What’s On · 11-17 September 2026
What’s On in West Wales This Week: 11-17 September 2026
Nine verified listings - three in each county - bring together coastal sport, heritage, theatre, rural life, craft and night photography.
Here are selected events taking place across Pembrokeshire, Carmarthenshire and Ceredigion from Friday 11 to Thursday 17 September.
Every date, location and event detail has been checked against current organiser, venue or official tourism information. Programmes change, so follow the organiser link beneath each listing before travelling.
Pembrokeshire
Pembrokeshire
Wales Festival of Seaweed
Friday 11 to Sunday 13 September · St Davids City Council Hall and locations around St Davids
Talks, workshops, crafts and interactive experiences explore the culinary, environmental, health and economic value of seaweed to coastal communities in Wales.
IRONMAN Wales
Sunday 13 September · Tenby and the Pembrokeshire course
Tenby hosts one of Wales’s biggest endurance events as athletes tackle the sea swim, coastal cycle course and marathon run, supported by crowds throughout the town and surrounding communities.
Behind the Scenes Tour at Picton Castle
Tuesday 15 September, 11am · Picton Castle & Gardens, near Haverfordwest
Explore areas normally closed to visitors, including the former nursery wing, attics and historic bedrooms, while learning about the charity’s conservation and restoration work. The organiser advises that the tour is not suitable for children under 12 or visitors unable to manage stairs and uneven floors.
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Carmarthenshire
Carmarthenshire
William Shakespeare’s Richard III
Friday 11 and Saturday 12 September, 7pm · Stiwdio Stepni, Ffwrnes, Llanelli
Boom Productions presents Shakespeare’s historical thriller at Ffwrnes, following Richard, Duke of Gloucester, as peace gives way to ambition and political intrigue. The venue advises that the production may not be suitable for children under 10.
Llandyfaelog Agricultural Show
Saturday 12 September, 8am-5pm · United Counties Showground, Carmarthen
A full day of agricultural competition and rural displays organised by Llandyfaelog Show at the United Counties Showground.
Summer Basket Floristry Workshop
Thursday 17 September, 10am-1pm · Aberglasney Gardens, Llangathen
Local florist Nia of Pinc leads a relaxed practical session creating a seasonal flower basket, with materials provided and the finished arrangement taken home at the end.
Ceredigion
Ceredigion
Craft Festival Wales
Friday 11 to Sunday 13 September · Cardigan Castle
Around 100 professional makers gather at Cardigan Castle for ceramics, glass, textiles, jewellery, wood, print and other contemporary craft, alongside demonstrations, workshops, talks and family activities.
Night Photography: The Milky Way Galaxy
Friday 11 and Saturday 12 September, 9pm-midnight · Strata Florida, Ystrad Fflur
An intermediate two-night course with photographer Dafydd Wyn Morgan focuses on techniques for capturing the Milky Way and the autumn night sky at historic Strata Florida.
Open Doors at Llanerchaeron
Saturday 12 and Sunday 13 September, 10am-4pm · Llanerchaeron, near Aberaeron
The Georgian villa, traditional farmyard and walled garden open for a special heritage weekend, with historical re-enactment on the front lawn featuring archers, knights and weapon demonstrations.
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