Weather
Climate Avg| Time | Temp | Dew Pt | Humidity | Wind | Conditions |
|---|---|---|---|---|---|
| Start | 51.5 – 70.4°F | 53° Nice | 76 – 84% | 8 mph W | Clear sky |
| 8:00 AM | 50.7 – 70.6°F | 53° Nice | 77 – 83% | 8 mph W | Partly cloudy |
| Finish | 53.6 – 72.3°F | 54° Nice | 78 – 80% | 8 mph W | Clear sky |
Based on 3-year average for this date. Real forecast available in 138 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% |
RM Difficulty Index
Race-Day Weather History
Race-morning conditions on this date over the past 9 years: median 66°F with a 58°F dew point and 9 mph wind. 7 of 9 years were warm enough to slow race pace.
| Year | Temp | Dew Pt | Wind | Rain | Sky |
|---|---|---|---|---|---|
| 2025 | 72°F | 65°F | 10 mph | — | Partly cloudy |
| 2023 | 75°F | 66°F | 6 mph | — | Partly cloudy |
| 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 |
| 2019 | 66°F | 62°F | 7 mph | 0.06" | Drizzle |
| 2018 | 62°F | 53°F | 12 mph | — | Partly cloudy |
| 2017 | 54°F | 37°F | 9 mph | — | Partly cloudy |
| 2016 | 67°F | 56°F | 2 mph | — | Partly cloudy |
Morning conditions (race window) on the Miami Half Marathon calendar date each year, from the ERA5 reanalysis archive — the race’s usual slot, not necessarily each edition’s exact day.
Miami Half Marathon Pace Calculator & Race Plan
The Miami Half is dead flat and hot. All the same humidity challenges as the full marathon, just compressed into 13.1 miles. The causeways are exposed and there's no shade.
Weather adjustment is the whole game here. Our splits show you what the humidity costs.
Miami Half Marathon FAQ
When is the next Miami Half Marathon?›
The next Miami Half Marathon is on Sunday, January 31, 2027.
How long is the Miami Half Marathon?›
The Miami Half Marathon is 13.1 miles (21.097 km), the standard half marathon distance. It runs in Miami Beach, FL.
How much elevation gain does the Miami Half Marathon have?›
The Miami Half Marathon has about 37 ft (11 m) of climbing and 34 ft of descent, with a maximum grade of 0.18%.
Is the Miami Half Marathon flat, downhill, or hilly?›
The Miami Half Marathon starts and finishes at roughly the same elevation (net +1 m). With 37 ft of total climbing along the way, it's a fast, flat course.
How hard is the Miami Half Marathon?›
Runner's Math scores the Miami Half Marathon 25/100 (Moderate) — #16 of 16 half marathons in our library, ranked by modeled time cost. The profile costs about 0:04 versus a flat course for a runner at 4:00-marathon pace.
What's the weather usually like at the Miami Half Marathon?›
Over the past 9 years on this date, median race-morning conditions were 66°F with a 58°F dew point and 9 mph wind. 7 of 9 years were warm enough to slow race pace.