The Ironman South Hokkaido, Japan begins with a swim in the Tsugaru Kaikyo, a strait famous among channel swimmers for its demanding conditions.
Following the swim, athletes transition to the bike segment, which takes place on the Hakodate-Esashi expressway. This allows cyclists to potentially achieve higher speeds than in typical Ironman events, adding an element of excitement and strategy to the ride.
The final leg of the triathlon is a run through the scenic countryside of Kikonai, Hokkaido. In contrast to the potentially fast-paced bike segment, the run course is completely flat, winding through rural roads. This flat terrain offers athletes the opportunity for quick times if they’ve managed their energy well through the earlier segments.
In Hokkaido, Japan, the weather conditions in September are characterized by:
Temperature: The average day temperature in September is around 17°C (64°F), with high temperatures reaching approximately 22°C (72°F), and low temperatures dropping to about 14°C (57°F). Night temperatures are typically around 15°C (60°F). These temperatures indicate a transition into autumn, with mild or pleasantly warm conditions prevailing.
Rainfall: Hokkaido experiences a significant amount of rainfall in September. The average rainfall is about 171 mm, spread over an estimated 19 days of the month. However, another source indicates slightly lower rainfall, averaging 143 mm over 13 rainy days. This suggests that while the month is relatively wet, there might be variations in rainfall across different areas of Hokkaido.
The average water temperature in Hokkaido, Japan in September is 17°C (63°F).
