17.09
thu
thu
Day
59°F
NE 14 mph
Precip.
16%
16%
Night
54°F
E 13 mph
Precip.
38%
38%
18.09
fri
fri
Day
57°F
E 20 mph
Precip.
38%
38%
Night
55°F
NE 15 mph
Precip.
24%
24%
19.09
sat
sat
Day
63°F
NE 17 mph
Precip.
23%
23%
Night
57°F
NE 16 mph
Precip.
23%
23%
20.09
sun
sun
Day
57°F
E 25 mph
Precip.
30%
30%
Night
55°F
E 28 mph
Precip.
7%
7%
21.09
mon
mon
Day
61°F
SE 8 mph
Precip.
4%
4%
Night
54°F
N 7 mph
Precip.
6%
6%
22.09
tue
tue
Day
57°F
NW 16 mph
Precip.
3%
3%
Night
52°F
SE 7 mph
Precip.
15%
15%
23.09
wed
wed
Day
59°F
NW 6 mph
Precip.
11%
11%
Night
54°F
N 2 mph
Precip.
18%
18%
sea water
temperature
temperature
| Frederikshavn |
monthly
weather
weather
| Frederikshavn |
current
weather
weather
| Frederikshavn |
14 days
forecast
forecast
| Frederikshavn |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 61.3°F. The highest and lowest sea temperatures during the month were 63.5°F and 59.5°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 55.7°F. The highest and lowest sea temperatures during the month were 58.1°F and 51.6°F.
Air temperature in Frederikshavn, °F
Precipitation total in Frederikshavn, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Frederikshavn
Frederikshavn on a weather map
Places in Denmark:
Name
°F
24 Hours Forecast
Frederikshavn
Local time: 00:49
September 17, thursday
0300
55°F
E
22 mph
22 mph
0600
55°F
E
19 mph
19 mph
0900
55°F
E
17 mph
17 mph
1200
59°F
NE
14 mph
14 mph
1500
57°F
NE
11 mph
11 mph
1800
57°F
NE
15 mph
15 mph
2100
57°F
NE
16 mph
16 mph
September 18, friday
0000
54°F
E
13 mph
13 mph
