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Weather in Brazil for September 2025

Your guide to Brazil weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Brazil at the beginning of September is 30 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 32.6 °C by the end of September.

    • Rain 🌧️

  • With an average of 3 rainy days, Brazil experiences minimal rainfall in September.

    • More

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

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

Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/19°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
52 %
Avg humidity

Brazil in September average weather

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
31°
2
Partly cloudy
31°
3
Patchy rain possible
33°
4
Sunny
35°
5
Light rain shower
29°
6
Overcast
21°
7
Cloudy
30°
8
Sunny
32°
9
Sunny
33°
10
Cloudy
32°
11
Sunny
33°
12
Sunny
34°
13
Sunny
35°
14
Partly cloudy
31°
15
Overcast
21°
16
Partly cloudy
25°
17
Sunny
26°
18
Sunny
29°
19
Partly cloudy
31°
20
Sunny
34°
21
Sunny
32°
22
Sunny
35°
23
Sunny
35°
24
Sunny
37°
25
Sunny
36°
26
Partly cloudy
38°
27
Patchy rain possible
37°
28
Patchy rain possible
20°
29
Patchy rain possible
28°
30
Patchy rain possible
32°
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Temperatures trend during September in Brazil

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

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 31° /17° 0 mm 8
2 Sept. Partly cloudy
Partly cloudy
 31° /18° 0 mm 9
3 Sept. Patchy rain possible
Patchy rain possible
 33° /18° 1.5 mm 8
4 Sept. Sunny
Sunny
 35° /20° 0.1 mm 9
5 Sept. Light rain shower
Light rain shower
 29° /16° 0.8 mm 8
6 Sept. Overcast
Overcast
 21° /16° 0.4 mm 5
7 Sept. Cloudy
Cloudy
 30° /16° 0.1 mm 8
8 Sept. Sunny
Sunny
 32° /19° 0 mm 9
9 Sept. Sunny
Sunny
 33° /20° 0 mm 9
10 Sept. Cloudy
Cloudy
 32° /19° 0 mm 8
11 Sept. Sunny
Sunny
 33° /19° 0 mm 9
12 Sept. Sunny
Sunny
 34° /20° 0 mm 9
13 Sept. Sunny
Sunny
 35° /21° 0 mm 9
14 Sept. Partly cloudy
Partly cloudy
 31° /18° 0 mm 9
15 Sept. Overcast
Overcast
 21° /16° 0.4 mm 6
16 Sept. Partly cloudy
Partly cloudy
 25° /15° 0.5 mm 7
17 Sept. Sunny
Sunny
 26° /18° 0.6 mm 7
18 Sept. Sunny
Sunny
 29° /18° 0.7 mm 8
19 Sept. Partly cloudy
Partly cloudy
 31° /19° 0.2 mm 8
20 Sept. Sunny
Sunny
 34° /19° 0.1 mm 9
21 Sept. Sunny
Sunny
 32° /19° 0.1 mm 8
22 Sept. Sunny
Sunny
 35° /20° 0 mm 9
23 Sept. Sunny
Sunny
 35° /21° 0 mm 10
24 Sept. Sunny
Sunny
 37° /22° 0 mm 10
25 Sept. Sunny
Sunny
 36° /21° 0 mm 9
26 Sept. Partly cloudy
Partly cloudy
 38° /21° 0 mm 10
27 Sept. Patchy rain possible
Patchy rain possible
 37° /17° 0.9 mm 9
28 Sept. Patchy rain possible
Patchy rain possible
 20° /15° 0.5 mm 5
29 Sept. Patchy rain possible
Patchy rain possible
 28° /16° 0.1 mm 7
30 Sept. Patchy rain possible
Patchy rain possible
 32° /16° 1.3 mm 8
Next
Important Notice
Our weather forecast for Brazil 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 Brazil forecast closer to your planned date for the most up-to-date weather information.

Guide for Brazil in September

In September, Brazil experiences a transition from winter to spring, resulting in varied weather conditions across the country. At the beginning of the month, the southern regions, including cities like Sao Paulo and Rio de Janeiro, typically have mild temperatures ranging from 15° to 25°.

These areas may also experience occasional rainfall, contributing to the lush greenery and vibrant flora that Brazil is known for.

Moving towards the end of September, the northern regions, such as Manaus and the Amazon rainforest, tend to have warmer and more humid weather, with temperatures averaging around 25° to 35°.

These areas may also experience brief, intense rain showers, which are essential for the diverse ecosystems and wildlife found in the Amazon region.

Overall, September in Brazil offers a diverse range of weather conditions, making it an exciting time to visit and explore the country's natural beauty. Whether you prefer the milder climate of the south or the tropical warmth of the north, Brazil has something to offer for every type of traveler.

Have you visited Brazil in September? Share your experience by writing a review.

Brazil in September - FAQ

Is September a good time to visit Brazil?
Yes, September is a good time to traveling to Brazil, read more about the best time to visit Brazil.
What are the expected maximum and minimum temperatures in Brazil during September?
Expect warm days with temperatures around 31°, cooling to mild conditions of 19° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Brazil during September?
Rainfall in Brazil during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 3 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Brazil during September?
The average wind speed in Brazil during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Brazil in September?

As you prepare for your trip to Brazil 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 Brazil, 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
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips

September rainfall patterns in Brazil

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

UV exposure in Brazil during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Regions in Brazil
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BahiaCearáMinas GeraisRio de JaneiroSão Paulo
Top locations in Brazil
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Belo HorizonteFortalezaGuaratinguetáRio de JaneiroSalvadorSão Paulo
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Location coordinates Where is Brazil?

Get accurate weather forecasts for Brazil, located at latitude -23.548 and longitude -46.636. Stay updated with localized weather information tailored for Brazil.

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