The IRONMAN Belgium 70.3 Knokke-Heist presents an enticing yet demanding route for triathletes, winding through the picturesque coastal town of Knokke-Heist and its neighboring regions. Participants begin with a swim in the serene and usually placid North Sea. This segment initiates at Knokke-Heist Beach, where the water is often calm and lucid, maintaining temperatures between 16-19°C (61-66°F). The swim course is straightforward, extending out and back with a pivotal turn buoy positioned at 950 meters.
Cyclists then embark on a journey across the Flemish countryside, encountering a varied landscape that includes both flat stretches and gently rolling hills, punctuated by occasional short ascents and descents. The roads here are smooth and sparsely trafficked, providing an optimal biking experience.
The concluding half marathon leads runners along the stunning Zeedijk, a coastal promenade that extends for 11 kilometres. This segment of the race offers a level and rapid course, flanked by breath taking vistas. The most notable elevation change occurs near the 18-kilometer mark, where a modest incline presents itself.
The weather in Knokke Heist, Belgium in September is typically mild and pleasant. The average temperature is around 17°C (62°F), with highs of up to 23°C (73°F) and lows of around 11°C (52°F). There is very little rainfall in September, with an average of just 50mm (2 inches). The humidity is also low, making it a comfortable time to visit.
The water temperature in Knokke-Heist, Belgium in September typically ranges from 16.7°C to 19.5°C (63.2°F to 66.7°F).
