Guaratinguetá
September
Weather in Guaratinguetá for September 2025
Your guide to Guaratinguetá weather in September - trends and predictions
In general, the average temperature in Guaratinguetá at the beginning of September is 34.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 35.1 °C by the end of September.
With an average of 4 rainy days, Guaratinguetá experiences minimal rainfall in September.
Is September a good time to visit Guaratinguetá? check out the best time to travel to Guaratinguetá page.
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Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
34°/14°
Temperatures
11 km/h
Avg max wind
53 %
Avg humidity
Guaratinguetá in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  34° | 2 33° | 3 34° | 4 36° | 5  36° | 6 30° | 7 36° |
| 8 36° | 9 35° | 10 36° | 11  36° | 12 37° | 13 37° | 14 37° |
| 15  33° | 16  26° | 17 21° | 18 28° | 19 33° | 20 37° | 21 34° |
| 22 34° | 23 35° | 24 37° | 25 38° | 26 38° | 27 38° | 28 28° |
| 29 32° | 30 35° |
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Temperatures trend during September in Guaratinguetá
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 34° /12° | 0 mm | 9 | |
| 2 Sept. | Sunny | 33° /13° | 0 mm | 9 | |
| 3 Sept. | Sunny | 34° /10° | 0 mm | 9 | |
| 4 Sept. | Sunny | 36° /13° | 0 mm | 10 | |
| 5 Sept. | Partly cloudy | 36° /14° | 0 mm | 10 | |
| 6 Sept. | Partly cloudy | 30° /14° | 0 mm | 9 | |
| 7 Sept. | Sunny | 36° /12° | 0 mm | 10 | |
| 8 Sept. | Sunny | 36° /15° | 0 mm | 10 | |
| 9 Sept. | Sunny | 35° /13° | 0 mm | 10 | |
| 10 Sept. | Sunny | 36° /13° | 0 mm | 10 | |
| 11 Sept. | Overcast | 36° /15° | 0 mm | 9 | |
| 12 Sept. | Sunny | 37° /14° | 0 mm | 10 | |
| 13 Sept. | Sunny | 37° /15° | 0 mm | 10 | |
| 14 Sept. | Sunny | 37° /15° | 0 mm | 10 | |
| 15 Sept. | Mist | 33° /15° | 0 mm | 8 | |
| 16 Sept. | Patchy rain possible | 26° /16° | 0.1 mm | 7 | |
| 17 Sept. | Patchy rain possible | 21° /15° | 0.2 mm | 6 | |
| 18 Sept. | Patchy rain possible | 28° /13° | 4 mm | 7 | |
| 19 Sept. | Patchy rain possible | 33° /11° | 0.2 mm | 8 | |
| 20 Sept. | Patchy rain possible | 37° /13° | 1.4 mm | 9 | |
| 21 Sept. | Patchy rain possible | 34° /13° | 4.4 mm | 8 | |
| 22 Sept. | Sunny | 34° /13° | 0 mm | 9 | |
| 23 Sept. | Sunny | 35° /14° | 0 mm | 10 | |
| 24 Sept. | Sunny | 37° /15° | 0 mm | 10 | |
| 25 Sept. | Sunny | 38° /15° | 0 mm | 10 | |
| 26 Sept. | Sunny | 38° /16° | 0 mm | 10 | |
| 27 Sept. | Partly cloudy | 38° /17° | 0 mm | 10 | |
| 28 Sept. | Light rain shower | 28° /17° | 1.6 mm | 7 | |
| 29 Sept. | Partly cloudy | 32° /14° | 0 mm | 9 | |
| 30 Sept. | Mist | 35° /13° | 0 mm | 9 | |
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Important Notice
Our weather forecast for Guaratinguetá 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 Guaratinguetá forecast closer to your planned date for the most up-to-date weather information.
Guaratinguetá in September - FAQ
What are the expected maximum and minimum temperatures in Guaratinguetá during September?
Expect warm days with temperatures around 34°, cooling to mild conditions of 14° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Guaratinguetá during September?
Expect minimal rainfall in Guaratinguetá during September, with a total of 11.9 mm over approximately 4 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Guaratinguetá during September?
The average wind speed in Guaratinguetá during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Guaratinguetá in September?
As you prepare for your trip to Guaratinguetá 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 Guaratinguetá, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Footwear
- Sandals/Flip-flops: Comfortable for warm climates
- 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
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Guaratinguetá
Explore the daily rainfall trends and prepare for Guaratinguetás September weather 💧
UV exposure in Guaratinguetá during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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