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Weather in Sintra for September 2025

Your guide to Sintra weather in September - trends and predictions
  • In general, the average temperature in Sintra at the beginning of September is 23.6 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 26.3 °C by the end of September.

  • Sintra sees moderate rainfall in September, averaging 10 rainy days.

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

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Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
25°/18°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Sintra in September average weather

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Temperatures trend during September in Sintra

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

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Date Weather Temperatures Rain UV More
1 Sept. Overcast
Overcast
25° /17° 0 mm 6
2 Sept. Patchy rain possible
Patchy rain possible
22° /16° 1.8 mm 5
3 Sept. Light rain shower
Light rain shower
22° /15° 6.2 mm 5
4 Sept. Light rain
Light rain
26° /15° 7.2 mm 6
5 Sept. Light rain shower
Light rain shower
24° /16° 2.2 mm 6
6 Sept. Cloudy
Cloudy
22° /16° 0 mm 6
7 Sept. Patchy rain possible
Patchy rain possible
24° /16° 0.3 mm 6
8 Sept. Overcast
Overcast
24° /17° 0 mm 6
9 Sept. Light rain shower
Light rain shower
24° /17° 1.6 mm 6
10 Sept. Light rain shower
Light rain shower
23° /17° 0.5 mm 5
11 Sept. Partly cloudy
Partly cloudy
25° /17° 0 mm 6
12 Sept. Sunny
Sunny
24° /17° 0 mm 6
13 Sept. Sunny
Sunny
29° /17° 0 mm 7
14 Sept. Sunny
Sunny
28° /19° 0 mm 7
15 Sept. Cloudy
Cloudy
29° /19° 0 mm 7
16 Sept. Light rain shower
Light rain shower
28° /19° 4.4 mm 7
17 Sept. Light rain shower
Light rain shower
27° /18° 7.2 mm 6
18 Sept. Patchy rain possible
Patchy rain possible
24° /17° 0.1 mm 6
19 Sept. Sunny
Sunny
24° /16° 0 mm 7
20 Sept. Patchy rain possible
Patchy rain possible
23° /16° 0.3 mm 5
21 Sept. Moderate rain
Moderate rain
22° /18° 2.5 mm 5
22 Sept. Patchy rain possible
Patchy rain possible
23° /16° 0.1 mm 6
23 Sept. Sunny
Sunny
24° /15° 0 mm 6
24 Sept. Sunny
Sunny
25° /16° 0 mm 6
25 Sept. Sunny
Sunny
25° /18° 0.3 mm 6
26 Sept. Partly cloudy
Partly cloudy
25° /17° 1.6 mm 6
27 Sept. Sunny
Sunny
24° /16° 0.1 mm 6
28 Sept. Sunny
Sunny
27° /15° 0 mm 7
29 Sept. Sunny
Sunny
29° /17° 0 mm 8
30 Sept. Sunny
Sunny
29° /19° 0 mm 8
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Important Notice
Our weather forecast for Sintra 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 Sintra forecast closer to your planned date for the most up-to-date weather information.

Sintra in September - FAQ

What are the expected maximum and minimum temperatures in Sintra during September?
During September, expect a variety of temperatures with highs around 25° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sintra during September?
Moderate rainfall is anticipated in Sintra during September, with a total of 67.8 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sintra during September?
The average wind speed in Sintra during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Sintra in September?

As you prepare for your trip to Sintra 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 Sintra, 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 Sintra

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

UV exposure in Sintra during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Sintra?

Get accurate weather forecasts for Sintra, located at latitude 38.767 and longitude -9.298. Stay updated with localized weather information tailored for Sintra.

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