🇺🇸 Portland vs 🇬🇧 London
Weather Comparison
Current Weather Right Now
🇺🇸
Portland

43°F
Moderate Rain
Feels like 39°F
H 45°F / L 41°F
Humidity: 95%
🇬🇧
London

48°F
Overcast Clouds
Feels like 45°F
H 49°F / L 45°F
Humidity: 57%
Climate Overview
Portland
Portland is Maine's largest city on Casco Bay, with a maritime New England climate. The Atlantic provides moderation but Portland still experiences full nor'easter potential with heavy snow and powerful ocean storms. The Old Port's waterfront cobblestones and Victorian commercial blocks create a beautiful but exposed coastal setting. Summers are famously pleasant and increasingly popular.
London
Temperate oceanic — mild, cloudy, and notoriously changeable 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 | 🇺🇸 Portland | 🇬🇧 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 |
Portland vs London: Frequently Asked Questions
Does Portland or London have better weather?
Portland and London have very different climates. Portland is Maine's largest city on Casco Bay, with a maritime New England climate. The Atlantic pro 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 Portland vs London?
Best time for Portland: spring and fall. Best time for London: June, July, August, September.