Monthly climatological summary - September 2025
| Station | TN | TX | TNN | D | TXX | D | RR | RRMAX | D | FFMAX | Dia |
|---|
Legend
TN - Average minimum temperature (Degree Celsius)
TX - Average maximum temperature (Degree Celsius)
TNN/D - Absolute minimum temperature (Degree Celsius) and day of occurrence
TXX/D - Absolute maximum temperature (Degree Celsius) and day of occurrence
RR - Total precipitation (milimeters)
RRMAX/D - Daily maximum precipitation (milimeters) and day of occurrence
FFMAX/D - Maximum wind intensity, gust (km/h) and day of occurrence
Notes: The used normal values refer to the period 1971-2000 - UTC Hours – Winter: UTC hour = equal to the legal time Summer: UTC hour = -1h in relation to the legal time - Units: Wind: 1 Km/h = 0.28m/s Precipitation: 1mm = 1 kg/m2 Radiation: 1 J = 1Ws
Summary
The month of August in mainland Portugal was classified as very hot in terms of air temperature and very dry in terms of precipitation.
| Extreme values | ||
|---|---|---|
| Quantity | Value, place and day | |
| Lowest minimum temperature value | 0.6 °C in Miranda do Douro, on the 22nd | |
| Highest maximum temperature value | 40.2 °C in Portel, on the 17th | |
| Highest amount of precipitation in 24h | 53.7 mm in Porto, on the 28th | |
| Highest value of maximum wind intensity (gust) | 105.5 km/h in Fóia, on the 28th | |
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Lisboa:
UTC:
Copyright © Portuguese Institute for Sea and Atmosphere 2025
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