Leiden Half Marathon

Leiden, Netherlands · May 9, 2027·
partly-cloudy-day59°·62° high·Breezy·Dry
7
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Race Day Weather

partly-cloudy-day
59°at start
64° high
Breezy
Dry
Your goal
0:00:00

Comfortable temps

Mild 59°F temps at gun time mean comfortable early miles without overheating risk. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 198 days
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Pace Calculator

13.1mi
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Race Plan

Get your personalized Leiden Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Leiden Half Marathon covers 21.1 kilometres on the Sunday of race weekend, starting on the Koninginnelaan and finishing at the Vismarkt in the city centre. The course leaves town for open polders and villages in the surrounding countryside, crosses the Rhine on a temporary bridge, then returns along the Leiden singels to the finish. The surface mixes city streets with rural paths.

Race weekend

Saturday, May 8
10:30 PM5K (3.1 mi)
Sunday, May 9
8:30 AMMarathon (26.2 mi)
10:00 AMHalf Marathon (13.1 mi)
1:00 PM10K (6.2 mi)
Area Map

Course Map

FAQ

When is the 2027 Leiden Half Marathon?

The 2027 Leiden Half Marathon will be held on Sunday May 9, 2027.

What is the time limit for the Leiden Half Marathon?

The time limit for the Leiden Half Marathon is 3 hours.

What will the weather be like for the 2027 Leiden Half Marathon?

The forecast calls for a high of 62°F and a low of 46°F with a 10% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 5 years of data
Avg Temp
64°F
L:62° H:66°
RunScore
6
Conditions
Rain Freq
0%
0 of 5 yrs
Wind10mph
Dew50°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2026
partly-cloudy-day
57°/57°-
8
2025
clear-day
65°/70°-
6
2024
clear-day
66°/71°-
5
2023
partly-cloudy-day
57°/61°-
7
2022
partly-cloudy-day
64°/71°-
5