Espoo Waterfront Marathon

About the Event

Join the 18th Espoo Waterfront on Saturday, September 19 2025, and experience the city’s stunning seaside routes. Whether you’re chasing a personal best in the full marathon (42.195 km), testing yourself in the half marathon (21.1 km), or enjoying a shorter challenge with the 10K, 5K, or the family-friendly Kids Run, there’s a distance for everyone. For a more leisurely pace, the Aalto Walk 5K lets you soak in the scenery without timing pressure. Registration is flexible: pay your entry using your employee benefits via Smartum, ePassi, Tyky, or Edenred, making it easy to join the fun. Start and finish along Espoo’s picturesque shoreline, where the thrill of running meets the beauty of the Baltic coast.

Races Offered

10K

Sep 19, 2026

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Distance — 10K

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64 days remaining

5K

Sep 19, 2026

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Distance — 5K

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64 days remaining

Aalto Walk 5K

Sep 19, 2026

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Distance — 5K

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64 days remaining

Espoon Rantamaraton

Sep 19, 2026

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Distance — 42.2K

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64 days remaining

Espoon Rantapuolikas

Sep 19, 2026

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Distance — 21.1K

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64 days remaining

Weather History

These values represent the 3-year monthly averages for September in Espoo.

thermostat Temperature

11.6° / 17.7°

wb_sunny Feels like

9.7° / 16.0°

light_mode Avg sunshine hours

8h 53m

water_drop Avg rainfall

2.9 mm

ac_unit Avg snowfall

—

air Avg wind speed

12.0 km/h (Gentle breeze)

opacity Sweat loss rate

Low

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Low (2.5)

humidity_mid Humidity

83.5%

wb_twilight Sunrise

06:50

nightlight Sunset

19:41

About Espoo

Learn more about the host city, Espoo.

Espoo with a population of a quarter of a million is the second largest city in Finland. It's part of the Helsinki Metropolitan Area along with the cities of Helsinki, Vantaa, and the small city of Kauniainen which is completely encircled by Espoo.