We have scored the climate risk of the 1.861 buildings in Sarreaus using Cadastre data, satellite imagery and climate projections, and added it up by area, street and watercourse. Water is the biggest factor: 132 homes are in a flood zone.
Level of the highest hazard in each 250 m area by 2050: flooding, heat, wildfire, wind or ground movement.
Position among the 8.217 municipalities: further right means more risk. These are figures for the municipality as a whole, the same for everyone; they may differ from those for the typical building. Compare with others →
It comes from matching each building with its neighbourhood, its street, the nearest watercourse and its surroundings.
They are in the area that can flood once every 500 years according to the official maps (SNCZI); 125 of them are in the 100-year area. Next to Río Limia, 19 homes are inside the flood zone, less than 100 m from the watercourse.
According to the Ministry’s studies, this is an annual probability of 0,2 % (500 years) or 1 % (100 years), not “once every 500 years”: it can happen two years in a row. Small gullies are not always mapped.
Around homes with less than 2 % tree cover, the surface in summer is 0,7 °C above the median for Sarreaus; with more than 40 % tree cover, 3,7 °C below. 18 homes are in surroundings with almost no trees.
Ground surface temperature (Landsat), not air temperature. More trees usually go with less asphalt and lower density: this is a correlation, not a measure of the effect of planting trees.
These are 966 buildings right next to vegetation that can burn. Almost all are houses (966), on the edges of the town and in housing estates.
Proximity to woodland and to burnt areas (ESA WorldCover, EFFIS). It does not measure the state of the vegetation or any firebreaks.
The 1.290 homes in Sarreaus by the level of their building. Tap a hazard to see it on the map.
The same data for all 8.217 municipalities in Spain. Choose what to compare with: municipalities of a similar size, the province, the region or the whole of Spain.
Compared with the 1.826 municipalities with between 1.000 and 5.000 inhabitants. The bar shows where Sarreaus stands: further right means more risk.
| Indicator | Sarreaus | Group median | Position |
|---|---|---|---|
| Tropical nights a year, today | 0 nights | 5 nights | lower than 84 % of them |
| Tropical nights a year, 2050 | 0 nights | 34 nights | lower than 93 % of them |
| Average summer maximum, 2050 | 28,8 °C | 33,0 °C | lower than 78 % of them |
| Night-time heat island | −0,6 °C | 0,2 °C | lower than 93 % of them |
| Flood-prone area (100-year) | 0,1% | 1,1% | lower than 69 % of them |
| Area burnt 2016-2026 | 0,2% | 0,0% | higher than 71 % of them |
| Water stress 2050 (0-5) | 3,4 | 4,6 | lower than 72 % of them |
| Maximum 50-year gust | 32 m/s | 30 m/s | higher than 70 % of them |
| Ground movement | −1,0 mm/yr | −0,3 mm/yr | sinking faster than 84 % of them |
| Population aged 65 or over | 50% | 24% | higher than 100 % of them |
Compared with the 92 municipalities in Ourense province. The bar shows where Sarreaus stands: further right means more risk.
| Indicator | Sarreaus | Group median | Position |
|---|---|---|---|
| Tropical nights a year, today | 0 nights | 0 nights | lower than 52 % of them |
| Tropical nights a year, 2050 | 0 nights | 0 nights | lower than 62 % of them |
| Average summer maximum, 2050 | 28,8 °C | 28,4 °C | higher than 61 % of them |
| Night-time heat island | −0,6 °C | 0,2 °C | lower than 90 % of them |
| Flood-prone area (100-year) | 0,1% | 1,6% | lower than 71 % of them |
| Area burnt 2016-2026 | 0,2% | 6,1% | lower than 77 % of them |
| Water stress 2050 (0-5) | 3,4 | 2,1 | higher than 86 % of them |
| Maximum 50-year gust | 32 m/s | 32 m/s | lower than 52 % of them |
| Ground movement | −1,0 mm/yr | −0,9 mm/yr | sinking faster than 54 % of them |
| Population aged 65 or over | 50% | 42% | higher than 95 % of them |
Compared with the 313 municipalities in Galicia. The bar shows where Sarreaus stands: further right means more risk.
| Indicator | Sarreaus | Group median | Position |
|---|---|---|---|
| Tropical nights a year, today | 0 nights | 0 nights | lower than 51 % of them |
| Tropical nights a year, 2050 | 0 nights | 0 nights | lower than 66 % of them |
| Average summer maximum, 2050 | 28,8 °C | 26,6 °C | higher than 87 % of them |
| Night-time heat island | −0,6 °C | 0,2 °C | lower than 95 % of them |
| Flood-prone area (100-year) | 0,1% | 1,4% | lower than 79 % of them |
| Area burnt 2016-2026 | 0,2% | 0,8% | lower than 62 % of them |
| Water stress 2050 (0-5) | 3,4 | 2,0 | higher than 96 % of them |
| Maximum 50-year gust | 32 m/s | 34 m/s | lower than 68 % of them |
| Ground movement | −1,0 mm/yr | −1,4 mm/yr | sinking more slowly than 80 % of them |
| Population aged 65 or over | 50% | 35% | higher than 98 % of them |
Compared with the 8.217 municipalities in Spain. The bar shows where Sarreaus stands: further right means more risk.
| Indicator | Sarreaus | Group median | Position |
|---|---|---|---|
| Tropical nights a year, today | 0 nights | 0 nights | lower than 74 % of them |
| Tropical nights a year, 2050 | 0 nights | 8 nights | lower than 92 % of them |
| Average summer maximum, 2050 | 28,8 °C | 32,4 °C | lower than 81 % of them |
| Night-time heat island | −0,6 °C | 0,1 °C | lower than 91 % of them |
| Flood-prone area (100-year) | 0,1% | 0,6% | lower than 57 % of them |
| Area burnt 2016-2026 | 0,2% | 0,0% | higher than 77 % of them |
| Water stress 2050 (0-5) | 3,4 | 4,6 | lower than 77 % of them |
| Maximum 50-year gust | 32 m/s | 31 m/s | higher than 65 % of them |
| Ground movement | −1,0 mm/yr | −0,4 mm/yr | sinking faster than 78 % of them |
| Population aged 65 or over | 50% | 28% | higher than 96 % of them |
Values for the municipality as a whole (median over built-up land). The position is the percentage of municipalities in the group with a lower value: it is not a probability of damage. 2050 = SSP3-7.0 scenario.
Semicolon-separated tables with a decimal comma, ready to open in a spreadsheet or a GIS (areas include longitude and latitude).
What this is and what it is not. It is a guide-only analysis made with public data and models, with the same rules for every municipality. It does not replace official maps, a technical study or emergency plans. For your own building, look up its report.
Building by building. We have scored the 1.861 Cadastre buildings in Sarreaus with the same rules as each building’s report on Mi Riesgo Climático, from 0 to 100 for each hazard: low (up to 25), medium (up to 50), high (up to 75) and very high.
Aggregates only. To protect each owner, no individual building appears here: only 250 m areas with at least 3 buildings, and neighbourhoods and streets with at least 60 homes.
Wildfire and flooding. Wildfire counts proximity to woodland or scrubland of at least 100 ha (not urban parks or tree-lined streets). For flooding, besides the official flood zones, a building that was inside a real flood observed by satellite (Copernicus EMS, such as the 2024 DANA storm) is at least at high level.
2050. Average for 2041-2070 under an intermediate-to-high emissions scenario (SSP3-7.0). Tropical nights and heat change with the climate; flooding, wildfire, wind and ground movement are shown with current data when there is no projection.
Rivers and streams. Named watercourses from OpenStreetMap. We count the homes less than 50 and 100 m from the watercourse and, separately, how many of them are in an official flood zone (SNCZI). Being close does not mean they will flood, and having no official zone does not mean they cannot.
Neighbourhoods and streets. Neighbourhoods and districts from OpenStreetMap; streets according to the Cadastre address. The street heat index combines tropical nights in 2050 (35 %), heat island (30 %), lack of trees (20 %) and buildings from before 1980 (15 %).
Sources. Cadastre (buildings and addresses); ERA5 + CHELSA/CMIP6 MPI-ESM1-2-HR and AdapteCCa (tropical nights and temperature); Landsat 8/9 and MODIS (heat island); ESA WorldCover and EFFIS (wildfire); MITECO SNCZI (flood zones); JRC (coast); ERA5 + Global Wind Atlas (wind); Copernicus EGMS (ground movement); WRI Aqueduct (water); INE (population); OpenStreetMap, © contributors, ODbL (streets, neighbourhoods, rivers and facilities).