Norsjø

Lake Norwegian lake popular for boating and fishing

Norsjø lake in Telemark forms part of the Telemark waterway network. Visitors use its boating routes, fishing spots and cycling paths that link lakeside villages.

Main image
Norsjø
Norsjø Lake, Telemark (Vestfold og Telemark), Norway
59.3000, 9.3333
No admission fee for shoreline access; private boating and recreational activities may charge locally

How to Get to Norsjø #

Norsjø is accessible by regional roads; the nearest larger towns include Skien and Notodden. Driving from Oslo takes around 2-3 hours depending on exact start and route.

Tips for Visiting Norsjø #

  • If boating, hire a local with knowledge of the lake's islands and shallow areas - maps can be imprecise.
  • Combine lake time with a drive along County Road 46 (Rjukanfjord area) to see fjord‑inland scenery transitions.
  • Check seasonal ice reports in winter - the lake can freeze but conditions vary year to year.

Best Time to Visit Norsjø #

Summer months are best for water activities; autumn offers quieter scenery and good light for photography.

Summer
June-August · 10-22°C (50-72°F)
Pleasant for boating, swimming and lakeside picnics.
Autumn
September-October · 5-15°C (41-59°F)
Clearer skies and fewer tourists; lake shores take on autumnal color.

Weather & Climate near Norsjø #

Climate

Norsjø's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -4°C to 22°C. Moderate rainfall (808 mm/year).

Best Time to Visit
MayJuneJuly
Temperature & Rainfall
Temperature Range
29°
Warmest Month
-26°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of 0°C and lows of -4°C. Moderate rainfall (59 mm) and mostly overcast skies.

34 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-4°
98%
Humidity
Very Humid

Weather

59 mm
Rainfall
1.7 m/s
Wind
Calm
0.0
UV Index
Low
6.7h daylight

February

February is freezing with highs of 1°C and lows of -4°C. Moderate rainfall (38 mm) and mostly overcast skies.

38 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-5°
97%
Humidity
Very Humid

Weather

38 mm
Rainfall
1.8 m/s
Wind
Calm
0.1
UV Index
Low
9.0h daylight

March

March is cold with highs of 5°C and lows of -2°C. Moderate rainfall (50 mm) and mostly overcast skies.

45 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
94%
Humidity
Very Humid

Weather

50 mm
Rainfall
2.0 m/s
Wind
Calm
0.3
UV Index
Low
11.6h daylight

April

April is cold with highs of 10°C and lows of 2°C. Moderate rainfall (40 mm) and mostly overcast skies.

57 Acceptable

Comfort

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

Weather

40 mm
Rainfall
2.2 m/s
Wind
Calm
0.7
UV Index
Moderate
14.3h daylight

May

May is cool with highs of 16°C and lows of 7°C. Moderate rainfall (54 mm) and mostly overcast skies.

65 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
16°
79%
Humidity
Very Humid

Weather

54 mm
Rainfall
2.4 m/s
Wind
Calm
1.0
UV Index
High
16.8h daylight

June

June is cool with highs of 20°C and lows of 11°C. Moderate rainfall (67 mm) and mostly overcast skies.

65 Good

Comfort

16°
Feels Like Cool
16°C
Temperature
11° 20°
78%
Humidity
Very Humid

Weather

67 mm
Rainfall
2.4 m/s
Wind
Calm
1.4
UV Index
High
18.2h daylight

July

July is cool with highs of 22°C and lows of 13°C. Moderate rainfall (72 mm) and mostly overcast skies.

65 Good

Comfort

18°
Feels Like Cool
18°C
Temperature
13° 22°
81%
Humidity
Very Humid

Weather

72 mm
Rainfall
2.1 m/s
Wind
Calm
1.3
UV Index
High
17.5h daylight

August

August is cool with highs of 21°C and lows of 12°C. Regular rainfall (83 mm) and mostly overcast skies.

63 Good

Comfort

17°
Feels Like Cool
17°C
Temperature
12° 21°
84%
Humidity
Very Humid

Weather

83 mm
Rainfall
2.0 m/s
Wind
Calm
0.9
UV Index
Moderate
15.3h daylight

September

September is cool with highs of 16°C and lows of 8°C. Regular rainfall (94 mm) and mostly overcast skies.

61 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
16°
88%
Humidity
Very Humid

Weather

94 mm
Rainfall
2.0 m/s
Wind
Calm
0.5
UV Index
Low
12.6h daylight

October

October is cold with highs of 10°C and lows of 4°C. The wettest month with heavy rain (102 mm) and mostly overcast skies.

49 Poor

Comfort

Feels Like Cold
C
Temperature
10°
93%
Humidity
Very Humid

Weather

102 mm
Rainfall
1.8 m/s
Wind
Calm
0.1
UV Index
Low
10.0h daylight

November

November is cold with highs of 4°C and lows of 0°C. Regular rainfall (93 mm) and mostly overcast skies.

41 Poor

Comfort

Feels Like Cold
C
Temperature
96%
Humidity
Very Humid

Weather

93 mm
Rainfall
1.6 m/s
Wind
Calm
0.0
UV Index
Low
7.4h daylight

December

December is freezing with highs of 1°C and lows of -3°C. Moderate rainfall (56 mm) and mostly overcast skies.

36 Poor

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-3°
97%
Humidity
Very Humid

Weather

56 mm
Rainfall
1.6 m/s
Wind
Calm
0.0
UV Index
Low
5.9h daylight

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