The 2025 event has concluded.

Leiden Marathon

Leiden, Netherlands • May 11, 2025
TopDescriptionCourseCommunity
Register

Subscribe

Get updates on the Leiden Marathon race forecast and be the first to know if the forecast shifts.

Text Updates

Maximum one update per day. Standard messaging rates apply. Currently only supports USA, UK, and Canada.

Phone Number

Email Updates

By submitting your email you agree to receive weather forecasts and racecast.io updates.

clear-day Clear conditions throughout the day.

Rain the the forecast? Drymax socks are thin, vented, and moisture wicking to keep blisters at bay in wet or hot conditions. Drymax socks.When you buy through our links, we may earn a commission.

Area Map

Course Maps

FAQ

Ask a Question about the Leiden Marathon

Racecast Concierge (free during beta)

Ask a question about the Leiden Marathon and we'll do the hard part and find the answer for you within 48 hours.

By using Racecast Concierge, you agree to receive email alerts pertaining to the Leiden Marathon and general racecast.io updates.

When is the 2025 Leiden Marathon?

The 2025 Leiden Marathon will be held on Sunday May 11, 2025.

Community

You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR

Historical Weather & Results

RunScore
Run Score: 7
Temp
71°F
Min/Max
62°/73°F
Dew
50°F
Days of Rain
0/3
Wind
13mph
Tap a row for details.
YearLow / HighRain

Leiden Marathon 2024 Weather History

Clear conditions throughout the day with morning rain.

2024
clear-day
66°/ 78°-
Run Score: 7

Leiden Marathon 2023 Weather History

Clearing in the afternoon.

2023
partly-cloudy-day
57°/ 65°-
Run Score: 8

Leiden Marathon 2022 Weather History

Partly cloudy throughout the day.

2022
partly-cloudy-day
64°/ 76°-
Run Score: 8
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR