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Triathlon Atlas

Full distance · 13 June 2027

IRONMAN Cairns

Cairns, Australia

The race at a glance

Official race website
Circuit
IRONMAN
Distance
Full distance
Terrain
Road
Swim
3.8 km
Bike
180 km
Run
42.2 km
Date
13 Jun 2027
Registration
Open
Swim venue
Ocean
Average water temperature
23 °C
Bike profile
Rolling
Bike elevation gain
1,122 m
Run profile
Flat
Run elevation gain
65 m
High air temperature
29 °C
Low air temperature
18 °C
Overall cut-off
16 h 30 min
Altitude
7 m
First edition
2011
Swim start
Rolling start

Edition history

202614 Jun 2026Held
202515 Jun 2025Held
202416 Jun 2024Held
202318 Jun 2023Held
202212 Jun 2022Held
20216 Jun 2021Held
20199 Jun 2019Held
201810 Jun 2018Held
201711 Jun 2017Held

How the day is laid out

The swim is held in the ocean, over 2 loops, from a rolling start. An average of 23 °C is close to the threshold where wetsuit rules start to tighten. Plan for both answers and check the call on race morning.

The bike leg is labelled rolling.

The run is labelled flat, over 4 laps.

A rolling bike ahead of a flat run keeps the climbing on the bike and lets the run settle into a rhythm.

Expect air between 18 °C and 29 °C on race day. A spread of 11 degrees across the day matters as much as the peak, because what you wear at the swim exit is rarely what you want at the far end of the bike.

Two transitions about 30 km apart

The swim and T1 are at Palm Cove. T2 and the finish are at Fogarty Park in central Cairns, about 30 km south, so bike and run gear go in separate bags and supporters have to choose a site or travel between them. The rolling start has four zones by expected swim time, from under 1 h 05 to over 1 h 25. Cut-offs from each athlete's start: 2 h 20 min for the swim, 10 h for the bike. Race days from 2024 to 2026 reached highs of 27 to 30 °C, with the sea at 22 to 23 °C.

Source: ironman.com, course page, read on 22 October 2026.

Against the calendar

Where this race sits among the others

Ranks are computed across every race of the same distance.

  • Average water temperature

    23 °C · median 22 °C

    The 19th warmest of the 48 full-distance races with a figure, across every circuit.

  • High air temperature

    29 °C · median 25 °C

    The 12th hottest of the 52 full-distance races with a figure, across every circuit.

  • Bike elevation gain

    1122 m · median 1130 m

    The 21st flattest of the 43 full-distance races with a figure, across every circuit.

13

races of this distance pair a rolling bike with a flat run, out of 55. 20 share the bike profile alone.

58

races across every distance fall in June, out of 354.

28

races are held in Oceania. 2 of them in the same month as this one.

Questions about this race

When is IRONMAN Cairns 2027?
IRONMAN Cairns is held on 13 June 2027 in Cairns, Australia. Registration is open on the official race page.
Is a wetsuit allowed at IRONMAN Cairns?
Most likely. The average water temperature is 23 °C, below the 24.5 °C limit up to which wetsuits are allowed for age-group athletes. The official call is made on race morning.
What is the cut-off at IRONMAN Cairns?
The course closes 16 h 30 min after the start. Intermediate cut-offs after the swim and the bike are in the athlete guide.
How hard is IRONMAN Cairns?
The bike course climbs about 1122 m, the 21st flattest of 43 full-distance races with a figure. The bike is labelled rolling and the run flat. Expect highs of about 29 °C on race day.

Where to stay

Hotels and rentals around the race venue, for the nights around race day.

Suggested stay: 11 Jun 2027 to 14 Jun 2027

The map is provided by Stay22. Bookings are made with the provider.

Races of the same distance in the same region

Entries are handled by the organiser

Registration and the athlete guide are on the official race page.

Open the official race page