Weather in September
September in
Pyhäjoki,
Finland, marks the move from summer towards fall. With a drop in sea temperature to 12.7°C (54.9°F), there's a noticeable shift from the warm
August. This cooler weather gradually descends into
October, with its further shortened daylight hours. The weather change in September paints the Finnish landscapes with vibrant fall colors, appealing to all nature lovers.
Sea temperature
In Pyhäjoki, the average seawater temperature in September is 12.7°C (54.9°F).
Note: If planning to swim in 12.7°C (54.9°F) under 10°C (50°F), wear a protective suit. Neglecting this advice might cause immediate cold shock and troubled breathing. A splash around 13°C (55.4°F) is not much warmer.
Daylight
In Pyhäjoki, the average length of the day in September is 13h and 2min.
On the first day of September in Pyhäjoki, sunrise is at 06:05 and sunset at 20:39. On the last day of the month, sunrise is at 07:30 and sunset at 18:54 EEST.