Measurements:
°C
°F
Frederikshavn
42°F
NW 15 mph
Feels like: 34°F
Precip: 78%
World Resorts Denmark Frederikshavn Weather

Frederikshavn Sea Water Temperature

Current Sea Water Temperature:
+47.0°F
Maximum Sea Water Temperature in December: 48.6°F
Minimum Sea Water Temperature in December: 35.8°F
Average water temperature in December: 42.8°F

Sea Water Temperature for the Last 10 Days:

December 05 47.0°F November 30 48.2°F
December 04 47.4°F November 29 45.6°F
December 03 48.0°F November 28 42.4°F
December 02 48.6°F November 27 42.6°F
December 01 47.2°F November 26 43.4°F

When is the Warmest Sea for Frederikshavn?

According to our data for the last three years for Frederikshavn the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Frederikshavn was 65.2°F. The maximum and minimum values were 62.8°F and 68.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Frederikshavn was 66.7°F. The maximum and minimum values were 60.4°F and 73.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Frederikshavn was 62.6°F. The maximum and minimum values were 59.2°F and 65.4°F respectively.

Best Time to Visit Frederikshavn
The most sunny months:
June 14 days
May 14 days
July 14 days
The most warm months:
July 68.1 °F
August 67.6 °F
June 64.2 °F
Warmest sea temperature:
August 65.2 °F
July 64.6 °F
September 61.9 °F
The most cold months:
February 36.9 °F
January 37.4 °F
March 40.6 °F
The most rainy months:
August 5 days
June 4 days
July 4 days
The most windy months:
December 16 mph
January 16 mph
November 15 mph

Frederikshavn on the Weather Map

Denmark Resorts:
NAME
Aalborg +40
Aarhus +40
Copenhagen +42
Esbjerg +36
Frederikshavn +42
Herning +34
Odense +38
24 Hours Weather Forecast
Frederikshavn
Local time: 09:26
05 dec, friday
1200 42°F
NW
15 mph
1500 42°F
W
12 mph
1800 42°F
W
13 mph
2100 42°F
NW
13 mph
06 dec, saturday
0000 42°F
NW
12 mph
0300 42°F
NW
9 mph
0600 42°F
N
9 mph
0900 40°F
N
11 mph