When to go · Lisbon
Lisbon in September
Great month. Warm and calmer; best month for walking.
Key facts
- Verdict
- Great
- Temperature
- 27°C (81°F)81°F (27°C) / 18°C (64°F)64°F (18°C)
- average high / low
- Rain days
- 3
- Crowds
- Medium
- Portugal overall
- Prices
- Medium
- Portugal overall
Verdict
Warm and calmer; best month for walking.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.
Is another month better than September?
No other month rates higher than September for Lisbon in this guide.
Weather in September
- LisbonHighs around 27 °C (81 °F), lows around 18 °C (64 °F), rain on about 3 daysHighs around 81 °F (27 °C), lows around 64 °F (18 °C), rain on about 3 days
- Lisbon and the centre, Portugal · Lisbon, Sintra, Cascais, Óbidos, Coimbrabest weather
Mild winters with rainy spells; hot, dry summers cooled by Atlantic wind. Sintra is often foggy and 5 °C (9 °F) cooler.Mild winters with rainy spells; hot, dry summers cooled by Atlantic wind. Sintra is often foggy and 9 °F (5 °C) cooler.
Autumn season
The best walking weather and warm sea; wine harvest nearby.
Watch: Rain from mid-October; Web Summit week.
Crowds and prices
- Crowds · Portugal overall
- Medium
- Prices · Portugal overall
- Medium
Portugal overall: Warm sea, thinner crowds; grape harvest in the Douro.
Compare two months
Weather, crowds and prices for any two months in Lisbon, side by side.
Verdict
Sep: Great
Apr: Great
Daytime high
Sep: 27 °C (81 °F)81 °F (27 °C)
Apr: 20 °C (68 °F)68 °F (20 °C)
Night low
Sep: 18 °C (64 °F)64 °F (18 °C)
Apr: 12 °C (54 °F)54 °F (12 °C)
Rain days
Sep: 3 (better)
Apr: 9
Crowds
Sep: Medium
Apr: Medium
Prices
Sep: Medium
Apr: Medium
Festivals listed
Sep: 0
Apr: 3
September: Warm and calmer; best month for walking.
April: Warm; Apr 25 and Easter are busy.
Lisbon: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.