São Martinho do Bispo in Fall
In fall (September, October and November), São Martinho do Bispo sees average daytime highs around 21°C and overnight lows near 12°C, with 282 mm of rain over about 29 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 27°C in early September to 15°C by late November. The sky is clear or mostly clear about 41% of the time across fall, and the air most often feels dry.
Fall is São Martinho do Bispo's 2nd-best season to visit on our travel score. For the whole year in context, see São Martinho do Bispo's year-round climate.
- Avg daytime high
- 21°C
- 2nd-warmest season
- Avg overnight low
- 12°C
- Rainfall
- 282 mm
- 29 wet days
- Avg wind
- 10 km/h
- Travel score
- 6.4
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in São Martinho do Bispo in Fall
Over the season highs ease from about 27°C in early September to 15°C by late November.
A typical fall day in São Martinho do Bispo reaches about 21°C and drops to 12°C overnight. The warmest of the three months is September, the coolest November.
São Martinho do Bispo 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° / 6° | 108 | 10.8 | 9.5 | 3.9 |
| Feb | 15° / 6° | 80 | 8.6 | 10.4 | 4.7 |
| Mar | 18° / 8° | 85 | 9.6 | 11.7 | 5.9 |
| Apr | 19° / 10° | 92 | 10.7 | 13 | 6.1 |
| May | 22° / 12° | 73 | 9.2 | 14.2 | 6.9 |
| Jun | 25° / 14° | 23 | 5.1 | 14.8 | 7.9 |
| Jul | 27° / 16° | 9 | 2.2 | 14.6 | 8.2 |
| Aug | 28° / 16° | 14 | 3.1 | 13.6 | 7.8 |
| Sep | 25° / 15° | 49 | 6 | 12.3 | 7.7 |
| Oct | 21° / 12° | 117 | 11.2 | 10.9 | 6.4 |
| Nov | 17° / 9° | 117 | 11.9 | 9.8 | 5.1 |
| Dec | 14° / 7° | 111 | 10.9 | 9.2 | 4.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 41% of the time across fall.
Chance of precipitation in Fall
São Martinho do Bispo gets around 282 mm of rain over 29 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 10 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 54 min in early September to 9 h 24 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 3.5 kWh/m².
Hazard calendar for São Martinho do Bispo
In fall, São Martinho do Bispo overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
São Martinho do Bispo's rainy season runs October–May, when most of the year's rain falls.
Is fall a good time to visit São Martinho do Bispo?
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 São Martinho do Bispo for sightseeing.
What to pack for São Martinho do Bispo in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, São Martinho do Bispo sees daytime highs around 21°C and nights near 12°C. Worth packing: light clothes, a warm layer, rain gear and sun protection. About 29 days see rain.
Sea temperature near São Martinho do Bispo in Fall
The nearest coast averages about 17°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 37 km away) is warmest in August at about 18°C and coldest in February near 14°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) | 14 | 14 | 14 | 15 | 16 | 18 | 18 | 18 | 18 | 17 | 16 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 14 | Bracing |
| Mar | 14 | Bracing |
| Apr | 15 | Bracing |
| May | 16 | Cool |
| Jun | 18 | Cool |
| Jul | 18 | Cool |
| Aug | 18 | Cool |
| Sep | 18 | Cool |
| Oct | 17 | Cool |
| Nov | 16 | Cool |
| Dec | 15 | Bracing |
UV index in São Martinho do Bispo in Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in São Martinho do Bispo peaks around July 14 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 | 5 | 7 | 7 | 9 | 9 | 8 | 6 | 5 | 2 | 2 |
| Level | Low | Moderate | High | High | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 7 | High |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 5 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in São Martinho do Bispo in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in São Martinho do Bispo is worst in October — around 29 µg/m³ PM2.5 (moderate), about 3.9× the cleanest month (November, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 9 | 10 | 13 | 11 | 8 | 21 | 9 | 24 | 23 | 29 | 7 | 7 |
| Level | Good | Good | Moderate | Good | Good | Moderate | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 10 | Good |
| Mar | 13 | Moderate |
| Apr | 11 | Good |
| May | 8 | Good |
| Jun | 21 | Moderate |
| Jul | 9 | Good |
| Aug | 24 | Moderate |
| Sep | 23 | Moderate |
| Oct | 29 | Moderate |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is São Martinho do Bispo?
São Martinho do Bispo sits at 40.2°N, 8.5°W, 62 m above sea level, in Portugal. The nearest listed city is Ribeira de Frades, 2.0 km away.
Topography around São Martinho do Bispo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Martinho do Bispo.
Within 3 km, the terrain around São Martinho do Bispo has only modest variations in elevation — a maximum elevation change of 192 m around an average of 51 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 534 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,993 m.
The land around São Martinho do Bispo is covered by trees (37%) and artificial surfaces (27%) within 3 km, trees (68%) within 16 km, and trees (55%) and grassland (20%) 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 São Martinho do Bispo (40.2102°, -8.4569°, elevation 62 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.