Winter
Dec → Feb5 to 8°
nights -3 to 0°
- 8 rainy days · 84 mm
When is the best time to visit Philadelphia?
- Jan5°not recommended
- Feb7°not recommended
- Mar12°fair
- Apr18°recommended
- May24°recommended
- Jun28°recommended
- Jul31°fair
- Aug30°fair
- Sep26°recommended
- Oct20°recommended
- Nov13°fair
- Dec8°not recommended
RecommendedFairNot recommended· afternoon temperature
The weather in Philadelphia, month by month
The table of averages, month by month
| Month | High | Low | Rainfall | Rainy days | Best |
|---|---|---|---|---|---|
| January | 5° | -3° | 80 mm | 8 d | |
| February | 7° | -2° | 70 mm | 7 d | |
| March | 12° | 1° | 101 mm | 8 d | |
| April | 18° | 7° | 88 mm | 8 d | ✓ |
| May | 24° | 12° | 85 mm | 8 d | ✓ |
| June | 28° | 18° | 103 mm | 8 d | ✓ |
| July | 31° | 21° | 111 mm | 8 d | |
| August | 30° | 20° | 109 mm | 7 d | |
| September | 26° | 16° | 112 mm | 7 d | ✓ |
| October | 20° | 10° | 88 mm | 7 d | ✓ |
| November | 13° | 4° | 74 mm | 7 d | |
| December | 8° | 0° | 101 mm | 8 d |
The four seasons in Philadelphia, in figures
What the 2015-2024 averages (Philadelphia Airport) show, season by season, to compare at a glance instead of reading twelve rows of a table.
Spring
Mar → May12 to 24°
nights 1 to 12°
- 8 rainy days · 91 mm
Summer
Jun → Aug28 to 31°
nights 18 to 21°
- 8 rainy days · 108 mm
Autumn
Sep → Nov13 to 26°
nights 4 to 16°
- 7 rainy days · 91 mm
Book early for April to June and September to October
The timing is right, so it is right for everyone: in these months the best places to stay and the small-group tours go first. Here is where to start.
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Daylight in Philadelphia, month by month
The time between sunrise and sunset, from shortest to longest. Not to be confused with the sunshine hours in the table above, which count clear skies. In June there are 14h59 of daylight, in December 9h21, a difference of 5h38.
9h38Jan
10h38Feb
11h50Mar
13h13Apr
14h22May
14h59Jun
14h44Jul
13h44Aug
12h24Sep
11h04Oct
9h55Nov
9h21Dec
Calculated for the latitude of the reference point "Philadelphia Airport" (39.87°). Values on the 15th of each month, local solar time.
What to do in Philadelphia, month by month
What to see and do
| Activity | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sightseeing & walks | ||||||||||||
| Long days |
favourablewith compromisesunfavourable
- Sightseeing & walks: March, April, May, June, July, August, September, October, November, December
- Long days: May, June, July
Grid derived from the climate averages (temperature, rainfall), not from an opinion.
Travelling off-peak
Month by month, in detail
January
Not recommended5°-3° at night
- 80 mm · 8 d
Low season, lower prices
February
Not recommended7°-2° at night
- 70 mm · 7 d
Low season, lower prices
March
Fair12°1° at night
- 101 mm · 8 d
Low season, lower prices
April
Recommended18°7° at night
- 88 mm · 8 d
Busy, without the crush
May
Recommended24°12° at night
- 85 mm · 8 d
Busy, without the crush
June
Recommended28°18° at night
- 103 mm · 8 d
Busy, without the crush
July
Fair31°21° at night
- 111 mm · 8 d
Busy, without the crush
August
Fair30°20° at night
- 109 mm · 7 d
Busy, without the crush
September
Recommended26°16° at night
- 112 mm · 7 d
Busy, without the crush
October
Recommended20°10° at night
- 88 mm · 7 d
Busy, without the crush
November
Fair13°4° at night
- 74 mm · 7 d
Low season, lower prices
December
Not recommended8°0° at night
- 101 mm · 8 d
Quiet, then the holidays
Read the twelve months in detail
January. Deep winter: 5 °C at the warmest of the day, -3 °C at night. Expect 8 days of rain in the month (80 mm). Low season: fewer people, lower prices.
February. Deep winter: 7 °C at the warmest of the day, -2 °C at night. Rain stays light: 70 mm over 7 days. Low season: fewer people, lower prices.
March. Cool: 12 °C at best, 1 °C at night. Expect 8 days of rain in the month (101 mm). Low season: fewer people, lower prices.
April. Mild, 18 °C in the afternoon and 7 °C early in the morning. Expect 8 days of rain in the month (88 mm). Busy season, without the crush.
May. Mild, 24 °C in the afternoon and 12 °C early in the morning. Expect 8 days of rain in the month (85 mm). Busy season, without the crush.
June. 28 °C in the afternoon and 18 °C at night. Expect 8 days of rain in the month (103 mm). Busy season, without the crush.
July. 31 °C in the afternoon and 21 °C at night. Expect 8 days of rain in the month (111 mm). Busy season, without the crush.
August. 30 °C in the afternoon and 20 °C at night. Rain stays light: 109 mm over 7 days. Busy season, without the crush.
September. 26 °C in the afternoon and 16 °C at night. Rain stays light: 112 mm over 7 days. Busy season, without the crush.
October. Mild, 20 °C in the afternoon and 10 °C early in the morning. Rain stays light: 88 mm over 7 days. Busy season, without the crush.
November. Cool: 13 °C at best, 4 °C at night. Rain stays light: 74 mm over 7 days. Low season: fewer people, lower prices.
December. Cool: 8 °C at best, 0 °C at night. Expect 8 days of rain in the month (101 mm). Quiet at the start of the month, then busier as the holidays approach.
Same season, other ideas
Their best time overlaps with this one: worth comparing before you book.
Frequently asked questions
When is the best time to visit Philadelphia?
April to June and September to October: over these months, average highs range from 18 to 28 °C, with 8 days of rain a month on average (2015-2024 averages, Philadelphia Airport).
Which month should you avoid in Philadelphia?
December: it is the wettest of the months to avoid, with 101 mm over 8 days of rain on average over 2015-2024 at the reference point (Philadelphia Airport).
What is the hottest month in Philadelphia?
July, with 31 °C on average in the afternoon and 21 °C at night. 2015-2024 averages (Philadelphia Airport).
What is the coldest month in Philadelphia?
January, with 5 °C at best during the day and -3 °C at night. 2015-2024 averages (Philadelphia Airport).
What is the driest month in Philadelphia?
February: 70 mm over 7 days of rain, against 112 mm in September, the wettest month.
Does it get cold at night in Philadelphia?
The gap between day and night reaches 12 °C in May: 24 °C in the afternoon, 12 °C at dawn. Pack an extra layer, even in high season.
Plan this trip
📒 The free printable Philadelphia guide: itinerary, map, where to sleep→
🧭 When to visit the American West: the country overview→
🗓️ Best time to visit: all our destinations→
Compare with other destinations
Photos: Mys 721tx / CC BY-SA 3.0 (Wikimedia Commons) · Kreuz und quer / CC0 (Wikimedia Commons) · Rhonda McCloughan (Pr41799) / CC BY-SA 4.0 (Wikimedia Commons) · ajay_suresh / CC BY 2.0 (Wikimedia Commons) · Warren LeMay from Cincinnati, OH, United States / CC0 (Wikimedia Commons) · Kbh3rd / CC BY-SA 3.0 (Wikimedia Commons) · Farragutful / CC BY-SA 4.0 (Wikimedia Commons)