What is the weather like in Brasília in September?

Expect temperatures between 18°C and 30°C with 10% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Brasília in September?

Brasília in September scores 66/100 based on 30 years of climate data. Great time to visit - recommended.

Who should visit Brasília in September?

September in Brasília is ideal for: Families with children, Outdoor enthusiasts, Photographers, Cultural tourists, Honeymoon couples.

Brasília Weather in September | 30-Year Forecast

Avg High

30°C

Hottest around day 14

Avg Low

18°C

Coolest around day 1

Rainy Days

0days

10% avg rain chance

Sunshine

8hrs/day

Autumn season

Essential Travel Info for Brasília

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

BRL

R$ Brazilian real

Language

Portuguese

Driving

Right side

Safety

Moderate Safety

GPI: 2.465

Travel Intelligence

Exclusive flight analytics & health data for Brasília

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate

53/ 100

Traffic Index

Balanced traffic

Peak Daily Arrivals

slots per day

Peak

May

Low

Feb

Monthly Traffic Distribution

172

Jan

144

Feb

167

Mar

231

Apr

231

May

152

Jun

172

Jul

174

Aug

178

Sep

172

Oct

145

Nov

171

Dec

Traffic Level

Low Season

Key Connections

Rio de Janeiro Santos Dumont (SDU)

São Paulo Guarulhos - Governador André Franco Montoro (GRU)

Campinas Viracopos (VCP)

Recife Guararapes - Gilberto Freyre (REC)

Belo Horizonte Tancredo Neves (CNF)

Health & Safety Advisory

CDC travel health recommendations

9 Recommendations

COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Chikungunya

There iselevated chikungunya riskin Brazil.Chikungunya vaccinationmay be considered for people traveling or moving to this location if they are planning to stay for an extended period of time (for example, 6 months or more).

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to Brazil.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Brazil. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Brazil.

Malaria

CDC recommends that travelers going to certain areas of Brazil take prescription medicine to prevent malaria. Depending on the medicine you take, you will need to start taking this medicine multiple days before your trip, as well as during and after your trip. Talk to your doctor about which malaria medication you should take.Transmission areasAll areas in the states of Acre, Amapá, Amazonas, Rondônia, and RoraimaPresent in the states of Maranhão, Mato Grosso, and Pará, but rare cases in their capital cities (São Luis [capital of Maranhão], Cuiabá [capital of Mato Grosso], Belém [capital of Pará])Rare cases and sporadic foci of transmission in rural and forested areas in the states of Espírito Santo, Goiás, Minas Gerais, Mato Grosso do Sul, Piauí, Rio de Janeiro, São Paolo, and TocantinsNo malaria transmission in the cities of Brasília (the capital), Rio de Janeiro, or São PaoloNo malaria transmission at Iguaçu FallsDrug resistanceChloroquineSpeciesP. vivax(90%)P. falciparum(10%)Recommended chemoprophylaxisAtovaquone-proguanil, doxycycline, mefloquine, tafenoquine2Areas with rare cases: No chemoprophylaxis recommended (insect bite precautions and mosquito avoidance only)4Updated April 23, 2025See footnotes

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

+3 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Brasília?

👍Great time to visit - recommended(66/100)

Short Answer

Brasília shines in September with 30°C pleasant temperatures and minimal 10% rain chance. Expect 10.8 hours of sunshine daily - pack light layers for evenings.

Decision Factors

Vaccinations required

Yellow Fever

Excellent dry conditions

Only 10% rain probability - ideal for outdoor activities

Health precautions needed

Be aware of: Leptospirosis, Melioidosis, Schistosomiasis

Plenty of sunshine

10.8h of sunshine daily

Shoulder season - balanced conditions

77% of peak - good value with moderate crowds

Good For

👨‍👩‍👧‍👦
Families with children
Comfortable 29.7°C temperatures and low 10% rain risk
🥾
Outdoor enthusiasts
Ideal hiking conditions: 29.7°C, 10% rain chance
📸
Photographers
10.8h sunshine, 61% clear skies for golden hour shots
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💑
Honeymoon couples
Wedding score 99/100 with romantic weather conditions

Who Should Avoid

Suitable for most traveler types

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Brasília in September averages 30°C with 10% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Brasília in September

What are the temperatures in Brasília in September?

Daytime highs average 30°C, nights drop to 18°C. Temperatures remain fairly consistent.

How many rainy days in Brasília in September?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Brasília in September?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is September peak season in Brasília?

This is shoulder season—moderate prices and manageable crowds.

Brasília Weather in September

Brasília September Weather Calendar