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Tenby, Wales

Ironman Wales weather

Tenby is a rugged coastal race where wind, rain and cooler air can all influence race-day choices.

IronmanSeptemberOcean swim

Typical race window

September weather in Tenby, Wales

Monthly climate normal from 2016-2025 archive data.

September
Air temperature

12°C-17°C

Average wind

26 km/h

Peak daily wind

52 km/h

Wet-day chance

53%

A typical day in September averages 4.3 mm of precipitation, with average gusts around 46 km/h. Treat this as planning context, not a live forecast.

Jan

9°C

Feb

9°C

Mar

10°C

Apr

12°C

May

15°C

Jun

18°C

Jul

19°C

Aug

19°C

Sep

17°C

Oct

14°C

Nov

11°C

Dec

10°C

Swim

Sea state, tides and official beach guidance are central to the swim decision.

Bike

Rolling roads and coastal exposure make gusts and wet surfaces important bike factors.

Run

The run can swing from comfortable to cold or wet, so layers and pacing flexibility matter.

Live race-day forecast

Build the exact read when your date matters.

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

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