Understand more about the weather conditions of Bintan in August to help with preparing and training for the race. Do expect a warm weather during the race and ensure that your body is conditioned to the temperature. If this is your first time at IRONMAN 70.3 Bintan or you have been training in a cooler and less humid place, start your race at a slower pace than you normally would. Listen to your body and let it guide you to the best race pace for you.

Bintan is very close to the equator. Hence, a tropical climate is dominant all through the year with two distinct seasons. IRONMAN 70.3 Bintan is taking place during the dry southwest monsoon (which runs from June to October).

The island has an “insular character” with a constant temperature averaging at 26 °C. The temperatures reported vary between 21 °C and 32 °C. March to early November is the dry season with clear sunny days. Humidity ranges from 61 to 96 percent.

On race day sunrise is at 6:00am, right when the first start will be and sunset at 6:08pm. Remember that sun cream!

Tidal changes are very moderate during the swim phase. Hence, minimal currents and swell are expected. The protected bay ensures the South China sea is like a mirror on race morning. Sea temperature is 29 °C all year around and waters are crystal-clear, with excellent visibility.   

bintan private beach


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