French Austral Lands and Seas

Nature Reserve Remote French southern islands and vast surrounding marine ecosystems

France’s subantarctic islands, reefs and oceanic territories host seals, seabirds and research stations; access is by expedition cruise or scientific permit to study wildlife and marine ecosystems.

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The French Austral Lands and Seas are a French overseas natural territory comprising several sub-Antarctic island groups and a sector of Antarctica under French administration. The property encompasses large marine areas and isolated islands with high ecological importance for seabirds, seals and marine life.

Key natural attributes include extensive seabird breeding colonies, significant populations of pinnipeds and undisturbed marine ecosystems that support long-distance foraging species. The islands present volcanic and glacial-influenced landscapes with limited human habitation beyond research stations.

These territories have been managed as French Southern and Antarctic Lands with a focus on scientific research, resource management and conservation of wilderness values. Conservation measures and scientific monitoring underpin management given the ecological sensitivity and remoteness of the areas.

The components are scattered across the southern Indian Ocean and Antarctic sector, including the Crozet and Kerguelen Islands, Amsterdam and Saint-Paul, and Ade9lie Land on the Antarctic coast; all lie far from continental landmasses and are reached mainly by specialised vessels or aircraft.

  • Sub-Antarctic and Antarctic biodiversity: Covers French sub-Antarctic island groups and a sector of Antarctica under French administration, notable for large seabird colonies, marine mammals and relatively undisturbed sub-Antarctic ecosystems.
  • Restricted access and research focus: Access is tightly controlled and primarily by research or authorised expedition; the territories are remote and managed for scientific research and conservation.

What to See #

  • Crozet Islands: The Crozet Islands, a sub-Antarctic archipelago important for large seabird colonies and marine biodiversity within the southern Indian Ocean.
  • Kerguelen Islands: The Kerguelen Islands, a large sub-Antarctic group with volcanic landscapes and diverse seabird and seal populations.
  • Amsterdam and Saint-Paul: Amsterdam and Saint-Paul islands, smaller volcanic islands hosting seabird breeding colonies and research stations.
  • Ade9lie Land: Ade9lie Land (Terre Ade9lie), the French claim sector on the Antarctic continent included within the property's geographic scope for its polar marine and coastal environments.
French Austral Lands and Seas
-49.3804, 69.3528

How to Get to French Austral Lands and Seas #

These territories are remote. Access usually comes by specialized scientific vessels or expedition cruise ships departing from southern hemisphere ports (e.g., Réunion for subantarctic islands). Travel is expedition-based and must be arranged in advance through tour operators or scientific programs.

Tips for Visiting French Austral Lands and Seas #

  • Prepare for remote travel: many of the French Southern and Antarctic Lands are accessible only by scientific expedition or specific tourist cruises.
  • If on a cruise, bring warm, waterproof layers and binoculars for marine mammals and seabird colonies-the wildlife is the primary attraction.

Best Time to Visit French Austral Lands and Seas #

Visits are seasonal and expedition-based; southern summer is the practical window for travel and wildlife observation.

Southern summer (November-March)
Nov-Mar · 0-10°C (subantarctic islands)
Milder weather and the breeding season for many seabirds and seals; main period for expedition cruises.

Weather & Climate near French Austral Lands and Seas #

Climate

French Austral Lands and Seas's climate is classified as Tundra - Tundra climate with cold summers (peaking in February) and freezing winters (coldest in August). Temperatures range from -4°C to 9°C. Moderate rainfall (921 mm/year), distributed fairly evenly throughout the year.

Air Quality: AQI 12 Good
Best Time to Visit
FebruaryMarchJanuary
Temperature & Rainfall
Temperature Range
13°
Warmest Month
-12°
Coldest Month
Monthly Conditions

January

January is cold with highs of 9°C and lows of 1°C. The wettest month with 92 mm of rain, mostly overcast skies, and breezy conditions.

40 Poor

Comfort

Feels Like Cold
C
Temperature
88%
Humidity
Very Humid

Weather

92 mm
Rainfall
6.2 m/s
Wind
Breezy
1.6
UV Index
Very High
15.5h daylight

February

February is cold with highs of 9°C and lows of 2°C. Moderate rainfall (69 mm) and mostly overcast skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
88%
Humidity
Very Humid

Weather

69 mm
Rainfall
5.8 m/s
Wind
Light Breeze
1.3
UV Index
High
14.1h daylight

March

March is cold with highs of 8°C and lows of 1°C. Moderate rainfall (74 mm), mostly overcast skies, and breezy conditions.

42 Poor

Comfort

Feels Like Cold
C
Temperature
89%
Humidity
Very Humid

Weather

74 mm
Rainfall
7.3 m/s
Wind
Breezy
0.8
UV Index
Moderate
12.3h daylight

April

April is cold with highs of 6°C and lows of 0°C. Moderate rainfall (76 mm), mostly overcast skies, and breezy conditions.

36 Poor

Comfort

Feels Like Cold
C
Temperature
90%
Humidity
Very Humid

Weather

76 mm
Rainfall
9.1 m/s
Wind
Breezy
0.3
UV Index
Low
10.4h daylight

May

May is cold with highs of 5°C and lows of -2°C. Moderate rainfall (67 mm), mostly overcast skies, and breezy conditions.

38 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
90%
Humidity
Very Humid

Weather

67 mm
Rainfall
9.1 m/s
Wind
Breezy
0.1
UV Index
Low
8.8h daylight

June

June is cold with highs of 4°C and lows of -3°C. Regular rainfall (82 mm), mostly overcast skies, and windy conditions.

36 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
90%
Humidity
Very Humid

Weather

82 mm
Rainfall
10.4 m/s
Wind
Windy
0.0
UV Index
Low
8.0h daylight

July

July is freezing with highs of 4°C and lows of -4°C. Regular rainfall (84 mm), mostly overcast skies, and breezy conditions.

36 Poor

Comfort

Feels Like Freezing
C
Temperature
-4°
90%
Humidity
Very Humid

Weather

84 mm
Rainfall
9.5 m/s
Wind
Breezy
0.1
UV Index
Low
8.4h daylight

August

August is the coldest month with highs of 3°C and lows of -4°C. Moderate rainfall (75 mm), mostly overcast skies, and windy conditions.

36 Poor

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-4°
90%
Humidity
Very Humid

Weather

75 mm
Rainfall
10.0 m/s
Wind
Windy
0.2
UV Index
Low
9.8h daylight

September

September is freezing with highs of 3°C and lows of -3°C. Moderate rainfall (73 mm), mostly overcast skies, and breezy conditions.

40 Poor

Comfort

Feels Like Freezing
C
Temperature
-3°
88%
Humidity
Very Humid

Weather

73 mm
Rainfall
8.5 m/s
Wind
Breezy
0.4
UV Index
Low
11.6h daylight

October

October is cold with highs of 5°C and lows of -3°C. Moderate rainfall (70 mm), mostly overcast skies, and breezy conditions.

40 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
87%
Humidity
Very Humid

Weather

70 mm
Rainfall
7.7 m/s
Wind
Breezy
0.8
UV Index
Moderate
13.4h daylight

November

November is cold with highs of 6°C and lows of -2°C. Moderate rainfall (78 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
87%
Humidity
Very Humid

Weather

78 mm
Rainfall
5.7 m/s
Wind
Light Breeze
1.3
UV Index
High
15.1h daylight

December

December is cold with highs of 7°C and lows of 0°C. Regular rainfall (81 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
87%
Humidity
Very Humid

Weather

81 mm
Rainfall
4.9 m/s
Wind
Light Breeze
1.7
UV Index
Very High
16.0h daylight

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