Weather Guide

Lisbon, Portugal Average Monthly Weather

Weather score52Mixed annual avg

Best months: August, July, September

Across the year, average daytime temperatures are around 21°C, sunshine averages 7.5h per day, and rainfall totals about 742mm. Sea temperatures average 17°C across the year.

Lisbon, Portugal, Portugal travel weather guide
Photo by Leonhard_Niederwimmer on Pixabay

Annual weather

Annual averages

Temp

21°C

Rain

742mm

Annual total

Sun

7.5h

Sea

17°C

Weather score

52

Mixed avg

Seasonal climate calendar

TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score

Trip feel

Warm

Average highs sit around 28°C, giving warm days by monthly-average standards.

Drier

Rainfall averages 4mm, which is relatively low for holiday planning.

Bright

Sunshine averages 11h per day, so bright days are a strong part of the month.

Cool sea

Sea temperatures average 18°C, so the water can feel cool.

Map

Weather map

Compare Lisbon, Portugal with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

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July28°C average high

July is one of Lisbon's warmest months, with daytime heat above the yearly average.

Warmest monthsJune to September

This stretch sets the upper range for average daytime heat.

July4mm average rain

July is one of Lisbon's driest months, making outdoor days easier to plan than in wetter parts of the year.

Driest monthsMay to September

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

July11 hours average sun

July is one of Lisbon's sunniest months, with some of the strongest bright-day conditions in the yearly averages.

Brightest monthsJune to August

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

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July18°C average sea

July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.

Warmest seaJune to October

Sea temperatures are usually near 18°C in this stretch, so swimming comfort is at its strongest.

Weather score

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July83 weather score

July is one of Lisbon's best weather-score months, combining the strongest overall balance in the yearly averages.

Best weather monthsJune to September

These months have the strongest weather score in the monthly averages.

Hotels in Lisbon, Portugal