Weather Averages for Lisbon in September
Averages for Lisbon in SeptemberSeptember sees the weather in Lisbon remain extremely warm.
The average temperature still reaches a high of 26°C (that's about 79°F), and never dips any lower than 17°C (about 63°F).
The average monthly rain is around 26mm and there is still about 9 hours of average daily sunshine.
The average sea temperature is about 20°C (about 68°F) so you can still ride the waves at local beaches such as Estoril and Cascais.
Take care to avoid sunburn and sunstroke by wearing sunscreen with a high SPF, and staying out of the sun during the hottest part of the day.
You can find out when this is by checking the local weather forecast.
Food lovers will enjoy the Festival Regional de Gastronomia de Leiria which runs all month and is a celebration of Portugese cuisine.
The Lisbon Gay and Lesbian Film Festival also takes place this month, and has grown massively in popularity since its inception in the mid 1990s.