H.C. Andersen Marathon

Odense, Denmark · September 27, 2026

55°·61° high·Light·Dry

Weather

Race Day Weather

55°at start

61° high

Breezy

Dry

Comfortable temps

Mild 55°F temps at gun time mean comfortable early miles without overheating risk. Light winds shouldn't be a major factor for pacing. Moderate humidity at 73% is worth noting for effort level, especially in later miles.

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Distance: 26.2mi

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Race Info

The H.C. Andersen Marathon runs through the streets of Odense, Denmark, named for the city's most famous native son. Marathon and half marathon runners start together at Odense Idraetspark and cover a flat loop course twice, finishing on the track inside Odense Atletikstadion. First held in 2000, the race added a half marathon in 2006 and a 10K, "Run the Last 10," in 2017. In 2019 the race was recognized as having the fastest average marathon finishing time in the world, at 3:51:22.

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Course Map

FAQ

When is the 2026 H.C. Andersen Marathon?

The 2026 H.C. Andersen Marathon will be held on Sunday September 27, 2026.

Is the H.C. Andersen Marathon a Boston Marathon Qualifier?

Yes, the H.C. Andersen Marathon is an official Boston Marathon qualifier.

What is the time limit for the H.C. Andersen Marathon?

The time limit for the H.C. Andersen Marathon is 6 hours.

What will the weather be like for the 2026 H.C. Andersen Marathon?

The forecast calls for a high of 61°F and a low of 50°F with a 7% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 6 years of data

Avg Temp

59°F

L:56° H:61°

RunScore

Conditions

Rain Freq

17%

1 of 6 yrs

Wind10mph

Dew50°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 H.C. Andersen Marathon Clearing in the afternoon. 2025	57°/63°	-	49°
2024 H.C. Andersen Marathon Clear conditions throughout the day. 2024	51°/57°	-	42°
2023 H.C. Andersen Marathon Partly cloudy throughout the day with morning rain. 2023	58°/64°	-	48°
2021 H.C. Andersen Marathon Partly cloudy throughout the day. 2021	60°/65°	-	60°
2019 H.C. Andersen Marathon Partly cloudy throughout the day with rain. 2019	57°/57°	Light	55°
2018 H.C. Andersen Marathon Partly cloudy throughout the day. 2018	54°/58°	-	47°