Tyatya

Volcano Active stratovolcano on Russia's Kunashir Island

On Kunashir Island in the southern Kurils, Tyatya (Chachadake) is a steep stratovolcano with a conspicuous cone and caldera. Visitors come on guided trips for volcanic scenery and island wildlife.

Main image
Main image

Tyatya is an active stratovolcano on Kunashir Island in Sakhalin Oblast, Russia, and forms one of the island’s most prominent peaks. It is noted for its steep, conical profile and is part of the Kuril volcanic arc.

The volcano presents a dramatic conical silhouette rising from the island, visible from nearby coastal roads and villages. Hikers and photographers come for views of the cone and surrounding coastal landscape rather than extensive developed facilities.

Tyatya has been built by successive volcanic eruptions as part of the Kuril island arc, with continued fumarolic and eruptive activity recorded in the modern era. The volcano has been referenced in both Russian and Japanese geographic records because Kunashir is one of the southern Kuril Islands.

Tyatya sits on the southern end of Kunashir Island in the Kurils, facing the Pacific and the Nemuro Strait; the island is administered as part of Sakhalin Oblast. The nearest larger settlements are on Kunashir itself; access is typically by boat or regional ferry connections to the Kurils.

Tyatya
44.3541, 146.2510

How to Get to Tyatya #

Tyatya is on Kunashir Island in the southern Kurils. Access is typically via ferry or charter from Yuzhno‑Sakhalinsk (Sakhalin) when services operate, or by local boats from nearby ports; travel can require permits and coordination with Russian regional authorities.

Tips for Visiting Tyatya #

  • Given Tyatya's remote Kuril location, travel requires advanced permission and coordination with local authorities in Yuzhno‑Sakhalinsk.
  • Sea crossings to the Kurils can be rough and weather-dependent; travel insurance and flexible schedules are essential.
  • Respect restricted military or ecological zones - permissions may be required for landing on some islands.

Best Time to Visit Tyatya #

Best accessed in the brief Kuril summer; outside that window seas and weather make landings difficult.

Summer
July-September · 5-15°C
Calmer seas and milder weather make sea access to Kuril islands more feasible.
Late spring
May-June · 0-10°C
Snowmelt and volatility in weather; some landings possible but unpredictable.

Weather & Climate near Tyatya #

Climate

Tyatya's climate is classified as Tundra - Tundra climate with cool summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -16°C to 14°C. Abundant rainfall (1351 mm/year), wettest in September.

Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
24°
Warmest Month
-16°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -10°C and lows of -15°C. Moderate rainfall (70 mm), mostly overcast skies, and breezy conditions.

25 Poor

Comfort

-13°
Feels Like Freezing
-13°C
Temperature
-15° -10°
81%
Humidity
Very Humid

Weather

70 mm
Rainfall
9.9 m/s
Wind
Breezy
0.1
UV Index
Low
9.1h daylight

February

February is the coldest month with highs of -11°C and lows of -16°C. Moderate rainfall (58 mm), mostly overcast skies, and breezy conditions.

27 Poor

Comfort

-13°
Feels Like Freezing
-13°C
Temperature
-16° -11°
83%
Humidity
Very Humid

Weather

58 mm
Rainfall
9.0 m/s
Wind
Breezy
0.2
UV Index
Low
10.3h daylight

March

March is freezing with highs of -8°C and lows of -14°C. Regular rainfall (87 mm), mostly overcast skies, and breezy conditions.

27 Poor

Comfort

-11°
Feels Like Freezing
-11°C
Temperature
-14° -8°
86%
Humidity
Very Humid

Weather

87 mm
Rainfall
7.8 m/s
Wind
Breezy
0.5
UV Index
Low
11.8h daylight

April

April is freezing with highs of -3°C and lows of -7°C. Significant rainfall (101 mm), mostly overcast skies, and breezy conditions.

27 Poor

Comfort

-5°
Feels Like Freezing
-5°C
Temperature
-7° -3°
88%
Humidity
Very Humid

Weather

101 mm
Rainfall
7.5 m/s
Wind
Breezy
0.8
UV Index
Moderate
13.3h daylight

May

May is freezing with highs of 2°C and lows of -3°C. Significant rainfall (124 mm), mostly overcast skies, and breezy conditions.

28 Poor

Comfort

Feels Like Freezing
C
Temperature
-3°
92%
Humidity
Very Humid

Weather

124 mm
Rainfall
6.6 m/s
Wind
Breezy
1.1
UV Index
High
14.6h daylight

June

June is cold with highs of 8°C and lows of 1°C. Significant rainfall (102 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
93%
Humidity
Very Humid

Weather

102 mm
Rainfall
5.4 m/s
Wind
Light Breeze
1.3
UV Index
High
15.3h daylight

July

July is cold with highs of 12°C and lows of 6°C. Significant rainfall (121 mm) and mostly overcast skies.

48 Poor

Comfort

Feels Like Cold
C
Temperature
12°
93%
Humidity
Very Humid

Weather

121 mm
Rainfall
4.7 m/s
Wind
Light Breeze
1.4
UV Index
High
15.0h daylight

August

August is cool with highs of 14°C and lows of 8°C. Significant rainfall (153 mm) and mostly overcast skies.

46 Poor

Comfort

11°
Feels Like Cool
11°C
Temperature
14°
91%
Humidity
Very Humid

Weather

153 mm
Rainfall
5.1 m/s
Wind
Light Breeze
1.2
UV Index
High
13.8h daylight

September

September is cold with highs of 10°C and lows of 5°C. The wettest month with heavy rain (180 mm) and mostly overcast skies.

46 Poor

Comfort

Feels Like Cold
C
Temperature
10°
85%
Humidity
Very Humid

Weather

180 mm
Rainfall
5.9 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
12.4h daylight

October

October is cold with highs of 5°C and lows of 0°C. Significant rainfall (157 mm), mostly overcast skies, and breezy conditions.

34 Poor

Comfort

Feels Like Cold
C
Temperature
80%
Humidity
Very Humid

Weather

157 mm
Rainfall
7.8 m/s
Wind
Breezy
0.5
UV Index
Low
10.8h daylight

November

November is freezing with highs of -1°C and lows of -6°C. Significant rainfall (119 mm), mostly overcast skies, and breezy conditions.

27 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-6° -1°
79%
Humidity
Very Humid

Weather

119 mm
Rainfall
8.6 m/s
Wind
Breezy
0.2
UV Index
Low
9.5h daylight

December

December is freezing with highs of -6°C and lows of -11°C. Moderate rainfall (79 mm), mostly overcast skies, and breezy conditions.

23 Poor

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-11° -7°
79%
Humidity
Very Humid

Weather

79 mm
Rainfall
9.5 m/s
Wind
Breezy
0.1
UV Index
Low
8.7h daylight

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