Three Forts Marathon

Worthing, England, UK · May 3, 2026
partly-cloudy-day48°·54° high·Windy·Dry
6
Weather
Course
FAQ
History

Race Day Weather

partly-cloudy-day
48°at start
55° high
Windy
Dry

Cool conditions, steady wind

Runners will face a temperature range from 46°F to 55°F, with a consistent wind from the NE at 19 mph, gusting to 27 mph. Moderate humidity at 69% may require additional hydration. Participants should plan to start conservatively and adjust pacing as conditions may feel cooler due to the wind.

Race day forecast available in 1 day
clear-day5
clear-day5
clear-day5
clear-day5
partly-cloudy-day6
partly-cloudy-day7
cloudy7
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day6
partly-cloudy-day7

Get forecast alerts for Three Forts Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

Website
Area Map

Course Map

Course Map Unavailable

We don't have course map data for Three Forts Marathon yet. If you have a GPX file (or other format) for this race, we'd love to add it!

Request / Submit Map

FAQ

Ask a Question about the Three Forts Marathon

Racecast Concierge (free during beta)

Ask a question about the Three Forts Marathon and we'll do the hard part and find the answer for you within 48 hours.

By using Racecast Concierge, you agree to receive email alerts pertaining to the Three Forts Marathon and general racecast.io updates.

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 55°F and a low of 44°F with a 23% chance of rain.

Historical Weather

Based on 2 years of data
Avg Temp
56°F
L:53° H:57°
RunScore
8
Conditions
Rain Freq
50%
1 of 2 yrs
Wind10mph
Dew44°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Three Forts Marathon

Clear conditions throughout the day.

2025
clear-day
51°/57°-
7

2024 Three Forts Marathon

Partly cloudy throughout the day with afternoon rain.

2024
partly-cloudy-day
55°/57°Light
9

More ENGLAND Races

Run Gatwick
2026-05-10 · Crawley, England, UK
Portsmouth Coastal Waterside Marathon
2026-12-20 · Portsmouth, England, UK
Blackpool Marathon
2026-04-26 · Blackpool, England, UK
Great Birmingham Run
2026-05-03 · Birmingham, England, UK
Great Bristol Run
2026-05-10 · Bristol, England, UK
Great Manchester Run
2026-05-31 · Manchester, England, UK
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR