Bolshoy Semyachik

Volcano Active volcanic complex on Kamchatka Peninsula

Bolshoy Semyachik is a volcanic complex on the Kamchatka Peninsula in Russia. It comprises multiple volcanic cones and summit features and is known for geothermal activity.

The massif includes craters and fumarolic areas and is of interest for volcanology and for visitors studying volcanic landscapes. Terrain around the complex is rugged and access is typically by expedition or specialist guide.

The volcanic complex formed through multiple eruptions and cones built up over time; it is part of Kamchatka’s extensive volcanic zone. Some parts show continued geothermal and fumarolic activity.

Bolshoy Semyachik lies within Kamchatka Krai in far eastern Russia on the Kamchatka Peninsula, an area characterised by dense volcanic concentration and significant seismic and geothermal phenomena.

  • Volcanic nature: Recognised as a volcanic complex with multiple cones and geothermal activity rather than a single simple peak, so approaches and conditions can be rugged.
Bolshoy Semyachik
54.3156, 160.0241

How to Get to Bolshoy Semyachik #

Most trips to Kamchatka start in Petropavlovsk-Kamchatsky; access to volcanic fields typically requires river valleys, helicopter shuttles or multi-day overland routes. Hire experienced local operators for safety and logistics.

Tips for Visiting Bolshoy Semyachik #

  • Bolshoy Semyachik is a volcanic feature in Kamchatka-coordinate with local guides who understand volcanic terrain and seismic activity.
  • Travel in Kamchatka is remote and expensive; book local operators in Petropavlovsk-Kamchatsky and plan for weather contingencies.

Best Time to Visit Bolshoy Semyachik #

Volcanic landscapes of Kamchatka are best visited in the short summer season with experienced local support.

Summer (July-September)
Jul-Sep · 2-15°C (36-59°F)
Best window for trekking and accessing volcanic areas though weather remains highly changeable.

Weather & Climate near Bolshoy Semyachik #

Climate

Bolshoy Semyachik's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -17°C to 12°C. Abundant rainfall (1068 mm/year), wettest in October.

Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
26°
Warmest Month
-36°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -9°C and lows of -17°C. Regular rainfall (85 mm), mostly overcast skies, and breezy conditions.

27 Poor

Comfort

-13°
Feels Like Freezing
-13°C
Temperature
-17° -9°
98%
Humidity
Very Humid

Weather

85 mm
Rainfall
7.1 m/s
Wind
Breezy
0.0
UV Index
Low
7.7h daylight

February

February is the coldest month with highs of -10°C and lows of -17°C. Moderate rainfall (78 mm), mostly overcast skies, and breezy conditions.

25 Poor

Comfort

-14°
Feels Like Freezing
-14°C
Temperature
-17° -10°
95%
Humidity
Very Humid

Weather

78 mm
Rainfall
6.5 m/s
Wind
Breezy
0.1
UV Index
Low
9.5h daylight

March

March is freezing with highs of -9°C and lows of -17°C. Moderate rainfall (78 mm) and mostly overcast skies.

29 Poor

Comfort

-13°
Feels Like Freezing
-13°C
Temperature
-17° -9°
93%
Humidity
Very Humid

Weather

78 mm
Rainfall
5.8 m/s
Wind
Light Breeze
0.3
UV Index
Low
11.7h daylight

April

April is freezing with highs of -5°C and lows of -12°C. Moderate rainfall (76 mm) and mostly overcast skies.

29 Poor

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-12° -5°
91%
Humidity
Very Humid

Weather

76 mm
Rainfall
4.7 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
13.9h daylight

May

May is freezing with highs of 0°C and lows of -6°C. Moderate rainfall (69 mm) and mostly overcast skies.

35 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-6°
91%
Humidity
Very Humid

Weather

69 mm
Rainfall
4.0 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
15.8h daylight

June

June is cold with highs of 6°C and lows of -1°C. Moderate rainfall (77 mm) and mostly overcast skies.

42 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
87%
Humidity
Very Humid

Weather

77 mm
Rainfall
3.6 m/s
Wind
Light Breeze
1.2
UV Index
High
16.9h daylight

July

July is cold with highs of 12°C and lows of 4°C. Regular rainfall (97 mm) and mostly overcast skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
12°
86%
Humidity
Very Humid

Weather

97 mm
Rainfall
3.2 m/s
Wind
Light Breeze
1.3
UV Index
High
16.4h daylight

August

August is cold with highs of 12°C and lows of 4°C. Significant rainfall (111 mm) and mostly overcast skies.

50 Acceptable

Comfort

Feels Like Cold
C
Temperature
12°
87%
Humidity
Very Humid

Weather

111 mm
Rainfall
3.5 m/s
Wind
Light Breeze
1.0
UV Index
Moderate
14.7h daylight

September

September is cold with highs of 8°C and lows of 0°C. Regular rainfall (99 mm) and partly cloudy skies.

46 Poor

Comfort

Feels Like Cold
C
Temperature
87%
Humidity
Very Humid

Weather

99 mm
Rainfall
4.1 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
12.5h daylight

October

October is freezing with highs of 1°C and lows of -6°C. The wettest month with heavy rain (116 mm) and partly cloudy skies.

35 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-6°
90%
Humidity
Very Humid

Weather

116 mm
Rainfall
4.9 m/s
Wind
Light Breeze
0.2
UV Index
Low
10.3h daylight

November

November is freezing with highs of -6°C and lows of -14°C. Regular rainfall (95 mm) and mostly overcast skies.

29 Poor

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-14° -6°
96%
Humidity
Very Humid

Weather

95 mm
Rainfall
5.5 m/s
Wind
Light Breeze
0.0
UV Index
Low
8.3h daylight

December

December is freezing with highs of -9°C and lows of -16°C. Regular rainfall (87 mm), mostly overcast skies, and breezy conditions.

27 Poor

Comfort

-13°
Feels Like Freezing
-13°C
Temperature
-16° -9°
98%
Humidity
Very Humid

Weather

87 mm
Rainfall
6.5 m/s
Wind
Breezy
0.0
UV Index
Low
7.1h daylight

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