Race Intelligence · Nice, France

IRONMAN 70.3 Nice.
Your best day in Nice.

Nice has a coastline that makes you want to race and mountains that can make you regret how you started. The sea, the climb and the long run by the water demand different kinds of patience. IRONMAN lists the next 70.3 for 12 September 2027; this forecast uses the previous course provisionally while the new route is awaited.

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Nice, a coastal cityscape by the sea.

Race day: 12 Sept 2027
Course: Swim 1.9 km · Bike 90 km · Run 21.1 km
Historical air: 18–27°C

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Your day in Nice

What could you race?

I’m Tom, the coach behind Sense Endurance Coaching. Tell me where you are now and I’ll show you what a strong day in Nice could look like.

This prediction uses · 1.9 km swim · 90 km bike · 21.1 km run

Let’s build your race.

Your age and race category help me estimate where that performance could place you. They don’t determine how fast I think you can race.

First name OptionalAge on race day OptionalRace category

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The course behind your race

The sea invites you in. The hills decide what comes back.

The previous course began in the Mediterranean, climbed into the hinterland and returned to the Promenade des Anglais. It is the provisional basis for this forecast; check the new map when IRONMAN publishes it.

Nice sea start, previous course

Set a calm open-water effort before choosing landmarks

The previous course used calm, sheltered water off the Promenade. Use that setting as a provisional reference and check the new map when published.

Seed honestly. Settle into rhythm.

Nice hinterland, bike climb pending

Only set an uphill ceiling after the actual course is mapped

The previous course had rolling approach roads before the Col de Vence. Ride that profile conservatively if it remains on the new map.

Stay patient. Fuel early.

Coastal descent to Nice, route pending

Practise composed descending without assuming Col de Vence

The previous course climbed here and descended on technical roads. Check the new map before treating this climb or descent as part of the upcoming race.

Pace by heart rate. Brake early on the descent.

Promenade des Anglais, previous finish setting

Begin any waterfront run conservatively

The previous course used the Promenade for its run. Use the first lap as a provisional reference, then check the new route.

Easy first aid station. Check posture.

Nice finish, previous course basis

See what your provisional course basis could deliver

The previous route returned for a second lap. Only use this course plan if the new map confirms the same route.

Stay tall. Choose the last move late.

What to check in race week

IRONMAN lists the race for 12 September 2027. This forecast uses the previous course at 1.9/90/21.1 km as a provisional basis; compare the swim, climb, transitions and run with the new map before race week.

Forecast statusToo early for a forecast

A race-day forecast is not meaningful yet; check back closer to the event.

Temperature: 18.2–27.2°CDew point centred on 14.3°C
Wind and gusts: 8.7 km/hGusts up to 33.1 km/hPrevailing direction NNE
Rain likelihood: Up to 55%Wet-surface uncertainty retained

Historical baseline, 2019–2025 · Open-Meteo historical archive · Updated 2026-09-13.Historical comparison only. This is not a forecast for 2027.

Make your finish prediction and I can send this plan to you in race week.

Prepare for Nice

Build the legs.
Practise the decisions.

A finish range gives you something to work towards. The preparation is specific to this race: sea skills, disciplined climbing and safe descending can be trained from the latest available course, then checked against the 2027 map.

I’m Tom. With Sense Endurance Coaching, I’ll build that preparation around your life, follow how you respond and adjust the work as you get closer to Nice.

Explore coaching

Trisutto certified80/20 Endurance certifiedBrett Sutton’s Coach the Coach programme

Training on your own? See half distance plans

Method

How the prediction works

Event formatOrganiser’s edition information

PhotographyWillian Justen de VasconcellosPexels Licence · resized, cropped and monochrome

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IRONMAN 70.3 Nice.
Your best day in Nice.

What could you race?

Let’s build your race.

How are you swimming right now?

What can you sustain on the bike?

And where is your running today?

I can already build your race.

What will you bring to the start?

Give me a recent run that feels representative.

How have the longer runs been going?

The sea invites you in. The hills decide what comes back.

Set a calm open-water effort before choosing landmarks

Only set an uphill ceiling after the actual course is mapped

Practise composed descending without assuming Col de Vence

Begin any waterfront run conservatively

See what your provisional course basis could deliver

What to check in race week

Your plan, in race week

Build the legs.
Practise the decisions.

What could you race?

Let’s build your race.

How are you swimming right now?

What can you sustain on the bike?

And where is your running today?

I can already build your race.

What will you bring to the start?

Give me a recent run that feels representative.

How have the longer runs been going?

Set a calm open-water effort before choosing landmarks

Only set an uphill ceiling after the actual course is mapped

Practise composed descending without assuming Col de Vence

Begin any waterfront run conservatively

See what your provisional course basis could deliver

What to check in race week

Your plan, in race week

Build the legs.Practise the decisions.

Build the legs.
Practise the decisions.