Ben Oss

Mountain Munro straddling Arrochar Alps and Breadalbane

Linked with neighboring Ben Lui on the southern Highland border, Ben Oss draws walkers for classic ridge routes, corries and proximity to Loch Lomond & The Trossachs National Park.

Main image
Ben Oss
56.3893, -4.7757

How to Get to Ben Oss #

Accessible from the A82 area near Tyndrum or regional glen roads; common routes are described in local Scottish hill guides.

Tips for Visiting Ben Oss #

  • Ben Oss is often climbed with Ben Lui - consider linking the two for a full day of Highland walking.
  • Start early to allow for time on the ridge and to avoid afternoon weather changes.
  • Route choices from the east or west offer different vistas; ask locally for recommended lines after heavy rain.

Best Time to Visit Ben Oss #

Summer provides the most reliable conditions; linking peaks is popular in fair weather.

Summer
Jun-Aug · 6-16°C
Best walking conditions and longer daylight hours.
Autumn
Sep-Oct · 3-12°C
Crisp days and quieter paths but increasingly unpredictable weather.

Weather & Climate near Ben Oss #

Climate

Ben Oss's climate is classified as Subpolar Oceanic - Subpolar Oceanic climate with cool summers (peaking in July) and cold winters (coldest in February). Temperatures range from -2°C to 13°C. Heavy rainfall (2968 mm/year), wettest in January.

Best Time to Visit
MayJuneJuly
Temperature & Rainfall
Temperature Range
25°
Warmest Month
-12°
Coldest Month
Monthly Conditions

January

January is cold with highs of 2°C and lows of -2°C. The wettest month with heavy rain (373 mm), mostly overcast skies, and windy conditions.

18 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
96%
Humidity
Very Humid

Weather

373 mm
Rainfall
12.9 m/s
Wind
Windy
0.0
UV Index
Low
7.4h daylight

February

February is the coolest month with highs of 2°C and lows of -2°C. Heavy rain (244 mm), mostly overcast skies, and windy conditions.

18 Poor

Comfort

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

Weather

244 mm
Rainfall
12.5 m/s
Wind
Windy
0.1
UV Index
Low
9.3h daylight

March

March is cold with highs of 3°C and lows of -2°C. Heavy rain (280 mm), mostly overcast skies, and windy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
92%
Humidity
Very Humid

Weather

280 mm
Rainfall
11.4 m/s
Wind
Windy
0.3
UV Index
Low
11.7h daylight

April

April is cold with highs of 6°C and lows of 0°C. Significant rainfall (165 mm), mostly overcast skies, and breezy conditions.

32 Poor

Comfort

Feels Like Cold
C
Temperature
89%
Humidity
Very Humid

Weather

165 mm
Rainfall
9.4 m/s
Wind
Breezy
0.6
UV Index
Moderate
14.0h daylight

May

May is cold with highs of 9°C and lows of 2°C. Significant rainfall (151 mm), mostly overcast skies, and breezy conditions.

44 Poor

Comfort

Feels Like Cold
C
Temperature
86%
Humidity
Very Humid

Weather

151 mm
Rainfall
8.4 m/s
Wind
Breezy
0.9
UV Index
Moderate
16.2h daylight

June

June is cold with highs of 12°C and lows of 5°C. Significant rainfall (146 mm), mostly overcast skies, and breezy conditions.

44 Poor

Comfort

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

Weather

146 mm
Rainfall
8.2 m/s
Wind
Breezy
1.1
UV Index
High
17.3h daylight

July

July is cool with highs of 13°C and lows of 7°C. Significant rainfall (162 mm), mostly overcast skies, and breezy conditions.

44 Poor

Comfort

10°
Feels Like Cool
10°C
Temperature
13°
87%
Humidity
Very Humid

Weather

162 mm
Rainfall
7.8 m/s
Wind
Breezy
1.0
UV Index
High
16.8h daylight

August

August is cool with highs of 13°C and lows of 7°C. Significant rainfall (194 mm), mostly overcast skies, and breezy conditions.

44 Poor

Comfort

10°
Feels Like Cool
10°C
Temperature
13°
89%
Humidity
Very Humid

Weather

194 mm
Rainfall
8.0 m/s
Wind
Breezy
0.8
UV Index
Moderate
14.9h daylight

September

September is cold with highs of 10°C and lows of 5°C. Heavy rain (270 mm), mostly overcast skies, and breezy conditions.

38 Poor

Comfort

Feels Like Cold
C
Temperature
10°
91%
Humidity
Very Humid

Weather

270 mm
Rainfall
9.3 m/s
Wind
Breezy
0.5
UV Index
Low
12.6h daylight

October

October is cold with highs of 7°C and lows of 3°C. Heavy rain (320 mm), mostly overcast skies, and windy conditions.

30 Poor

Comfort

Feels Like Cold
C
Temperature
93%
Humidity
Very Humid

Weather

320 mm
Rainfall
10.8 m/s
Wind
Windy
0.2
UV Index
Low
10.2h daylight

November

November is cold with highs of 4°C and lows of 0°C. Heavy rain (325 mm), mostly overcast skies, and windy conditions.

26 Poor

Comfort

Feels Like Cold
C
Temperature
95%
Humidity
Very Humid

Weather

325 mm
Rainfall
12.1 m/s
Wind
Windy
0.0
UV Index
Low
8.0h daylight

December

December is cold with highs of 2°C and lows of -2°C. Heavy rain (338 mm), mostly overcast skies, and windy conditions.

20 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
96%
Humidity
Very Humid

Weather

338 mm
Rainfall
11.5 m/s
Wind
Windy
0.0
UV Index
Low
6.7h daylight

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