Guayaquil Marathon

Guayaquil, Ecuador · October 4, 2026
cloudy72°·76° high·Light·Rain possible
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Race Day Weather

cloudy
72°at start
78° high
Light
Dry

Warm start, chance of rain, high humidity

A warm 72°F start means heat management is critical — consider dialing back your goal pace by 10-20 sec/mi. Light winds shouldn't be a major factor for pacing. There's a chance of rain, so have a backup gear plan ready. High humidity (85%) will make it harder to cool down through sweat — increase fluid intake accordingly.

Race day forecast available in 6 days
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Pace Calculator

Distance: 26.2mi
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Race Info

The Guayaquil Marathon is Ecuador's oldest World Athletics-certified marathon, first run in 2005 and held every year on the first Sunday of October during the city's independence-week celebrations. The 42.195-kilometer course starts and finishes outside the Palacio Municipal at the corner of República de Guayaquil and Pichincha streets, near the Malecón 2000 waterfront. A 12K, a 21K half marathon and a 5K run alongside it, all starting at 4:00 AM. The race is a Boston Marathon qualifier and draws more than 2,000 runners from Ecuador and neighboring countries such as Colombia, Peru and Venezuela.

Area Map

Course Map

FAQ

When is the 2026 Guayaquil Marathon?

The 2026 Guayaquil Marathon will be held on Sunday October 4, 2026.

Is the Guayaquil Marathon a Boston Marathon Qualifier?

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

What will the weather be like for the 2026 Guayaquil Marathon?

The forecast calls for a high of 80°F and a low of 72°F with a 10% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 4 years of data
Avg Temp
77°F
L:73° H:84°
RunScore
3
Conditions
Rain Freq
25%
1 of 4 yrs
Wind8mph
Dew67°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-night
72°/82°Light
3
2024
partly-cloudy-night
73°/84°-
3
2023
partly-cloudy-night
78°/88°-
2
2022
partly-cloudy-night
70°/81°-
4