Kisimul Castle

Castle Medieval castle standing on a rocky islet, Barra

On a rock in Castlebay, Barra, Kisimul Castle dates to the medieval era and served Clan MacNeil; visitors come by boat for guided tours, coastal views and a close look at island fortifications.

Main image

Kisimul Castle is a medieval fortress built on a rocky islet in the bay at Castlebay on the Isle of Barra in the Outer Hebrides, Scotland. It served as the historic stronghold and seat of the Clan MacNeil.

The castle occupies a single rocky islet and is reached by a short boat trip from Castlebay; the surrounding sea provides natural defense. Its stone curtain walls and central keep are the principal visible features and are compact in scale.

Historically the site was the clan seat for the MacNeils and was maintained as a fortified residence through the late medieval and early modern periods. The castle has been conserved and is treated as an important local historic monument.

Geographically the islet sits immediately offshore from Castlebay on the south coast of Barra in the Outer Hebrides; the nearest town is Castlebay and the wider island landscape is coastal moor and machair.

  • Access: Short boat transfer from Castlebay is required to reach the islet; landing depends on tides and weather so check local boat operators.
  • Viewing: Best photographic views are from the shore at Castlebay and from small boats circling the islet, especially in calm weather.
Kisimul Castle
Kisimul Castle, Castlebay, Isle of Barra, Outer Hebrides, Scotland, UK
56.9520, -7.4870

How to Get to Kisimul Castle #

Kisimul Castle sits on a tidal islet off Castlebay on the Isle of Barra (Outer Hebrides). Regular scheduled Caledonian MacBrayne ferries operate seasonally to Castlebay from the Scottish mainland/island network, and Loganair operates scheduled flights into Barra Airport from Glasgow; Barra Airport is a short taxi ride (roughly 3 miles / ~5 km) into Castlebay. From the Castlebay slipway it is a very short boat transfer (a few minutes) to the castle; the slipway is a short walk from the village and harbor.

Tips for Visiting Kisimul Castle #

  • Take the short visitor boats that operate from Castlebay on Barra - book the first boat of the day in summer to avoid rough seas and mid‑day crowds.
  • Check seasonal opening times and weather before you travel: access is boat‑dependent and services are reduced in poor weather or outside the main tourist season.
  • Most visitors focus on exterior views; spend the short visit time exploring the castle interior and parapet for restored medieval features and wide views over the surrounding isles.

Best Time to Visit Kisimul Castle #

Late spring through summer (May-August) is the best time for reliable boat access and visiting in milder weather.

Summer (best access)
June-August · 10-16 °C
Calmer seas and warmer weather make boat trips to the castle most reliable and visitor facilities open.
Shoulder seasons (quieter)
May, September · 6-12 °C
Fewer visitors and pleasant days possible, though weather can change quickly; ferry services may be less frequent.
Winter (limited access)
October-April · 0-8 °C
Rough seas and reduced visitor services; many tours and facilities are seasonal and may be closed.

Weather & Climate near Kisimul Castle #

Climate

Kisimul Castle's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in August) and cold winters (coldest in February). Temperatures range from 3°C to 16°C. Abundant rainfall (1347 mm/year), wettest in October.

Air Quality: AQI 20 Good
Best Time to Visit
JulyAugustApril
Temperature & Rainfall
Temperature Range
19°
Warmest Month
Coldest Month
Monthly Conditions

January

January is cold with highs of 8°C and lows of 3°C. Significant rainfall (147 mm), mostly overcast skies, and breezy conditions.

34 Poor

Comfort

Feels Like Cold
C
Temperature
81%
Humidity
Very Humid

Weather

147 mm
Rainfall
9.1 m/s
Wind
Breezy
0.0
UV Index
Low
7.4h daylight

February

February is the coolest month with highs of 8°C and lows of 3°C. Significant rainfall (107 mm), mostly overcast skies, and breezy conditions.

36 Poor

Comfort

Feels Like Cold
C
Temperature
81%
Humidity
Very Humid

Weather

107 mm
Rainfall
9.1 m/s
Wind
Breezy
0.1
UV Index
Low
9.3h daylight

March

March is cold with highs of 8°C and lows of 3°C. Significant rainfall (115 mm), mostly overcast skies, and breezy conditions.

38 Poor

Comfort

Feels Like Cold
C
Temperature
82%
Humidity
Very Humid

Weather

115 mm
Rainfall
8.4 m/s
Wind
Breezy
0.3
UV Index
Low
11.7h daylight

April

April is cold with highs of 10°C and lows of 4°C. Moderate rainfall (73 mm), mostly overcast skies, and breezy conditions.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
10°
83%
Humidity
Very Humid

Weather

73 mm
Rainfall
7.2 m/s
Wind
Breezy
0.7
UV Index
Moderate
14.0h daylight

May

May is cold with highs of 12°C and lows of 6°C. Moderate rainfall (62 mm), mostly overcast skies, and breezy conditions.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
12°
84%
Humidity
Very Humid

Weather

62 mm
Rainfall
6.3 m/s
Wind
Breezy
1.0
UV Index
High
16.2h daylight

June

June is cool with highs of 14°C and lows of 9°C. Moderate rainfall (70 mm), mostly overcast skies, and breezy conditions.

52 Acceptable

Comfort

11°
Feels Like Cool
11°C
Temperature
14°
87%
Humidity
Very Humid

Weather

70 mm
Rainfall
6.3 m/s
Wind
Breezy
1.3
UV Index
High
17.3h daylight

July

July is cool with highs of 16°C and lows of 11°C. Regular rainfall (87 mm) and mostly overcast skies.

60 Good

Comfort

13°
Feels Like Cool
13°C
Temperature
11° 16°
87%
Humidity
Very Humid

Weather

87 mm
Rainfall
5.9 m/s
Wind
Light Breeze
1.2
UV Index
High
16.8h daylight

August

August is cool with highs of 16°C and lows of 11°C. Significant rainfall (104 mm) and mostly overcast skies.

58 Acceptable

Comfort

13°
Feels Like Cool
13°C
Temperature
11° 16°
86%
Humidity
Very Humid

Weather

104 mm
Rainfall
5.8 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
14.9h daylight

September

September is cool with highs of 14°C and lows of 10°C. Significant rainfall (131 mm), mostly overcast skies, and breezy conditions.

46 Poor

Comfort

12°
Feels Like Cool
12°C
Temperature
10° 14°
85%
Humidity
Very Humid

Weather

131 mm
Rainfall
6.9 m/s
Wind
Breezy
0.5
UV Index
Moderate
12.6h daylight

October

October is cool with highs of 12°C and lows of 8°C. The wettest month with heavy rain (156 mm), mostly overcast skies, and breezy conditions.

44 Poor

Comfort

10°
Feels Like Cool
10°C
Temperature
12°
83%
Humidity
Very Humid

Weather

156 mm
Rainfall
7.8 m/s
Wind
Breezy
0.2
UV Index
Low
10.2h daylight

November

November is cold with highs of 10°C and lows of 5°C. Significant rainfall (150 mm), mostly overcast skies, and breezy conditions.

42 Poor

Comfort

Feels Like Cold
C
Temperature
10°
81%
Humidity
Very Humid

Weather

150 mm
Rainfall
8.3 m/s
Wind
Breezy
0.0
UV Index
Low
8.0h daylight

December

December is cold with highs of 8°C and lows of 4°C. Significant rainfall (145 mm), mostly overcast skies, and breezy conditions.

36 Poor

Comfort

Feels Like Cold
C
Temperature
81%
Humidity
Very Humid

Weather

145 mm
Rainfall
8.3 m/s
Wind
Breezy
0.0
UV Index
Low
6.7h daylight

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