Temperature
Warm by day, mild at night.
80°Ftypical Aug high
Typical range
Lisbon
Portugal · Europe
Lisbon is most comfortable in early autumn. Summers are warm and winters are mild. The wettest months are roughly October to January. Humidity is usually low.
Best time to go
12 mo · Typical year
Temperature range
47°F to 80°F
Rain
7 days/mo
Sunshine
10.5 h/day
Humidity feel
Generally dry
When to visit
Month-by-month fit
Precipitation
One of the driest months, with very little rain.
3%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
12.6 hAug sunshine
Heat & humidity by month
It rarely feels hot or humid.
LowAug heat feel
Easy airWarm airHot airHumid air
Hourly comfort pattern
In August, afternoons feel about 72° and nights feel near 62°.
Very coldColdCoolComfortableNight shading
More detailIncludes sky, daypart comfort, sea, and wind
Cloud cover
Predominantly clear skies.
74%Aug clear sky
ClearCloud cover
Sea temperature
70°Aug sea temp
Typical August day
August late afternoons are around 75°F, easing to about 71°F in early evening.
Avg temp Typical range
Morning69°F
Rain2%
Cloud34%
Humid airLow
Sun intensityLow
Midday74°F
Rain2%
Cloud22%
Humid airLow
Sun intensityStrong
Late afternoon75°F
Rain2%
Cloud17%
Humid airLow
Sun intensityStrong
Best windowEarly evening71°F
Rain1%
Cloud17%
Humid airLow
Sun intensityLow
Wind pattern
August's typical breeze keeps warmer afternoons from feeling as still.
11 mphAug Breezy
Typical wind speed (mph)
Similar
Similar things to doBarcelonaSpainSimilar things to doPortoPortugalSimilar things to doIstanbulTurkeySimilar things to doRomeItaly
Want a side-by-side climate view? Compare Lisbon with Barcelona.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology