Weather in September
September marks the onset of autumn in Siglufjörður, as the sea temperature begins to dip to 7.2°C (45°F). The daylight hours continue on a downward trajectory, settling at around 13.1 hours. Compared to the warmer period of August, September brings a perceptible change in the climate, with a gradual cooling trend. It's a great time to relish the changing foliage, offering a scenic treat to residents and tourists alike.
Note: If planning to swim in 7.2°C (45°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.
On the first day of September in Siglufjörður, sunrise is at 05:52 and sunset at 20:38. On the last day of the month, sunrise is at 07:25 and sunset at 18:45 GMT.
[Resources]Sea temperature
In Siglufjörður, Iceland, the average seawater temperature in September is 7.2°C (45°F).Note: If planning to swim in 7.2°C (45°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 Siglufjörður, the average length of the day in September is 13h and 6min.On the first day of September in Siglufjörður, sunrise is at 05:52 and sunset at 20:38. On the last day of the month, sunrise is at 07:25 and sunset at 18:45 GMT.
Frequently asked questions
How cold is the water in September in Siglufjörður?
In Siglufjörður, Iceland, in September, the average water temperature is 7.2°C (45°F). Swimming in 7.2°C (45°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.
How many hours of daylight does Siglufjörður have in September?
The average day length in September is 13h and 6min.
When are sunrise and sunset in September in Siglufjörður?
On the first day of September in Siglufjörður, Iceland, sunrise is at 05:52 and sunset at 20:38. On the last day of the month, sunrise is at 07:25 and sunset at 18:45 GMT.
Average sea temperature in September
Siglufjörður, Iceland
- Average sea temperature in September: 7.2°C
The best month for swimming (with the highest average sea temperature) is August (9.2°C).
The coldest month (with the lowest average sea temperature) is February (1.9°C).
Average daylight in September
Siglufjörður, Iceland
- Average daylight in September: 13h and 1min
The month with the longest days is July (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 3h and 0min).
Siglufjörður, Iceland
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