Philadelphia weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Fair
Best time to visit: April – June, August – October
What is the weather like in Philadelphia in March?
In March, Philadelphia is cool: daytime highs average 11 °C, and nights cool down to about 1 °C. The sea averages 5.4 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 100 mm in total. Snow falls on about 2 days. All in all, March is a so-so month for a holiday in Philadelphia.
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 26 | 43 | 74 |
| Day | 7° | 11° | 17° |
| Night | −3° | 1° | 7° |
| Sea | 3° | 5° | 10° |
| Sun | 5 h | 6 h | 7 h |
| Rain days | 9 | 10 | 11 |
More details for March
- Daylight
- 11 h 52 min07:14 – 19:06
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 58 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 2 days1 cm or more of fresh snowAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 50 %33 %
- Sunshineweight 20 %48 %
- Few rainy daysweight 30 %56 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in March
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Philadelphia in March: quick answers
Is Philadelphia hot in March?
No. In March, Philadelphia is cool: daytime highs average 11 °C and nights drop to about 1 °C.
Can you swim in Philadelphia in March?
Only if you don't mind cold water: in March the sea averages just 5.4 °C. Comfortable swimming is possible from June to September.
Does it rain much in Philadelphia in March?
Rain is frequent, with about 10 rainy days and 100 mm in total.
Philadelphia month by month
The whole year in PhiladelphiaAll destinations: USAWhere to go in MarchSea temperature in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences