Which is the hottest month in Pennsylvania?

The hottest time of year in Philadelphia, Pennsylvania is normally July. Expect maximum daytime temperatures to reach 30°C with high heat and humidity.

Best time to visit Pennsylvania

Q: When is the best time to visit Pennsylvania?

The best time to visit Pennsylvania (Philadelphia) is June based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Q: Which month has the most rain in Pennsylvania?

In terms of rainfall, July is usually the wettest month in Philadelphia, Pennsylvania with 111mm on average. There are normally 9 days in July with some rain.

Q: When is it sunniest in Pennsylvania?

The sunniest time of year in Philadelphia, Pennsylvania is normally July with bright sunshine on average for 61% of daylight hours; that's 9 hours of sunshine per day.

Find the best time to visit Pennsylvania and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Pennsylvania by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Top Pennsylvania destinations

Below are the temperatures expected today at popular countries, regions and places in Pennsylvania. Select a destination to compare today's forecast with average weather conditions.

All Pennsylvania destinations

When is the best time to visit Pennsylvania?

The best time to visit Pennsylvania (Philadelphia) is June based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

1
Jan
1.5
Feb
1.5
Mar
2
Apr
4
May
4.5
Jun
4
Jul
4
Aug
4
Sep
2.5
Oct
1
Nov
0.5
Dec

Change criteria

Max Day Temperature (°C)

3
Jan
5
Feb
11
Mar
17
Apr
23
May
28
Jun
30
Jul
29
Aug
25
Sep
19
Oct
13
Nov
6
Dec

Hours of Sunshine (daily)

5
Jan
6
Feb
7
Mar
7
Apr
8
May
9
Jun
9
Jul
8
Aug
7
Sep
6
Oct
5
Nov
4
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Pennsylvania (Philadelphia) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

More about Pennsylvania

Explore our complete guide to Pennsylvania with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Pennsylvania.

Essential travel guide
Travel guidance
Travel health
Travel features
Top travel deals
FAQs

Pennsylvania travel guide - essential info

Below is a beginner's guide to Pennsylvania with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.

Pennsylvania - quick facts
Flight time^✝	8 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes

Why visit Pennsylvania?

Considering a holiday to the Pennsylvania? Here are some of the very good reasons it makes such a wonderful holiday destination such as for its culture to ensure you get the most out of your 2025/2026 escape.

Culture

Pennsylvania tourist information

Visit Pennsylvania

✝ = Typical flight time from the UK and visa requirements for UK travellers.

Travelling to Pennsylvania?
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Pennsylvania travel guidance

Check the latest travel guidance and advice on visiting Pennsylvania from official government sources (in english) from around the world including entry requirements and travel restrictions.

UK traveller advice for the Pennsylvania - UK FCDO
Irish traveller advice for the Pennsylvania - Department of Foreign Affairs, Ireland
Canadian travel advice for the Pennsylvania - Government of Canada
Safe travel advisories for the Pennsylvania - Ministry of Foreign Affairs, New Zealand
Smarter traveller advice for the Pennsylvania - Department of Foreign Affairs, Australia

Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Pennsylvania.

Note: UK FCDO - UK Foreign, Commonwealth & Development Office

Pennsylvania travel health

Find out more about staying safe when travelling to Pennsylvania with the latest guidance on required vaccinations and recommended medication to take with you.

Vaccines & medicines for the Pennsylvania - CDC
Health & vaccinations for the Pennsylvania - TravelHealthPro, NaTHNac
How to stay safe & healthy in the Pennsylvania - Fit for Travel, Public Health Scotland

Check out the general travel tips for staying safe and healthy in Pennsylvania, risks of preventable diseases and what to pack.

Note: CDC - Centers for Disease Control and Prevention

Pennsylvania travel features

Do you want to learn more about Pennsylvania? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Pennsylvania.

8 reasons to visit Pittsburgh, USA

Pennsylvania FAQs

Read our frequently asked questions about travelling to Pennsylvania including the current entry restrictions, driving side, electrical plugs used and much more.

Which month has the most rain in Pennsylvania?

In terms of rainfall, January is usually the wettest month in Philadelphia, Pennsylvania with 0mm on average. There are normally no days in January with some rain.

When is it sunniest in Pennsylvania?

The sunniest time of year in Philadelphia, Pennsylvania is normally January with bright sunshine on average for 0% of daylight hours; that's 0 hours of sunshine per day.

When is the sea warmest in Pennsylvania?

The sea is usually at its warmest in Philadelphia, Pennsylvania in January when the water temperature reaches 0°C.

What is the flight time to Pennsylvania from the UK?

The flight time to Pennsylvania from the UK is typically 8 hours.

What is the time difference between Pennsylvania and the UK?

The time difference between Pennsylvania and the UK is UK time-5 hours.

What is the main language spoken in Pennsylvania?

The main language spoken in Pennsylvania is English.

Learn a language for Pennsylvania with Rosetta Stone^*, Busuu^* and Rocket Languages^*.

What is the currency in Pennsylvania?

The currency in Pennsylvania is the US Dollar (USD).

Send money to Pennsylvania with TransferGo^*.

Which plugs are used in Pennsylvania?

Pennsylvania uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in Pennsylvania?

They drive on the right side of the road in Pennsylvania.

Find out more about driving in USA with International Drivers Association^*.

Do you need a visa for Pennsylvania?

Yes, UK passport holders do need a visa to enter Pennsylvania.

Check USA visa requirements for all passport holders with VisaHQ^*.

Pennsylvania travel deals

Holidays to Pennsylvania

Check out the latest deals, discount codes and special offers on holidays to Pennsylvania in 2025/2026. Pay low deposits and save with last minute holiday availability and free kids places.