Three Forts Marathon

Worthing, England, UK • May 3, 2026

Race Day Weather

46°

56° high

Breezy

Dry

Cool start, steady conditions

Runners will face a starting temperature of 49°F, rising to a comfortable 56°F by race end. Winds will be from the S at 13 mph, with gusts reaching 21 mph, creating a mild headwind effect. With humidity at 73%, runners should consider adjusting their pace slightly to accommodate for the moisture in the air.

Race day forecast available in 21 days

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Pre-raceRace windowPost-race

Course Map

FAQ

When is the 2026 Three Forts Marathon?

The 2026 Three Forts Marathon will be held on Sunday May 3, 2026.

What is the time limit for the Three Forts Marathon?

The time limit for the Three Forts Marathon is 6 hours.

What will the weather be like for the 2026 Three Forts Marathon?

The forecast calls for a high of 56°F and a low of 45°F with a 0% chance of rain.

Historical Weather

Based on 2 years of data

Avg Temp

56°F

L:53° H:57°

RunScore

Conditions

Rain Freq

50%

1 of 2 yrs

Wind10mph

Dew44°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Conditions	Low / High	Rain	Dew Point	Score
2025 Three Forts Marathon Clear conditions throughout the day. 2025		51°/57°	-	38°
2024 Three Forts Marathon Partly cloudy throughout the day with afternoon rain. 2024		55°/57°	Light	52°

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