Castell y Bere

Castle Ruined 13th-century castle set in remote countryside

Set above a Welsh valley, Castell y Bere presents rugged castle ruins, walking routes and mountain views; visitors combine the site with Snowdonia hikes and local history.

Main image

Castell y Bere is a ruined 13th-century stone castle in Gwynedd, north Wales, built in the early 1200s as a princely stronghold of Llywelyn the Great. It is one of the best-preserved examples of a Welsh princely fortress from that period.

The site contains substantial curtain wall fragments, an inner ward and the remains of towers that sit above the Dysynni Valley, offering wide rural views. The surviving masonry and defensive layout make it possible to read the castle’s plan on foot and to inspect the gate and inner enclosures.

Construction was undertaken by Llywelyn ap Iorwerth (Llywelyn the Great) in the early 13th century as part of the principality’s network of fortifications. It served as a military and administrative centre until it was captured by English forces during the campaigns of Edward I in 1283 and subsequently fell into decline.

The castle stands above the Dysynni Valley near the village of Llanfihangel-y-Pennant, in a remote area of Gwynedd surrounded by upland farmland and moor. The nearest larger towns are Dolgellau and Dolgellau-area centres to the west and northwest.

  • Access: A short, steep footpath leads from the small car park down into the castle site, so sturdy shoes are useful.
Castell y Bere
52.6583, -3.9711

Best Time to Visit Castell y Bere #

Weather & Climate near Castell y Bere #

Climate

Castell y Bere's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in February). Temperatures range from 2°C to 19°C. Abundant rainfall (1171 mm/year), wettest in November.

Air Quality: AQI 27 Good
Best Time to Visit
JulyJuneAugust
Temperature & Rainfall
Temperature Range
28°
Warmest Month
-8°
Coldest Month
Monthly Conditions

January

January is cold with highs of 7°C and lows of 2°C. Significant rainfall (114 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
95%
Humidity
Very Humid

Weather

114 mm
Rainfall
5.4 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.1h daylight

February

February is the coolest month with highs of 7°C and lows of 2°C. Regular rainfall (84 mm) and mostly overcast skies.

42 Poor

Comfort

Feels Like Cold
C
Temperature
94%
Humidity
Very Humid

Weather

84 mm
Rainfall
5.3 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.7h daylight

March

March 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
0.4
UV Index
Low
11.7h daylight

April

April is cold with highs of 11°C and lows of 4°C. Moderate rainfall (70 mm) and mostly overcast skies.

54 Acceptable

Comfort

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

Weather

70 mm
Rainfall
4.3 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
13.8h daylight

May

May is cool with highs of 15°C and lows of 6°C. Moderate rainfall (65 mm) and mostly overcast skies.

56 Acceptable

Comfort

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

Weather

65 mm
Rainfall
4.4 m/s
Wind
Light Breeze
1.2
UV Index
High
15.5h daylight

June

June is cool with highs of 17°C and lows of 9°C. Moderate rainfall (78 mm) and mostly overcast skies.

62 Good

Comfort

13°
Feels Like Cool
13°C
Temperature
17°
85%
Humidity
Very Humid

Weather

78 mm
Rainfall
4.0 m/s
Wind
Light Breeze
1.4
UV Index
High
16.5h daylight

July

July is cool with highs of 19°C and lows of 11°C. Moderate rainfall (79 mm) and mostly overcast skies.

64 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
11° 19°
85%
Humidity
Very Humid

Weather

79 mm
Rainfall
4.0 m/s
Wind
Light Breeze
1.4
UV Index
High
16.0h daylight

August

August is cool with highs of 19°C and lows of 11°C. Regular rainfall (97 mm) and mostly overcast skies.

62 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
11° 19°
87%
Humidity
Very Humid

Weather

97 mm
Rainfall
3.9 m/s
Wind
Light Breeze
1.1
UV Index
High
14.5h daylight

September

September is cool with highs of 16°C and lows of 9°C. Significant rainfall (102 mm) and mostly overcast skies.

60 Good

Comfort

13°
Feels Like Cool
13°C
Temperature
17°
89%
Humidity
Very Humid

Weather

102 mm
Rainfall
4.1 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
12.5h daylight

October

October is cool with highs of 14°C and lows of 7°C. Significant rainfall (124 mm) and mostly overcast skies.

52 Acceptable

Comfort

10°
Feels Like Cool
10°C
Temperature
14°
92%
Humidity
Very Humid

Weather

124 mm
Rainfall
4.9 m/s
Wind
Light Breeze
0.3
UV Index
Low
10.4h daylight

November

November is cold with highs of 10°C and lows of 4°C. The wettest month with heavy rain (133 mm) and mostly overcast skies.

48 Poor

Comfort

Feels Like Cold
C
Temperature
10°
94%
Humidity
Very Humid

Weather

133 mm
Rainfall
4.7 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.6h daylight

December

December is cold with highs of 8°C and lows of 3°C. Significant rainfall (127 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
95%
Humidity
Very Humid

Weather

127 mm
Rainfall
5.1 m/s
Wind
Light Breeze
0.0
UV Index
Low
7.5h daylight

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