2027 Miami Marathon - Jan 31

2027 Miami Marathon - Jan 31 Countdown

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Registration opens 2026-08 View official registration →

Race Information

Race2027 Miami Marathon - Jan 31
CityMiami
Date2027-01-31 at 06:00
Field Size~3,251 runners
Time Limit7 hours
Cutoff pace9:57/km
TimezoneAmerica/New_York
Official SiteLife Time
RegistrationRegistration opens 2026-08 · Official Site

Race Day Weather

Average Temperature21.6°C / 71°F
Humidity76%
Wind25.9 km/h
Rain Chance28%
Typical ConditionsWarm, humid South Florida winter dawn — mild on paper, but the sun and humidity build fast on the open causeways

What to Prepare: Even in late January, Miami starts mild around 68°F / 20°C with humidity near 80%, and the exposed causeway and Rickenbacker crossings heat up quickly once the sun is up. Treat this as a warm-weather race, not a cold-weather PR: dress in a singlet and shorts, take water and electrolytes at every aid station, slow your early causeway pace by 10–20 seconds per mile, and respect the heat far more than the modest elevation.

Based on historical averages for race week. Use our Weather Score Calculator and What to Wear Guide for personalized advice.

Wind Impact on Race Day

Wind at 25.9 km/h can affect your marathon pace by 5-15 seconds per kilometer. Headwinds slow you down exponentially — a 20 km/h wind costs more than twice a 10 km/h wind.

Calculate your wind-adjusted pace →

Race-Week Climate

Based on 20 years of race-week weather (2005-2024), MERRA-2 reanalysis

Cooler Typical Warmer
Temperature 18.3°C 22.2°C 24.1°C
Dew point 11.6°C 17.6°C 21.1°C
Wet-day chance: 28% Runnability: 60/100

Data: NASA POWER (MERRA-2 reanalysis), NASA Langley Research Center

Course Profile

Course TypeCity loop
Elevation Gain77m
TerrainRoad (flat city streets and causeway bridges, exposed water crossings)
ProfileA flat, fast, pancake-flat South Florida loop built for a warm-weather PR — total climbing is only about +254 ft (77 m), almost all of it from a few causeway bridges runners hit early when legs are fresh. The race starts at 6:00 a.m. in downtown Miami, crosses the MacArthur Causeway over Biscayne Bay to Miami Beach and South Beach at sunrise, returns via the scenic Venetian Causeway, then works through the Brickell financial district, an exposed out-and-back on the Rickenbacker Causeway, and a tree-lined Coconut Grove out-and-back before finishing at Bayfront Park. The MacArthur Causeway, with a gentle 3.3% grade over about a third of a mile, is the only real climb on the route. The course is USATF-certified and a Boston qualifier, and the terrain itself is ideal for a fast time — the limiting factor is almost never the hills but the warmth and humidity, plus sun and crosswind exposure on the open bridge crossings.
Boston QualifierYes — Check your BQ time

Prepare for 2027 Miami Marathon - Jan 31

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Featured In

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Frequently Asked Questions

When is the 2027 Miami Marathon and what time does it start?

The 2027 Life Time Miami Marathon is on Sunday, January 31, 2027, with the full marathon and half marathon starting together at 6:00 a.m. ET in downtown Miami near Bayside / Bayfront Park. The early start is deliberate — it gets runners across the exposed causeways before the South Florida sun and humidity peak.

Is the Miami Marathon flat and good for a Boston qualifier or PR?

Yes — the course is genuinely flat and USATF-certified as a Boston qualifier, with only about 254 ft (77 m) of total elevation gain. The terrain is one of the flattest in the country. The real obstacle to a fast time is not the hills but the warmth and humidity, so most runners run slightly conservative early and treat it as a warm-weather PR attempt rather than a cool-weather one.

How hard is the Miami Marathon and what makes it challenging?

Physically the route is easy underfoot, but the heat and humidity are the defining challenge. Race-day starts are typically mild but humid, and the open MacArthur, Venetian and Rickenbacker causeways offer little shade and full sun once it rises, with possible crosswinds. The one short climb is the MacArthur Causeway bridge early on. Manage hydration, electrolytes and early pace and the rest of the course rewards you.

What is the course route for the Miami Marathon?

The 26.2-mile loop starts in downtown Miami, crosses the MacArthur Causeway to Miami Beach and South Beach, returns over the Venetian Causeway, passes through the Brickell financial district, includes an out-and-back on the Rickenbacker Causeway, then a tree-lined Coconut Grove out-and-back, finishing at Bayfront Park. The half marathon splits off after the South Beach section.

What should I wear for the Miami Marathon?

Dress for warm, humid weather, not winter. A breathable singlet and shorts, a visor or cap, and sunscreen are the right call even at a 6:00 a.m. start, because temperatures sit around 68°F / 20°C with high humidity and climb through the morning. Skip throwaway layers most cold-weather races use — you will overheat. Plan to take water and electrolytes at every aid station.

Is there a time limit for the Miami Marathon?

Yes. The official course time limit is 7 hours, which works out to about a 16-minute-per-mile pace. After 7 hours the roads reopen to traffic in stages and on-course support — aid stations, marshals, medical and timing — is withdrawn, and any remaining participants must follow normal pedestrian rules on sidewalks and curbs.

How do I register for the Miami Marathon and does it sell out?

Registration is handled through the official site at themiamimarathon.com. The marathon is popular and regularly sells out, with general entry recently priced around $210 plus VIP and travel-package tiers, and a waitlist when general spots fill. Life Time members get early access. Register early — spots after a sellout only open when registered runners drop out.

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