Windward Half Marathon

Kailua, HI, USA · March 21, 2027
partly-cloudy-day73°·74° high·Windy·Dry
3
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Race Day Weather

partly-cloudy-day
73°at start
74° high
Windy
Dry
Your goal
0:00:00

Warm conditions, adjust pacing strategy

Runners will face temperatures starting at 73°F and rising slightly to 74°F, accompanied by high humidity at 77%. A consistent crosswind will occur throughout the race, with headwinds between miles 4-5 and miles 12-14. Adjusting pacing strategies is essential to combat the warmth and humidity, particularly in the exposed sections with headwinds.

Race day forecast available in 149 days
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Pace Calculator

13.1mi
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Race Plan

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 Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

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

Sunday, March 21
6:00 AMHalf Marathon (13.1 mi)
6:05 AM5K (3.1 mi)

FAQ

When is the 2027 Windward Half Marathon?

The 2027 Windward Half Marathon will be held on Sunday March 21, 2027.

What is the time limit for the Windward Half Marathon?

The time limit for the Windward Half Marathon is 4 hours.

What will the weather be like for the 2027 Windward Half Marathon?

The forecast calls for a high of 74°F and a low of 73°F with a 3% chance of rain.

Historical Weather

Based on 7 years of data
Avg Temp
73°F
L:72° H:75°
RunScore
4
Conditions
Rain Freq
29%
2 of 7 yrs
Wind7mph
Dew64°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2026
rain
74°/74°Light
3
2025
partly-cloudy-night
69°/74°-
4
2024
partly-cloudy-night
75°/77°-
4
2023
partly-cloudy-night
70°/76°-
4
2022
partly-cloudy-night
71°/72°Light
4
2020
partly-cloudy-night
74°/76°-
4
2019
clear-night
72°/73°-
4