Month guide · São Gonçalo, Portugal
São Gonçalo in September: weather and what to expect
In September, São Gonçalo averages highs of 23°C and lows of 19°C, with about 11 rainy days and 33 mm of rain. Highs are 1°C cooler than in August and 2°C warmer than in October. Crowds in Madeira are high. These are regional figures for the wider area.
Is September a good time to visit?
Good for
No verdicts for São Gonçalo in September yet. They only use climate values that are precise enough to judge with.
Not ideal for
Nothing stands out as a weaker fit.
Daily highs through September
Regional · ERA5-Land 1991-2020Highs fall about 2°C over the month. A day above 25°C happens in roughly 1 September in 2.
September in detail
Regional · ERA5-LandCrowds, holidays and daylight
Public holidays in September 2027
No national or regional public holidays.
Local (municipal) holidays are not included.
Warmer in September
Where is warm in September →| Place | High | Rain days | From São Gonçalo |
|---|---|---|---|
| Portimão, Algarve | 27°C | 4 | 908 km |
| Ferragudo, Algarve | 27°C | 4 | 909 km |
| Parchal, Algarve | 27°C | 4 | 910 km |
| Porches, Algarve | 27°C | 4 | 918 km |
| Estômbar, Algarve | 27°C | 4 | 913 km |
The nearest towns with a warmer September. Distances are in a straight line.
How September is changing
Regional · ERA5-LandSeptember highs are 0.4°C warmer than in 1991-2000, and September rainfall is down about 30% (2016-2025 against 1991-2000). Days above 25°C in September went from 1.1 to 1.8 a year on average.
Questions about São Gonçalo in September
How warm is São Gonçalo in September?
Average highs are 23°C and lows 19°C. August averages 24°C and October 21°C. These are regional figures for the wider area.
Does it rain much in São Gonçalo in September?
About 11 days have at least 1 mm of rain, with 33 mm in total over the month. These are regional figures for the wider area.
Is São Gonçalo busy in September?
In September 2025, nights booked through online platforms in Madeira were about 85% of the busiest month, which we count as high. The figure is for the whole region and leaves out hotels.
How long are the days in São Gonçalo in September?
About 12 h 25 min from sunrise to sunset in the middle of the month.
Sources
Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology