Osaka Marathon

Osaka, Japan · February 28, 2027

44°·51° high·Light·Dry

Weather

Race Day Weather

44°at start

52° high

Light

Dry

Your goal

0:00:00

to see the forecast where you'll be

Cool conditions, light winds

Runners will face a temperature rise from 44°F at the start to 52°F by the finish, with a max wind of 6 mph from the NW. Humidity will be moderate at 53%, making it a comfortable race day overall. Runners should dress in layers for the pre-race wait, and pacing can be consistent without significant wind factors.

Race day forecast available in 120 days

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

5 PM

6 PM

7 PM

Pre-raceRace windowPost-race

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 Osaka Marathon

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

Race Info

The Osaka Marathon starts at the Osaka Prefectural Government building and finishes inside Osaka Castle Park, run on the last Sunday of February. The course is certified by World Athletics and the Association of International Marathons and Distance Races (AIMS). Djibouti's Ibrahim Hassan set the men's course record of 2:05:20 in 2026, and Ethiopia's Mare Dibaba set the women's record of 2:21:44 the same year. Roughly 34,000 runners take part across the full marathon and the companion 720 Naniwa Marathon run and wheelchair races.

Website

Race weekend

Sunday, February 28

9:45 AM720 Naniwa Marathon (Run) (4.5 mi)

10:30 AM720 Naniwa Marathon (Wheelchair) (0.4 mi)

Course Map

FAQ

When is the 2027 Osaka Marathon?

The 2027 Osaka Marathon will be held on Sunday February 28, 2027.

Is the Osaka Marathon a Boston Marathon Qualifier?

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

What is the time limit for the Osaka Marathon?

The time limit for the Osaka Marathon is 7 hours.

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

The forecast calls for a high of 52°F and a low of 37°F with a 12% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 14 years of data

Avg Temp

56°F

L:52° H:59°

RunScore

Conditions

Rain Freq

1 of 14 yrs

Wind6mph

Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Osaka Marathon Becoming cloudy in the afternoon with late afternoon rain. 2026	55°/69°	-	43°
2025 Osaka Marathon Partly cloudy throughout the day. 2025	38°/39°	-	26°
2024 Osaka Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2024	43°/44°	Light	41°
2023 Osaka Marathon Partly cloudy throughout the day. 2023	40°/45°	-	26°
2022 Osaka Marathon Partly cloudy throughout the day. 2022	51°/54°	-	31°
2019 Osaka Marathon Partly cloudy throughout the day. 2019	46°/59°	-	37°
2018 Osaka Marathon Becoming cloudy in the afternoon. 2018	49°/61°	-	41°
2017 Osaka Marathon Cloudy skies throughout the day. 2017	45°/55°	-	38°
2016 Osaka Marathon Partly cloudy throughout the day. 2016	56°/64°	-	38°
2015 Osaka Marathon Partly cloudy throughout the day. 2015	63°/67°	-	39°
2014 Osaka Marathon Partly cloudy throughout the day. 2014	67°/77°	-	57°
2013 Osaka Marathon Partly cloudy throughout the day. 2013	61°/67°	-	39°
2012 Osaka Marathon Partly cloudy throughout the day. 2012	46°/57°	-	31°
2011 Osaka Marathon Cloudy skies throughout the day with late afternoon rain. 2011	65°/67°	-	56°