Estoril weather in September 2025

Expect 26°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Estoril in September. Check more long-term weather averages for Estoril in September before you book your next holiday to Portugal in 2025/2026.

  • 26°C maximum daytime temperature in September in Estoril26
    26°C max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in September in Estoril6
    6 days with some rainfall
  • 17°C minimum night-time temperature in September in Estoril17
    17°C min night temperature
  • 12 hours of daylight per day in September in Estoril12
    12 hours of daylight per day
  • No heat & humidity in September in Estoril0
    No heat & humidity
  • 31 mm monthly rainfall in September in Estoril31
    31 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Estoril6
    6 (High) UV index
  • 19°C sea temperature in September in Estoril19
    19°C sea temperature

More about Estoril

Estoril by month

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

Recommended for Portugal

Jet2holidays: Top discounted 2025/2026 holidays

  • Save on package holidays in 2025/2026 with Jet2holidays
  • Explore top discounted holidays & exclusive offers
  • Including hotel deals, free child places & singles discount
Go to Jet2holidays deal >>

View all Jet2holidays offers

Jet2holidaysJet2holidays deal finder

The September weather guide for Portugal (Estoril) 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 / mm)  |  Imperial (°F / inches)

Back to top

More about Portugal

How hot is it in Estoril in September?

Daytime temperatures usually reach 26°C in Estoril in September with no heat and humidity, falling to 17°C at night.

How sunny is it in Estoril in September?

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

How warm is the sea around Estoril in September?

The average sea temperature around Estoril in September is 19°C.

Does it rain in Estoril in September?

There are usually 6 days with some rain in Estoril in September and the average monthly rainfall is 31mm.

Estoril September sunrise & sunset times

Browse the sunrise and sunset times for Estoril in September 2025. Select a month to view Estoril sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:07 19:08
Monday, 15th September 2025 06:19 18:46
Tuesday, 30th September 2025 06:33 18:22

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^