Carn Mairg

Mountain Scottish Highland mountain in the Breadalbane range

A rounded peak in the southern Highlands, Carn Mairg attracts hillwalkers who use its ridges to link multiple summits; expect rough paths, peat hags and broad Highland views on clear days.

Main image
Carn Mairg
56.6345, -4.1463

How to Get to Carn Mairg #

Access is usually from Glen Lyon or car parks along minor roads off the A85 and A827 in Perthshire. Public transport options are limited; visitors generally arrive by car.

Tips for Visiting Carn Mairg #

  • Carn Mairg makes for a fine circuit combining other nearby Munros-consider the Beinn Ghlas-Carn Mairg ridge for better return routes.
  • Start early to avoid boggy sections that develop later in the day during wet seasons.

Best Time to Visit Carn Mairg #

Best hiked in summer or late spring/early autumn for reliable conditions; winter ascents require winter mountaineering skills.

Summer
Jun-Aug · 6-15°C
Long daylight and relatively stable weather-best for ridge walks.
Late Spring/Early Autumn
May, Sep · 2-12°C
Fewer walkers and clearer air; expect some boggy ground after rain.

Weather & Climate near Carn Mairg #

Climate

Carn Mairg's climate is classified as Subarctic - Subarctic climate with cold summers (peaking in July) and freezing winters (coldest in February). Temperatures range from -3°C to 13°C. Heavy rainfall (2496 mm/year), wettest in January.

Best Time to Visit
MayJulyJune
Temperature & Rainfall
Temperature Range
26°
Warmest Month
-12°
Coldest Month
Monthly Conditions

January

January is freezing with highs of 2°C and lows of -2°C. The wettest month with heavy rain (318 mm), mostly overcast skies, and windy conditions.

20 Poor

Comfort

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

Weather

318 mm
Rainfall
11.4 m/s
Wind
Windy
0.0
UV Index
Low
7.4h daylight

February

February is the coldest month with highs of 2°C and lows of -3°C. Heavy rain (209 mm), mostly overcast skies, and windy conditions.

19 Poor

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-3°
95%
Humidity
Very Humid

Weather

209 mm
Rainfall
11.0 m/s
Wind
Windy
0.1
UV Index
Low
9.3h daylight

March

March is cold with highs of 2°C and lows of -2°C. Heavy rain (237 mm), mostly overcast skies, and windy conditions.

20 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
93%
Humidity
Very Humid

Weather

237 mm
Rainfall
10.3 m/s
Wind
Windy
0.3
UV Index
Low
11.7h daylight

April

April is cold with highs of 5°C and lows of -1°C. Significant rainfall (140 mm), mostly overcast skies, and breezy conditions.

36 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
89%
Humidity
Very Humid

Weather

140 mm
Rainfall
8.7 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 (135 mm), mostly overcast skies, and breezy conditions.

46 Poor

Comfort

Feels Like Cold
C
Temperature
87%
Humidity
Very Humid

Weather

135 mm
Rainfall
7.7 m/s
Wind
Breezy
0.9
UV Index
Moderate
16.2h daylight

June

June is cold with highs of 11°C and lows of 4°C. Significant rainfall (126 mm), mostly overcast skies, and breezy conditions.

44 Poor

Comfort

Feels Like Cold
C
Temperature
11°
87%
Humidity
Very Humid

Weather

126 mm
Rainfall
7.6 m/s
Wind
Breezy
1.1
UV Index
High
17.3h daylight

July

July is cold with highs of 13°C and lows of 6°C. Significant rainfall (134 mm), mostly overcast skies, and breezy conditions.

46 Poor

Comfort

10°
Feels Like Cold
10°C
Temperature
13°
88%
Humidity
Very Humid

Weather

134 mm
Rainfall
7.2 m/s
Wind
Breezy
1.0
UV Index
High
16.8h daylight

August

August is cold with highs of 12°C and lows of 6°C. Significant rainfall (159 mm), mostly overcast skies, and breezy conditions.

42 Poor

Comfort

10°
Feels Like Cold
10°C
Temperature
13°
90%
Humidity
Very Humid

Weather

159 mm
Rainfall
7.3 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 (222 mm), mostly overcast skies, and breezy conditions.

40 Poor

Comfort

Feels Like Cold
C
Temperature
10°
92%
Humidity
Very Humid

Weather

222 mm
Rainfall
8.5 m/s
Wind
Breezy
0.5
UV Index
Low
12.6h daylight

October

October is cold with highs of 6°C and lows of 2°C. Heavy rain (270 mm), mostly overcast skies, and breezy conditions.

28 Poor

Comfort

Feels Like Cold
C
Temperature
94%
Humidity
Very Humid

Weather

270 mm
Rainfall
9.8 m/s
Wind
Breezy
0.2
UV Index
Low
10.2h daylight

November

November is cold with highs of 4°C and lows of -1°C. Heavy rain (268 mm), mostly overcast skies, and windy conditions.

28 Poor

Comfort

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

Weather

268 mm
Rainfall
10.7 m/s
Wind
Windy
0.0
UV Index
Low
8.0h daylight

December

December is freezing with highs of 2°C and lows of -2°C. Heavy rain (278 mm), mostly overcast skies, and windy conditions.

20 Poor

Comfort

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

Weather

278 mm
Rainfall
10.1 m/s
Wind
Windy
0.0
UV Index
Low
6.7h daylight

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