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NASA CC BY-SA 4.0 Wikimedia Commons

Zavaritski Caldera

Volcano

A volcanic caldera on a Russian island in Sakhalin Oblast; Zavaritski attracts volcanologists and adventurous travellers for boat or charter access, rugged terrain and geological study.

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In this guide

Zavaritski Caldera essentials

Country: Russia
Driest months: Jan-Mar
Pay in: Ruble (р.)
Language: Russian
Emergency: 102

Zavaritski Caldera at a Glance

Things to Do
When to Go

Best Time to Visit Zavaritski Caldera

Summer is the only practical season for access; otherwise seas and weather make travel hazardous.

Summer
Jun-Aug · 5-15°C
Best conditions for boat approaches and any permitted landings.

Weather & Climate near Zavaritski Caldera

Climate

Zavaritski Caldera's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -8°C to 13°C. Abundant rainfall (1578 mm/year), wettest in October.

Air Quality: AQI 31 Good
Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
16°
Warmest Month
-11°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -8° - -3° -15° 89 mm overcast 79% 10.9 m/s 0.1 low 8.9h
February Poor -8° - -4° -15° 86 mm overcast 81% 10.8 m/s 0.2 low 10.2h
March Poor -7° - -3° -14° 93 mm overcast 81% 9.6 m/s 0.4 low 11.8h
April Poor -4° - 1° -9° 120 mm overcast 87% 8.5 m/s 0.7 moderate 13.4h
May Poor -2° - 5° -4° 135 mm overcast 94% 6.7 m/s 1.0 high 14.8h
June Poor 0° - 7° 0° 86 mm overcast 96% 5.3 m/s 1.2 high 15.6h
July Poor 3° - 11° 4° 105 mm overcast 96% 4.8 m/s 1.3 high 15.2h
August Poor 5° - 13° 6° 145 mm overcast 95% 5.1 m/s 1.1 high 14.0h
September Poor 5° - 12° 5° 201 mm overcast 92% 6.0 m/s 0.8 moderate 12.4h
October Poor 2° - 8° 1° 226 mm overcast 85% 7.6 m/s 0.4 low 10.7h
November Poor -2° - 3° -6° 165 mm overcast 81% 8.6 m/s 0.1 low 9.3h
December Poor -5° - -1° -11° 127 mm overcast 79% 10.1 m/s 0.1 low 8.5h
Getting There & Around

How to Get to Zavaritski Caldera

Access to the Kuril islands is challenging and often requires coordination with Russian authorities. Travel is typically by chartered vessel from Sakhalin; plan for permits, limited services, and weather-related delays.

Tips for Visiting Zavaritski Caldera

  • If visiting the Kuril chain, allow flexible schedule-weather and border controls can disrupt itineraries.
  • Respect restricted military areas; many parts of the Kurils require permits.
  • Bring warm, layered clothing even in summer-the maritime climate is cool and wind-prone.