🇺🇸 Philadelphia vs 🇬🇧 London

Weather Comparison

Current Weather Right Now

🇺🇸

Philadelphia

moderate rain

59°F

Moderate Rain

Feels like 59°F

H 61°F / L 56°F

Humidity: 93%

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London

overcast clouds

51°F

Overcast Clouds

Feels like 48°F

H 52°F / L 49°F

Humidity: 48%

Climate Overview

🇺🇸

Philadelphia

Philadelphia in the Delaware River valley has a humid subtropical climate transitioning to continental. The city's urban heat island is intense — dense rowhouse neighborhoods without significant green space are among the East Coast's most heat-vulnerable. The Delaware and Schuylkill Rivers provide some humidity while the Piedmont hills to the north create varied terrain.

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London

Temperate oceanic — mild, cloudy, and notoriously changeable year-round

Best monthsJune, July, August, September
AvoidNovember, December, January
Annual rain23 inches (585 mm) — spread evenly year-round

London's weather is famously mild but grey. It rarely gets very hot or very cold, but expect cloud cover most of the year. Summer (June–August) brings the best sunshine and warmth. Rain falls year-round but rarely in heavy bursts.

Seasonal Comparison

Season🇺🇸 Philadelphia🇬🇧 London
Spring

45–61°F

March–May

Summer

63–73°F

June–August

Fall

49–61°F

September–November

Winter

38–46°F

December–February

Philadelphia vs London: Frequently Asked Questions

Does Philadelphia or London have better weather?

Philadelphia and London have very different climates. Philadelphia in the Delaware River valley has a humid subtropical climate transitioning to continent London: Temperate oceanic — mild, cloudy, and notoriously changeable year-round. The best city depends on your preferred season and temperature range.

When is the best time to visit Philadelphia vs London?

Best time for Philadelphia: spring and fall. Best time for London: June, July, August, September.

More Comparisons

🇺🇸 Philadelphia Weather →🇬🇧 London Weather →