What is the weather like in Fortaleza in September?

Expect temperatures between 25°C and 30°C with 1% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Fortaleza in September?

Fortaleza in September scores 65/100 based on 30 years of climate data. Recommended for planning your trip.

Who should visit Fortaleza in September?

September in Fortaleza is ideal for: Beach lovers, Photographers, Honeymoon couples, Business travelers, Adventure seekers.

Fortaleza Weather in September | 30-Year Forecast

Avg High

30°C

Hottest around day 9

Avg Low

25°C

Coolest around day 1

Rainy Days

0days

1% avg rain chance

Sunshine

8hrs/day

Autumn season

Sea Temperature in September

Atlantic Ocean(Oceano Atlântico)

27.5°C

Monthly Average

Water Feel

🌴Tropical

Perfect for swimming and water sports

Swim Rating

✅Excellent for swimming

Based on average sea surface temperature

Body of Water

Atlantic Ocean

Oceano Atlântico

Fortaleza coastline

Essential Travel Info for Fortaleza

🗓️ 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 Fortaleza

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

Low Traffic

28/ 100

Traffic Index

Quieter airport

Peak Daily Arrivals

slots per day

Peak

May

Low

Feb

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

São Paulo Guarulhos - Governador André Franco Montoro (GRU)

Rio de Janeiro RIOgaleão – Tom Jobim (GIG)

Brasília Presidente Juscelino Kubistschek (BSB)

Recife Guararapes - Gilberto Freyre (REC)

Belém Júlio Cezar Ribeiro (BEL)

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 Fortaleza?

👍Recommended for planning your trip(65/100)

Short Answer

Expect challenging weather in Fortaleza during September - 30°C combined with 70% humidity creates a heat index of 36°C. Air conditioning and strategic planning are essential.

Decision Factors

Vaccinations required

Yellow Fever

Feels significantly hotter than 30.4°C

Heat index: 36°C due to 70% humidity

Warm tropical seas

27.5°C sea temperature - Tropical Bath

Rough sea conditions

1.63m average wave height - Surfers Only

Excellent dry conditions

Only 1% rain probability - ideal for outdoor activities

Health precautions needed

Be aware of: Leptospirosis, Melioidosis, Schistosomiasis

Good For

🏖️
Beach lovers
27.5°C warm seas and 1% rain probability
📸
Photographers
11h sunshine, 74% clear skies for golden hour shots
💑
Honeymoon couples
Wedding score 93/100 with romantic weather conditions
💼
Business travelers
Climate-controlled meetings unaffected by weather
🎯
Adventure seekers
1.63m waves - good for surfing and water sports

Who Should Avoid

👴
Elderly travelers
Heat index of 36°C poses health risks
🌡️
Heat-sensitive visitors
36°C feels-like temperature creates discomfort

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Fortaleza in September averages 30°C with 1% precipitation probability."

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

Frequently Asked Questions: Fortaleza in September

What are the temperatures in Fortaleza in September?

Daytime highs average 30°C, nights drop to 25°C. Temperatures remain fairly consistent.

How many rainy days in Fortaleza in September?

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

What to wear in Fortaleza in September?

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

Is September peak season in Fortaleza?

This is shoulder season—moderate prices and manageable crowds.

Fortaleza Weather in September