Lough Dan

Lake Glacial lake in Wicklow Mountains, scenic valley

Glacial lake in the Wicklow Mountains, reached by narrow upland roads. Popular with hillwalkers and campers, it sits amid steep ridges and moorland suggesting classic Irish mountain walking.

Main image

Lough Dan is an upland lake in the Wicklow Mountains of County Wicklow, Ireland, set within a valley of heather moorland and upland forestry. It lies within a scenic mountain catchment and is valued for walking, short hikes and informal water activities.

The lake is visited by walkers following valley paths and by canoeists and anglers where permitted; its shoreline and surrounding slopes form part of wider hillwalking routes in the Wicklow range. Facilities are limited and visits are typically day trips from nearby towns.

The lake occupies a glacially formed valley typical of Wicklow’s upland topography and is framed by ridges and upland slopes. Over time the area has remained largely rural with private estates and public access routes crossing the surrounding land.

Geographically it sits in the western part of the Wicklow Mountains in County Wicklow, Ireland, with local access from minor roads and trails that connect to nearby settlements and mountain walking routes.

  • Recreation and access: Accessible by local roads and walking routes, the lake is commonly used for day hikes and light water recreation within the Wicklow Mountains.
Lough Dan
Lough Dan, Wicklow Mountains, County Wicklow, Ireland
53.0678, -6.2819

How to Get to Lough Dan #

Access by road from the R759 (Sally Gap) or local approaches from nearby towns such as Roundwood; park at marked carparks and follow signposted walking trails into the Lough Dan valley.

Tips for Visiting Lough Dan #

  • Many visitors come to Lough Dan as part of the Wicklow Way or lake-circuit walks - use local trailheads and allow a few hours for the area.
  • Park at the nearby Carpark on R759 (Sally Gap approach) and follow signposted paths into the valley.
  • Early mornings offer good chance of seeing deer and mist over the water; midges may appear in calm weather.

Best Time to Visit Lough Dan #

Visit late spring through early autumn for comfortable walking conditions and clearer weather in the Wicklow Mountains.

Late spring-autumn
May-September · 10-20°C
Best weather and daylight for hiking and photography; paths are most accessible.

Weather & Climate near Lough Dan #

Climate

Lough Dan's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in July) and cold winters (coldest in January). Temperatures range from 2°C to 18°C. Abundant rainfall (1025 mm/year), wettest in December, distributed fairly evenly throughout the year.

Best Time to Visit
JuneJulySeptember
Temperature & Rainfall
Temperature Range
24°
Warmest Month
-4°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 7°C and lows of 2°C. Significant rainfall (106 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
92%
Humidity
Very Humid

Weather

106 mm
Rainfall
5.6 m/s
Wind
Light Breeze
0.0
UV Index
Low
7.9h daylight

February

February is cold with highs of 7°C and lows of 2°C. Regular rainfall (81 mm) and mostly overcast skies.

42 Poor

Comfort

Feels Like Cold
C
Temperature
91%
Humidity
Very Humid

Weather

81 mm
Rainfall
5.4 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.6h daylight

March

March is cold with highs of 9°C and lows of 2°C. Moderate rainfall (77 mm) and mostly overcast skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
89%
Humidity
Very Humid

Weather

77 mm
Rainfall
5.4 m/s
Wind
Light Breeze
0.4
UV Index
Low
11.7h daylight

April

April is cold with highs of 11°C and lows of 3°C. Moderate rainfall (69 mm) and mostly overcast skies.

54 Acceptable

Comfort

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

Weather

69 mm
Rainfall
4.7 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
13.8h daylight

May

May is cold with highs of 14°C and lows of 6°C. Moderate rainfall (72 mm) and mostly overcast skies.

54 Acceptable

Comfort

10°
Feels Like Cold
10°C
Temperature
14°
85%
Humidity
Very Humid

Weather

72 mm
Rainfall
4.5 m/s
Wind
Light Breeze
1.2
UV Index
High
15.7h daylight

June

June is cool with highs of 16°C and lows of 8°C. Moderate rainfall (67 mm) and mostly overcast skies.

64 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
16°
85%
Humidity
Very Humid

Weather

67 mm
Rainfall
4.1 m/s
Wind
Light Breeze
1.5
UV Index
High
16.7h daylight

July

July is cool with highs of 18°C and lows of 10°C. Moderate rainfall (66 mm) and mostly overcast skies.

62 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 18°
86%
Humidity
Very Humid

Weather

66 mm
Rainfall
4.0 m/s
Wind
Light Breeze
1.3
UV Index
High
16.2h daylight

August

August is cool with highs of 18°C and lows of 10°C. Regular rainfall (85 mm) and mostly overcast skies.

60 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
10° 18°
87%
Humidity
Very Humid

Weather

85 mm
Rainfall
3.9 m/s
Wind
Light Breeze
1.1
UV Index
High
14.6h daylight

September

September is cool with highs of 16°C and lows of 9°C. Regular rainfall (90 mm) and mostly overcast skies.

62 Good

Comfort

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

Weather

90 mm
Rainfall
4.4 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
12.5h daylight

October

October is cold with highs of 13°C and lows of 6°C. Significant rainfall (105 mm) and mostly overcast skies.

50 Acceptable

Comfort

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

Weather

105 mm
Rainfall
4.8 m/s
Wind
Light Breeze
0.3
UV Index
Low
10.4h daylight

November

November is cold with highs of 9°C and lows of 3°C. Regular rainfall (98 mm) and mostly overcast skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
91%
Humidity
Very Humid

Weather

98 mm
Rainfall
5.0 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.4h daylight

December

December is cold with highs of 8°C and lows of 2°C. The wettest month with heavy rain (109 mm) and mostly overcast skies.

42 Poor

Comfort

Feels Like Cold
C
Temperature
92%
Humidity
Very Humid

Weather

109 mm
Rainfall
5.3 m/s
Wind
Light Breeze
0.0
UV Index
Low
7.3h daylight

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