2026 Climate Averages

Weather: São Paulo — September

The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.

🌟 Climate Overview

September is an excellent time to visit São Paulo. Warm weather with highs of 27°C—great for outdoor activities. Temperatures vary significantly between day and night—layering is recommended. As peak season, expect higher prices and more tourists.

7.6
GoTripzi Score Great

Based on weather comfort, crowds, prices, and activity options

Avg High

27°C

Avg Low

16°C

Rainy days

6days

Daylight

11.9h

Rainfall

44mm

Sunshine

9.4h/day

Humidity

71%

Humid
Sun Strength

7.6

Very High
Wind

18 km/h (gusts 38)

Is September a good time to visit São Paulo?

The weather is near-perfect with ideal temperatures and minimal rain.

Now

--

Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Travel Context

  • Crowds
    Very Busy
  • Travel Costs Shoulder Rates

Daylight

Sunrise

06:05

Sunset

18:01

11.9h daylight

Visiting São Paulo in September: Pros & Cons

Pros

  • Comfortable temperatures for sightseeing
  • Abundant sunshine for beach and outdoor fun
  • One of the best months to visit

Cons

  • Peak season — expect crowds and higher prices

Things to Do in September

Recommended for This Weather

🚶 Walking tours & sightseeing
🚲 Cycling & bike tours
🥾 Hiking & nature trails
🍜 Food tours & culinary experiences
🎭 Cultural tours & local experiences

São Paulo Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan 28°C 19°C 23d (213mm) 9.3h
81% Very Humid
7.9 Very High
Wet
Feb 28°C 19°C 19d (184mm) 9.3h
81% Very Humid
7.8 Very High
Wet
Mar 28°C 19°C 15d (125mm) 9.7h
80% Very Humid
7.6 Very High
Wet
Apr 25°C 17°C 9d (57mm) 9h
80% Very Humid
6.5 High
Excellent
May 24°C 14°C 5d (35mm) 8.6h
77% Humid
5.6 High
Excellent
Jun 23°C 13°C 6d (37mm) 8.1h
77% Humid
4.9 Moderate
Good
Jul 23°C 12°C 3d (14mm) 8.7h
73% Humid
5.6 High
Good
Aug 24°C 13°C 5d (43mm) 8.7h
72% Humid
6.3 High
Good
Sep Current 27°C 16°C 6d (44mm) 9.4h
71% Humid
7.6 Very High
Excellent
Oct 26°C 17°C 16d (135mm) 8.5h
79% Humid
7.4 Very High
Excellent
Nov 26°C 17°C 13d (107mm) 10h
77% Humid
8.8 Very High
Wet
Dec 27°C 19°C 20d (166mm) 9.9h
79% Humid
8.4 Very High
Wet

⚖️Find Your Ideal Month

Adjust the sliders to weight what matters most to you.

5
3
3
Your Best MonthJanScore: 8.5
1.Jan
8.52.Feb
8.53.Mar
8.54.Nov
8.55.Dec
8.56.Jul
7.97.Jun
7.48.Aug
7.49.Apr
5.610.May
5.611.Sep
5.612.Oct
4.7

Where to Stay

See hotels, apartments & rentals around São Paulo – live prices from Booking.com, Expedia, Vrbo and more

Open map in new tab

São Paulo

Latin America's mega-city for gastronomy and culture. Discover Avenida Paulista.

View Full Destination Guide

What to Pack for September

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces. Pack a compact umbrella or light rain jacket for occasional showers. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.

Moderate Very Busy

🎒Personalized Packing List

Tell us about your trip and we'll create a custom packing list based on the weather.

Your Packing List

📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to São Paulo?

🔥 Peak season — book early for best rates

Frequently Asked Questions

Is September a good time to visit São Paulo?
September is typically excellent for visiting São Paulo, with average highs of 27°C and around 6 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in São Paulo in September?
Evenings in São Paulo during September are mild at 16°C. A light cardigan or long sleeves for evenings is usually enough. Outdoor dining remains comfortable, making it a great time to enjoy rooftop bars and terrace restaurants.
What should I pack for São Paulo in September?
With highs of 27°C and lows of 16°C in September, we recommend: Compact umbrella, Lightweight breathable clothes, Sunscreen SPF 30+, Sun hat. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in São Paulo in September?
São Paulo typically sees around 6 rainy days in September. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
How many hours of daylight are there in São Paulo in September?
In September, São Paulo gets approximately 11.9 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is September peak season in São Paulo?
Yes, September is peak season in São Paulo. Expect higher prices for accommodation and more crowds at popular attractions, but also the best weather conditions. Book hotels and major attractions in advance to secure availability and better rates.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: America/Sao_Paulo)

Last Updated: February 2026

More São Paulo Guides

Best Time to Visit

Coming soon

Things to Do

Coming soon

Where to Stay

Best neighborhoods and hotel recommendations

Find Hotels →

Cost & Budget

Daily costs, money-saving tips, and budget breakdown

Read Guide →

Itineraries

Coming soon

Overview

Complete travel guide for São Paulo: top things to do, itineraries, and typical costs.

Read Full Guide →