Sejerø

Island Small Danish island in the Kattegat sea

In Kattegat off Zealand, Sejerø draws cyclists and swimmers to quiet beaches, farmed landscapes and small fishing villages; travelers find galleries, local produce and seasonal ferry connections to the mainland.

Main image

Sejerø is an island in the Kattegat sea off the west coast of Zealand in Denmark and administratively part of Kalundborg Municipality. It is a low-lying island with small villages and a coastline of beaches and rocky shores.

The island is primarily used for seasonal tourism, local agriculture and as a quiet residential community, with walking tracks and coastal viewpoints around its perimeter. Birdwatching and coastal recreation are common activities in summer.

Historically the island has been a small agricultural and fishing community; in modern times seasonal holiday homes and visitor services have grown while retaining a low-density settlement pattern. Ferry services link the island to the Zealand mainland.

Sejerø lies northwest of Zealand in the Kattegat, accessible by ferry from Havnsø on the Zealand coast and forming part of the archipelago off Denmark’s eastern shores.

  • Ferry link: Served by a regular ferry link from the Zealand coast at Havnsø, providing the main public access to the island.
  • Character: Small settlements and seasonal holiday homes make the island a low-density holiday destination with coastal paths and birdwatching opportunities.
Sejerø
Sejerø (island), Kalundborg Municipality, Zealand, Denmark
55.8899, 11.1460

Tips for Visiting Sejerø #

  • Check the ferry timetable before you travel and plan arrival/departure around that schedule-Sejerø is served by scheduled ferries and services can be infrequent outside high season.
  • Bring or rent a bicycle on the island to cover more coastline and countryside; the compact size makes cycling the easiest way to reach quiet beaches and farm tracks that many daytrippers miss.
  • Time your visit for late afternoon light on the western coast for scenic views and calmer winds; shops and cafés on the island are limited, so plan meals around service hours.

Best Time to Visit Sejerø #

Visit in summer for swimming and outdoor activities, or in shoulder seasons for milder weather and fewer visitors.

Summer
June-August · 15-22°C (approx.)
Warmest, sunniest time ideal for beaches, cycling and outdoor cafés-this is peak visitor season.
Spring/Autumn
April-May, September-October · 5-15°C (approx.)
Milder temperatures and fewer crowds-good for walks around the island and birdwatching.
Winter
November-March · 0-6°C (approx.)
Cool, windy and quieter; some seasonal services may be limited.

Weather & Climate near Sejerø #

Climate

Sejerø's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in August) and cold winters (coldest in February). Temperatures range from -1°C to 20°C. Moderate rainfall (534 mm/year).

Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
27°
Warmest Month
-7°
Coldest Month
Monthly Conditions

January

January is cold with highs of 3°C and lows of -1°C. Moderate rainfall (41 mm), mostly overcast skies, and breezy conditions.

36 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
91%
Humidity
Very Humid

Weather

41 mm
Rainfall
7.1 m/s
Wind
Breezy
0.0
UV Index
Low
7.6h daylight

February

February is the coolest month with highs of 2°C and lows of -1°C. The driest month with just 26 mm, mostly overcast skies, and breezy conditions.

40 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
90%
Humidity
Very Humid

Weather

26 mm
Rainfall
6.6 m/s
Wind
Breezy
0.1
UV Index
Low
9.4h daylight

March

March is cold with highs of 4°C and lows of 1°C. Moderate rainfall (33 mm), partly cloudy skies, and breezy conditions.

50 Acceptable

Comfort

Feels Like Cold
C
Temperature
87%
Humidity
Very Humid

Weather

33 mm
Rainfall
6.3 m/s
Wind
Breezy
0.3
UV Index
Low
11.7h daylight

April

April is cold with highs of 9°C and lows of 3°C. Moderate rainfall (32 mm) and partly cloudy skies.

66 Good

Comfort

Feels Like Cold
C
Temperature
83%
Humidity
Very Humid

Weather

32 mm
Rainfall
5.5 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
14.0h daylight

May

May is cool with highs of 15°C and lows of 8°C. Moderate rainfall (39 mm) and partly cloudy skies.

64 Good

Comfort

11°
Feels Like Cool
11°C
Temperature
15°
81%
Humidity
Very Humid

Weather

39 mm
Rainfall
5.2 m/s
Wind
Light Breeze
1.1
UV Index
High
16.0h daylight

June

June is cool with highs of 18°C and lows of 11°C. Moderate rainfall (48 mm) and partly cloudy skies.

70 Very Good

Comfort

15°
Feels Like Cool
15°C
Temperature
11° 18°
80%
Humidity
Very Humid

Weather

48 mm
Rainfall
5.3 m/s
Wind
Light Breeze
1.4
UV Index
High
17.1h daylight

July

July is cool with highs of 20°C and lows of 13°C. The wettest month with 56 mm of rain and partly cloudy skies.

72 Very Good

Comfort

17°
Feels Like Cool
17°C
Temperature
13° 20°
81%
Humidity
Very Humid

Weather

56 mm
Rainfall
5.3 m/s
Wind
Light Breeze
1.3
UV Index
High
16.6h daylight

August

August is cool with highs of 20°C and lows of 14°C. Moderate rainfall (54 mm) and partly cloudy skies.

72 Very Good

Comfort

17°
Feels Like Cool
17°C
Temperature
14° 21°
82%
Humidity
Very Humid

Weather

54 mm
Rainfall
5.3 m/s
Wind
Light Breeze
1.0
UV Index
Moderate
14.8h daylight

September

September is cool with highs of 16°C and lows of 11°C. Moderate rainfall (55 mm), partly cloudy skies, and breezy conditions.

68 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 16°
83%
Humidity
Very Humid

Weather

55 mm
Rainfall
6.2 m/s
Wind
Breezy
0.6
UV Index
Moderate
12.6h daylight

October

October is cool with highs of 12°C and lows of 8°C. Moderate rainfall (52 mm), mostly overcast skies, and breezy conditions.

56 Acceptable

Comfort

10°
Feels Like Cool
10°C
Temperature
12°
86%
Humidity
Very Humid

Weather

52 mm
Rainfall
6.6 m/s
Wind
Breezy
0.2
UV Index
Low
10.3h daylight

November

November is cold with highs of 7°C and lows of 4°C. Moderate rainfall (51 mm), mostly overcast skies, and breezy conditions.

46 Poor

Comfort

Feels Like Cold
C
Temperature
89%
Humidity
Very Humid

Weather

51 mm
Rainfall
7.2 m/s
Wind
Breezy
0.1
UV Index
Low
8.1h daylight

December

December is cold with highs of 4°C and lows of 1°C. Moderate rainfall (47 mm), mostly overcast skies, and breezy conditions.

42 Poor

Comfort

Feels Like Cold
C
Temperature
91%
Humidity
Very Humid

Weather

47 mm
Rainfall
7.1 m/s
Wind
Breezy
0.0
UV Index
Low
6.9h daylight

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