Lough Leane

Lake Largest Killarney lake in County Kerry

At the heart of Killarney, Lough Leane offers boat trips to Ross Island, fishing and lakeside walks inside Killarney National Park, with easy access to Muckross House and nearby waterfalls.

Main image

Lough Leane is the largest of the three Lakes of Killarney located in County Kerry, Ireland. It lies within Killarney National Park and sits immediately west of the town of Killarney.

The lake is visited for its scenic boat trips and shoreline sights, notably the island monastic site of Innisfallen and lakeside historic structures such as Ross Castle. The island contains ruins of a monastery commonly dated to the early medieval period (around the 7th century).

The monastic ruins on Innisfallen date to the early medieval era and the lake has long been integral to local transport and settlement patterns in the Killarney area. Over subsequent centuries the shoreline has developed with houses, castles and parkland that form today’s visitor routes.

Situated directly beside Killarney town in southwest County Kerry, the lake is a central feature of the Killarney lake system and provides access to walking trails, boat services and points of interest across the national park.

  • Largest Killarney lake: The largest of the three Lakes of Killarney and forms part of Killarney National Park, adjacent to the town of Killarney in County Kerry.
  • Innisfallen Abbey: Innisfallen Island contains early medieval monastic ruins traditionally dated to the 7th century.

What to See #

  • Innisfallen Island: Contains the monastic island with medieval ruins commonly known as Innisfallen Abbey, founded in the early medieval period and dated to about the 7th century.
  • Ross Castle: A tower house and lakeside stronghold on the eastern shore, historically associated with the local Gaelic lords and visible from boat and shore paths.
Lough Leane
52.0333, -9.5500

How to Get to Lough Leane #

Lough Leane is directly adjacent to Killarney town in County Kerry. Most visitors arrive by car on the N22 or by train/bus to Killarney and then walk or cycle into the national park; boat tours and lake excursions operate from piers near Ross Castle.

Tips for Visiting Lough Leane #

  • Take a boat tour from Killarney to see Ross Castle and the lakes' islands up close.
  • Combine a lake trip with a jaunting car ride through Killarney National Park for a fuller sense of the landscape.
  • Arrive early to avoid coach groups that arrive mid‑morning and early afternoon.

Best Time to Visit Lough Leane #

Summer provides the most visitor services and boat trips; shoulder seasons reduce crowding while maintaining good weather.

Summer
June-August · 12-20°C (54-68°F)
Best touring weather and the busiest time for boat trips and park activities.
Spring/Autumn
April-May and September-October · 8-16°C (46-61°F)
Quieter and excellent for walking and cycling with cooler temperatures.

Weather & Climate near Lough Leane #

Climate

Lough Leane's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in August) and cold winters (coldest in January). Temperatures range from 4°C to 18°C. Abundant rainfall (1414 mm/year), wettest in December.

Best Time to Visit
JulyJuneAugust
Temperature & Rainfall
Temperature Range
26°
Warmest Month
-7°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 9°C and lows of 4°C. Significant rainfall (174 mm) and mostly overcast skies.

38 Poor

Comfort

Feels Like Cold
C
Temperature
93%
Humidity
Very Humid

Weather

174 mm
Rainfall
5.0 m/s
Wind
Light Breeze
0.0
UV Index
Low
8.1h daylight

February

February is cold with highs of 9°C and lows of 4°C. Significant rainfall (125 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
92%
Humidity
Very Humid

Weather

125 mm
Rainfall
5.0 m/s
Wind
Light Breeze
0.1
UV Index
Low
9.7h daylight

March

March is cold with highs of 10°C and lows of 5°C. Significant rainfall (127 mm) and mostly overcast skies.

48 Poor

Comfort

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

Weather

127 mm
Rainfall
4.9 m/s
Wind
Light Breeze
0.4
UV Index
Low
11.7h daylight

April

April is cold with highs of 12°C and lows of 6°C. Moderate rainfall (77 mm) and mostly overcast skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
12°
87%
Humidity
Very Humid

Weather

77 mm
Rainfall
4.2 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
13.8h daylight

May

May is cool with highs of 15°C and lows of 8°C. Regular rainfall (86 mm) and mostly overcast skies.

54 Acceptable

Comfort

11°
Feels Like Cool
11°C
Temperature
15°
85%
Humidity
Very Humid

Weather

86 mm
Rainfall
4.2 m/s
Wind
Light Breeze
1.1
UV Index
High
15.5h daylight

June

June is cool with highs of 17°C and lows of 10°C. Moderate rainfall (76 mm) and mostly overcast skies.

62 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
10° 17°
84%
Humidity
Very Humid

Weather

76 mm
Rainfall
3.9 m/s
Wind
Light Breeze
1.3
UV Index
High
16.5h daylight

July

July is cool with highs of 18°C and lows of 12°C. Moderate rainfall (69 mm) and mostly overcast skies.

64 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
12° 18°
86%
Humidity
Very Humid

Weather

69 mm
Rainfall
3.8 m/s
Wind
Light Breeze
1.2
UV Index
High
16.0h daylight

August

August is cool with highs of 18°C and lows of 12°C. Regular rainfall (90 mm) and mostly overcast skies.

62 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
12° 18°
87%
Humidity
Very Humid

Weather

90 mm
Rainfall
3.7 m/s
Wind
Light Breeze
1.0
UV Index
Moderate
14.5h daylight

September

September is cool with highs of 16°C and lows of 11°C. Significant rainfall (107 mm) and mostly overcast skies.

60 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 17°
88%
Humidity
Very Humid

Weather

107 mm
Rainfall
4.0 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
12.5h daylight

October

October is cool with highs of 14°C and lows of 9°C. Significant rainfall (147 mm) and mostly overcast skies.

50 Acceptable

Comfort

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

Weather

147 mm
Rainfall
4.4 m/s
Wind
Light Breeze
0.3
UV Index
Low
10.4h daylight

November

November is cold with highs of 11°C and lows of 6°C. Significant rainfall (159 mm) and mostly overcast skies.

46 Poor

Comfort

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

Weather

159 mm
Rainfall
4.5 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.6h daylight

December

December is cold with highs of 9°C and lows of 5°C. The wettest month with heavy rain (177 mm) and mostly overcast skies.

46 Poor

Comfort

Feels Like Cold
C
Temperature
93%
Humidity
Very Humid

Weather

177 mm
Rainfall
4.9 m/s
Wind
Light Breeze
0.0
UV Index
Low
7.5h daylight

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