The Honolulu Marathon is located in Honolulu, Hawaii, known for its tropical climate. On race day, participants can generally expect warm and humid weather conditions. The typical weather during the marathon is characterized by temperatures ranging from the mid-60s to low 70s Fahrenheit (18-23 degrees Celsius). However, it is important to note that weather variations can occur. It is not unusual for occasional showers or cloud cover to cool down the temperatures slightly. Additionally, participants may experience strong trade winds coming from the northeast, which can provide some relief from the heat but also bring challenges for runners, particularly along the coastal portions of the course. Overall, race day weather for the Honolulu Marathon usually offers warm temperatures with a possibility of light showers and trade winds providing both advantages and obstacles for the participants.