Whidbey Island Half Marathon

Oak Harbor, WA, USA · April 25, 2027·
partly-cloudy-day48°·50° high·Light·Rain possible
10
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Whidbey Island Half Marathon race day weather

partly-cloudy-day
48°at start
53° high
Light
Rain possible
Your goal
0:00:00

Cool start — fast day potential, chance of rain

A cool 48°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Light winds shouldn't be a major factor for pacing. There's a chance of rain, so have a backup gear plan ready. Moderate humidity at 76% is worth noting for effort level, especially in later miles.

Race day forecast available in 150 days
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About the Whidbey Island Half Marathon

The Whidbey Island Half Marathon starts and finishes at Windjammer Park on the Oak Harbor waterfront on the Sunday of race weekend. The course runs through the historic downtown and along the waterfront, then west on the Marsh Trail to the Scenic Heights neighborhood. Runners complete an out and back through Scenic Heights and toward Penn Cove before returning along the Windjammer Park promenade to the finish. The half marathon course is USATF-certified.

Race weekend

Sunday, April 25
7:00 AMMarathon (26.2 mi)
8:30 AMHalf Marathon (13.1 mi)
9:00 AM10K (6.2 mi)
9:00 AM5K (3.1 mi)
10:00 AMKids Run (0.6 mi)
Area Map
Course Map

Whidbey Island Half Marathon FAQ

When is the 2027 Whidbey Island Half Marathon?

The 2027 Whidbey Island Half Marathon will be held on Sunday April 25, 2027.

What is the time limit for the Whidbey Island Half Marathon?

The time limit for the Whidbey Island Half Marathon is 4.5 hours.

What will the weather be like for the 2027 Whidbey Island Half Marathon?

The forecast calls for a high of 55°F and a low of 47°F with a 17% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

What is the weather usually like for the Whidbey Island Half Marathon?

Over the 4 years racecast.io has race-day weather for (2023 to 2026), it averaged 48°F at the start and 51°F by a typical finish. Rain fell during race hours in 1 of those years (2023).

What was the hottest Whidbey Island Half Marathon?

Of the 4 years on record, 2026 was the warmest, reaching 52°F during race hours. The coldest start was 2026, at 47°F.

What was the windiest Whidbey Island Half Marathon?

Of the 4 years on record, 2023 was the windiest, with wind averaging 12 mph during race hours. The calmest was 2026, at 6 mph.

Whidbey Island Half Marathon weather history

Based on 4 years of data
Avg Temp
49°F
L:48° H:51°
RunScore
10
Conditions
Rain Freq
25%
1 of 4 yrs
Wind8mph
Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
47°/52°-
10
2025
cloudy
49°/50°-
10
2024
partly-cloudy-day
47°/51°-
10
2023
rain
47°/49°Light
10