Weather
Climate Avg| Time | Temp | Dew Pt | Humidity | Wind | Conditions |
|---|---|---|---|---|---|
| Start | 70.4 – 70.4°F | 65° Steamy | 84 – 84% | 10 mph SE | Partly cloudy |
| 8:00 AM | 70.6 – 70.6°F | 65° Steamy | 83 – 83% | 10 mph SE | Partly cloudy |
| 9:00 AM | 54 – 72.3°F | 54° Nice | 77 – 79% | 8 mph W | Clear sky |
| 10:00 AM | 61 – 73.9°F | 59° OK | 72 – 73% | 8 mph SW | Partly cloudy |
| 11:00 AM | 65 – 75.3°F | 60° Sticky | 69 – 69% | 9 mph SW | Partly cloudy |
| Finish | 66.4 – 76.4°F | 61° Sticky | 67 – 72% | 11 mph SW | Partly cloudy |
Based on 3-year average for this date. Real forecast available in 183 days.
Elevation Profile
Course Stats
Mile Splits
| Mile | Grade |
|---|---|
| 1 | -0.0% |
| 2 | -0.1% |
| 3 | +0.0% |
| 4 | -0.0% |
| 5 | +0.1% |
| 6 | +0.0% |
| 7 | +0.0% |
| 8 | -0.0% |
| 9 | -0.0% |
| 10 | -0.0% |
| 11 | +0.1% |
| 12 | +0.2% |
| 13 | -0.1% |
| 14 | +0.0% |
| 15 | +0.2% |
| 16 | -0.3% |
| 17 | +0.0% |
| 18 | +0.2% |
| 19 | -0.2% |
| 20 | +0.0% |
| 21 | +0.1% |
| 22 | +0.1% |
| 23 | -0.1% |
| 24 | +0.1% |
| 25 | -0.0% |
| 26 | -0.1% |
| 27 | +0.1% |
RM Difficulty Index
Race-Day Weather History
Race-morning conditions on this date over the past 6 years: median 64°F with a 56°F dew point and 10 mph wind. 4 of 6 years were warm enough to slow race pace.
| Year | Temp | Dew Pt | Wind | Rain | Sky |
|---|---|---|---|---|---|
| 2025 | 72°F | 65°F | 10 mph | — | Partly cloudy |
| 2024 | 53°F | 46°F | 8 mph | — | Clear |
| 2022 | 49°F | 35°F | 9 mph | — | Clear |
| 2021 | 72°F | 58°F | 14 mph | — | Partly cloudy |
| 2020 | 65°F | 60°F | 1 mph | — | Partly cloudy |
| 2018 | 62°F | 53°F | 12 mph | — | Partly cloudy |
Morning conditions (race window) on the Miami Marathon calendar date each year, from the ERA5 reanalysis archive — the race’s usual slot, not necessarily each edition’s exact day.
Miami Marathon Pace Calculator & Race Plan
Miami is flat. 31 meters of gain flat. The challenge is entirely about heat and humidity. January in Miami means 70°F+ with tropical humidity, and the course runs across several exposed causeways with no shade.
This is a course where weather adjustment matters more than elevation. Our splits show you what that humidity actually costs per mile.
Miami Marathon FAQ
When is the next Miami Marathon?›
The next Miami Marathon is on Sunday, January 31, 2027.
How long is the Miami Marathon?›
The Miami Marathon is 26.2 miles (42.195 km), the standard marathon distance. It runs in Miami, FL.
How much elevation gain does the Miami Marathon have?›
The Miami Marathon has about 102 ft (31 m) of climbing and 100 ft of descent, with a maximum grade of 0.26%.
Is the Miami Marathon flat, downhill, or hilly?›
The Miami Marathon starts and finishes at roughly the same elevation (net +1 m). With 102 ft of total climbing along the way, it's a fast, flat course.
How hard is the Miami Marathon?›
Runner's Math scores the Miami Marathon 26/100 (Moderate) — #34 of 38 marathon courses in our library, ranked by modeled time cost. The profile costs about 0:11 versus a flat course for a runner at 4:00-marathon pace.
What's the weather usually like at the Miami Marathon?›
Over the past 6 years on this date, median race-morning conditions were 64°F with a 56°F dew point and 10 mph wind. 4 of 6 years were warm enough to slow race pace.