Coastal Delaware Running Festival Marathon

Rehoboth Beach, DE, USA • April 12, 2026

Race Day Weather

49°

64° high

Breezy

Dry

Cool conditions, steady winds

Runners will face temperatures starting at 49°F and rising to 64°F, with steady winds from the SSW at 12 mph. Humidity levels will be moderate at 61%, with a dew point of 43°F. This weather is favorable for pacing, allowing runners to maintain their speeds without significant heat concerns.

Race day forecast available in 16 days

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Pre-raceRace windowPost-race

Course Map

FAQ

When is the 2026 Coastal Delaware Running Festival Marathon?

The 2026 Coastal Delaware Running Festival Marathon will be held on Sunday April 12, 2026.

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

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

Historical Weather

Based on 23 years of data

Avg Temp

67°F

L:54° H:68°

RunScore

Conditions

Rain Freq

30%

7 of 23 yrs

Wind12mph

Dew47°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day. 2025	44°/52°	-	39°
2024 Coastal Delaware Running Festival Marathon Clear conditions throughout the day. 2024	43°/71°	-	39°
2023 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day with rain clearing later. 2023	56°/68°	Light	46°
2023 Coastal Delaware Running Festival Marathon Clearing in the afternoon. 2023	56°/79°	-	60°
2022 Coastal Delaware Running Festival Marathon Clear conditions throughout the day. 2022	55°/69°	-	55°
2019 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day. 2019	56°/73°	-	46°
2019 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2019	63°/70°	Light	62°
2018 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day with rain clearing later. 2018	48°/56°	Light	36°
2018 Coastal Delaware Running Festival Marathon Clear conditions throughout the day. 2018	36°/56°	-	28°
2017 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day. 2017	50°/72°	-	51°
2017 Coastal Delaware Running Festival Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2017	54°/56°	Light	53°
2016 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day. 2016	54°/72°	-	50°
2016 Coastal Delaware Running Festival Marathon Clear conditions throughout the day. 2016	45°/61°	-	31°
2015 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day. 2015	65°/81°	-	66°
2015 Coastal Delaware Running Festival Marathon Clear conditions throughout the day. 2015	49°/74°	-	48°
2014 Coastal Delaware Running Festival Marathon Clear conditions throughout the day with early morning rain. 2014	64°/77°	-	54°
2013 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day. 2013	47°/55°	-	39°
2013 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day with rain clearing later. 2013	62°/66°	Light	52°
2012 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day. 2012	38°/50°	-	31°
2012 Coastal Delaware Running Festival Marathon Clear conditions throughout the day. 2012	63°/78°	-	55°
2011 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2011	64°/76°	Light	64°
2009 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2009	56°/68°	Light	57°
2005 Coastal Delaware Running Festival Marathon Partly cloudy throughout the day with rain. 2005	67°/76°	-	62°