Île de l'Est Island

Eastern island of the Kerguelen archipelago

Part of the Kerguelen archipelago in the southern Indian Ocean, Île de l'Est is visited mainly by scientists and expedition passengers for subantarctic bird colonies and seal rookeries.

Main image

Île de l'Est at a Glance#

Address: Île de l’Est, Kerguelen Islands, French Southern and Antarctic Lands (Terres australes et antarctiques françaises)

Website: https://www.legifrance.gouv.fr/ (territorial administration pages)

About Île de l'Est#

Île de l’Est is an uninhabited island in the Kerguelen archipelago in the southern Indian Ocean, part of the French Southern and Antarctic Lands. The island is one of several remote, subantarctic islands in the group and lies within a sparsely populated maritime territory.

The island is volcanic in origin and sits within a harsh subantarctic climate zone characterised by strong winds and cool temperatures year-round. There are no permanent settlements and the island is principally of interest for scientific and wildlife observations rather than tourism.

Île de l’Est is located within the Kerguelen Islands, a remote archipelago administered from the French Southern and Antarctic Lands; the islands lie well south of the Indian Ocean’s temperate zones and are accessible only by long-range expedition vessels.

How to Get to Île de l'Est#

Île de l’Est is reached only by expedition ship or French research vessel from the southern Indian Ocean. There are no regular passenger services; travel is arranged through scientific or governmental channels and permitted only under strict regulations.

Tips for Visiting Île de l'Est#

  • There are no tourist facilities; any landing requires prior permission and careful planning with polar authorities.
  • Bring cold-weather gear rated for subantarctic conditions and detailed charts; conditions change rapidly around Kerguelen.
  • Respect wildlife and nesting seabirds; approach sites quietly and avoid disturbing colonies.

Best Time to Visit Île de l'Est#

The austral summer (December-March) is the only realistic visiting season due to stormy seas and cold conditions the rest of the year.

Austral summer
December-March · 0-8°C
The only practical window for access: sea and air conditions are least hostile, with abundant birdlife and milder temperatures.
Shoulder season
November, April · -2-10°C
Weather is unpredictable but occasionally passable for research vessels; snow and storms remain possible.

Weather & Climate near Île de l'Est#

Climate

Île de l'Est's climate is classified as Tundra - Tundra climate with cold summers (peaking in February) and cold winters (coldest in August). Temperatures range from 1°C to 12°C. Heavy rainfall (2429 mm/year), wettest in May.

Air Quality: AQI 12 Good
Temperature & Rainfall
Temperature Range
12°
Warmest Month
1°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 5° - 11° 4° 217 mm - - 6.7 m/s - -
February - 6° - 12° 5° 207 mm - - 7.0 m/s - -
March - 5° - 11° 4° 195 mm - - 7.8 m/s - -
April - 4° - 10° 3° 249 mm - - 7.2 m/s - -
May - 3° - 8° 0° 289 mm - - 7.7 m/s - -
June - 2° - 7° -2° 225 mm - - 12.2 m/s - -
July - 1° - 6° -2° 214 mm - - 8.8 m/s - -
August - 1° - 6° -1° 182 mm - - 6.1 m/s - -
September - 1° - 6° -1° 157 mm - - 5.7 m/s - -
October - 2° - 7° -1° 144 mm - - 7.4 m/s - -
November - 3° - 8° 1° 154 mm - - 6.8 m/s - -
December - 4° - 10° 3° 196 mm - - 7.0 m/s - -