Tuusulanjärven Maraton weather.

Typically 4°C on race morning; rain in 4 of the last 10 years. Race morning (07:00 to 11:00 local time) in Uusimaa on race day in each of the last 10 years; the 2027 race is on 24 Apr 2027.

Typical
4°C (39°F)
race-morning average
Coolest
-1°C (30°F)
lowest reading, 07:00–11:00
Warmest
18°C (64°F)
highest reading, 07:00–11:00
Wet years
4 of 10
rain, drizzle or worse
Humidity
74%
typical
Wind
11 km/h
typical, at 10 m

Race morning, 07:00–11:00

Year by year

Race dayAverageLow–highHumidityWindRainConditions
25 Apr 20265°C (42°F)4°C (39°F)–8°C (46°F)79%13 km/h0.6 mmOvercast
26 Apr 20254°C (38°F)0°C (33°F)–6°C (43°F)58%14 km/h0.0 mmMainly clear
27 Apr 20243°C (37°F)0°C (33°F)–5°C (42°F)84%9 km/h0.0 mmOvercast
22 Apr 20239°C (49°F)4°C (39°F)–14°C (57°F)71%7 km/h0.0 mmClear
23 Apr 20226°C (43°F)2°C (36°F)–10°C (50°F)75%12 km/h0.0 mmMainly clear
24 Apr 20211°C (34°F)1°C (33°F)–2°C (35°F)93%11 km/h0.7 mmLight drizzle
25 Apr 20202°C (35°F)-1°C (30°F)–5°C (41°F)52%11 km/h0.0 mmClear
27 Apr 201913°C (56°F)8°C (47°F)–18°C (64°F)71%6 km/h0.0 mmClear
21 Apr 20186°C (43°F)6°C (42°F)–6°C (43°F)94%22 km/h0.6 mmLight drizzle
22 Apr 20173°C (37°F)0°C (32°F)–5°C (41°F)72%11 km/h0.2 mmLight drizzle

Each row is the race's date that year where we know it, else the same weekday nearest its usual date. Temperatures and humidity are averaged over 07:00 to 11:00 local time, rain is the total over those hours, and conditions are the commonest over the morning. The marathon starts at 10:00.

Kit and pacing

What it means

  • Dress for the cold start

    Mornings are usually around 4°C. Gloves, a hat and an old top you can throw away at the start are worth packing, and warm up for longer than usual: cold muscles take a few kilometers to get going.

  • Be ready for rain

    It rained on 4 of the last 10 race mornings. A bin bag or cheap poncho keeps you dry in the start pen; anti-chafe balm and socks that don't hold water help over the distance, and a cap keeps rain out of your eyes.

  • The weather varies a lot

    Race mornings here have ranged by 12°C from year to year. Pack for both, and settle your kit and pacing from the forecast in the last few days.

General guidance from past years' numbers. Check the forecast in race week.

The course 2027 dates and entry

Weather data by Open-Meteo.com, from its historical weather archive (CC BY 4.0).

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