Sintra (Cacém)
September
Weather in Sintra for September 2027
Your guide to Sintra weather in September - trends and predictions
In general, the average temperature in Sintra at the beginning of September is 25.7 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 26.1 °C by the end of September.
With an average of 4 rainy days, Sintra experiences minimal rainfall in September.
Is September a good time to visit Sintra? check out the best time to travel to Sintra page.
✨ Is September a good time to visit Sintra? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
26°/18°
Temperatures
21 km/h
Avg max wind
59 %
Avg humidity
Sintra Weather September
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Temperatures trend during September in Sintra
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September weather in Sintra day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 24° /17° | 0 mm | 6 | |
| 2 Sept. |  Patchy rain possible | 25° /17° | 0.9 mm | 6 | |
| 3 Sept. |  Light rain | 27° /18° | 3.1 mm | 6 | |
| 4 Sept. | Light rain | 27° /18° | 3.6 mm | 5 | |
| 5 Sept. | Light rain shower | 27° /19° | 1.3 mm | 6 | |
| 6 Sept. |  Cloudy | 25° /17° | 0 mm | 6 | |
| 7 Sept. | Patchy rain possible | 26° /18° | 1.3 mm | 6 | |
| 8 Sept. |  Sunny | 24° /17° | 0 mm | 6 | |
| 9 Sept. | Light rain shower | 23° /17° | 0.8 mm | 6 | |
| 10 Sept. | Light rain shower | 25° /17° | 0.3 mm | 6 | |
| 11 Sept. | Sunny | 27° /17° | 0 mm | 7 | |
| 12 Sept. | Sunny | 27° /18° | 0 mm | 7 | |
| 13 Sept. | Sunny | 28° /19° | 0 mm | 7 | |
| 14 Sept. | Sunny | 28° /20° | 0 mm | 7 | |
| 15 Sept. | Sunny | 28° /19° | 0 mm | 7 | |
| 16 Sept. | Patchy rain possible | 27° /18° | 2.2 mm | 7 | |
| 17 Sept. | Light rain | 28° /18° | 3.6 mm | 7 | |
| 18 Sept. | Patchy rain possible | 27° /18° | 0.1 mm | 6 | |
| 19 Sept. | Sunny | 26° /19° | 0.1 mm | 6 | |
| 20 Sept. | Patchy rain possible | 26° /18° | 0.1 mm | 6 | |
| 21 Sept. | Patchy rain possible | 25° /18° | 1.3 mm | 6 | |
| 22 Sept. | Sunny | 25° /17° | 0 mm | 6 | |
| 23 Sept. | Overcast | 27° /17° | 0 mm | 6 | |
| 24 Sept. | Sunny | 27° /18° | 0 mm | 6 | |
| 25 Sept. | Sunny | 27° /18° | 0.1 mm | 6 | |
| 26 Sept. |  Partly cloudy | 26° /18° | 0.8 mm | 5 | |
| 27 Sept. | Patchy rain possible | 24° /17° | 0.6 mm | 5 | |
| 28 Sept. | Sunny | 25° /17° | 0.6 mm | 5 | |
| 29 Sept. | Sunny | 27° /17° | 0.2 mm | 6 | |
| 30 Sept. | Sunny | 27° /18° | 0.6 mm | 6 | |
| Next | |||||
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.
Change Month
Sintra weather in September vs August vs October
Compare September weather in Sintra 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 | 28°/18° | 26°/18° | 23°/17° |
| Rainfall | 11 mm | 21 mm | 65 mm |
| Wind | 22.9 km/h | 20.6 km/h | 19.1 km/h |
| Humidity | 62% | 59% | 66% |
| Rainy days | 2 days | 4 days | 9 days |
| Dry days | 29 days | 26 days | 22 days |
Planning a trip to Sintra? Discover the best time to visit
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 26° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sintra during September?
In September, Sintra can expect light to moderate rainfall, totaling 21.5 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Sintra during September?
The average wind speed in Sintra during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Sintra
Explore the daily rainfall trends and prepare for Sintras September weather 💧
Typically, Sintra has 4 rainy days in September with a total of 21.5 mm of rainfall.
UV exposure in Sintra during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
What to pack to Sintra in September?
Warm & sunny · highs around 26 °C, occasional showers
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.
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