Weather
Climate Avg| Time | Temp | Dew Pt | Humidity | Wind | Conditions |
|---|---|---|---|---|---|
| Start | 48 – 55°F | 51° Nice | 96 – 98% | 6 mph NW | Rain |
| 8:00 AM | 47.3 – 54.1°F | 50° Nice | 96 – 96% | 7 mph N | Drizzle |
| 9:00 AM | 37 – 50°F | 40° Ideal | 76 – 97% | 9 mph W | Drizzle |
| 10:00 AM | 51.2 – 51.2°F | 49° Ideal | 93 – 93% | 7 mph NW | Partly cloudy |
| 11:00 AM | 53.6 – 53.6°F | 50° Nice | 87 – 87% | 8 mph NW | Partly cloudy |
| Finish | 56.8 – 56.8°F | 50° Nice | 77 – 77% | 9 mph NW | Partly cloudy |
Based on 3-year average for this date. Real forecast available in 113 days.
Elevation Profile
Course Stats
Mile Splits
| Mile | Grade |
|---|---|
| 1 | +0.1% |
| 2 | -0.1% |
| 3 | -0.2% |
| 4 | +0.0% |
| 5 | +0.2% |
| 6 | +0.2% |
| 7 | -0.2% |
| 8 | +0.7% |
| 9 | +0.1% |
| 10 | +0.8% |
| 11 | +0.3% |
| 12 | -0.5% |
| 13 | -0.3% |
| 14 | +0.5% |
| 15 | -0.2% |
| 16 | -1.4% |
| 17 | -0.1% |
| 18 | -0.0% |
| 19 | +0.7% |
| 20 | -0.2% |
| 21 | -0.1% |
| 22 | -0.2% |
| 23 | -0.1% |
| 24 | +0.0% |
| 25 | +0.0% |
| 26 | +0.0% |
| 27 | +1.3% |
RM Difficulty Index
Race-Day Weather History
Race-morning conditions on this date over the past 5 years: median 47°F with a 39°F dew point and 7 mph wind. Heat has rarely been a factor.
| Year | Temp | Dew Pt | Wind | Rain | Sky |
|---|---|---|---|---|---|
| 2025 | 48°F | 47°F | 6 mph | 0.19" | Rain |
| 2024 | 37°F | 30°F | 10 mph | — | Drizzle |
| 2023 | 53°F | 51°F | 7 mph | — | Partly cloudy |
| 2022 | 34°F | 21°F | 4 mph | — | Clear |
| 2019 | 47°F | 39°F | 9 mph | — | Partly cloudy |
Morning conditions (race window) on the Philadelphia Marathon calendar date each year, from the ERA5 reanalysis archive — the race’s usual slot, not necessarily each edition’s exact day.
Philadelphia Marathon Pace Calculator & Race Plan
Philly is a tale of two halves. The first half includes the Manayunk Wall, a short but steep climb around mile 9 that surprises people who assumed Philly was flat. The second half along the Schuylkill River is mostly flat and fast.
If you save some energy for the Wall and don't panic on the climb, the back half is set up for a strong finish. Our splits help you plan for exactly that.
Philadelphia Marathon FAQ
When is the next Philadelphia Marathon?›
The next Philadelphia Marathon is on Sunday, November 22, 2026.
How long is the Philadelphia Marathon?›
The Philadelphia Marathon is 26.2 miles (42.195 km), the standard marathon distance. It runs in Philadelphia, PA.
How much elevation gain does the Philadelphia Marathon have?›
The Philadelphia Marathon has about 437 ft (133 m) of climbing and 418 ft of descent, with a maximum grade of 1.41%.
Is the Philadelphia Marathon flat, downhill, or hilly?›
The Philadelphia Marathon starts and finishes at roughly the same elevation (net +6 m). With 437 ft of total climbing along the way, the profile rolls even though the net change is small.
How hard is the Philadelphia Marathon?›
Runner's Math scores the Philadelphia Marathon 35/100 (Moderate) — #18 of 38 marathon courses in our library, ranked by modeled time cost. The profile costs about 0:45 versus a flat course for a runner at 4:00-marathon pace.
What's the weather usually like at the Philadelphia Marathon?›
Over the past 5 years on this date, median race-morning conditions were 47°F with a 39°F dew point and 7 mph wind. Heat has rarely been a factor.