Weather in September
Sea temperature
In September, the average sea temperature in Rissa, Norway, is 13.1°C (55.6°F).Note: Without suitable protection, venturing into 13.1°C (55.6°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths.
Daylight
In Rissa, the average length of the day in September is 12h and 59min.On the first day of September, sunrise is at 06:06 and sunset at 20:33. On the last day of the month, sunrise is at 07:27 and sunset at 18:52 CEST.
Frequently asked questions
What is the sea water temperature in September in Rissa?
In Rissa, the average seawater temperature in September is 13.1°C (55.6°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
How many hours of daylight does Rissa have in September?
The average day length in September in Rissa, Norway, is 12h and 59min.
When is the sunrise / sunset in September in Rissa?
On the first day of September in Rissa, Norway, sunrise is at 06:06 and sunset at 20:33. On the last day of the month, sunrise is at 07:27 and sunset at 18:52 CEST.
Average sea temperature in September
Rissa, Norway
- Average sea temperature in September: 13.1°C
The best month for swimming (with the highest average sea temperature) is August (14.2°C).
The coldest month (with the lowest average sea temperature) is March (5.4°C).
Average daylight in September
Rissa, Norway
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 30min).
The month with the shortest days is December (Average daylight: 4h and 42min).
Rissa, Norway
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