Coastal Delaware Running Festival Marathon

Rehoboth Beach, DE, USA · April 11, 2027·
partly-cloudy-day50°·51° high·Breezy·Dry
9
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Coastal Delaware Running Festival Marathon race day weather

partly-cloudy-day
50°at start
52° high
Windy
Dry
Your goal
0:00:00

Cool and breezy, plan for wind

Runners will face temperatures starting at 50°F and rising to 51°F, with average humidity at 77%. A steady SSW wind will peak at 15 mph, creating a headwind during crucial segments like Miles 10, 17, and 19. Runners should plan for pacing adjustments, especially in exposed areas, and consider hydration strategies to counteract the humidity.

Race day forecast available in 137 days
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Pace Calculator

26.2mi
0:00:00
HH:MM:SS
Pace
—

Enter a finish time to see what race day does to it.

Common Goals:

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Coastal Delaware Running Festival Marathon route and elevation

The Coastal Delaware Running Festival Marathon course has about 748 ft (228 m) of climbing and 742 ft (226 m) of descent, and finishes near the elevation it starts. It is flatter than 60% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 1, with 73 ft (22 m) of climbing.

Biggest climbs

  • Miles 9.2 to 9.8: climbs about 50 ft (16 m).

What the hills cost

  • 3:30 on a flat course is about 3:30:40 here (40 seconds slower).
  • 4:00 on a flat course is about 4:00:45 here (45 seconds slower).
  • 4:30 on a flat course is about 4:30:50 here (50 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 Coastal Delaware Running Festival Marathon mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent3:304:004:30
173 ft69 ft8:009:0910:18
218 ft32 ft7:569:0310:11
358 ft66 ft7:569:0510:13
431 ft29 ft8:009:0810:17
512 ft37 ft7:539:0110:08
659 ft39 ft8:099:1810:28
747 ft43 ft8:019:1010:18
853 ft26 ft8:129:2310:34
926 ft62 ft7:518:5710:04
1057 ft34 ft8:109:2110:31
1133 ft61 ft7:528:5910:07
1227 ft23 ft8:019:1010:18
1322 ft18 ft8:019:0910:18
146 ft11 ft7:579:0610:14
1511 ft8 ft8:019:0910:18
1618 ft21 ft7:589:0610:14
1739 ft37 ft7:599:0910:17
1824 ft20 ft8:019:0910:18
1932 ft24 ft8:039:1210:21
2017 ft21 ft7:589:0610:14
2127 ft10 ft8:079:1710:27
229 ft13 ft7:589:0610:14
2356 ft48 ft8:039:1210:21
2459 ft60 ft7:589:0710:15
2546 ft20 ft8:129:2210:33
2638 ft82 ft7:498:5510:02
Last 0.221 ft7 ft1:542:112:27

Explore the Coastal Delaware Running Festival Marathon course with the weather and your pace along the route, or compare it with other races.

Race Plan

Get your personalized Coastal Delaware Running Festival 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

About the Coastal Delaware Running Festival Marathon

Race weekend

Saturday, April 10
9:00 AM5K (3.1 mi)
Sunday, April 11
7:00 AMMarathon (26.2 mi)
7:20 AM9K (5.6 mi)7:40 AMHalf Marathon (13.1 mi)

Coastal Delaware Running Festival Marathon FAQ

When is the 2027 Coastal Delaware Running Festival Marathon?

The 2027 Coastal Delaware Running Festival Marathon will be held on Sunday April 11, 2027.

Is the Coastal Delaware Running Festival Marathon a Boston Marathon Qualifier?

Yes, the Coastal Delaware Running Festival Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2027 Coastal Delaware Running Festival Marathon?

The forecast calls for a high of 54°F and a low of 48°F with a 8% chance of rain.

What is the elevation gain of the Coastal Delaware Running Festival Marathon?

The Coastal Delaware Running Festival Marathon course has about 748 ft (228 m) of climbing and 742 ft (226 m) of descent, and finishes near the elevation it starts. It is flatter than 60% of the marathon courses racecast.io has mapped, measured by what the hills cost in time.

Is the Coastal Delaware Running Festival Marathon hilly?

Moderately. It has about 29 ft (9 m) of climbing per mile. The hardest mile is mile 1, with 73 ft (22 m) of climbing. 4:00 on a flat course is about 4:00:45 here (45 seconds slower).

What is the weather usually like for the Coastal Delaware Running Festival Marathon?

Over the 25 years racecast.io has race-day weather for (2005 to 2026), it averaged 53°F at the start and 63°F by a typical finish. Rain fell during race hours in 7 of those years.

What was the hottest Coastal Delaware Running Festival Marathon?

Of the 25 years on record, 2023 was the warmest, reaching 75°F during race hours. The coldest start was 2021, at 36°F.

What was the windiest Coastal Delaware Running Festival Marathon?

Of the 25 years on record, 2009 was the windiest, with wind averaging 16 mph during race hours. The calmest was 2023, at 3 mph.

Coastal Delaware Running Festival Marathon weather history

Based on 25 years of data
Avg Temp
58°F
L:53° H:63°
RunScore
7
Conditions
Rain Freq
28%
7 of 25 yrs
Wind8mph
Dew48°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
42°/56°-
9
2025
cloudy
44°/50°-
10
2024
clear-day
44°/67°-
8
2023
cloudy
56°/64°Light
7
2023
fog
56°/75°-
5
2022
clear-day
56°/68°-
6
2021
clear-night
35°/46°-
10
2019
cloudy
56°/64°-
8
2019
cloudy
62°/66°Light
5
2018
cloudy
48°/53°Light
9
2018
clear-day
37°/50°-
10
2017
partly-cloudy-day
50°/63°-
8
2017
rain
54°/56°Light
8
2016
partly-cloudy-day
54°/68°-
7
2016
clear-day
45°/57°-
10
2015
fog
65°/75°-
4
2015
partly-cloudy-day
49°/67°-
8
2014
partly-cloudy-day
64°/73°-
5
2013
clear-night
47°/53°-
10
2013
cloudy
62°/66°Light
6
2012
partly-cloudy-night
38°/46°-
10
2012
clear-day
63°/74°-
5
2011
cloudy
63°/70°Light
5
2009
rain
58°/68°Light
5
2005
partly-cloudy-day
67°/73°-
4