May verdict

Lisbon, Portugal in May

Weather score59Good

Good for holiday weather

Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 9.2h per day, so bright days are a strong part of the month. Rainfall averages 39mm, which is relatively low for holiday planning.

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

May weather

Monthly averages

Temp

22°C

Rain

39mm

Sun

9.2h

Sea

16°C

Weather score

59

Good

Seasonal climate calendar

TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score

Trip feel

Mild

Average highs are around 22°C, so days are mild rather than hot.

Drier

Rainfall averages 39mm, which is relatively low for holiday planning.

Bright

Sunshine averages 9.2h per day, so bright days are a strong part of the month.

Cool sea

Sea temperatures average 16°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

View on map

May22°C average high

May is close to Lisbon's yearly temperature average, giving a typical read on daytime heat.

Warmest monthsJune to September

This stretch sets the upper range for average daytime heat.

May39mm average rain

May sits near Lisbon's yearly rainfall average, so rain is a normal planning factor rather than an outlier.

Driest monthsMay to September

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

May9.2 hours average sun

May is brighter than Lisbon's yearly average, though the strongest sunshine usually sits closer to the peak months.

Brightest monthsJune to August

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

View on map

May16°C average sea

May is close to Lisbon's yearly sea-temperature average, so swimming comfort is fairly typical.

Warmest seaJune to October

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

Weather score

View on map

May59 weather score

May sits close to Lisbon's yearly weather-score average, giving a typical overall read on the month.

Best weather monthsJune to September

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

Hotels in Lisbon, Portugal