How should athletes check Ironman 70.3 Weymouth race-day weather?

Use the race-day planner when the forecast window opens, then check official event and local safety guidance before final decisions.

Weymouth, Dorset

Ironman 70.3 Weymouth weather

Q: What is the typical weather for Ironman 70.3 Weymouth?

Ironman 70.3 Weymouth is usually held around September. Weymouth is an autumn coastal race where sea conditions and wind can outweigh the mild air forecast.

Weymouth is an autumn coastal race where sea conditions and wind can outweigh the mild air forecast.

70.3SeptemberOcean swim

Typical race window

September conditions for Weymouth, Dorset

Climate normals are temporarily unavailable. Use the swim, bike and run notes below as the evergreen course-weather read, then build a race-day forecast once your date enters the live forecast window.

Swim

Beach chop, tide state and local marine guidance are the main swim checks.

Bike

Rolling Dorset roads can become more technical when wet or gusty.

Run

The run is usually temperate, though wind chill and showers can affect comfort.

Live race-day forecast

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This race page stays evergreen. For date, start time and expected segment durations, open the race-day planner with Weymouth, Dorset prefilled.

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