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IRONMAN 70.3 Weymouth

Weymouth, South West, United Kingdom

calendar_today 20 Sep, 2026

About the Event

Begin your own legendary story on the iconic Jurassic Coast at IRONMAN 70.3 Weymouth on September 20, 2026. Dive into a spectacular sea swim along a World Heritage Site coastline, the only 70.3 event in the UK offering this breathtaking oceanic start. You’ll then conquer a rolling bike tour through the stunning Dorset countryside before powering to the finish on a famously fast, flat seaside run. Voted the #1 Most Recommended Race in EMEA, this athlete-favorite combines the thrill of Olympic-level venues with a welcoming atmosphere perfect for first-timers and seasoned competitors chasing a qualifying slot. Experience why this celebrated race-cation destination earns top honors for its swim, support, and unforgettable coastal energy. Secure your entry to earn your medal on a course where natural beauty and personal triumph meet.

Races Offered

Ironman 70.3

Sep 20, 2026

straighten

Distance — 1.9 km 90.1 km 21.1 km

terrain

Type — —

timer

67 days remaining

Weather History

These values represent the 3-year monthly averages for September in Weymouth.

thermostat Temperature

13.0° / 18.6°

wb_sunny Feels like

10.2° / 16.1°

light_mode Avg sunshine hours

8h 16m

water_drop Avg rainfall

4.3 mm

ac_unit Avg snowfall

—

air Avg wind speed

17.2 km/h (Gentle breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (3.5)

humidity_mid Humidity

80.4%

wb_twilight Sunrise

06:45

nightlight Sunset

19:22

About Weymouth

Learn more about the host city, Weymouth.

Weymouth is a seaside resort town in Dorset, a county on the south coast of the West Country, in England. Visitors are attracted by its harbour and position, approximately halfway along the Jurassic Coast, a World Heritage Site, important for its geology and landforms.