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Arraial do Cabo
Arraial do Cabo · Rio de Janeiro Good time to visit Spring Shoulder season

Arraial do Cabo in September

Short answer

In September, Arraial do Cabo averages highs of 24 °C (75 °F) and lows of 19 °C (66 °F), with about 50 mm of rain spread over roughly 7 days. September has moderate rainfall, usually in quick showers that do not spoil the whole day. Crowds tend to be moderate this month.

Climate · INMET (updated 2026)
Most reviewed activity in Arraial do CaboArraial do Cabo Boat Trip★ 8.7 · 20 reviews · from US$ 56 · via CivitatisSee dates and price →
Temperature
24 / 19 °C
high / low
Rain
50 mm
7 days
Daylight
11h58
sunset at 17:42
Crowds
Moderate
1 public holiday

What to expect in Arraial do Cabo in September

Myllena Vieira, editor at Visite
Editor's tip

September is spring in Arraial do Cabo. In Brazil the seasons are the reverse of those in the Northern Hemisphere. Temperatures are pleasant, with highs of 24 °C (75 °F) and nights that still call for a light jacket. Crowds sit somewhere in the middle, with peaks on public holidays. Outside those dates, you can enjoy the place at an easy pace and spend less. Rain, when it comes, is usually brief and does not spoil the day.

Myllena Vieira · Editor at Visite
Crowds
Crowd level: moderate

Moderate crowds, with peaks on public holidays. Outside those dates, you can enjoy the place at a calmer pace.

Prices
Rates: moderate · ~R$ 351

Moderate prices outside public holidays, which push rates and crowds up. The average nightly rate for lodging in Arraial do Cabo is around R$ 351 (Brazilian reais), depending on the date.

Tours and tickets

Things to do in Arraial do Cabo in September

booking on Civitatis
Arraial do Cabo Boat Trip
8.7· 20 reviews

Arraial do Cabo Boat Trip

On this boat trip around Arraial do Cabo you'll discover places such as the Ilha do Farol, Praia do Forno or the Blue Grotto.

4 h
from US$ 56
Book →
Arraial do Cabo Quad Tour
6· 4 reviews

Arraial do Cabo Quad Tour

If you're in Arraial do Cabo and you want to check out its main natural attractions in a fun and original way, don't miss this quad tour. You'll have a blast!

2 h
from US$ 99
Book →
Arraial do Cabo Buggy Tour
5· 2 reviews

Arraial do Cabo Buggy Tour

On this buggy tour of Arraial do Cabo, we'll drive through the charming spots of this coastal city of Rio de Janeiro and admire breathtaking landscapes!

2 h
from US$ 34
Book →
Arubinha Buggy Tour
10· 1 review

Arubinha Buggy Tour

Looking for an adrenaline rush? In this buggy tour in Arubinha we'll ride through the beautiful natural area of Arraial do Cabo next to Araruama Lagoon.

4 h
from US$ 118
Book →
Arraial do Cabo Diving Introduction
10· 1 review

Arraial do Cabo Diving Introduction

Explore the seabed that attracts divers from all over the world with this introduction to diving in Arraial do Cabo. The perfect place to learn!

3 h 30 min
from US$ 155
Book →
Arraial do Cabo Hiking Tour
10· 1 review

Arraial do Cabo Hiking Tour

Combine sport and nature in this hiking tour through the beaches and viewpoints of Arraial do Cabo. We'll enjoy the city from different perspectives

3 h
from US$ 24
Book →
See all activities in Arraial do Cabo
Where to stay

Hotels in Arraial do Cabo

In September, demand in Arraial do Cabo is moderate: most hotels have room, but public holidays fill them up. Compare rates and book a few weeks ahead.

Sophia 2 Residence Inn in Arraial do Cabo 9.5 ★★★★★ · 12 reviews Sophia 2 Residence Inn See on Booking → Mediterrane Hotel by Castelo Itaipava in Arraial do Cabo 8.4 ★★★★ · 42 reviews Mediterrane Hotel by Castelo Itaipava See on Booking → Pousada Porto Praia in Arraial do Cabo 8.4 ★★★ · 17 reviews Pousada Porto Praia See on Booking → Pousada da Prainha in Arraial do Cabo 10 ★★★★ · 1 review Pousada da Prainha See on Booking →
See all hotels in Arraial do Cabo

Rates change with the dates: confirm the price on Booking.com.

What happens in September

No major fixed festivals in September, but public holidays (Independence Day) bring more people to the destination.

Public holidays in September: Independence Day (07/09). Expect more people and higher prices around these dates.

What to pack in September

Light clothing for the day · highs of 24 °C (75 °F) Sunscreen and sunglasses · strong sun on the tours Quick-dry clothing · humidity of 81% Comfortable walking shoes · you will be on foot much of the day
Looking for better weather?

Where the weather is good in September

These destinations have the best weather comfort for September, scored with the same calculation of rain, heat and humidity. Tap to see what the month is like in each one.

Diamantina 86
Diamantina
Minas Gerais · see September →
Belo Horizonte 79
Belo Horizonte
Minas Gerais · see September →
Brumadinho 79
Brumadinho
Minas Gerais · see September →
Mariana 79
Mariana
Minas Gerais · see September →
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Torn between Arraial do Cabo and another destination?

See Arraial do Cabo next to the destinations that usually compete for the same trip: month-by-month weather, driving cost, ideal length of stay and travel style, side by side.

Arraial do Cabo or Búzios? Arraial do Cabo or Paraty? Arraial do Cabo or Rio de Janeiro?
see all comparisons →

Questions about Arraial do Cabo in September

What is the weather like in Arraial do Cabo in September?
In September, Arraial do Cabo averages highs of 24 °C (75 °F) and lows of 19 °C (66 °F), with about 50 mm of rain spread over roughly 7 days. September has moderate rainfall, usually in quick showers that do not spoil the whole day. Crowds tend to be moderate this month.
Does it rain a lot in Arraial do Cabo in September?
In September, Arraial do Cabo gets about 50 mm of rain spread over around 7 rainy days, in line with the average rainfall for the year. Rain tends to come in quick showers that do not ruin the day.
Is September high season in Arraial do Cabo?
Crowds in September tend to be moderate. Moderate prices outside public holidays, which push rates and crowds up.
What is happening in Arraial do Cabo in September?
No major fixed festivals in September, but public holidays (Independence Day) bring more people to the destination.
Does it usually rain all day in Arraial do Cabo in September?
INMET's climate normals record the number of rainy days and the total millimeters, not the hours of each day, so they do not say how long the rain lasts. What they show for Arraial do Cabo in September: 7 rainy days in a month of 30 days (about 23% of the days) and 50 mm over the month, which works out to an average of about 7 mm per rainy day. Compared with the rest of the year, September falls within the destination's average rainfall. Rain tends to come in showers, but it is smart to have an indoor backup plan.
What is the temperature in Arraial do Cabo in September, and what should you pack?
According to INMET's climate normals, the average high in Arraial do Cabo in September is 24 °C and the average low is 19 °C, with air humidity of around 81%. Compared with the rest of the year, September is among the coolest months at the destination. For your suitcase, here is what those numbers call for: light clothing for the day; sunscreen and sunglasses; quick-dry clothing.
Is Arraial do Cabo worth visiting in September?
Good time to visit. On our weather comfort index, which weighs rain, heat and humidity from INMET's climate normals, September scores 69 out of 100 and ranks No. 5 among the 12 months. The most comfortable month is July (76) and the least comfortable is December (54). As for crowds, in September they tend to be moderate.
August see the full year October