The best times to visit Philadelphia for ideal weather are

March 12th to May 27th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Philadelphia Travel Info

Weather in Philadelphia

Temperature

Average temperatures in Philadelphia vary greatly. Considering humidity, temperatures feel nice some of the year, but often too hot in the summer and cold in the winter with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 18th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Philadelphia, the hottest months are August, July, and then June. See average monthly temperatures below. The warmest time of year is generally early August where highs are regularly around 94.9°F (34.9°C) with temperatures rarely dropping below 70.6°F (21.4°C) at night.

Philadelphia Temperatures (Fahrenheit)

Key
High
Average
Low

Philadelphia Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Philadelphia Perceived Temperature (F)

Key
High
Average
Low

Philadelphia Perceived Temperature (C)

Key
High
Average
Low

 

Average Philadelphia Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 59.4 44.4 32.9
Feb 63 47.4 34.6
Mar 72.7 56.7 42.7
Apr 79.2 63.9 49.9
May 85.2 71.1 57.8
Jun 92.1 78.7 66.8
Jul 92.5 79.3 69.2
Aug 93.1 79.4 68.8
Sep 88.5 74.5 63.1
Oct 79.1 63.2 49.8
Nov 69.2 52.8 39.7
Dec 63.3 49 37.9

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 15.2 6.9 0.5
Feb 17.2 8.6 1.4
Mar 22.6 13.7 5.9
Apr 26.2 17.7 9.9
May 29.6 21.7 14.3
Jun 33.4 25.9 19.3
Jul 33.6 26.3 20.7
Aug 33.9 26.3 20.4
Sep 31.4 23.6 17.3
Oct 26.2 17.3 9.9
Nov 20.7 11.6 4.3
Dec 17.4 9.4 3.3

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Philadelphia are October, September, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid October. For example, on the week of October 15th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late December with an average of 2 days of significant precipitation the week of December 24th.

When can you find snow in Philadelphia? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Philadelphia.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Philadelphia (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 23% 0 4.2
Feb 24% 0 5
Mar 21% 0 5
Apr 19% 0 5.2
May 17% 0 4
Jun 19% 0 3.9
Jul 22% 0 4.9
Aug 24% 0 5.3
Sep 16% 0 3.8
Oct 13% 0 3.1
Nov 18% 0 4.1
Dec 25% 0 6.8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 23 0 10.7
Feb 24 0 12.7
Mar 21 0 12.7
Apr 19 0 13.2
May 17 0 10.2
Jun 19 0 9.9
Jul 22 0 12.4
Aug 24 0 13.5
Sep 16 0 9.7
Oct 13 0 7.9
Nov 18 0 10.4
Dec 25 0 17.3

 

Humidity and Wind

Philadelphia has some very humid months, with other comfortably humid months. The least humid month is March (59.3% relative humidity), and the most humid month is December (70%).

Wind in Philadelphia is usually calm. The windiest month is February, followed by April and March. February’s average wind speed of around 5.9 knots (6.8 MPH or 11 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late February and early March where average top sustained speeds reach 14.5 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Philadelphia.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 5.4 Light breeze 12.1 Significant breeze
Feb 5.9 Light breeze 13.1 Significant breeze
Mar 5.7 Light breeze 12.8 Significant breeze
Apr 5.8 Light breeze 13.1 Significant breeze
May 4.5 Light breeze 11.8 Significant breeze
Jun 3.7 Barely noticeable 11.6 Significant breeze
Jul 3.6 Barely noticeable 11.3 Significant breeze
Aug 3.4 Barely noticeable 10.9 Gentle breeze
Sep 3.6 Barely noticeable 10 Significant breeze
Oct 4 Light breeze 10.3 Gentle breeze
Nov 4.5 Light breeze 10.8 Significant breeze
Dec 5.4 Light breeze 11.7 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 61.8%
Feb 60.3%
Mar 59.3%
Apr 61.3%
May 65.3%
Jun 65.6%
Jul 69.8%
Aug 68.7%
Sep 68.5%
Oct 66.2%
Nov 66%
Dec 70%

 

Is it Safe to Travel to Philadelphia?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Philadelphia, MS, US is July, followed by June and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Philadelphia in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 50.4 in November means 50.4% of the tourists vs. July.

 

 

Overall Philadelphia Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 88.9°F (31.6°C) and 66.4°F (19.1°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 7 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see moderate precipitation with 6 to 7 days of precipitation per month. June – August is the busiest season for tourism in Philadelphia, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 90°F (32.2°C) and 64.9°F (18.3°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 4 to 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Philadelphia to be enjoyable for warm weather travelers. The average high during this season is between 66.5°F (19.2°C) and 58°F (14.4°C). On average, it rains or snows a fair amount: 7 to 8 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travel› the United States › Philadelphia, MS, US