Weather in Porto for September 2027
In general, the average temperature in Porto at the beginning of September is 23.2 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 21.8 °C by the end of September.
Porto experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 67.1 mm.
Is September a good time to visit Porto? check out the best time to travel to Porto page.
✨ Is September a good time to visit Porto? – Ask the AI Weatherman
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Porto Weather September
Temperatures trend during September in Porto
September weather in Porto day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain | 22° /16° | 2.7 mm | 6 | |
| 2 Sept. |  Patchy rain possible | 22° /16° | 0.2 mm | 6 | |
| 3 Sept. | Patchy rain possible | 24° /16° | 1.7 mm | 6 | |
| 4 Sept. | Patchy rain possible | 24° /17° | 1.2 mm | 5 | |
| 5 Sept. | Light rain | 25° /17° | 3.9 mm | 6 | |
| 6 Sept. | Patchy rain possible | 23° /17° | 1.3 mm | 5 | |
| 7 Sept. | Light rain | 23° /17° | 3.3 mm | 6 | |
| 8 Sept. | Patchy rain possible | 22° /16° | 2.3 mm | 5 | |
| 9 Sept. | Light rain | 22° /16° | 3.4 mm | 5 | |
| 10 Sept. | Patchy rain possible | 22° /17° | 1.2 mm | 6 | |
| 11 Sept. |  Partly cloudy | 24° /16° | 0.4 mm | 6 | |
| 12 Sept. | Patchy rain possible | 24° /17° | 1.9 mm | 6 | |
| 13 Sept. |  Moderate rain | 24° /18° | 11.5 mm | 6 | |
| 14 Sept. | Light rain | 24° /18° | 4.7 mm | 6 | |
| 15 Sept. | Light rain | 23° /17° | 3.8 mm | 6 | |
| 16 Sept. |  Sunny | 24° /17° | 0.6 mm | 6 | |
| 17 Sept. | Patchy rain possible | 24° /17° | 2.3 mm | 6 | |
| 18 Sept. | Sunny | 25° /17° | 0.9 mm | 6 | |
| 19 Sept. | Sunny | 24° /17° | 0.2 mm | 6 | |
| 20 Sept. | Sunny | 24° /17° | 0.8 mm | 6 | |
| 21 Sept. | Light rain | 23° /17° | 2.7 mm | 5 | |
| 22 Sept. | Sunny | 23° /16° | 0.1 mm | 5 | |
| 23 Sept. | Patchy rain possible | 23° /16° | 1.1 mm | 5 | |
| 24 Sept. | Patchy rain possible | 22° /15° | 1.8 mm | 5 | |
| 25 Sept. | Light rain | 21° /15° | 3 mm | 5 | |
| 26 Sept. | Light rain | 22° /15° | 3.4 mm | 5 | |
| 27 Sept. | Patchy rain possible | 21° /15° | 0.4 mm | 5 | |
| 28 Sept. | Sunny | 22° /16° | 0.6 mm | 5 | |
| 29 Sept. | Light rain | 23° /16° | 5.1 mm | 5 | |
| 30 Sept. | Partly cloudy | 23° /16° | 0.6 mm | 5 | |
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Porto weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Patchy rain possible |
| Temperatures | 24°/17° | 23°/16° | 21°/15° |
| Rainfall | 17 mm | 67 mm | 230 mm |
| Wind | 18.8 km/h | 18.1 km/h | 18.7 km/h |
| Humidity | 71% | 67% | 71% |
| Rainy days | 2 days | 8 days | 13 days |
| Dry days | 29 days | 22 days | 18 days |
Planning a trip to Porto? Discover the best time to visit
Porto in September - FAQ
What are the expected maximum and minimum temperatures in Porto during September?
How much rainfall should be expected in Porto during September?
What are the typical wind conditions in Porto during September?
September rainfall patterns in Porto
UV exposure in Porto during September
What to pack to Porto in September?
Mild · highs around 23 °C, frequent showers
As you prepare for your trip to Porto 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 Porto, during September, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
Where is Porto?Get accurate weather forecasts for Porto, located at latitude 41.15 and longitude -8.611. Stay updated with localized weather information tailored for Porto.