Philadelphia Climate and Average Weather
Climate of Philadelphia: average temperatures, rainfall and seasons month by month.
Climate in Philadelphia month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 38° | 25° | 3,5 in | ★★☆☆☆ |
| February | 42° | 27° | 2,4 in | ★★☆☆☆ |
| March | 57° | 38° | 5,3 in | ★★★☆☆ |
| April | 66° | 46° | 3,3 in | ★★★★☆ |
| May | 73° | 56° | 5,0 in | ★★★★☆ |
| June | 85° | 66° | 3,1 in | ★★★★☆ |
| July | 88° | 71° | 4,5 in | ★★★★☆ |
| August | 84° | 67° | 5,0 in | ★★★★☆ |
| September | 78° | 62° | 2,4 in | ★★★★☆ |
| October | 69° | 51° | 1,8 in | ★★★★☆ |
| November | 56° | 40° | 2,6 in | ★★★☆☆ |
| December | 44° | 31° | 4,4 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
Recent extremes in Philadelphia
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Philadelphia compares with nearby places
Annual averages, and the difference against Philadelphia.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Philadelphia County | 0 mi | 56°F | about the same | 43 in |
| New Jersey | 28 mi | 56°F | about the same | 41 in |
| Delaware | 58 mi | 57°F | +33°F warmer | 43 in |
| Staten Island | 69 mi | 55°F | about the same | 47 in |
| Newark Liberty International Airport | 73 mi | 55°F | 33°F cooler | 49 in |
Climate by airport in Philadelphia
1 airports mapped in this atlas
Climate by zip / postal code in Philadelphia
1 zip and postal codes mapped in this atlas
Best time to visit Philadelphia
Go in June, July, September and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What this means for Philadelphia
Today is slightly cooler than average for September. The forecast high of 74°F is 3.6°F below the 78°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 80°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 72°F, so mornings feel nothing like afternoons
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
Philadelphia is a city in Pennsylvania. Philadelphia is known for Liberty Bell and cheesesteaks. It has a population of about 1.6 million.
Right now it is 65°F (19°C) in Philadelphia with clear. It feels like 68°F. Today runs from 62°F to 74°F. Chance of precipitation is 0%. Sightseeing conditions score 9.8/10 - excellent - go now.
The best time to visit Philadelphia is June, July, September and October. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 88°F, while January is the coldest with lows near 25°F.
The closest major airport is Philadelphia International Airport (PHL), about 7 mi away. Nearby highlights include Statue of Liberty (UNESCO World Heritage Site), Statue of Liberty, Hudson River and Empire State Building.
In plain terms. Today is slightly cooler than average for September. The forecast high of 74°F is 3.6°F below the 78°F typical for this month. The best window to be outside is roughly 10 AM to 1 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Philadelphia today at 9.9/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Philadelphia
| Type | City |
|---|---|
| State | Pennsylvania |
| Country | United States |
| Continent | North America |
| Coordinates | 39°57′9.4″N 75°9′54.7″W (39.9526, -75.1652) |
| Population | 1.570.000 |
| Known for | Liberty Bell and cheesesteaks |
| Local time | 11:36 PM (UTC-04:00) |
| Best months | June, July, September and October |
| Climate | Continental |
Weather map for Philadelphia
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Philadelphia
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Philadelphia?
Philadelphia is a city in Pennsylvania. Its coordinates are 39.9526, -75.1652. It lies in North America.
What is the weather like in Philadelphia right now?
It is currently 65°F (19°C) with clear. Humidity is 87% and wind is 4 mph.
When is the best time to visit Philadelphia?
June, July, September and October offer the most comfortable conditions in Philadelphia, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Philadelphia in?
Philadelphia observes America/New_York (UTC-04:00). The local time is 11:36 PM.
How many people live in Philadelphia?
Philadelphia has a population of approximately 1.6 million.
What is the nearest airport to Philadelphia?
The closest airports are Philadelphia International Airport (PHL), 7 mi away, Newark Liberty International Airport (EWR), 73 mi away and John F. Kennedy International Airport (JFK), 87 mi away.
What are the top things to do in Philadelphia?
Popular options include Statue of Liberty (UNESCO World Heritage Site), Statue of Liberty, Hudson River, Empire State Building, Times Square and Central Park.
What places are in Philadelphia?
Philadelphia covers 2 places in this atlas, including Philadelphia International Airport and ZIP Code 19103.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated September 30, 2026 at 11:36 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
