🇺🇸 Boise vs 🇵🇹 Lisbon
Weather Comparison
Current Weather Right Now
🇺🇸
Boise

60°F
Overcast Clouds
Feels like 58°F
H 62°F / L 57°F
Humidity: 48%
🇵🇹
Lisbon

75°F
Clear Sky
Feels like 73°F
H 76°F / L 72°F
Humidity: 34%
Climate Overview
Boise
Boise in the Treasure Valley has a semi-arid climate with hot, dry summers and cool winters. The city is in a rain shadow east of the Cascade-Sierra Nevada mountain chain, receiving only about 12 inches of precipitation annually. The Boise River and Greenbelt provide riparian cooling, while hot and dry conditions in summer can lead to significant wildfire smoke events from regional fires.
Lisbon
Mediterranean — hot dry summers, mild wet winters, abundant sunshine
Lisbon is one of Europe's sunniest capitals with 2,800+ hours of sunshine annually. Summers are hot and dry; winters are mild. The Atlantic coast provides cooling breezes. The 2017–2024 tourism boom makes summer extremely crowded.
Seasonal Comparison
| Season | 🇺🇸 Boise | 🇵🇹 Lisbon |
|---|---|---|
| Spring | — | 55–70°F March–May |
| Summer | — | 73–86°F June–August |
| Fall | — | 61–79°F September–November |
| Winter | — | 48–59°F December–February |
Boise vs Lisbon: Frequently Asked Questions
Does Boise or Lisbon have better weather?
Boise and Lisbon have very different climates. Boise in the Treasure Valley has a semi-arid climate with hot, dry summers and cool winters. The cit Lisbon: Mediterranean — hot dry summers, mild wet winters, abundant sunshine. The best city depends on your preferred season and temperature range.
When is the best time to visit Boise vs Lisbon?
Best time for Boise: spring and fall. Best time for Lisbon: April, May, October, November.