Kidwelly Castle

Castle Medieval Welsh castle with well-preserved stone fortifications

A medieval Norman castle on the River Gwendraeth, Kidwelly Castle offers towers, curtain walls and guided interpretation; visitors explore battlements and riverside walks.

Main image

Kidwelly Castle is a medieval stone castle located in the town of Kidwelly in Carmarthenshire, Wales. The site dates back to the Norman period with major rebuilding and enlargement in the 13th century.

The castle contains extensive surviving curtain walls, towers and a prominent twin-towered gatehouse that visitors can approach and view closely. Walks around the battlements and gatehouse provide views over the adjacent tidal marshes and the town of Kidwelly.

Founded by Norman lords in the later 12th century, the castle was substantially rebuilt and fortified through the 13th century to form the stone stronghold seen today. It served as a regional defensive and administrative centre during the medieval period and retains fabric from successive phases of construction.

The castle stands on the edge of the town of Kidwelly in south Wales, beside tidal waters of the local river and marshes in Carmarthenshire. It is accessible from the town centre and nearby road links.

  • Visitor information: Managed and interpreted as a historic monument by the Welsh heritage authorities, with on-site visitor information and regular opening times in the tourist season.
  • Best views: The castle sits beside tidal water and marshland, making the gatehouse a strong vantage point for views over the estuary and surrounding lowlands.

What to See #

  • Gatehouse: A twin-towered stone gatehouse dating largely from the 13th century that provides the principal defended entrance and offers elevated views over the surrounding town and estuary.
  • Curtain walls and towers: Curtain walls and towers forming a concentric defensive circuit around the inner ward, many fabric surviving from medieval rebuilding campaigns.
  • Inner keep and baileys: Inner keep and baileys where the castle's main domestic and defensive spaces were concentrated; these ruins show successive phases of Norman and later medieval masonry.
Kidwelly Castle
Kidwelly SA17 4RR, Wales, United Kingdom
51.7394, -4.3057
Daily 10:00am-5:00pm (seasonal variations possible)

How to Get to Kidwelly Castle #

Kidwelly Castle is in Kidwelly, Carmarthenshire. It is reachable by car via the A484 and A477; the nearest train station is Kidwelly railway station, a short walk from the castle. Local bus services connect with nearby towns.

Tips for Visiting Kidwelly Castle #

  • Take the self-guided audio tour available at the visitor center to learn the castle's layered history while walking the curtain walls.
  • Visit at late afternoon for warm light on the stone and to see the castle's south gate, where grooves worn by cart wheels are still visible.
  • Check event listings - the castle hosts medieval reenactments and summer concerts that highlight its atmospheric interior spaces.

Best Time to Visit Kidwelly Castle #

Best in summer for full visitor services and events; spring and autumn offer fewer crowds and good light for photography.

Summer (June-August)
June-August · 12-20°C (54-68°F)
Longer daylight and open exhibitions; best for guided tours and events.
Spring (April-May)
April-May · 8-15°C (46-59°F)
Quieter than summer with pleasant weather for exploring ramparts and gatehouses.
Autumn (September-October)
September-October · 8-16°C (46-61°F)
Fewer tourists and dramatic skies that emphasize the castle's silhouette.

Weather & Climate near Kidwelly Castle #

Climate

Kidwelly Castle's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in February). Temperatures range from 3°C to 20°C. Abundant rainfall (1032 mm/year), wettest in November.

Air Quality: AQI 33 Good
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
25°
Warmest Month
-3°
Coldest Month
Monthly Conditions

January

January is cold with highs of 8°C and lows of 3°C. Significant rainfall (107 mm), mostly overcast skies, and breezy conditions.

38 Poor

Comfort

Feels Like Cold
C
Temperature
88%
Humidity
Very Humid

Weather

107 mm
Rainfall
6.4 m/s
Wind
Breezy
0.1
UV Index
Low
8.2h daylight

February

February is the coolest month with highs of 8°C and lows of 3°C. Moderate rainfall (76 mm), mostly overcast skies, and breezy conditions.

42 Poor

Comfort

Feels Like Cold
C
Temperature
87%
Humidity
Very Humid

Weather

76 mm
Rainfall
6.2 m/s
Wind
Breezy
0.2
UV Index
Low
9.8h daylight

March

March is cold with highs of 10°C and lows of 4°C. Regular rainfall (80 mm) and mostly overcast skies.

52 Acceptable

Comfort

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

Weather

80 mm
Rainfall
5.9 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 5°C. Moderate rainfall (61 mm) and partly cloudy skies.

58 Acceptable

Comfort

Feels Like Cold
C
Temperature
12°
85%
Humidity
Very Humid

Weather

61 mm
Rainfall
5.2 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
13.7h daylight

May

May is cool with highs of 15°C and lows of 8°C. Moderate rainfall (58 mm) and partly cloudy skies.

62 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
15°
84%
Humidity
Very Humid

Weather

58 mm
Rainfall
5.0 m/s
Wind
Light Breeze
1.3
UV Index
High
15.4h daylight

June

June is cool with highs of 18°C and lows of 11°C. Moderate rainfall (68 mm) and partly cloudy skies.

68 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 18°
85%
Humidity
Very Humid

Weather

68 mm
Rainfall
4.6 m/s
Wind
Light Breeze
1.5
UV Index
Very High
16.3h daylight

July

July is cool with highs of 20°C and lows of 13°C. Moderate rainfall (66 mm) and mostly overcast skies.

66 Good

Comfort

16°
Feels Like Cool
16°C
Temperature
13° 20°
85%
Humidity
Very Humid

Weather

66 mm
Rainfall
4.6 m/s
Wind
Light Breeze
1.5
UV Index
High
15.9h daylight

August

August is cool with highs of 20°C and lows of 13°C. Regular rainfall (84 mm) and mostly overcast skies.

64 Good

Comfort

16°
Feels Like Cool
16°C
Temperature
13° 20°
85%
Humidity
Very Humid

Weather

84 mm
Rainfall
4.6 m/s
Wind
Light Breeze
1.1
UV Index
High
14.4h daylight

September

September is cool with highs of 17°C and lows of 11°C. Regular rainfall (89 mm) and mostly overcast skies.

62 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 17°
85%
Humidity
Very Humid

Weather

89 mm
Rainfall
5.1 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
12.5h daylight

October

October is cool with highs of 14°C and lows of 9°C. Significant rainfall (111 mm) and mostly overcast skies.

52 Acceptable

Comfort

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

Weather

111 mm
Rainfall
5.8 m/s
Wind
Light Breeze
0.3
UV Index
Low
10.5h daylight

November

November is cold with highs of 11°C and lows of 6°C. The wettest month with heavy rain (120 mm) and mostly overcast skies.

48 Poor

Comfort

Feels Like Cold
C
Temperature
11°
86%
Humidity
Very Humid

Weather

120 mm
Rainfall
5.9 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.7h daylight

December

December is cold with highs of 9°C and lows of 4°C. Significant rainfall (112 mm), mostly overcast skies, and breezy conditions.

46 Poor

Comfort

Feels Like Cold
C
Temperature
87%
Humidity
Very Humid

Weather

112 mm
Rainfall
6.1 m/s
Wind
Breezy
0.0
UV Index
Low
7.7h daylight

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