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THE RUNWEATHER RACE GUIDE

Your race.
Every condition.

Know the course. Read the weather. Arrive at the start line with a plan for the day you actually get.

Find your race

Free race guides. No account needed.

Coming upHalf marathon
ON THE START LINE

Manchester Half

4 October 2026 · Manchester, United Kingdom

Open the race briefing
FIND YOUR START LINE

Race weather guides

31 races
Half marathon5 days to go

Manchester Half

Manchester, United Kingdom

View guide
Marathon5 days to go

Cologne Marathon

Cologne, Germany

View guide
Marathon12 days to go

Chicago Marathon

Chicago, United States

View guide
Marathon2026

Amsterdam Marathon

Amsterdam, Netherlands

View guide
Marathon2026

Toronto Waterfront Marathon

Toronto, Canada

View guide
Marathon2026

Dublin Marathon

Dublin, Ireland

View guide
Half marathon2026
Course preview coming soon

Houston Half Marathon

Houston, United States

View guide
Marathon2026

New York City Marathon

New York, United States

View guide
Half marathon2026
Course preview coming soon

Philadelphia Half Marathon

Philadelphia, United States

View guide
Marathon2026

Philadelphia Marathon

Philadelphia, United States

View guide
Marathon2026

Valencia Marathon

Valencia, Spain

View guide
Marathon2026

Dallas Marathon

Dallas, United States

View guide
Half marathon2026
Course preview coming soon

Dallas Half Marathon

Dallas, United States

View guide
Half marathon2027
Course preview coming soon

Austin International Half Marathon

Austin, United States

View guide
Marathon2027

Austin Marathon

Austin, United States

View guide
Half marathon2027
Course preview coming soon

Austin Half Marathon

Austin, United States

View guide
Marathon2027
Course preview coming soon

Tokyo Marathon

Tokyo, Japan

View guide
Marathon2027

Los Angeles Marathon

Los Angeles, United States

View guide
Marathon2027
Course preview coming soon

Rome Marathon

Rome, Italy

View guide
Half marathon2027

Berlin Half Marathon

Berlin, Germany

View guide
Marathon2027
Course preview coming soon

Vienna City Marathon

Vienna, Austria

View guide
Half marathon2027
Course preview coming soon

Vienna Half Marathon

Vienna, Austria

View guide
Marathon2027

Manchester Marathon

Manchester, United Kingdom

View guide
Marathon2027

Boston Marathon

Boston, United States

View guide
Marathon2027

London Marathon

London, United Kingdom

View guide
Half marathon2027
Course preview coming soon

Edinburgh Half Marathon

Edinburgh, United Kingdom

View guide
Marathon2027

Edinburgh Marathon

Edinburgh, United Kingdom

View guide
Marathon2027

Sydney Marathon

Sydney, Australia

View guide
MarathonPast edition

Berlin Marathon

Berlin, Germany

View guide
Half marathonPast edition
Course preview coming soon

Chicago Half Marathon

Chicago, United States

View guide
MarathonPast edition
Course preview coming soon

Warsaw Marathon

Warsaw, Poland

View guide

A curated starting line-up, with dates checked against organisers. More guides are on the way. Suggest a race ↗

WEATHER, WITH CONTEXT

A forecast when it matters.
Perspective before it arrives.

Within 15 days of race day, each guide checks for an hourly forecast. Further out, five years of sampled race-window weather help you prepare. Every guide labels what is historical and links to its sources.

BUILT FOR RUNNERS

The course is only half the story.

A flat course can still feel demanding in warm air or a headwind. Explore the route, understand the conditions, and use a goal pace as a starting point for your plan.

How RunWeather reads the conditions
FROM TRAINING TO RACE DAY

Take the weather with you.

RunWeather brings running forecasts and race planning to your phone, so your plan can move with the conditions.

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Race Weather & Marathon Pacing Guides | RunWeather