Portimão
September
Weather in Portimão for September 2026
Your guide to Portimão weather in September - trends and predictions
In general, the average temperature in Portimão at the beginning of September is 25 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 24.6 °C by the end of September.
With an average of 4 rainy days, Portimão experiences minimal rainfall in September.
Is September a good time to visit Portimão? check out the best time to travel to Portimão page.
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Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
25°/17°
Temperatures
22 km/h
Avg max wind
68 %
Avg humidity
Portimão Weather September
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Temperatures trend during September in Portimão
See the weather trend as well as the moving average line
September weather in Portimão day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 26° /16° | 0 mm | 6 | |
| 2 Sept. |  Light rain shower | 25° /16° | 1.1 mm | 6 | |
| 3 Sept. | Sunny | 25° /15° | 2.3 mm | 6 | |
| 4 Sept. | Light rain shower | 25° /15° | 1.6 mm | 6 | |
| 5 Sept. | Patchy rain possible | 26° /17° | 0 mm | 6 | |
| 6 Sept. |  Cloudy | 24° /16° | 0 mm | 6 | |
| 7 Sept. | Sunny | 24° /15° | 0 mm | 6 | |
| 8 Sept. |  Partly cloudy | 24° /16° | 0 mm | 6 | |
| 9 Sept. | Light rain shower | 24° /17° | 0.2 mm | 6 | |
| 10 Sept. |  Mist | 24° /17° | 0 mm | 6 | |
| 11 Sept. | Sunny | 27° /16° | 0 mm | 6 | |
| 12 Sept. | Sunny | 27° /16° | 0 mm | 7 | |
| 13 Sept. | Sunny | 28° /17° | 0 mm | 7 | |
| 14 Sept. | Sunny | 27° /18° | 0 mm | 7 | |
| 15 Sept. | Sunny | 26° /18° | 0 mm | 6 | |
| 16 Sept. | Sunny | 26° /18° | 1.8 mm | 6 | |
| 17 Sept. | Sunny | 25° /18° | 0.2 mm | 6 | |
| 18 Sept. | Partly cloudy | 24° /18° | 0.1 mm | 6 | |
| 19 Sept. | Sunny | 25° /17° | 0 mm | 6 | |
| 20 Sept. | Sunny | 25° /17° | 0 mm | 6 | |
| 21 Sept. | Light rain shower | 23° /16° | 0.6 mm | 5 | |
| 22 Sept. | Sunny | 23° /14° | 0 mm | 6 | |
| 23 Sept. | Sunny | 25° /14° | 0 mm | 6 | |
| 24 Sept. | Sunny | 24° /16° | 0 mm | 6 | |
| 25 Sept. | Sunny | 24° /17° | 0.1 mm | 6 | |
| 26 Sept. | Partly cloudy | 24° /18° | 0.1 mm | 6 | |
| 27 Sept. | Partly cloudy | 24° /16° | 0 mm | 6 | |
| 28 Sept. | Sunny | 24° /16° | 0.7 mm | 6 | |
| 29 Sept. | Sunny | 26° /16° | 0 mm | 6 | |
| 30 Sept. | Sunny | 26° /18° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Portimão 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 Portimão forecast closer to your planned date for the most up-to-date weather information.
Change Month
Portimão weather in September vs August vs October
Compare September weather in Portimão with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Patchy rain possible |
| Temperatures | 29°/18° | 25°/17° | 23°/17° |
| Rainfall | 0 mm | 9 mm | 70 mm |
| Wind | 24.2 km/h | 21.8 km/h | 20.4 km/h |
| Humidity | 62% | 68% | 74% |
| Rainy days | 0 days | 4 days | 11 days |
| Dry days | 31 days | 26 days | 20 days |
Planning a trip to Portimão? Discover the best time to visit
Portimão in September - FAQ
What are the expected maximum and minimum temperatures in Portimão 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 Portimão during September?
Rainfall in Portimão during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 4 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Portimão during September?
The average wind speed in Portimão during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Portimão in September?
As you prepare for your trip to Portimão 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 Portimão, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable trousers
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
September rainfall patterns in Portimão
Explore the daily rainfall trends and prepare for Portimãos September weather 💧
Typically, Portimão has 4 rainy days in September with a total of 8.6 mm of rainfall.
UV exposure in Portimão during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
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