Planning a Trip to Lisbon? Here's the Weather
See what weather to expect in Lisbon, Portugal and plan your trip with confidence. Monthly averages from real historical weather data.
Lisbon sits at the Atlantic edge of Europe with a climate that swings between genuinely wet winters and a long, reliably dry warm season — a contrast that shapes the city's indoor and outdoor rhythms alike. Specialty coffee culture runs deep here, and on a grey November afternoon the city's neighbourhood cafés earn their keep. Summers are warm rather than punishing, with August highs near 29°C and rainfall that nearly disappears entirely.
Written by Leo Vicente, founder & engineer who loves to travel
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21°C
Avg. high
14°C
Avg. low
605mm
Yearly rainfall
5
Best months
Travel Window Score · 9.1/10
Lisbon's best stretch runs June–July — around 3 rain days a month and daytime highs near 27°C, on a 10-year historical average (climatology tier).
Climatology · 10-YR AVG · How we forecast →
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Start PlanningMonthly Temperature & Rainfall
15°
9°
67mm
Jan
16°
10°
57mm
Feb
17°
10°
74mm
Mar
19°
12°
68mm
Apr
23°
14°
40mm
May
25°
16°
16mm
Jun
28°
18°
4mm
Jul
29°
19°
1mm
Aug
26°
17°
31mm
Sep
23°
16°
73mm
Oct
18°
12°
90mm
Nov
16°
10°
84mm
Dec
What Weather to Expect in Lisbon
Lisbon typically has the most favorable weather for travel during May, June, July, August, September, with comfortable temperatures and relatively low rainfall — ideal conditions for sightseeing and outdoor activities.
Best Time to Visit Lisbon
May through September offer a drier stretch with average rainfall well below the annual norm and daytime highs climbing from 23°C to 29°C — conditions that suit the city's hilltop viewpoints, riverside esplanades, and open-air tram rides without the need for a backup plan.
The best time to visit Lisbon is May through September, when daytime highs average around 26°C and rainfall stays low at roughly 18mm per month. These months offer the most comfortable conditions for sightseeing, outdoor activities, and exploring the city at a relaxed pace. August is typically the driest of these months, with only around 1mm of precipitation.
Lisbon Weather by Season
Spring
Spring (March–May) brings mild weather to Lisbon, with highs averaging 20°C and lows around 12°C. The season is moderately wet, accumulating around 182mm total with roughly 9 rainy days per month.
Summer
Summer (June–August) brings warm weather to Lisbon, with highs averaging 27°C and lows around 18°C. The season is very dry with minimal rainfall, accumulating around 21mm total with roughly 2 rainy days per month.
Autumn
Autumn (September–November) brings mild weather to Lisbon, with highs averaging 22°C and lows around 15°C. The season is moderately wet, accumulating around 194mm total with roughly 8 rainy days per month.
Winter
Winter (December–February) brings mild weather to Lisbon, with highs averaging 16°C and lows around 10°C. The season is moderately wet, accumulating around 208mm total with roughly 8 rainy days per month.
Christmas market dates 2026
Wonderland Lisboa
Expected dates, based on last seasonLisbon weather in December: 16°C / 10°C, 9 days with precipitation
Things to do in Lisbon
Handpicked activities you can book now, matched to typical weather in Lisbon.
Itineraries Featuring Lisbon
Climate data is a 10-year historical average (2016–2025), averaged across a wide area rather than a single weather station. Temperatures in Celsius. How we forecast →