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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Type —
Running
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13 days remaining
5K
Sep 19, 2026
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Distance —
5K
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Running
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13 days remaining
Aalto Walk 5K
Sep 19, 2026
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Distance —
5K
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Type —
Running
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13 days remaining
Espoon Rantamaraton
Sep 19, 2026
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Distance —
42.2K
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Type —
Running
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13 days remaining
Espoon Rantapuolikas
Sep 19, 2026
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Distance —
21.1K
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Type —
Running
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13 days remaining
Weather History
These values represent the 3-year monthly averages for September in Espoo.
thermostatTemperature
11.6° / 17.7°
wb_sunnyFeels 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.
