IRONMAN Lanzarote
Lanzarote, Spain · usually held in May
Ocean swim · wetsuits usually legal
About 14.2 m of climbing per km — hilly, by our rule of thumb.
Hot or humid conditions
IRONMAN Lanzarote is a Full / 140.6 triathlon in Lanzarote, Spain, usually held in May. Below are the swim, the bike course and the typical conditions around race day, and what they mean for your gear and fueling. Sources are listed at the bottom of the page.
Racing it
The swim
The swim is in the sea. The average water temperature around race day is about 20°C (68°F). Wetsuits are usually allowed at that temperature, so check the rule on the day and use the Wetsuit Finder to match a suit to it.
The bike
The bike course has about 2,551 m (8,370 ft) of climbing. That’s about 14.2 m per km, hilly by our rule of thumb: gearing and pacing matter more than aero.
Conditions and fueling
Around race day, air temperatures typically run from about 16.8°C (62°F) to a daytime high of about 24.6°C (76°F). By our rule of thumb that’s hot or humid: plan extra fluid and sodium with the Race Nutrition Calculator, and practise drinking on the bike.
FAQ
Is IRONMAN Lanzarote wetsuit legal?
Usually, yes. The final call is made on race day from the measured water temperature.
How warm is the water at IRONMAN Lanzarote?
The average water temperature around race day is about 20°C (68°F). It varies year to year, so check the official update in race week.
Is the IRONMAN Lanzarote bike course hilly?
The bike course has about 2,551 m (8,370 ft) of climbing. That’s about 14.2 m per km, hilly by our rule of thumb: gearing and pacing matter more than aero.
Your race, tool by tool
Bring your wetsuit
Typical water temperature is in our “moderate” band: most suits cover it comfortably.
Find a wetsuit for this water →Climbing ability first
On a hilly course a road bike with clip-ons gives up little; gearing and weight matter more than usual.
Clip-ons or tri bike? →75g carbs · 900mg sodium · 950ml fluid an hour
Calculated for a mid-pack, average-sweat 70–80 kg athlete in these conditions (finish around 12:12). Make it yours in the calculator.
Personalise my fuel plan →Race checklist, pre-filled
Distance, swim and forecast already set for this race.
Open my checklist →Your race-day watts and paces
Enter your FTP, threshold pace or heart rate and get targets for this race’s distance and conditions.
Plan my pacing →Conditions are typical, not a forecast. Wetsuit rules, course and aid stations can change: always check the official athlete guide.
Sources: www.clublasanta.com, coastwatch.pfeg.noaa.gov, www.clublasanta.com, www.aemet.es · water temperature: coastwatch.pfeg.noaa.gov · facts checked 2026-11-02