Cascais weather in September 2024

Expect 79°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Cascais in September. Check more long-term weather averages for Cascais in September before you book your next holiday to Portugal in 2024/2025.

79
79°F max day temperature
8
8 hours of sunshine per day
6
6 days with some rainfall
63
63°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
1.2
1.2 inches of monthly rainfall
6
6 (High) UV index
66
66°F sea temperature

More about Cascais

Cascais by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Portugal

TUI: up to 7% off holidays booked online

Sale

Book online with TUI & save up to 7% on holidays
FREE child places available for select holidays
Pay £0 deposits with direct debit & spread the cost

Go to TUI deal >>

View all TUI offers

TUI deal finder

Destination

The September weather guide for Portugal (Cascais) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about Portugal

How hot is it in Cascais in September?

Daytime temperatures usually reach 79°F in Cascais in September with no heat and humidity, falling to 63°F at night.

How sunny is it in Cascais in September?

There are normally 8 hours of bright sunshine each day in Cascais in September - that's 68% of daylight hours.

How warm is the sea around Cascais in September?

The average sea temperature around Cascais in September is 66°F.

Does it rain in Cascais in September?

There are usually 6 days with some rain in Cascais in September and the average monthly rainfall is 1.2 inches.

Cascais September sunrise & sunset times

Browse the sunrise and sunset times for Cascais in September 2024. Select a month to view Cascais sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Sunday, 1st September 2024	07:07	20:07
Sunday, 15th September 2024	07:19	19:45
Monday, 30th September 2024	07:33	19:21

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

Portugal - quick facts
Flight time^✝	2.5 to 4 hours
Time difference	UK 0 to -1 hours
Language(s)	Portuguese
Currency	Euro
Electricity	C + F plug (230V)
Driving side	Right
Why visit?	Beaches Culture Nature Nightlife
Tourist info	Visit Portugal