Marion Island

Island Subantarctic island administered by South Africa for research

Marion Island, part of South Africa’s Prince Edward Islands, is a subantarctic research base with large colonies of seals and seabirds. Access is restricted to scientific expeditions due to weather and conservation rules.

Main image

Marion Island is a subantarctic island in the Indian Ocean, administered by South Africa as part of the Prince Edward Islands. It is volcanic in origin and largely left to scientific study and wildlife.

Human presence consists of an on-island research station occupied by rotating scientific and support teams rather than a civilian population. The island supports large seabird colonies and seal populations and is used for ecological, meteorological and geological research.

South Africa manages the island as a scientific outpost and access is tightly controlled; it is not a tourist destination. Marion Island lies in the subantarctic waters of the southern Indian Ocean and is remote from continental landmasses.

  • Administration: Part of the Prince Edward Islands group and administered by South Africa for scientific research purposes.

What to See #

  • Research station: A year-round South African research station occupied by rotating scientific and support personnel conducting meteorological, biological and geological research; access is restricted to authorised personnel.
Marion Island
Marion Island, Prince Edward Islands group, Indian Ocean (administratively Western Cape, South Africa)
-46.9034, 37.7545
No public tourist visits; Marion Island is part of South Africa's Prince Edward Islands reserve and access is restricted to researchers and support staff

How to Get to Marion Island #

Access to Marion Island is by dedicated research vessel operated by the South African Department of Environment, Forestry and Fisheries. Voyages depart from Cape Town and take several days; all visitors require research permits and must travel as part of an approved scientific or logistical team.

Tips for Visiting Marion Island #

  • Access is strictly controlled - obtain permits through the South African Department of Environment, Forestry and Fisheries well in advance.
  • Bring cold-weather gear and insect repellant for tussock zones; weather shifts rapidly and conditions are severe.
  • If part of a research expedition, follow all biosecurity measures: ships and gear are subject to strict cleaning to prevent invasive species.

Best Time to Visit Marion Island #

Visits are limited to scientific expeditions and require permits; the research season (Southern Hemisphere summer) is when access is possible.

Southern summer (research season)
November-March · 0-10°C
The only realistic window for staffed scientific missions; sea conditions are least hostile and daylight is long.
Autumn/Winter
April-October · -5-5°C
Severe storms and isolation increase; no routine visitor access.

Weather & Climate near Marion Island #

Climate

Marion Island's climate is classified as Tundra - Tundra climate with consistently warm temperatures year-round. Temperatures range from -3°C to 8°C. Heavy rainfall (2660 mm/year), wettest in May, distributed fairly evenly throughout the year.

Best Time to Visit
AugustFebruarySeptember
Temperature & Rainfall
Temperature Range
12°
Warmest Month
-2°
Coldest Month
Monthly Conditions

January

January is cold with highs of 8°C and lows of 0°C. Heavy rain (242 mm), mostly overcast skies, and breezy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
88%
Humidity
Very Humid

Weather

242 mm
Rainfall
9.3 m/s
Wind
Breezy
1.9
UV Index
Very High
15.1h daylight

February

February is cold with highs of 8°C and lows of 1°C. Heavy rain (210 mm), mostly overcast skies, and breezy conditions.

30 Poor

Comfort

Feels Like Cold
C
Temperature
88%
Humidity
Very Humid

Weather

210 mm
Rainfall
9.1 m/s
Wind
Breezy
1.5
UV Index
Very High
13.8h daylight

March

March is cold with highs of 7°C and lows of 1°C. Heavy rain (219 mm), mostly overcast skies, and windy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
87%
Humidity
Very Humid

Weather

219 mm
Rainfall
11.5 m/s
Wind
Windy
0.9
UV Index
Moderate
12.3h daylight

April

April is cold with highs of 5°C and lows of 0°C. Heavy rain (255 mm), mostly overcast skies, and windy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
88%
Humidity
Very Humid

Weather

255 mm
Rainfall
10.5 m/s
Wind
Windy
0.4
UV Index
Low
10.6h daylight

May

May is cold with highs of 3°C and lows of -1°C. The wettest month with heavy rain (265 mm), mostly overcast skies, and breezy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
86%
Humidity
Very Humid

Weather

265 mm
Rainfall
9.5 m/s
Wind
Breezy
0.2
UV Index
Low
9.2h daylight

June

June is cold with highs of 2°C and lows of -2°C. Heavy rain (221 mm), mostly overcast skies, and windy conditions.

20 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
86%
Humidity
Very Humid

Weather

221 mm
Rainfall
11.1 m/s
Wind
Windy
0.1
UV Index
Low
8.4h daylight

July

July is cold with highs of 3°C and lows of -2°C. Heavy rain (212 mm), mostly overcast skies, and breezy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
85%
Humidity
Very Humid

Weather

212 mm
Rainfall
9.7 m/s
Wind
Breezy
0.1
UV Index
Low
8.8h daylight

August

August is the coolest month with highs of 3°C and lows of -3°C. Significant rainfall (195 mm), mostly overcast skies, and breezy conditions.

32 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
85%
Humidity
Very Humid

Weather

195 mm
Rainfall
7.4 m/s
Wind
Breezy
0.2
UV Index
Low
10.0h daylight

September

September is cold with highs of 4°C and lows of -3°C. Heavy rain (201 mm), mostly overcast skies, and breezy conditions.

30 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
84%
Humidity
Very Humid

Weather

201 mm
Rainfall
7.0 m/s
Wind
Breezy
0.5
UV Index
Moderate
11.6h daylight

October

October is cold with highs of 5°C and lows of -3°C. Heavy rain (202 mm), mostly overcast skies, and breezy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
86%
Humidity
Very Humid

Weather

202 mm
Rainfall
9.5 m/s
Wind
Breezy
1.0
UV Index
High
13.3h daylight

November

November is cold with highs of 6°C and lows of -2°C. Heavy rain (203 mm), mostly overcast skies, and breezy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
86%
Humidity
Very Humid

Weather

203 mm
Rainfall
9.1 m/s
Wind
Breezy
1.5
UV Index
Very High
14.7h daylight

December

December is cold with highs of 7°C and lows of -1°C. Heavy rain (235 mm), mostly overcast skies, and breezy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
87%
Humidity
Very Humid

Weather

235 mm
Rainfall
9.2 m/s
Wind
Breezy
1.9
UV Index
Very High
15.5h daylight

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