36/100 Challenging

Difficulty

Marathon Index Score

2026 edition held Sep 6, 2026

Next edition expected

Usually September

2027 date not yet confirmed

Weather: Medellín Marathon

Typical climate in September (an estimate, not measured race-day data). Use it to plan your race strategy, clothing, and hydration.

Racing conditions: Hot

Typical climate for the race month — an estimate, not a forecast or a race-day record

23°C

Temperature

Range: 18°C – 28°C

67%

Humidity

Moderate

55%

Rain Chance

Rain is likely — prepare gear

September

Typical race month

Usually on a Sunday

Conditions

In September, Medellín averages a high of about 28°C and a low of about 18°C, with rain of 1 mm or more on around 16 days of the month. The marathon starts at 05:00, in the coolest part of the day.

What to Wear

Light cap or visor

Shield from sun and heat

Sunscreen SPF 30+

23°C means sun exposure risk

Extra hydration plan

Increase fluid intake in heat

Hat with brim

Keep rain out of your eyes

Anti-chafe cream

Wet conditions increase chafing risk

Hydration Strategy

Before the Race

Hydrate aggressively in the 24 hours before. Aim for clear urine the morning of the race.

During the Race

Take water at every aid station. Consider sports drink for electrolytes. Don't wait until you're thirsty.

After the Race

Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.

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