Urban Climate Index for the Sotavento area, Portugal, in September 2026: the heat across 5 municipalities

Olhão leads this list, at a temperature of 39.3°C. São Brás de Alportel follows. Faro sits in 3rd place of 5, at a temperature of 39.8°C. Loulé closes it, at a temperature of 40.8°C. The five municipalities are:

The map is the whole Sotavento area: streets, parks, fields and woodland. The ranking of the 5 municipalities uses urban ground, so a municipality is ordered by its streets and parks, and the fields around it stay on the map.

Urban ground here is 941.72 km² of the 20,340.78 km² area of interest. Parks inside the built place enter the ranking, because they sit inside the settlement.

No official weather station entered this reading with air, humidity or rain. September’s order follows the land surface temperature of each municipality.

The September mean for the whole area of interest, fields and woodland included, is 39.8°C. On 29 September the coolest observation reached 19.6°C and on 13 September the hottest reached 56.0°C. Both observations sit outside the ranked urban ground.

Faro sits in 3rd place of 5, at a temperature of 39.8°C. Anyone looking for cooler ground this September looks toward Olhão and São Brás de Alportel.

This September gathers the usable satellite images after the cloud filter, from 31 August to 29 September 2026. Each municipality enters with the urban ground of its territory.

Other cities and months are on our blog.

In September the cooler ground sits in Olhão and São Brás de Alportel, and the hotter ground in Loulé. The mean for the whole area of interest is 39.8°C.

Olhão takes first place and Loulé takes last place.

Knowing this, where would you like to spend more time next September in the Sotavento area, in the Algarve?