Weather in September
September marks the onset of late summer and early fall, with temperatures beginning to dip in Sandefjord. Notably, the sea temperature falls to 15.8°C (60.4°F), introducing a cooler atmosphere. The days start to shorten, paving the way for prolonged twilight hours. Despite the decrease in daylight, the city remains etched with an autumn gold palette. September befriends the pleasant breeze and is often associated with serene walks and peaceful boat rides in the dwindling hours of daylight.
Note: For most, swimming in 15.8°C (60.4°F) is not a pleasant experience. As the temperature falls from 21°C (69.8°F) to 15°C (59°F), controlling one's breathing becomes more difficult.
On the first day of September in Sandefjord, sunrise is at 06:17 and sunset at 20:20. On the last day of the month, sunrise is at 07:23 and sunset at 18:54 CEST.
[Resources]Sea temperature
In Sandefjord, Norway, in September, the average water temperature is 15.8°C (60.4°F).Note: For most, swimming in 15.8°C (60.4°F) is not a pleasant experience. As the temperature falls from 21°C (69.8°F) to 15°C (59°F), controlling one's breathing becomes more difficult.
Daylight
The average length of the day in September in Sandefjord is 12h and 50min.On the first day of September in Sandefjord, sunrise is at 06:17 and sunset at 20:20. On the last day of the month, sunrise is at 07:23 and sunset at 18:54 CEST.
Frequently asked questions
What is the sea temperature in September in Sandefjord?
In September, the average sea temperature is 15.8°C (60.4°F). For swimming, a surface water temperature of 15.8°C (60.4°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
How many hours of daylight does Sandefjord have in September?
The average day length in September in Sandefjord, Norway, is 12h and 50min.
When is the sunrise / sunset in September in Sandefjord?
On the first day of September in Sandefjord, sunrise is at 06:17 and sunset at 20:20. On the last day of the month, sunrise is at 07:23 and sunset at 18:54 CEST.
Average sea temperature in September
Sandefjord, Norway
- Average sea temperature in September: 15.8°C
The best month for swimming (with the highest average sea temperature) is August (18.4°C).
The coldest month (with the lowest average sea temperature) is March (2.8°C).
Average daylight in September
Sandefjord, Norway
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
Sandefjord, Norway
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
