, humid and rainy, influenced by currents from the Atlantic and the North Sea, with cold, gray winters and mild or pleasantly warm summers.
The island is located in northern Germany, a short distance from the Schleswig-Holstein coast, and is connected to the mainland by a bridge.
blows frequently, and can be intense, especially from November to March. Not surprisingly, windsurfing and kitesurfing are practiced here.
is not very cold for the latitude, it is often humid, windy and rainy. There may be relatively mild periods, when Atlantic currents prevail, and other colder periods, when the temperature drops below freezing and it can snow.
, in which temperatures can drop as low as -10 °C (14 °F) or even below. In fact, Scandinavian high pressure systems can reverse the normal circulation and bring very cold periods, which in the past were more frequent. The cold record is -18.5 °C (-1.5 °F), set in February 1972. More recently, the temperature dropped to -14.5 °C (6 °F) in March 1986 and January 1987, and to -11.5 °C (11.5 °F) in February 2012.
Even in spring, until April or the first half of May, there is often cold and unstable weather. In April, there may still be some snow showers.
, the temperatures are generally pleasant and lend themselves to outdoor activities, although there are cool and rainy periods, and sometimes thunderstorms can break out.
can occur, generally of short duration, which in recent years are becoming more frequent due to global warming, and in which the temperature can exceed 28 °C (82 °F). However, given the latitude and the short distance from the sea, the heat is less intense and lasting than in the central-southern German plains. On the hottest days of the year, the temperature typically reaches 29/30 °C (84/86 °F). The highest record is 34 °C (93.2 °F) and was set in August 2022.
to visit Fehmarn runs from mid-May to mid-September, since it is the warmest and sunniest period of the year. Sometimes, it can be hot in July and August, while in other circumstances, nights can be cool even in these months, so it can be useful to bring a sweatshirt or sweater and a light jacket.
. Here are the average temperatures.
January, the coldest month of the year, is generally a cold month. The average temperature is of
2 °C, with a minimum of
0,4 °C and a maximum of
3,6 °C.
On the coldest nights of the month, the temperature usually drops to around
-6 °C. However, it dropped to
-11,4 °C in January 1997.
On the warmest days of the month, the temperature usually reaches around
8,5 °C. However, it reached
12,9 °C in January 2020.
Precipitation amounts to
45 mm, distributed over 10 days.
The day lasts on average 8 hours and 0 minutes.
There are on average 1,5 hours of sunshine per day. So, the sun shines 18% of the time.
The average humidity is 93%. Hence, the air is normally humid.
The average wind speed is of
23 kph.
The average sea temperature is of
2,5 °C. Therefore, the sea is very cold for swimming.
February is generally a cold month. The average temperature is of
2,2 °C, with a minimum of
0,5 °C and a maximum of
4 °C.
On the coldest nights of the month, the temperature usually drops to around
-4,5 °C. However, it dropped to
-11,5 °C in February 2012.
On the warmest days of the month, the temperature usually reaches around
9 °C. However, it reached
14,2 °C in February 2002.
Precipitation amounts to
35 mm, distributed over 8 days.
The day lasts on average 9 hours and 50 minutes.
There are on average 2,5 hours of sunshine per day. So, the sun shines 25% of the time.
The average humidity is 90%. Hence, the air is normally humid.
The average wind speed is of
21 kph.
The average sea temperature is of
1,9 °C. Therefore, the sea is very cold for swimming.
March is generally a quite cold month. The average temperature is of
4,2 °C, with a minimum of
1,9 °C and a maximum of
6,4 °C.
On the coldest nights of the month, the temperature usually drops to around
-3 °C. However, it dropped to
-9,9 °C in March 2006.
On the warmest days of the month, the temperature usually reaches around
14 °C. However, it reached
19,2 °C in March 2017.
Precipitation amounts to
35 mm, distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4,5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is of
21 kph.
The average sea temperature is of
2,7 °C. Therefore, the sea is very cold for swimming.
April is generally a quite mild month. The average temperature is of
7,8 °C, with a minimum of
4,8 °C and a maximum of
10,9 °C.
On the coldest nights of the month, the temperature usually drops to around
0,5 °C. However, it dropped to
-2,1 °C in April 2003.
On the warmest days of the month, the temperature usually reaches around
18,5 °C. However, it reached
25,2 °C in April 2018.
Precipitation amounts to
30 mm, distributed over 7 days.
The day lasts on average 14 hours and 10 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
18 kph.
The average sea temperature is of
5,8 °C. Therefore, the sea is very cold for swimming.
May is generally a mild month. The average temperature is of
12,2 °C, with a minimum of
9 °C and a maximum of
15,3 °C.
On the coldest nights of the month, the temperature usually drops to around
4 °C. However, it dropped to
1 °C in May 1997.
On the warmest days of the month, the temperature usually reaches around
22,5 °C. However, it reached
29,7 °C in May 2005.
Precipitation amounts to
45 mm, distributed over 8 days.
The day lasts on average 16 hours and 5 minutes.
There are on average 8,5 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
17 kph.
The average sea temperature is of
10,4 °C. Therefore, the sea is very cold for swimming.
June is generally a very mild month. The average temperature is of
15,6 °C, with a minimum of
12,6 °C and a maximum of
18,7 °C.
On the coldest nights of the month, the temperature usually drops to around
8,5 °C. However, it dropped to
4,7 °C in June 2012.
On the warmest days of the month, the temperature usually reaches around
26 °C. However, it reached
32,6 °C in June 2019.
Precipitation amounts to
55 mm, distributed over 9 days.
The day lasts on average 17 hours and 10 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
There are on average 8,5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
16 kph.
The average sea temperature is of
14,6 °C. Therefore, the sea is very cold for swimming.
July is generally a very mild month. The average temperature is of
18 °C, with a minimum of
14,9 °C and a maximum of
21 °C.
On the coldest nights of the month, the temperature usually drops to around
11,5 °C. However, it dropped to
9,4 °C in July 1998.
On the warmest days of the month, the temperature usually reaches around
27,5 °C. However, it reached
31,9 °C in July 2018.
Precipitation amounts to
55 mm, distributed over 9 days.
The day lasts on average 16 hours and 35 minutes.
There are on average 8,5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
17 kph.
The average sea temperature is of
17,4 °C. Therefore, the sea is cold for swimming.
August, the warmest month of the year, is generally a warm month. The average temperature is of
18,2 °C, with a minimum of
15,2 °C and a maximum of
21,3 °C.
On the coldest nights of the month, the temperature usually drops to around
11 °C. However, it dropped to
7,6 °C in August 2000.
On the warmest days of the month, the temperature usually reaches around
27,5 °C. However, it reached
32,4 °C in August 2009.
Precipitation amounts to
65 mm, distributed over 10 days.
The day lasts on average 14 hours and 50 minutes.
There are on average 7,5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
17 kph.
The average sea temperature is of
18,1 °C. Therefore, the sea is cold for swimming.
September is generally a very mild month. The average temperature is of
15,2 °C, with a minimum of
12,7 °C and a maximum of
17,8 °C.
On the coldest nights of the month, the temperature usually drops to around
8,5 °C. However, it dropped to
6,4 °C in September 2000.
On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
29,5 °C in September 2009.
Precipitation amounts to
55 mm, distributed over 9 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 5,5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
19 kph.
The average sea temperature is of
15,8 °C. Therefore, the sea is cold for swimming.
October is generally a mild month. The average temperature is of
10,9 °C, with a minimum of
8,8 °C and a maximum of
13 °C.
On the coldest nights of the month, the temperature usually drops to around
3,5 °C. However, it dropped to
-1 °C in October 1997.
On the warmest days of the month, the temperature usually reaches around
18,5 °C. However, it reached
24,9 °C in October 2018.
Precipitation amounts to
50 mm, distributed over 10 days.
The day lasts on average 10 hours and 25 minutes.
There are on average 3,5 hours of sunshine per day. So, the sun shines 36% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is of
21 kph.
The average sea temperature is of
12,2 °C. Therefore, the sea is very cold for swimming.
November is generally a quite mild month. The average temperature is of
6,6 °C, with a minimum of
4,9 °C and a maximum of
8,2 °C.
On the coldest nights of the month, the temperature usually drops to around
-0,5 °C. However, it dropped to
-6,5 °C in November 1998.
On the warmest days of the month, the temperature usually reaches around
13 °C. However, it reached
17,1 °C in November 2020.
Precipitation amounts to
50 mm, distributed over 10 days.
The day lasts on average 8 hours and 25 minutes.
There are on average 1,5 hours of sunshine per day. So, the sun shines 20% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is of
23 kph.
The average sea temperature is of
8,4 °C. Therefore, the sea is very cold for swimming.
December is generally a cold month. The average temperature is of
3,5 °C, with a minimum of
1,9 °C and a maximum of
5,1 °C.
On the coldest nights of the month, the temperature usually drops to around
-3,5 °C. However, it dropped to
-10,2 °C in December 2010.
On the warmest days of the month, the temperature usually reaches around
9,5 °C. However, it reached
13,9 °C in December 2006.
Precipitation amounts to
45 mm, distributed over 10 days.
The day lasts on average 7 hours and 25 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There is an average of 1 hour of sunshine per day. So, the sun shines 15% of the time.
The average humidity is 92%. Hence, the air is normally humid.
The average wind speed is of
23 kph.
The average sea temperature is of
4,3 °C. Therefore, the sea is very cold for swimming.