Lake Onega

Lake Large Russian lake with islands and Orthodox monasteries

Lake Onega in Russia’s Karelia is Europe’s second-largest lake with islands such as Kizhi; visitors take boat trips to wooden churches, fish, and explore remote lakeside villages and boreal forests.

Main image

Lake Onega is a large freshwater lake in northwestern Russia and one of Europe’s largest lakes, covering roughly 9,700 square kilometres. It contains numerous islands and long forested shorelines.

The lake’s islands include Kizhi, known for its wooden architecture and the UNESCO-listed Kizhi Pogost, and the lakeshore is lined with villages and ferry routes. Boat cruises and fishing are common visitor activities along the lake’s extensive shoreline.

Lake Onega has long been an important inland waterway in the region and supported medieval trade routes and later Russian settlement and industry around towns such as Petrozavodsk. Traditional wooden architecture and island settlements reflect the area’s cultural history.

The lake lies in the Republic of Karelia in northwestern Russia, northeast of St. Petersburg, with Petrozavodsk on its western shore acting as the principal regional city.

  • Kizhi Pogost: Kizhi Island's wooden church complex is a UNESCO World Heritage site and a major cultural focus on the lake.
  • Size: Lake Onega is one of Europe's largest lakes, with a surface area of roughly 9,700 square kilometres.

What to See #

  • Kizhi Island: An island in the lake famous for the Kizhi Pogost, a collection of 18th-century wooden churches and bell tower listed by UNESCO.
  • Petrozavodsk: The regional administrative centre on the lake's western shore serving as the main gateway for tourists and ferries.
Lake Onega
Lake Onega (Onego), Republic of Karelia / surrounding oblasts, Russia - no single address
61.6906, 35.6556

How to Get to Lake Onega #

The usual access point for Lake Onega is the city of Petrozavodsk on the lake’s western shore. Petrozavodsk is served by overnight and daytime trains from Moscow and St. Petersburg and by scheduled flights to Petrozavodsk Airport; the city’s harbor has passenger services onto the lake.

From Petrozavodsk’s riverfront/harbour you can catch hydrofoils and motor boats to islands and sites on Lake Onega (for example services to Kizhi Island). Local travel on the lake is by scheduled boat/hydrofoil in the summer season.

Tips for Visiting Lake Onega #

  • Use Petrozavodsk as your primary gateway-most passenger boats and hydrofoils to islands (including Kizhi) depart from Petrozavodsk's piers during the navigation season (roughly June-August).
  • Book scheduled boat or hydrofoil trips in advance and check timetables carefully-services are seasonal and can be limited; arriving without a reserved seat often means waiting for the next crossing.
  • Plan island-hopping or shoreline cruises early in the day to enjoy calmer waters and quieter bays; many travelers only visit the famous open-air museums and miss the smaller monasteries, promontories and sheltered inlets around the lake.

Best Time to Visit Lake Onega #

Visit in summer (June-August) for the warmest, ice-free conditions and best access to boating and shoreline sights.

Summer (best time for boating and sightseeing)
June-August · ~10-20°C
Long daylight and the warmest, ice-free conditions for boating, fishing and lakeside activities.
Winter (frozen, limited access)
November-March · often below 0°C
Lake frequently freezes and conditions are cold; travel and activities are winter-specific and weather-dependent.

Weather & Climate near Lake Onega #

Climate

Lake Onega's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in February). Temperatures range from -13°C to 21°C. Moderate rainfall (627 mm/year).

Best Time to Visit
JulyJuneAugust
Temperature & Rainfall
Temperature Range
32°
Warmest Month
-48°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -6°C and lows of -13°C. Moderate rainfall (40 mm) and mostly overcast skies.

32 Poor

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-13° -6°
97%
Humidity
Very Humid

Weather

40 mm
Rainfall
2.8 m/s
Wind
Calm
0.0
UV Index
Low
6.1h daylight

February

February is the coldest month with highs of -6°C and lows of -13°C. Moderate rainfall (30 mm) and mostly overcast skies.

35 Poor

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-13° -6°
96%
Humidity
Very Humid

Weather

30 mm
Rainfall
3.0 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.7h daylight

March

March is freezing with highs of 0°C and lows of -8°C. Moderate rainfall (32 mm) and partly cloudy skies.

42 Poor

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-9°
93%
Humidity
Very Humid

Weather

32 mm
Rainfall
2.5 m/s
Wind
Calm
0.2
UV Index
Low
11.6h daylight

April

April is cold with highs of 6°C and lows of -3°C. Moderate rainfall (33 mm) and mostly overcast skies.

48 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
84%
Humidity
Very Humid

Weather

33 mm
Rainfall
3.1 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
14.5h daylight

May

May is cold with highs of 12°C and lows of 2°C. Moderate rainfall (39 mm) and partly cloudy skies.

62 Good

Comfort

Feels Like Cold
C
Temperature
12°
75%
Humidity
Very Humid

Weather

39 mm
Rainfall
3.1 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
17.2h daylight

June

June is cool with highs of 18°C and lows of 7°C. Moderate rainfall (58 mm) and mostly overcast skies.

65 Good

Comfort

13°
Feels Like Cool
13°C
Temperature
18°
72%
Humidity
Very Humid

Weather

58 mm
Rainfall
2.6 m/s
Wind
Calm
1.2
UV Index
High
18.9h daylight

July

July is cool with highs of 21°C and lows of 11°C. Moderate rainfall (66 mm) and partly cloudy skies.

69 Good

Comfort

16°
Feels Like Cool
16°C
Temperature
11° 21°
75%
Humidity
Very Humid

Weather

66 mm
Rainfall
2.5 m/s
Wind
Calm
1.2
UV Index
High
18.1h daylight

August

August is cool with highs of 19°C and lows of 10°C. The wettest month with 79 mm of rain and partly cloudy skies.

65 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
10° 19°
78%
Humidity
Very Humid

Weather

79 mm
Rainfall
2.7 m/s
Wind
Calm
0.8
UV Index
Moderate
15.6h daylight

September

September is cold with highs of 13°C and lows of 6°C. Moderate rainfall (65 mm) and mostly overcast skies.

55 Acceptable

Comfort

10°
Feels Like Cold
10°C
Temperature
13°
84%
Humidity
Very Humid

Weather

65 mm
Rainfall
2.9 m/s
Wind
Calm
0.4
UV Index
Low
12.7h daylight

October

October is cold with highs of 7°C and lows of 2°C. Moderate rainfall (71 mm) and mostly overcast skies.

42 Poor

Comfort

Feels Like Cold
C
Temperature
91%
Humidity
Very Humid

Weather

71 mm
Rainfall
3.4 m/s
Wind
Light Breeze
0.1
UV Index
Low
9.8h daylight

November

November is freezing with highs of 2°C and lows of -4°C. Moderate rainfall (60 mm) and mostly overcast skies.

33 Poor

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-4°
96%
Humidity
Very Humid

Weather

60 mm
Rainfall
3.5 m/s
Wind
Light Breeze
0.0
UV Index
Low
6.9h daylight

December

December is freezing with highs of -3°C and lows of -9°C. Moderate rainfall (54 mm) and mostly overcast skies.

35 Poor

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-9° -3°
96%
Humidity
Very Humid

Weather

54 mm
Rainfall
3.0 m/s
Wind
Light Breeze
0.0
UV Index
Low
5.1h daylight

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