Sintra in Fall
In fall (September, October and November), Sintra 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 Sintra's 2nd-best season to visit on our travel score. Sintra 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 Sintra'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 Sintra in Fall
Over the season highs ease from about 19°C in early September to 16°C by late November.
A typical fall day in Sintra reaches about 18°C and drops to 17°C overnight. The warmest of the three months is September, the coolest November.
Sintra 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.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 14° / 12° | 81 | 10.2 | 9.6 | 4.3 |
| Feb | 14° / 12° | 60 | 8.2 | 10.5 | 4.3 |
| Mar | 15° / 13° | 56 | 8.1 | 11.7 | 4.7 |
| Apr | 15° / 14° | 50 | 7.8 | 13 | 5.1 |
| May | 17° / 15° | 40 | 5.4 | 14.1 | 6.1 |
| Jun | 18° / 17° | 8 | 1.8 | 14.7 | 7.5 |
| Jul | 19° / 18° | 2 | 0.6 | 14.4 | 8.2 |
| Aug | 19° / 18° | 4 | 0.8 | 13.5 | 8.2 |
| Sep | 19° / 18° | 27 | 3.8 | 12.3 | 7.5 |
| Oct | 19° / 17° | 80 | 9 | 11 | 6.3 |
| Nov | 17° / 15° | 95 | 10.6 | 9.9 | 5.3 |
| Dec | 15° / 13° | 89 | 10.6 | 9.3 | 4.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 49% of the time across fall.
Chance of precipitation in Fall
Sintra gets around 202 mm of rain over 23 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 22 km/h across fall.
Sunrise & sunset in Fall
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.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.8 kWh/m².
Hazard calendar for Sintra
In fall, Sintra overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Sintra's rainy season runs October–April, when most of the year's rain falls.
Is fall a good time to visit Sintra?
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.
fall is a reasonable time to visit Sintra for sightseeing.
What to pack for Sintra in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Sintra 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.
Sea temperature near Sintra 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 at the nearest coast (about 20 km away) 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 15 | 15 | 15 | 16 | 18 | 18 | 19 | 19 | 18 | 17 | 16 |
| Comfort | Cool | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Cool |
| Feb | 15 | Bracing |
| Mar | 15 | Bracing |
| Apr | 15 | Cool |
| May | 16 | Cool |
| Jun | 18 | Cool |
| Jul | 18 | Cool |
| Aug | 19 | Cool |
| Sep | 19 | Cool |
| Oct | 18 | Cool |
| Nov | 17 | Cool |
| Dec | 16 | Cool |
UV index in Sintra in Fall
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 Sintra 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 6 | 8 | 7 | 9 | 9 | 9 | 6 | 5 | 3 | 2 |
| Level | Low | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | High | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 6 | High |
| Apr | 8 | Very high |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 5 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Where is Sintra?
Sintra sits at 38.8°N, 9.4°W, 197 m above sea level, in Portugal. The nearest listed city is Algueirão, 3.0 km away.
Topography around Sintra
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sintra.
Within 3 km, the terrain around Sintra has significant variations in elevation — a maximum elevation change of 460 m around an average of 198 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 Sintra is covered by trees (49%), grassland (27%) and artificial surfaces (22%) within 3 km, water (28%), grassland (27%) and trees (24%) within 16 km, and water (47%) and grassland (24%) within 80 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
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 Sintra (38.801°, -9.3783°, elevation 197 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.