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Weather in San Sebastián for August 2025

Your guide to San Sebastián weather in August - trends and predictions
  • In general, the average temperature in San Sebastián at the beginning of August is 22 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 21.6 °C by the end of August.

  • The climate of San Sebastián in August is notably wet, with an average of 15 rainy days.

  • Is August a good time to visit San Sebastián? check out the best time to travel to San Sebastián page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/15°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
81 %
Avg humidity

San Sebastián in August average weather

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Temperatures trend during August in San Sebastián

See the weather trend as well as the moving average line
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August weather day by day

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Date Weather Temperatures Rain UV More
1 Aug. Patchy rain possible
Patchy rain possible
22° /16° 0.4 mm 5
2 Aug. Patchy rain possible
Patchy rain possible
21° /16° 0 mm 5
3 Aug. Mist
Mist
23° /14° 0 mm 5
4 Aug. Sunny
Sunny
24° /15° 0 mm 6
5 Aug. Mist
Mist
23° /15° 0 mm 5
6 Aug. Light rain shower
Light rain shower
23° /16° 1.8 mm 5
7 Aug. Light rain shower
Light rain shower
18° /17° 1.7 mm 4
8 Aug. Patchy rain possible
Patchy rain possible
22° /18° 0.3 mm 5
9 Aug. Mist
Mist
24° /16° 0 mm 5
10 Aug. Patchy rain possible
Patchy rain possible
26° /17° 0.1 mm 6
11 Aug. Mist
Mist
27° /18° 0 mm 6
12 Aug. Light rain shower
Light rain shower
23° /18° 1.6 mm 5
13 Aug. Light rain shower
Light rain shower
18° /17° 2.1 mm 4
14 Aug. Light rain shower
Light rain shower
19° /14° 1.2 mm 4
15 Aug. Sunny
Sunny
23° /12° 0 mm 6
16 Aug. Sunny
Sunny
24° /14° 0 mm 6
17 Aug. Patchy rain possible
Patchy rain possible
23° /15° 0.7 mm 5
18 Aug. Light rain shower
Light rain shower
21° /16° 2.3 mm 5
19 Aug. Sunny
Sunny
24° /15° 0 mm 6
20 Aug. Light drizzle
Light drizzle
23° /15° 1.5 mm 5
21 Aug. Patchy rain possible
Patchy rain possible
20° /16° 0.8 mm 5
22 Aug. Patchy rain possible
Patchy rain possible
22° /15° 0.1 mm 5
23 Aug. Partly cloudy
Partly cloudy
25° /16° 0 mm 7
24 Aug. Light rain shower
Light rain shower
24° /15° 5.8 mm 5
25 Aug. Patchy rain possible
Patchy rain possible
20° /13° 0.4 mm 5
26 Aug. Sunny
Sunny
22° /12° 0 mm 6
27 Aug. Patchy rain possible
Patchy rain possible
23° /15° 0 mm 5
28 Aug. Mist
Mist
22° /15° 0 mm 5
29 Aug. Light rain shower
Light rain shower
21° /15° 4.7 mm 5
30 Aug. Light rain shower
Light rain shower
21° /15° 2.6 mm 5
31 Aug. Partly cloudy
Partly cloudy
22° /16° 1.8 mm 6
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Important Notice
Our weather forecast for San Sebastián in August 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 San Sebastián forecast closer to your planned date for the most up-to-date weather information.

San Sebastián in August - FAQ

What are the expected maximum and minimum temperatures in San Sebastián during August?
During August, expect a variety of temperatures with highs around 22° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Sebastián during August?
In August, San Sebastián can expect light to moderate rainfall, totaling 33.3 mm across approximately 15 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in San Sebastián during August?
The average wind speed in San Sebastián during August is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to San Sebastián in August?

As you prepare for your trip to San Sebastián in August, 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 San Sebastián, during August, 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

August rainfall patterns in San Sebastián

Explore the daily rainfall trends and prepare for San Sebastiáns August weather 💧

UV exposure in San Sebastián during August

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

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Location coordinates Where is San Sebastián?

Get accurate weather forecasts for San Sebastián, located at latitude 43.567 and longitude -5.9. Stay updated with localized weather information tailored for San Sebastián.

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