Windward Half Marathon
Race Day Weather
Warm conditions, manage the wind
Runners will face temperatures starting at 73°F and rising to 74°F by the finish. With humidity at 77% and a consistent east wind reaching 17 mph, pacing adjustments will be crucial, especially during headwind sections in Miles 4 and 12. Runners should focus on hydration strategies and be prepared to manage the varying wind conditions throughout the course.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Windward Half Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Windward Half Marathon race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
Race Info
The Windward Half Marathon takes runners through Kailua on Oahu's windward coast, starting and finishing in front of Kailua Intermediate School near the Boys & Girls Club Windward Oahu clubhouse. The out-and-back course heads toward Kailua Road with the Koolau mountain range as a backdrop, while a companion 5K runs the opposite direction. The Mid-Pacific Road Runners Club has organized the race every spring since at least 2019.
Race weekend
FAQ
When is the 2027 Windward Half Marathon?
What is the time limit for the Windward Half Marathon?
What will the weather be like for the 2027 Windward Half Marathon?
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2026 | 74°/74° | Light | 71° | ||
2025 | 69°/74° | - | 65° | ||
2024 | 75°/77° | - | 61° | ||
2023 | 70°/76° | - | 64° | ||
2022 | 71°/72° | Light | 63° | ||
2020 | 74°/76° | - | 64° | ||
2019 | 72°/73° | - | 61° |