Henrietta Island

Island Remote Arctic island in the Sakha Republic

Main image

Henrietta Island is an uninhabited Arctic island within the De Long Islands group of the Sakha Republic, Russia. It lies in the East Siberian Sea and is part of a remote polar archipelago.

There are no visitor services or infrastructure on the island; landings are extremely rare and typically undertaken only by scientific or expedition vessels. The island is subject to sea ice and polar weather for much of the year.

The island is part of a larger cluster of Arctic islands and has had no permanent settlements in modern times. It is primarily of geographic and scientific interest rather than tourist use.

Geographically it sits in the high Arctic within the East Siberian Sea under the administration of the Sakha Republic, surrounded by Arctic pack ice for much of the year.

  • Access: No permanent population or visitor facilities; access is possible only by expedition vessel and is heavily dependent on Arctic ice conditions.
Henrietta Island
77.0914, 156.5538

How to Get to Henrietta Island #

There is no scheduled transport to Henrietta Island. Access requires an Arctic expedition vessel or research icebreaker with permits from the Russian authorities; travel is seasonal (summer open-water window) and logistically complex.

Best Time to Visit Henrietta Island #

Henrietta Island is remote Arctic tundra reached only by icebreaker or long-range expedition; visits are rare and weather-dependent.

Arctic summer
Jun-Aug · 0-5°C (32-41°F)
Sea-ice retreat makes approach possible, but weather is still harsh and access is by expedition vessel only.
Arctic winter
Nov-Mar · -30--10°C (-22-14°F)
Sea ice seals off the island; only scientific or military operations visit in extremely rare circumstances.

Weather & Climate near Henrietta Island #

Climate
Temperature & Rainfall
Temperature Range
Warmest Month
-41°
Coldest Month
Monthly Conditions

January

Weather

0.0
UV Index
Low
0.0h daylight

February

Weather

0.0
UV Index
Low
2.1h daylight

March

Weather

0.0
UV Index
Low
10.9h daylight

April

Weather

0.3
UV Index
Low
19.5h daylight

May

Weather

1.0
UV Index
High
24.0h daylight

June

Weather

1.3
UV Index
High
24.0h daylight

July

Weather

1.0
UV Index
Moderate
24.0h daylight

August

Weather

0.4
UV Index
Low
22.4h daylight

September

Weather

0.1
UV Index
Low
13.8h daylight

October

Weather

0.0
UV Index
Low
5.4h daylight

November

Weather

0.0
UV Index
Low
0.0h daylight

December

Weather

0.0
UV Index
Low
0.0h daylight

Nearby Attractions to Henrietta Island