Loch Katrine

Lake Scenic loch supplying Glasgow's water, popular for cruises

Highland loch in the Trossachs where a Victorian steamship still operates; visitors take boat trips, cycle the shoreline and walk forest paths used historically for Glasgow’s water supply.

Main image

Loch Katrine is a freshwater loch in the Trossachs area of central Scotland that has been an important water supply reservoir for the city of Glasgow since the 19th century. The loch lies within a wooded and mountainous landscape and is a focal point for recreational boating and walking.

The loch was incorporated into Glasgow’s Victorian aqueduct system, which was completed in the 1850s and 1860s, and it continues to function as part of the regional water supply infrastructure. Pleasure cruises operate on the loch and visitors use trails and viewpoints along the shoreline.

The loch sits in the Trossachs area within the Stirling council area in central Scotland, surrounded by hills and forest, and is accessible from nearby towns and visitor centres in the region.

  • Glasgow water supply: Since the mid-19th century the loch has served as a source of potable water for Glasgow through an aqueduct scheme completed in 1859.
  • Steamboat excursions: A historic steam excursion vessel operates on the loch and is a popular way for visitors to see the water and surrounding Trossachs scenery.
Loch Katrine
Loch Katrine, Trossachs region, Scotland - near the village of Tighnabruaich and the town of Callander
56.2500, -4.5167
Always open (outdoor loch); boat services seasonal
Free to visit (boat-ferry for steamship has fee)

How to Get to Loch Katrine #

Drive from Glasgow (about 1-1.5 hours) via the A82 and A84 to the Trossachs; the loch’s main visitor pier is near Trossachs Pier. Trains to Callander followed by local bus/taxi are options.

Tips for Visiting Loch Katrine #

  • Take the historic steamship if running (seasonal) for an old-world perspective on the loch.
  • For the classic Loch Katrine experience, walk part of the 19th-century perimeter path built to supply Glasgow with water - the Victorian engineering is part of the story.
  • Arrive early in high season to avoid coach-group crowds at the pier.

Best Time to Visit Loch Katrine #

Summer for boats and walks; autumn for color and quieter paths.

Summer (June-August)
Jun-Aug · 10°C to 18°C (50°F-64°F)
Best for boat trips and walking the loch's elegant Victorian paths.
Autumn (September-October)
Sep-Oct · 6°C to 14°C (43°F-57°F)
Fewer visitors and brilliant foliage; mist over the loch can be atmospheric.

Weather & Climate near Loch Katrine #

Climate

Loch Katrine's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in July) and cold winters (coldest in January). Temperatures range from 0°C to 17°C. Abundant rainfall (1788 mm/year), wettest in January.

Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
27°
Warmest Month
-8°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 5°C and lows of 0°C. The wettest month with heavy rain (224 mm) and mostly overcast skies.

32 Poor

Comfort

Feels Like Cold
C
Temperature
95%
Humidity
Very Humid

Weather

224 mm
Rainfall
4.8 m/s
Wind
Light Breeze
0.0
UV Index
Low
7.4h daylight

February

February is cold with highs of 6°C and lows of 0°C. Significant rainfall (146 mm) and mostly overcast skies.

36 Poor

Comfort

Feels Like Cold
C
Temperature
94%
Humidity
Very Humid

Weather

146 mm
Rainfall
4.7 m/s
Wind
Light Breeze
0.1
UV Index
Low
9.3h daylight

March

March is cold with highs of 7°C and lows of 1°C. Significant rainfall (150 mm) and mostly overcast skies.

34 Poor

Comfort

Feels Like Cold
C
Temperature
91%
Humidity
Very Humid

Weather

150 mm
Rainfall
4.6 m/s
Wind
Light Breeze
0.3
UV Index
Low
11.7h daylight

April

April is cold with highs of 10°C and lows of 3°C. Regular rainfall (89 mm) and mostly overcast skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
10°
87%
Humidity
Very Humid

Weather

89 mm
Rainfall
4.0 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
14.0h daylight

May

May is cold with highs of 13°C and lows of 5°C. Significant rainfall (101 mm) and mostly overcast skies.

50 Acceptable

Comfort

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

Weather

101 mm
Rainfall
3.8 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
16.2h daylight

June

June is cool with highs of 15°C and lows of 8°C. Regular rainfall (89 mm) and mostly overcast skies.

60 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
15°
85%
Humidity
Very Humid

Weather

89 mm
Rainfall
3.7 m/s
Wind
Light Breeze
1.1
UV Index
High
17.3h daylight

July

July is cool with highs of 17°C and lows of 10°C. Significant rainfall (101 mm) and mostly overcast skies.

58 Acceptable

Comfort

13°
Feels Like Cool
13°C
Temperature
10° 17°
86%
Humidity
Very Humid

Weather

101 mm
Rainfall
3.5 m/s
Wind
Light Breeze
1.0
UV Index
High
16.8h daylight

August

August is cool with highs of 17°C and lows of 10°C. Significant rainfall (125 mm) and mostly overcast skies.

56 Acceptable

Comfort

13°
Feels Like Cool
13°C
Temperature
10° 17°
88%
Humidity
Very Humid

Weather

125 mm
Rainfall
3.3 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
14.9h daylight

September

September is cool with highs of 14°C and lows of 8°C. Significant rainfall (170 mm) and mostly overcast skies.

46 Poor

Comfort

11°
Feels Like Cool
11°C
Temperature
14°
90%
Humidity
Very Humid

Weather

170 mm
Rainfall
3.8 m/s
Wind
Light Breeze
0.5
UV Index
Low
12.6h daylight

October

October is cold with highs of 11°C and lows of 6°C. Heavy rain (202 mm) and mostly overcast skies.

42 Poor

Comfort

Feels Like Cold
C
Temperature
11°
92%
Humidity
Very Humid

Weather

202 mm
Rainfall
4.0 m/s
Wind
Light Breeze
0.2
UV Index
Low
10.2h daylight

November

November is cold with highs of 8°C and lows of 3°C. Significant rainfall (196 mm) and mostly overcast skies.

36 Poor

Comfort

Feels Like Cold
C
Temperature
94%
Humidity
Very Humid

Weather

196 mm
Rainfall
4.2 m/s
Wind
Light Breeze
0.0
UV Index
Low
8.0h daylight

December

December is cold with highs of 6°C and lows of 1°C. Significant rainfall (195 mm) and mostly overcast skies.

34 Poor

Comfort

Feels Like Cold
C
Temperature
95%
Humidity
Very Humid

Weather

195 mm
Rainfall
4.3 m/s
Wind
Light Breeze
0.0
UV Index
Low
6.7h daylight

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