | 9°C 48.2°F |
|---|---|
| Nightly temperature | -7.2°C 19°F |
| Average temperature | 0.9°C 33.6°F |
| Daily sunshine | 8.6 hrs |
| Avg rainfall | 9 mm 0.3 ins |
| Rainy days | 6 days |
| Sea temperature | 13.3°C 56°F |
| Humidity | 56% |
| Windspeed | 12.2kph 8 mph |
On average October is the 6th driest month of the year in Herlen with around 9mm 0.3 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 8.6 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Herlen in October 2025.
Best places to visit in October
| Hottest month: | July | 25°C 77°F |
|---|---|---|
| Driest month: | January | 1mm 0ins |
| Sunniest month: | February | 8.3hrs |
| Coldest month: | January | -15.7°C 3.7°F |
| Wettest month: | July | 74mm 2.9ins |