September weather forecastPyhäranta, Finland
September
Weather in September
Sea temperature
In Pyhäranta, Finland, the average seawater temperature in September is 10.3°C (50.5°F).Note: It is risky to swim in 10.3°C (50.5°F). Temperatures beneath 10°C (50°F) induce rapid cold shock and hyperventilation.
Daylight
In September, the average length of the day in Pyhäranta is 12h and 54min.On the first day of the month, sunrise is at 06:28 and sunset at 20:40. On the last day of September, sunrise is at 07:39 and sunset at 19:08 EEST.
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Pyhäranta, the average seawater temperature in September is 10.3°C (50.5°F). Swimming in 10.3°C (50.5°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
In Pyhäranta, Finland, the average day length in September is 12h and 54min.
In September, on the first day of the month, sunrise is at 06:28 and sunset at 20:40. On the last day of the month, sunrise is at 07:39 and sunset at 19:08 EEST.
Average sea temperature in September
Pyhäranta, Finland
- Average sea temperature in September: 10.3°C
The best month for swimming (with the highest average sea temperature) is August (13.1°C).
The coldest months (with the lowest average sea temperature) are February and March (-0.3°C).
Average daylight in September
Pyhäranta, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).





