Lisbon
September
Weather in Lisbon for September 2025
Your guide to Lisbon weather in September - trends and predictions
In general, the average temperature in Lisbon at the beginning of September is 25.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 24.6 °C by the end of September.
The climate of Lisbon in September is notably wet, with an average of 13 rainy days, and a total of 50 mm of precipitation.
Is September a good time to visit Lisbon? check out the best time to travel to Lisbon page.
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Temperatures
Rain 🌧️
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17
Dry days
13
Rainy days
0
Snow days
25°/17°
Temperatures
22 km/h
Avg max wind
68 %
Avg humidity
Lisbon Weather September
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What’s the Weather Like in Lisbon This September?
Discover the average temperatures and weather trends across Lisbon’s cities this September.
Temperatures trend during September in Lisbon
See the weather trend as well as the moving average line
September weather in Lisbon day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 26° /17° | 0.1 mm | 6 | |
| 2 Sept. | Patchy rain possible | 25° /16° | 1.7 mm | 6 | |
| 3 Sept. |  Sunny | 24° /16° | 3.6 mm | 6 | |
| 4 Sept. | Sunny | 26° /16° | 3 mm | 6 | |
| 5 Sept. |  Partly cloudy | 25° /17° | 1 mm | 6 | |
| 6 Sept. |  Cloudy | 25° /17° | 0 mm | 6 | |
| 7 Sept. | Patchy rain possible | 25° /17° | 0.6 mm | 6 | |
| 8 Sept. | Patchy rain possible | 25° /17° | 0.4 mm | 6 | |
| 9 Sept. |  Overcast | 26° /18° | 0.8 mm | 6 | |
| 10 Sept. | Partly cloudy | 26° /18° | 0.2 mm | 6 | |
| 11 Sept. | Partly cloudy | 25° /17° | 0.1 mm | 6 | |
| 12 Sept. | Sunny | 25° /17° | 5.3 mm | 6 | |
| 13 Sept. |  Moderate or heavy rain shower | 26° /18° | 8.2 mm | 6 | |
| 14 Sept. | Sunny | 25° /19° | 10.5 mm | 6 | |
| 15 Sept. | Moderate rain at times | 26° /18° | 0.9 mm | 6 | |
| 16 Sept. | Partly cloudy | 26° /18° | 2.3 mm | 7 | |
| 17 Sept. | Sunny | 26° /18° | 2.7 mm | 7 | |
| 18 Sept. | Sunny | 25° /17° | 0.1 mm | 6 | |
| 19 Sept. | Sunny | 25° /17° | 1.8 mm | 6 | |
| 20 Sept. | Patchy rain possible | 24° /17° | 0.2 mm | 6 | |
| 21 Sept. | Patchy rain possible | 25° /18° | 1.3 mm | 6 | |
| 22 Sept. | Sunny | 25° /17° | 0.2 mm | 7 | |
| 23 Sept. |  Heavy rain at times | 24° /16° | 3.4 mm | 6 | |
| 24 Sept. | Patchy rain possible | 24° /16° | 0.6 mm | 6 | |
| 25 Sept. | Patchy rain possible | 24° /18° | 0.3 mm | 6 | |
| 26 Sept. | Cloudy | 25° /17° | 0.7 mm | 6 | |
| 27 Sept. | Sunny | 24° /16° | 0 mm | 6 | |
| 28 Sept. | Sunny | 24° /16° | 0 mm | 6 | |
| 29 Sept. | Sunny | 25° /16° | 0.1 mm | 6 | |
| 30 Sept. | Sunny | 26° /17° | 0 mm | 7 | |
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Important Notice
Our weather forecast for Lisbon in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Lisbon forecast closer to your planned date for the most up-to-date weather information.
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Lisbon in September - FAQ
What are the expected maximum and minimum temperatures in Lisbon during September?
During September, expect a variety of temperatures with highs around 25° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Lisbon during September?
Moderate rainfall is anticipated in Lisbon during September, with a total of 50 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Lisbon during September?
The average wind speed in Lisbon during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Lisbon in September?
As you prepare for your trip to Lisbon in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Lisbon, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Lisbon
Explore the daily rainfall trends and prepare for Lisbons September weather 💧
UV exposure in Lisbon during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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