The climate of Hiiumaa Island in September is humid. An average of 80 mm precipitation is recorded over 16 days. The situation is drier than the previous month: in August, the average recorded is 94 mm over 17 days.
Temperatures are rather cool in Hiiumaa Island in September, but remain tolerable with appropriate clothing. The average maximum temperature reaches 16°C, while the minimum falls to about 13°C. The month's average temperature is 15°C. These normals should be compared with the records recorded in Hiiumaa Island in September: 22°C as a maximum in 2018 and 6°C as a minimum in 2021. We can expect about 7 days with temperatures above 18°, i.e. 23% of the month.
In September, the days last on average 12:50 in Hiiumaa Island. The sun rises around 05:59 and sets around 18:49.
With favorable weather, the month of September is a good month to travel to Hiiumaa Island in Estonia.
In September, the most favorable activities in Hiiumaa Island are: Cultural visits and heritage, Nature and landscapes and Boat trip and cruise.
Some activities remain possible even if conditions are not optimal: Beach and swimming, Hiking and trekking, Animal observation and Watersports.