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Best Time to Visit Portugal

Climate based on Lisbon • 2015–2024

The best overall weather in Portugal is in August, with average highs around 28°C. The single best 14-day window: Aug 10 - Aug 23. The hottest month is August (28°C highs) and the coolest is January (15°C highs).

Year-at-a-glance heatmap

Each cell is colored by the typical daytime high for that day. Hover for rainfall and sunshine.

1
5
10
15
20
25
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
  • Freezingbelow 0°C
  • Very Cold0–5°C
  • Cold5–12°C
  • Fresh12–18°C
  • Comfortable18–25°C
  • Warm25–30°C
  • Very Warm30–39°C
  • Smoking Hot39°C+

Best 14-day travel windows

Top pick
Aug 10 - Aug 23
14-day window • Avg 24°C • Warm
Alternative 1
Jul 24 - Aug 6
14-day window • Avg 23°C • Warm
Alternative 2
Jul 10 - Jul 23
14-day window • Avg 23°C • Warm

Month-by-month breakdown

January

Fresh
12°Cavg
  • 15°C / 9°C
  • 55mm total
  • 7.7h sun/day

February

Fresh
13°Cavg
  • 16°C / 9°C
  • 49mm total
  • 8.5h sun/day

March

Fresh
14°Cavg
  • 17°C / 10°C
  • 59mm total
  • 9.9h sun/day

April

Comfortable
16°Cavg
  • 19°C / 12°C
  • 62mm total
  • 11.1h sun/day

May

Comfortable
19°Cavg
  • 23°C / 14°C
  • 38mm total
  • 12.3h sun/day

June

Comfortable
21°Cavg
  • 25°C / 16°C
  • 16mm total
  • 13.3h sun/day

July

Warm
23°Cavg
  • 28°C / 18°C
  • 4mm total
  • 13.4h sun/day

August

Warm
23°Cavg
  • 28°C / 19°C
  • 2mm total
  • 12.5h sun/day

September

Warm
22°Cavg
  • 26°C / 18°C
  • 30mm total
  • 11.1h sun/day

October

Comfortable
19°Cavg
  • 23°C / 16°C
  • 78mm total
  • 9.1h sun/day

November

Comfortable
15°Cavg
  • 18°C / 12°C
  • 75mm total
  • 7.6h sun/day

December

Fresh
13°Cavg
  • 16°C / 10°C
  • 77mm total
  • 7.4h sun/day

Plan your trip to Portugal

Found your dates? Use TimeOffCalendar to line up the trip with your time off, public holidays, and your partner's schedule. Free for one person, forever.

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Climate data from Open-Meteo Archive API. Daily normals computed from 10 years of historical observations.
Best Time to Visit Portugal (2026): Month-by-Month Weather Calendar