Town · Oeste e Vale do Tejo, Portugal · 39.51°N 9.13°W

São Martinho do Porto, Portugal

São Martinho do Porto is a town of 2,868 people in Oeste e Vale do Tejo, with January highs of 14°C, 1 day a year above 35°C, a hospital 12.0 km from the centre and Lisbon Humberto Delgado Airport (LIS) 82 km away.

Updated 1 November 2026 · 10 of 10 core measures available · 17 open datasets · How we calculate this

Weather now

Normal for November, 1991-2020

17°high · low 12°C · 13 rain days

São Martinho do Porto, Portugal, opening of the sea, with actual lagoon and behind of it the former lagoon, disappeared in the 17th/18th century
Photo: Karstenkascais, CC BY-SA 3.0, via Wikimedia Commons

Who São Martinho do Porto suits

Generated from the data below by published rules

Good fit for

  • Beach lovers
    A beach 0.5 km from the centre
  • People who dislike heat
    24°C July highs and 1 day a year above 35°C

Weaker fit for

Nothing stands out as a weaker fit.

What makes São Martinho do Porto stand out

  • São Martinho do Porto has the most cafés within a 15-minute walk in Oeste e Vale do Tejo among towns under 3,000 people (11).Oeste e Vale do TejoCafés within a 15-minute walk
  • São Martinho do Porto has the most restaurants within a 15-minute walk in Oeste e Vale do Tejo among towns under 3,000 people (27).Oeste e Vale do TejoRestaurants within a 15-minute walk
  • São Martinho do Porto is the closest town in Oeste e Vale do Tejo among towns under 3,000 people to a beach (0.5 km).Oeste e Vale do TejoDistance to the nearest beach

A fact appears when a town ranks first for a measure in Portugal, in its region, or among towns of similar size there.

Climate comfort

72/ 100

Top 14% in Portugal

Based on: Average January high, Days above 35°C a year in the last ten years, Days with rain a year, Tropical nights a year in the last ten years, Frost days a year in the last ten years

Car-free living

45/ 100

Rank 444 of 790 in Portugal

Based on: Grocery stores within a 15-minute walk, Pharmacies within a 15-minute walk, Cafés within a 15-minute walk, Distance to the nearest train station, Distance to the nearest bus station

Access to services

24/ 100

Rank 732 of 800 in Portugal

Based on: Distance to the nearest hospital, Distance to the nearest airport with scheduled flights, Grocery stores within a 15-minute walk, Doctors and clinics within a 15-minute walk, Schools within a 15-minute walk

How precise is each number?Town-levelmeasured or computed for this townModelledestimated from a grid or a modelRegionalonly available for the wider area

São Martinho do Porto compared with Porto

Pick another town in Portugal to see the differences in plain terms.

  • 1°C warmer in JanuaryAverage January highSão Martinho do Porto 14°CPorto 13°C
  • 2°C cooler in JulyAverage July highSão Martinho do Porto 24°CPorto 26°C
  • 16 fewer rainy days a yearDays with rain per yearSão Martinho do Porto 103Porto 119
  • About the same number of very hot daysDays above 35°C per yearSão Martinho do Porto 0.6Porto 1.0
  • 11 min more daylight in DecemberDaylight on 21 DecemberSão Martinho do Porto 9 h 23 minPorto 9 h 12 min

Housing & costs

Official · INE Portugal, Eurostat
Median rent €6.20/m²Per month, 2024, new leases · Portugal €7.97/m²
Sale price €1,876/m²2026 Q2, median of the last 12 months · Portugal €2,264/m²
Price change, 5 years +106%Since 2021 Q2 · Portugal +86%
Crimes per 1,000 residents 26.5Recorded by the police in 2025 · Portugal 32.0
Price level, Portugal 85EU average = 100 (whole country, 2024)

At these medians, a 70 m² home costs about €430 a month to rent and about €131,000 to buy.

São Martinho do Porto is in the municipality of Alcobaça. Rents, prices and crime are published for each municipality as a whole, not for single towns.

Climate today

Town-level · ERA5-Land reanalysis 1991-2020
Average daily high (°C)Average daily low (°C)
Days with rain 1031 mm or more, per year
Tropical nights 5Nights staying above 20°C, 2016-2025
Feels 32°C or hotter 2.6Days a year when heat and humidity feel like 32°C or more, 2016-2025
Daylight on 21 Dec 9 h 23 min14 h 58 min on 21 Jun
Sea temperature Modelled14 to 19°CFebruary to August, open sea nearby
Windy days 63Hourly wind of 30 km/h or more, per year, 2016-2025
Wettest month Nov95 mm on average
Frost days 0Below 0°C, per year, 2016-2025
Days above 35°C 0.6Per year, 2016-2025
Highest UV index Modelled9June and July, noon on a clear day

Month by month

Town-level · ERA5-Land reanalysis 1991-2020

August is the warmest month (25°C average high) and January the coolest (14°C). November is the wettest (95 mm) and July the driest (10 mm).

Best time to visit

  • Walking and cyclingJune to SeptemberBy the published month rules
  • Not ideal for reliable dry weatherApril and October to JanuaryBy the published month rules
  • Warm and quiet RegionalMay and OctoberHighs of 20°C or more and low crowds in the region
  • JanuaryAir 14°Sea 15°11 rain daysCrowds: Low
  • FebruaryAir 15°Sea 14°9 rain daysCrowds: Low
  • MarchAir 17°Sea 14°10 rain daysCrowds: Low
  • AprilAir 18°Sea 15°11 rain daysCrowds: Low
  • MayAir 20°Sea 16°9 rain daysCrowds: Low
  • JuneAir 23°Sea 18°6 rain daysCrowds: Medium
  • JulyAir 24°Sea 18°3 rain daysCrowds: High
  • AugustAir 25°Sea 19°3 rain daysCrowds: Peak
  • SeptemberAir 24°Sea 19°6 rain daysCrowds: Medium
  • OctoberAir 21°Sea 18°11 rain daysCrowds: Low
  • NovemberAir 17°Sea 17°13 rain daysCrowds: Low
  • DecemberAir 15°Sea 15°11 rain daysCrowds: Low

Crowd levels are for Oeste e Vale do Tejo as a whole: nights booked through online platforms in 2025, against the region's busiest month (Eurostat).

Is it getting hotter?

Town-level · ERA5-Land reanalysis

Days above 35°C per year

1991-20000 days
2016-20250.6 days

Both measured periods come from the same reanalysis as the climate section. The bars run to 10 days.

Healthcare & getting around

Town-level · straight-line distances

Within 1.2 km of the centre

  • Grocery stores2
  • Pharmacies0
  • Doctors & clinics0
  • Train stationYes, 0.7 km

30 min by car

  • Hospitals7
  • Sea beaches17
  • People93,150

60 min by car

  • Towns over 10,00011
  • Hospitals20
  • Sea beaches97
  • People559,218
  • Nearest train stationSão Martinho do Porto0.7 km
  • Nearest bus stationTerminal Rodoviário da Nazaré11 km
  • Nearest hospitalCasa de Saúde do Montepio Rainha Dona Leonor12 km
  • Quickest hospital by carLaboratório Analises Beatriz Godinho19 min
  • Nearest airport with scheduled flightsLisbon Humberto Delgado Airport (LIS)82 km · 76 min by car

Distances are straight lines from the town centre. Drive times are by road in free-flowing traffic (OSRM on OpenStreetMap roads); people counts add up the towns reached.

Daily life

Town-level · Overture Maps places, 2026-10-21.0

Within 1.2 km of the centre

  • 2Grocery stores & supermarketsPortugal median: 3
  • 0PharmaciesPortugal median: 1
  • 11CafésPortugal median: 4
  • 27RestaurantsPortugal median: 9
  • 2BakeriesPortugal median: 2
  • 0Gyms & fitness studiosPortugal median: 1
  • 0SchoolsPortugal median: 2
  • 0Doctors & clinicsPortugal median: 1

Nature & surroundings

Town-level · WorldCover, Copernicus DEM, Natura 2000, OpenStreetMap
Parks within 1.2 km 1Portugal median: 0
Nearest sea beach 0.5 kmPraia de São Martinho do Porto
Distance to the coast 0.5 kmStraight line from the town centre
Tree cover within 1.2 km 14%Portugal town median: 29%
Terrain Gently slopingAverage slope 7%; 178 m between the lowest and highest land within 5 km
Protected nature 2.1 kmAveiro/ Nazaré (Natura 2000)

People & community

Modelled · EU Census 2021 grid
Population 2,868Town figure from GeoNames
Population change since 2013 +6%Municipality of Alcobaça · Portugal +7% (official estimates)
Age structure
São Martinho do Porto
Median town in Portugal

Under 1515 to 6465 and over

International residents

Share of residentsSão Martinho do PortoMedian town in Portugal
Born in another EU country3.9%1.6%
Born outside the EU11.7%5.5%
Moved here from abroad in the past year3.0%1.1%

15.6% of residents were born abroad, against 7.1% in the median town in Portugal (2021 census). From the 1 km census grid cells within 1.5 km of the centre (2,266 residents counted).

Environment & natural hazards

  • Earthquakes1 since 1900Magnitude 5 or larger within 100 km. Largest: M6.0.Town-level · USGS earthquake catalog
  • Air quality6.7 µg/m³Average fine particles (PM2.5) at the centre in 2023. The WHO guideline for the yearly average is 5 µg/m³.Modelled · EEA
  • Wildfire1 of 10 yearsYears with a fire of 30 ha or more within 10 km of the centre, 2016-2025; 204 ha burnt by those fires.Town-level · EFFIS

Places like São Martinho do Porto

Matched on climate, amenities, nearest and access

Measures used: Average January high, Average July high, Days above 35°C a year in the last ten years, Days with rain a year, Grocery stores within a 15-minute walk, Cafés within a 15-minute walk, Distance to the nearest train station and Distance to the nearest airport with scheduled flights. A match of 100% would mean the same values on every one.

Common questions about São Martinho do Porto

What is the weather like in São Martinho do Porto through the year?

January averages a high of 14°C and a low of 9°C; July averages 24°C and 17°C. There are about 103 days with rain a year. These are averages for 1991-2020.

How many very hot days does São Martinho do Porto get?

São Martinho do Porto averaged 0.6 days a year above 35°C in 2016-2025, against 0 a year in 1991-2000.

Does it freeze in São Martinho do Porto?

São Martinho do Porto averaged no frost days a year in 2016-2025.

What is within walking distance of the centre of São Martinho do Porto?

Within 1.2 km of the centre there are 2 grocery stores, no pharmacies, no doctors and clinics and 11 cafés. In a straight line, the nearest train station is 0.7 km away, the nearest bus station is 11 km away, the nearest hospital is 12 km away, the nearest beach is 0.5 km away and the nearest coastline is 0.5 km away.

What is the nearest airport to São Martinho do Porto?

Lisbon Humberto Delgado Airport (LIS), 82 km from the centre in a straight line.

How much daylight does São Martinho do Porto get in winter?

9 h 23 min on 21 December, against 14 h 58 min on 21 June.

When is the best time to visit São Martinho do Porto?

By the published month rules: walking and cycling from June to September.

Is the sea warm enough to swim in São Martinho do Porto?

The open sea nearby stays below 20°C on average all year; it is warmest in August, at about 19°C.

How much does a home cost in São Martinho do Porto?

The median rent was €6.20/m² a month (2024, new leases), about €430 for 70 m². Homes sold for €1,876/m² (2026 Q2, median of the last 12 months), about €131,000 for 70 m². These are figures for the municipality of Alcobaça as a whole.

Who is São Martinho do Porto a good fit for?

By the published rules: beach lovers (A beach 0.5 km from the centre); people who dislike heat (24°C July highs and 1 day a year above 35°C).

Sources & methodology

Every value comes from one of the open datasets below and is computed the same way for every town. Each section names how precise its values are: town-level, modelled or regional. Distances are straight lines from the town centre, and amenities are counted within 1.2 km of it. Read the full methodology.

"Who São Martinho do Porto suits" lines come from fixed rules applied to every town in the same way. A rule only uses values that are modelled or better, and each line shows the numbers that triggered it. How the rules work.

DatasetUsed forVersionLicence
Copernicus DEM GLO-30 (30 m elevation)Elevationglo30_s120Copernicus DEM licence (free for any use, with attribution)
PM2.5, European air quality data (EEA, interpolated 1 km map)Air qualitypm25_2023CC BY 4.0
Burnt areas (European Forest Fire Information System, EFFIS)Wildfires2016-2025CC BY 4.0
ERA5 monthly sea surface temperature (Copernicus Climate Data Store)Sea temperaturemonthly_1991-2020CC BY 4.0
ERA5-Land reanalysis (Copernicus Climate Data Store)Climatepoints_1991-2025CC BY 4.0
ESA WorldCover 2021 (10 m land cover)Land coverv200_2021CC BY 4.0
EU Census 2021 population grid (Eurostat)Census gridV3Free reuse with acknowledgement (European Commission reuse policy)
Nights spent in short-stay accommodation booked through online platforms (Eurostat tour_ce_omn12)Crowds2026-11-01CC BY 4.0
Price level indices (Eurostat prc_ppp_ind)Price level2026-11-01CC BY 4.0
GeoNamesPlace names and populations2026-10-31CC BY 4.0
INE Portugal (local statistics on rents, house prices, crime and population)Rents, house prices, crime and population2026-11-01CC BY 4.0
Natura 2000 protected sites (EEA, end 2024)Protected areasend2024CC BY 4.0
OpenStreetMap (Geofabrik extracts)Stations, hospitals, beaches, coastline2026-10-31ODbL 1.0
OurAirportsAirports2026-10-31Public domain
Overture Maps placesAmenities2026-10-21.0CDLA-Permissive-2.0
TEMIS UV index climatology (KNMI / ESA)UV indexv2.0_clim_2004-2020Free use with credit; TEMIS asks to be told how the data is used
USGS earthquake catalog (ComCat)Earthquakes2026-10-31Public domain