Join us for an unforgettable adventure through Wales as we present the 2027 Four Castles Half Marathon Series. This exclusive series features four stunning half marathons set against the backdrop of some of Wales' most picturesque landscapes. The journey begins with The Snowdonia Half Marathon on May 9, 2027, where runners will explore the rugged beauty of North Wales’ mountainous terrain. Next up is The Bangor Half Marathon on June 13, offering a scenic route through historic coastal towns and rolling hills. In September, the series continues with The Caernarfon Half Marathon on the 12th, showcasing breathtaking views along the Menai Strait and past ancient castles. Finally, rounding out the year is The Conwy Half Marathon on November 14, where runners will navigate through charming villages and along the picturesque River Conwy. Each race in this series offers not only a challenging course but also an incredible sense of community as participants lace up their shoes alongside fellow enthusiasts. Upon crossing each finish line, you'll receive a unique bespoke medal commemorating your achievement at that particular event, plus a technical T-shirt to wear with pride. Completing all four races earns runners the ultimate prize: a magnificent golden series medal celebrating this remarkable accomplishment. It's important to note that while discount codes can be applied individually for each race entry, they cannot be used towards the full series registration due to the significant cost of producing these exclusive awards. To ensure an engaging and fair challenge, participants must maintain a pace of under 15 minutes per mile throughout their run; otherwise, runners will face elimination after completing three miles. This time limit adds excitement and strategic planning to your training regimen. For detailed race day information such as start times, location specifics, and other vital details, please refer to the individual event pages for each half marathon in this series. Don't miss out on an experience that combines stunning scenery with a rewarding challenge – register now before spots fill up!
Races Offered
4 Castles Series 2027
May 09, 2027
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Distance —
4 Castles Series 2027
terrain
Type —
Running
timer
248 days remaining
sell
£178.00
Weather History
These values represent the 3-year monthly averages for May in Wales.
thermostatTemperature
6.8° / 15.0°
wb_sunnyFeels like
3.6° / 11.4°
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Avg sunshine hours
10h 14m
water_drop
Avg rainfall
2.4 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
13.7 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.2)
humidity_mid
Humidity
79.6%
wb_twilight
Sunrise
05:18
nightlight
Sunset
21:03
About Wales
Learn more about the host city, Wales.
Wales has a distinctive language and culture. Most tourists in Wales are attracted to the scenic mountains, impressive coasts, magnificent national parks, imposing castles, and elements of Britain's industrial heritage.