Helsinki Marathon

Runners will face temperatures starting at 60°F and peaking at 61°F, with high humidity at 84%. Winds will be from the south, with tailwinds in the early miles but shifting to headwinds from miles 15 to 23. Adjust pacing especially during the headwind sections, and stay hydrated to combat the humidity.

Race day forecast available in 272 days

5 AM

6 AM

7 AM

Start

8 AM

9 AM

10 AM

11 AM

Finish

12 PM

1 PM

Cutoff

2 PM

3 PM

Pace Calculator

Distance: 26.2mi

Finish time

0:00:00

HH:MM:SS

Pace

—

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

Pace

—

Enter a finish time to see your race-day finish and True Effort, with what the weather, wind and hills do to it.

Common Goals:

Get forecast alerts for Helsinki Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

About the Helsinki Marathon

The Helsinki Marathon is an August marathon in Helsinki, Finland, organized by Runner's High and run on a single-loop, AIMS-certified course starting and finishing at Meripuisto along the city's waterfront. It is a Boston Marathon qualifying race. The event weekend also includes a half marathon, a 10K, and a marathon relay. The next edition runs Saturday, August 28, 2027.

Website

Race weekend

Saturday, August 28

10K (6.2 mi)

Half Marathon (13.1 mi)

Marathon Relay (26.2 mi)

Helsinki Marathon FAQ

When is the 2027 Helsinki Marathon?

The 2027 Helsinki Marathon will be held on Saturday August 28, 2027.

Is the Helsinki Marathon a Boston Marathon Qualifier?

Yes, the Helsinki Marathon is an official Boston Marathon qualifier.

What is the time limit for the Helsinki Marathon?

The time limit for the Helsinki Marathon is 6.17 hours.

What will the weather be like for the 2027 Helsinki Marathon?

The forecast calls for a high of 63°F and a low of 59°F with a 12% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

What is the weather usually like for the Helsinki Marathon?

Over the 5 years racecast.io has race-day weather for (2022 to 2026), it averaged 58°F at the start and 64°F by a typical finish. Rain fell during race hours in 2 of those years (2023 and 2026).

What was the hottest Helsinki Marathon?

Of the 5 years on record, 2022 was the warmest, reaching 75°F during race hours. The coldest start was 2025, at 46°F.

What was the windiest Helsinki Marathon?

Of the 5 years on record, 2024 was the windiest, with wind averaging 14 mph during race hours. The calmest was 2026, at 2 mph.

Helsinki Marathon weather history

Based on 5 years of data

Avg Temp

61°F

L:58° H:64°

RunScore

Conditions

Rain Freq

40%

2 of 5 yrs

Wind8mph

Dew55°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Helsinki Marathon Partly cloudy throughout the day with rain. 2026	54°/63°	Light	56°
2025 Helsinki Marathon Partly cloudy throughout the day. 2025	46°/59°	-	46°
2024 Helsinki Marathon Partly cloudy throughout the day with early morning rain. 2024	64°/65°	-	55°
2023 Helsinki Marathon Cloudy skies throughout the day with rain clearing later. 2023	56°/60°	Light	58°
2022 Helsinki Marathon Becoming cloudy in the afternoon. 2022	71°/75°	-	62°

More Finland Races

Helsinki City Run

2027-05-08 · 42.200km · Helsinki, Finland

ColleMar-athon

2027-05-09 · Marathon · Barchi, Pesaro e Urbino, Italy

Jacksonville Marathon

2026-12-12 · Marathon · Jacksonville, FL, USA

Milano Marathon

2027-04-04 · Marathon · Milan, Italy

Cracovia Marathon

2027-04-18 · Marathon · Krakow, Poland

Rotterdam Marathon

2027-04-11 · Marathon · Rotterdam, Netherlands

Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide