🇺🇸 Boise vs 🇵🇹 Lisbon

Weather Comparison

Current Weather Right Now

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Boise

overcast clouds

60°F

Overcast Clouds

Feels like 58°F

H 62°F / L 57°F

Humidity: 48%

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Lisbon

clear sky

75°F

Clear Sky

Feels like 73°F

H 76°F / L 72°F

Humidity: 34%

Climate Overview

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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.

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Lisbon

Mediterranean — hot dry summers, mild wet winters, abundant sunshine

Best monthsApril, May, October, November
AvoidJuly, August (extreme heat and crowds)
Annual rain27 inches (686 mm) — mostly November–March

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.

More Comparisons

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