Estoril in Fall

In fall (September, October and November), Estoril sees average daytime highs around 18°C and overnight lows near 17°C, with 202 mm of rain over about 23 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.

Over the season highs ease from about 19°C in early September to 16°C by late November. The sky is clear or mostly clear about 49% of the time across fall, and the air most often feels humid.

Fall is Estoril's 2nd-best season to visit on our travel score. Estoril has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Estoril's year-round climate.

Avg daytime high
18°C
2nd-warmest season
Avg overnight low
17°C
Rainfall
202 mm
23 wet days
Avg wind
22 km/h
Travel score
6.4
2nd-best season
Months
Sep · Oct · Nov

Temperature in Estoril in Fall

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 19°C in early September to 16°C by late November.

A typical fall day in Estoril reaches about 18°C and drops to 17°C overnight. The warmest of the three months is September, the coolest November.

10°15°20°25°SepOctNov

Estoril weather by month

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 12°8110.29.64.3
Feb14° / 12°608.210.54.3
Mar15° / 13°568.111.74.7
Apr15° / 14°507.8135.1
May17° / 15°405.414.16.1
Jun18° / 17°81.814.77.5
Jul19° / 18°20.614.48.2
Aug19° / 18°40.813.58.2
Sep19° / 18°273.812.37.5
Oct19° / 17°809116.3
Nov17° / 15°9510.69.95.3
Dec15° / 13°8910.69.34.6

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time across fall.

0%25%50%75%100%SepOctNov

Chance of precipitation in Fall

Any precipitation

Estoril gets around 202 mm of rain over 23 wet days across fall. The line is the day-by-day chance of measurable precipitation.

0%10%20%30%40%50%SepOctNov

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

Most of fall feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

0%25%50%75%100%SepOctNov

Wind in Fall

Winds average 22 km/h across fall.

0102030SepOctNov

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 54 min in early September to 9 h 30 min by late November. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMSepOctNov

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 3.8 kWh/m².

0246SepOctNov
Planning a trip in fall

Hazard calendar for Estoril

In seasonPeak

In fall, Estoril overlaps its rainy season season. The full year is below, with each hazard's peak months called out.

Estoril's rainy season runs October–April, when most of the year's rain falls.

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

Is fall a good time to visit Estoril?

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

6.4
Sightseeing
2nd-best month of the year
2.3
Beach & pool
2nd-best month of the year

fall is a reasonable time to visit Estoril for sightseeing.

What to pack for Estoril in Fall

From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In fall, Estoril sees daytime highs around 18°C and nights near 17°C. Worth packing: a warm layer, rain gear, sun protection and a windbreaker. About 23 days see rain.

a warm layerrain gearsun protectiona windbreaker

Sea temperature near Estoril in Fall

The nearest coast averages about 18°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in September at about 19°C and coldest in February near 15°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Bracing
Apr15Cool
May16Cool
Jun18Cool
Jul18Cool
Aug19Cool
Sep19Cool
Oct18Cool
Nov17Cool
Dec16Cool

UV index in Estoril in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Estoril peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 15UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr8Very high
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct5High
Nov3Moderate
Dec2Low
Location & terrain

Where is Estoril?

Estoril sits at 38.7°N, 9.4°W, 24 m above sea level, in Portugal. The nearest listed city is Monte Estoril, 1.0 km away.

Topography around Estoril

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Estoril.

Within 3 km, the terrain around Estoril has only modest variations in elevation — a maximum elevation change of 145 m around an average of 42 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 513 m; within 80 km, large variations in elevation — a maximum elevation change of 651 m.

The land around Estoril is covered by artificial surfaces (38%) and water (31%) within 3 km, water (56%) within 16 km, and water (49%) and grassland (24%) within 80 km.

3 km
145 m
16 km
513 m
80 km
651 m
treesshrubsgrasslandcroplandartificial surfaceswater
Fall weather nearby: Monte Estoril 1.0 km · Cascais 2.0 km · Alcabideche 3.0 km · Parede 4.0 km · São Domingos de Rana 5.0 km · Carcavelos 7.0 km · Oeiras 8.0 km · Rio de Mouro 9.0 km

Portugal travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$32,082
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2022
Road deaths
8.2
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 612
Religion
Catholic 68%not applicable 13%no religion 12%no response 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Estoril (38.7057°, -9.3977°, elevation 24 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.