Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
September verdict
Lisbon, Portugal in September
Weather score73Very good
Very good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 8.5h per day, so bright days are a strong part of the month. Rainfall averages 26mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
27°C
Rain
26mm
Sun
8.5h
Sea
19°C
Weather score
73
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 26mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.5h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 19°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
September27°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September26mm average rain
September sits on the drier side of Lisbon's year, which helps with sightseeing and transfers.
Driest monthsMay to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September8.5 hours average sun
September sits close to Lisbon's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September19°C average sea
September is one of Lisbon's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to October
Sea temperatures are usually near 18°C in this stretch, so swimming comfort is at its strongest.
Weather score
September73 weather score
September scores above Lisbon's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
Hotels in Lisbon, Portugal
Marriott
Lisbon Marriott HotelLisbon, Portugal
Sheraton Lisboa Hotel & SpaLisbon, Portugal
The Ivens, Autograph CollectionLisbon, Portugal
Altis Belém Hotel & Spa, a Member of Design Hotels™Lisbon, Portugal
Memmo Principe Real, Lisbon, a Member of Design Hotels™Lisbon, Portugal
Moxy Lisboa OrienteLisbon, Portugal