The 2026 Seasonal Confusion Half Marathon has concluded.Share your finish

Seasonal Confusion Half Marathon

Race complete
Long Beach, CA, USA · September 13, 2026
cloudy72°·74° high·Calm·Dry
4
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Race Day Weather

cloudy
72°at start
78° high
Light
Dry
Your goal
0:00:00

Warm start, hydrate often

Runners will face temperatures rising from 72°F to 77°F, coupled with an average humidity of 74% and a dew point of 65°F. With light winds at 4 mph from the SE, conditions remain calm. Runners should consider adjusting their pace and focusing on hydration to maintain performance throughout the race.

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Pace Calculator

13.1mi
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Race Plan

Get your personalized Seasonal Confusion 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

Seasonal Confusion is a new half marathon, 10K, and 5K on the paved beach path near Granada Beach in Long Beach's Belmont Shore neighborhood, debuting September 13, 2026. The race plays on the early-fall weather swing between lingering summer heat and the first hints of fall. It is organized by CaliFlow Runs, which runs a similar template race at three other Southern California beach venues.

Race weekend

Sunday, September 13
7:00 AMHalf Marathon (13.1 mi)
10K (6.2 mi)
5K (3.1 mi)

FAQ

When is the 2026 Seasonal Confusion Half Marathon?

The 2026 Seasonal Confusion Half Marathon will be held on Sunday September 13, 2026.

What is the time limit for the Seasonal Confusion Half Marathon?

The time limit for the Seasonal Confusion Half Marathon is 3.5 hours.

What will the weather be like for the 2026 Seasonal Confusion Half Marathon?

The forecast calls for a high of 81°F and a low of 72°F with a 0% chance of rain.

Historical Weather

Based on 1 years of data
Avg Temp
73°F
L:72° H:74°
RunScore
4
Conditions
Rain Freq
0%
0 of 1 yrs
Wind1mph
Dew65°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
cloudy
72°/74°-
4