Philadelphia in April
In April, Philadelphia averages 17°C (63°F) during the day and 7°C (44°F) at night, with frequent rain — about 17 days of the month see precipitation (106 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Expect daily rain or showers, often in heavy bursts.
April is one of the wetter and less comfortable months in Philadelphia. If your dates are flexible, consider a different time of year.
How April compares to the rest of the year in Philadelphia
April is in the middle of the year for warmth in Philadelphia (7th of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 1°C below the annual average (18°C). April runs 6°C warmer than March (11°C) and warms a further 5°C into May (23°C).
April sunrise & sunset in Philadelphia
Times shown for Philadelphia local time (America/New_York), calculated for the 15th of April. They shift by a few minutes day to day across the month.
Photography light in Philadelphia — April
Golden-hour and blue-hour windows for the 15th of April, in Philadelphia's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Philadelphia in April
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on April's tier (Shoulder) and Philadelphia's popularity.
Crowds & pricing — April in Philadelphia
Philadelphia is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — April in Philadelphia
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Philadelphia in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 5°C / 41°F | -3°C / 26°F | 83 mm | 14 | — |
| February | 7°C / 45°F | -2°C / 28°F | 96 mm | 14 | — |
| March | 11°C / 52°F | 1°C / 34°F | 101 mm | 15 | — |
| April | 17°C / 63°F | 7°C / 44°F | 106 mm | 17 | — |
| May | 23°C / 73°F | 13°C / 55°F | 108 mm | 17 | — |
| June | 28°C / 82°F | 18°C / 64°F | 107 mm | 17 | — |
| July | 30°C / 87°F | 21°C / 70°F | 123 mm | 19 | — |
| August | 29°C / 85°F | 20°C / 68°F | 106 mm | 18 | — |
| September | 26°C / 79°F | 17°C / 62°F | 101 mm | 14 | — |
| October | 20°C / 67°F | 11°C / 51°F | 106 mm | 15 | — |
| November | 13°C / 55°F | 4°C / 38°F | 79 mm | 11 | — |
| December | 8°C / 47°F | 0°C / 33°F | 111 mm | 12 | — |
Other cities with similar April weather
🌍 See the full ranked list of climate twins for Philadelphia in April →
Frequently asked questions
How hot is Philadelphia in April?
In April, Philadelphia averages a high of 17°C (63°F) and a low of 7°C (44°F) — generally mild and pleasant.
Does it rain a lot in Philadelphia in April?
April is quite rainy in Philadelphia, with about 17 rainy days on average.
Is April a good time to visit Philadelphia?
April is mild and pleasant but on the rainy side. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Philadelphia in April?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full April packing list for Philadelphia for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.