Tokyo Marathon weather.

Typically 7°C on race morning; rain in 1 of the last 10 years. Race morning (07:00 to 11:00 local time) in Tokyo on race day in each of the last 10 years; the 2027 race is on 7 Mar 2027.

Typical
7°C (45°F)
race-morning average
Coolest
1°C (34°F)
lowest reading, 07:00–11:00
Warmest
17°C (63°F)
highest reading, 07:00–11:00
Wet years
1 of 10
rain, drizzle or worse
Humidity
65%
typical
Wind
16 km/h
typical, at 10 m

Race morning, 07:00–11:00

Year by year

Race dayAverageLow–highHumidityWindRainConditions
8 Mar 20266°C (43°F)3°C (38°F)–9°C (48°F)43%17 km/h0.0 mmClear
9 Mar 20255°C (41°F)3°C (37°F)–9°C (48°F)79%9 km/h0.0 mmOvercast
10 Mar 20246°C (43°F)1°C (34°F)–10°C (50°F)51%16 km/h0.0 mmClear
5 Mar 20239°C (47°F)6°C (43°F)–11°C (52°F)61%17 km/h0.0 mmOvercast
6 Mar 20228°C (47°F)5°C (40°F)–11°C (51°F)34%22 km/h0.0 mmClear
7 Mar 20216°C (43°F)4°C (39°F)–8°C (46°F)56%20 km/h0.0 mmOvercast
8 Mar 20207°C (44°F)6°C (43°F)–8°C (46°F)87%18 km/h3.4 mmDrizzle
10 Mar 201911°C (51°F)7°C (44°F)–14°C (57°F)68%7 km/h0.0 mmOvercast
4 Mar 201811°C (52°F)6°C (43°F)–17°C (62°F)77%10 km/h0.0 mmClear
5 Mar 20178°C (47°F)3°C (38°F)–12°C (53°F)75%9 km/h0.0 mmClear

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 09:10.

Kit and pacing

What it means

  • Good racing weather

    Around 7°C is close to ideal for a fast time. Shorts and a vest are enough once you're moving; bring a throwaway layer for the wait in the start pen.

  • It can be cold

    The coolest morning here dropped to 1°C. Pack gloves and a throwaway layer even if the forecast looks kind.

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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