Rehoboth Beach Marathon

Rehoboth Beach, DE, USA · December 05, 2026·
partly-cloudy-day47°·47° high·Windy·Dry
9
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Rehoboth Beach Marathon race day weather

partly-cloudy-day
47°at start
48° high
Windy
Dry
Your goal
0:00:00

Cold start, wind challenges ahead

Runners will face steady temperatures around 47°F throughout the race, with wind gusts up to 26 mph from the NNW creating challenging conditions. The humidity is moderate at 69%, which may feel cooler, especially in exposed sections. Runners should be prepared for the headwinds between miles 3-6 and 8-9, adjusting their pacing as necessary to conserve energy.

Race day forecast available in 10 days
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Pace Calculator

26.2mi
0:00:00
HH:MM:SS
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Rehoboth Beach Marathon route and elevation

The Rehoboth Beach Marathon course has about 146 ft (45 m) of climbing and 140 ft (43 m) of descent, and finishes near the elevation it starts. It is flatter than 68% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. It has no steep miles: no mile climbs more than 40 ft (12 m).

What the hills cost

  • 3:30 on a flat course is about 3:30:25 here (25 seconds slower).
  • 4:00 on a flat course is about 4:00:30 here (30 seconds slower).
  • 4:30 on a flat course is about 4:30:30 here (30 seconds slower).

Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.

Even-effort splits for a 3:30, 4:00 or 4:30 finish
The Rehoboth Beach Marathon mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent3:304:004:30
18 ft7 ft7:599:0810:16
213 ft13 ft8:009:0810:17
31 ft5 ft7:599:0710:15
46 ft12 ft7:579:0610:15
54 ft6 ft7:599:0710:16
65 ft6 ft7:599:0810:16
712 ft8 ft8:019:0910:18
826 ft4 ft8:119:2110:30
921 ft44 ft7:549:0210:10
108 ft6 ft8:009:0910:17
112 ft8 ft7:589:0610:15
125 ft2 ft8:019:0910:18
137 ft7 ft7:599:0810:16
1440 ft4 ft8:189:2910:40
1510 ft35 ft7:539:0110:09
167 ft21 ft7:569:0410:11
175 ft5 ft7:599:0810:17
186 ft3 ft8:019:0910:17
1914 ft0 ft8:069:1510:26
205 ft0 ft8:029:1110:19
214 ft3 ft8:009:0810:17
228 ft22 ft7:569:0510:12
230 ft6 ft7:589:0610:15
2425 ft8 ft8:079:1710:27
259 ft6 ft8:019:1010:18
261 ft5 ft7:599:0610:15
Last 0.21 ft0 ft1:472:032:18

Explore the Rehoboth Beach Marathon course with the weather and your pace along the route, or compare it with other races.

Race Plan

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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.

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Weather Splits
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Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
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About the Rehoboth Beach Marathon

The Rehoboth Beach Seashore Marathon runs each December in Rehoboth Beach, Delaware, pairing a full marathon with a half marathon on a flat, certified Boston-qualifying course. The route starts at the Bandstand on Rehoboth Avenue, crosses onto the Boardwalk, and heads north through Cape Henlopen State Park on the Gordons Pond Trail before the marathon turns around near the Cape May-Lewes Ferry terminal in Lewes. Both races finish on 4th Street behind Rehoboth Beach Running Co. Seashore Striders, a local running club, organizes the race, which has run most years since 2008 aside from a pandemic-related gap in 2020.

Race weekend

Saturday, December 5
7:00 AMMarathon (26.2 mi)
7:00 AMHalf Marathon (13.1 mi)

Rehoboth Beach Marathon FAQ

When is the 2026 Rehoboth Beach Marathon?

The 2026 Rehoboth Beach Marathon will be held on Saturday December 5, 2026.

Is the Rehoboth Beach Marathon a Boston Marathon Qualifier?

Yes, the Rehoboth Beach Marathon is an official Boston Marathon qualifier.

What is the time limit for the Rehoboth Beach Marathon?

The time limit for the Rehoboth Beach Marathon is 7 hours.

What will the weather be like for the 2026 Rehoboth Beach Marathon?

The forecast calls for a high of 52°F and a low of 45°F with a 9% chance of rain.

What is the elevation gain of the Rehoboth Beach Marathon?

The Rehoboth Beach Marathon course has about 146 ft (45 m) of climbing and 140 ft (43 m) of descent, and finishes near the elevation it starts.

Is the Rehoboth Beach Marathon flat?

Yes. It has about 6 ft (2 m) of climbing per mile, and no mile climbs more than 40 ft (12 m). 4:00 on a flat course is about 4:00:30 here (30 seconds slower). It is flatter than 68% of the marathon courses racecast.io has mapped, measured by what the hills cost in time.

What is the weather usually like for the Rehoboth Beach Marathon?

Over the 17 years racecast.io has race-day weather for (2008 to 2025), it averaged 39°F at the start and 47°F by a typical finish. Rain fell during race hours in 3 of those years (2013, 2022 and 2025).

What was the hottest Rehoboth Beach Marathon?

Of the 17 years on record, 2022 was the warmest, reaching 59°F during race hours. The coldest start was 2018, at 24°F.

What was the windiest Rehoboth Beach Marathon?

Of the 17 years on record, 2022 was the windiest, with wind averaging 13 mph during race hours. The calmest was 2017, at 2 mph.

Rehoboth Beach Marathon weather history

Based on 17 years of data
Avg Temp
43°F
L:39° H:47°
RunScore
9
Conditions
Rain Freq
18%
3 of 17 yrs
Wind7mph
Dew34°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
rain
35°/38°Light
10
2024
partly-cloudy-night
29°/38°-
10
2023
cloudy
55°/57°-
7
2022
cloudy
57°/59°Light
7
2021
cloudy
46°/55°-
10
2019
clear-night
35°/42°-
10
2018
clear-night
24°/37°-
10
2017
clear-night
30°/53°-
10
2016
clear-night
41°/49°-
9
2015
clear-night
31°/49°-
10
2014
cloudy
47°/55°-
10
2013
rain
39°/41°Light
9
2012
cloudy
52°/53°-
9
2011
partly-cloudy-night
42°/46°-
10
2010
clear-night
26°/43°-
10
2009
clear-day
42°/53°-
10
2008
partly-cloudy-day
28°/35°-
9