Month guide · Lisbon · Portugal
Lisbon in September
What September is really like in Lisbon: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: Dicklyon, CC BY-SA 4.0
Quick answer
September is one of the best months to visit Lisbon. Expect average highs of 27°C (81°F), lows of 17°C (63°F), about 3 rainy days and roughly 12.4 hours of daylight. Still hot and sunny with the warmest sea of the year and fewer families — an excellent month for city and beach.
Key facts
- Average high / low
- 27°C (81°F) / 17°C (63°F)
- Rainy days
- About 3
- Daylight
- About 12.4 hours
- Sea temperature
- 19°C (66°F)
- Crowds
- Busy
- Hotel prices
- High
Weather in September
September is the 3rd-warmest month in Lisbon: days average 27°C (81°F) against a yearly average high of 22°C (72°F), and nights fall to about 17°C (63°F). Rain falls on roughly 3 of its 30 days. Compared with August (29°C (84°F)), September is cooler; by October highs drop to around 23°C (73°F).
- Sunrise (15 September)
- About 07:18
- Sunset (15 September)
- About 19:45
- Daylight
- About 12.4 hours
- Sea
- 19°C (66°F)
Autumn (September–November). Warm sea in September, pleasant October days and the first rains in November, when prices drop.
Crowds and prices
On a 1–5 scale, September rates 4 for crowds (the peak is June at 5) and 4 for hotel prices (highest in June). Book accommodation early: September is one of the pricier months.
Events in September
September has no major recurring festival in Lisbon, which usually means easier bookings.
What to do in September
Mild, settled days suit walking, viewpoints and time outdoors.
Neighbourhood · Alfama
Alfama, the Sé and Santa Luzia
Start at Portas do Sol early in the morning and get deliberately lost on the way down; most lanes eventually lead to the river.
- Time needed
- Half a day
- Cost
- Free
- Free
- History
- Photo spot
- Couples
- Views
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Experience · Graça
Tram 28
The classic yellow 1930s-style trams of route 28 rattle between Martim Moniz and Campo de Ourique through Graça, Alfama, the Baixa, Chiado and Estrela, squeezing through streets barely wider than the carriage.
- Time needed
- 40–50 minutes end to end
- Cost
- Low cost
- Iconic
- Kids
- Views
- Photo spot
Landmark · Baixa
Praça do Comércio and Rua Augusta Arch
Sit on the Cais das Colunas steps at sunset, then walk west along the Ribeira das Naus riverfront to Cais do Sodré.
- Time needed
- 1 hour
- Cost
- Free
- Free
- Iconic
- History
- Views
- Architecture
Viewpoint · Graça
Miradouro da Senhora do Monte
The highest of Lisbon's central viewpoints looks across the castle, the Baixa and the river to the 25 de Abril Bridge, under pine trees beside a small chapel.
- Time needed
- 45 minutes
- Cost
- Free
- Free
- Views
- Couples
- Photo spot
What to pack
For highs near 27°C, lows near 17°C and 3 wet days: light layers for the day and a light jacket for the evening; comfortable walking shoes.
Is September a good time to visit Lisbon?
One of the best months to visit Lisbon. The other best months are April–June and October. Compare every month.
Lisbon in other months
Questions travellers ask
+Is September a good time to visit Lisbon?
It is one of the best months to visit Lisbon. Still hot and sunny with the warmest sea of the year and fewer families — an excellent month for city and beach.
+How warm is Lisbon in September?
Average highs are around 27°C (81°F) and lows around 17°C (63°F).
+Does it rain a lot in Lisbon in September?
Expect rain on about 3 days of the month, so it is usually dry.