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Weather in Portugalete for September 2025

Your guide to Portugalete weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Portugalete has been nearly identical to the historical average, with a temperature of 22.5 °C (showing only a slight deviation of 0.3 °C).

  • The forecast for the upcoming days in Portugalete predicts a temperature of 23.3 °C, which is slightly above the historical average.

  • In general, the average temperature in Portugalete at the beginning of September is 24.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 23 °C by the end of September.

    • Rain 🌧️

  • Portugalete in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 135.9 mm.

    • More

  • Is September a good time to visit Portugalete? check out the best time to travel to Portugalete page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
11
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/14°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Portugalete Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
21°
2
Patchy rain possible
25°
3
Overcast
27°
4
Light rain shower
21°
5
Sunny
23°
6
Sunny
33°
7
Patchy rain possible
24°
8
Light rain shower
17°
9
Patchy rain possible
20°
10
Patchy rain possible
20°
11
Patchy rain possible
22°
12
Moderate or heavy rain shower
18°
13
Patchy rain possible
18°
14
Partly cloudy
19°
15
Patchy rain possible
20°
16
Patchy rain possible
22°
17
Sunny
25°
18
Sunny
25°
19
Partly cloudy
30°
20
Patchy rain possible
28°
21
Patchy rain possible
20°
22
Patchy rain possible
18°
23
Patchy rain possible
22°
24
Sunny
26°
25
Patchy rain possible
19°
26
Partly cloudy
24°
27
Patchy rain possible
27°
28
Patchy rain possible
20°
29
Overcast
24°
30
Patchy rain possible
21°

Temperatures trend during September in Portugalete

See the weather trend as well as the moving average line

September weather in Portugalete day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 21° /14° 1.1 mm 5
2 Sept. Patchy rain possible
Patchy rain possible
 25° /14° 0 mm 6
3 Sept. Overcast
Overcast
 27° /16° 0.5 mm 6
4 Sept. Light rain shower
Light rain shower
 21° /15° 1.7 mm 5
5 Sept. Sunny
Sunny
 23° /13° 0 mm 6
6 Sept. Sunny
Sunny
 33° /16° 0 mm 8
7 Sept. Patchy rain possible
Patchy rain possible
 24° /17° 0.9 mm 5
8 Sept. Light rain shower
Light rain shower
 17° /15° 9.9 mm 4
9 Sept. Patchy rain possible
Patchy rain possible
 20° /14° 1.8 mm 5
10 Sept. Patchy rain possible
Patchy rain possible
 20° /14° 2.1 mm 5
11 Sept. Patchy rain possible
Patchy rain possible
 22° /14° 2.9 mm 5
12 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 18° /14° 17.6 mm 4
13 Sept. Patchy rain possible
Patchy rain possible
 18° /13° 1.2 mm 5
14 Sept. Partly cloudy
Partly cloudy
 19° /10° 0 mm 5
15 Sept. Patchy rain possible
Patchy rain possible
 20° /17° 2.8 mm 0.3
16 Sept. Patchy rain possible
Patchy rain possible
 22° /15° 0.3 mm 1.1
17 Sept. Sunny
Sunny
 25° /15° 0 mm 1.4
18 Sept. Sunny
Sunny
 25° /16° 0 mm 1.2
19 Sept. Partly cloudy
Partly cloudy
 30° /18° 0 mm 6
20 Sept. Patchy rain possible
Patchy rain possible
 28° /18° 0.7 mm 5
21 Sept. Patchy rain possible
Patchy rain possible
 20° /16° 1 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 18° /15° 1.8 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
 22° /15° 0.2 mm 4
24 Sept. Sunny
Sunny
 26° /16° 0 mm 5
25 Sept. Patchy rain possible
Patchy rain possible
 19° /16° 0.5 mm 4
26 Sept. Partly cloudy
Partly cloudy
 24° /15° 0 mm 5
27 Sept. Patchy rain possible
Patchy rain possible
 27° /18° 0.1 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
 20° /16° 0.7 mm 4
29 Sept. Overcast
Overcast
 24° /10° 0 mm 5
30 Sept. Patchy rain possible
Patchy rain possible
 21° /14° 0.1 mm 5
Next
Important Notice
Our weather forecast for Portugalete 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 Portugalete forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Portugalete weather in September vs August vs October

Compare September weather in Portugalete with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Moderate or heavy rain shower
Moderate or heavy rain shower
Temperatures25°/17°21°/14°20°/13°
Rainfall27 mm136 mm202 mm
Wind14.1 km/h16.2 km/h15.9 km/h
Humidity73%74%78%
Rainy days11 days19 days20 days
Dry days20 days11 days11 days

Planning a trip to Portugalete? Discover the best time to visit

Portugalete in September - FAQ

What are the expected maximum and minimum temperatures in Portugalete during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Portugalete during September?
Significant rainfall exceeding 135.9 mm is expected in Portugalete during September, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Portugalete during September?
The average wind speed in Portugalete during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Portugalete in September?

As you prepare for your trip to Portugalete 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 Portugalete, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long 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
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

September rainfall patterns in Portugalete

Explore the daily rainfall trends and prepare for Portugaletes September weather 💧

UV exposure in Portugalete during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Portugalete?

Get accurate weather forecasts for Portugalete, located at latitude 43.321 and longitude -3.021. Stay updated with localized weather information tailored for Portugalete.

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