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

Cabo Frio in September

Short answer

In September, Cabo Frio averages highs of 27 °C (81 °F) and lows of 19 °C (66 °F), with about 62 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 Cabo FrioBúzios Day Trip★ 9 · 6 reviews · from US$ 46 · via CivitatisSee dates and price →
Temperature
27 / 19 °C
high / low
Rain
62 mm
7 days
Daylight
11h59
sunset at 17:42
Crowds
Moderate
1 public holiday

What to expect in Cabo Frio in September

Myllena Vieira, editor at Visite
Editor's tip

September is spring in Cabo Frio. In Brazil the seasons are the reverse of those in the Northern Hemisphere. Temperatures are pleasant, with highs of 27 °C (81 °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$ 325

Moderate prices outside public holidays, which push rates and crowds up. The average nightly rate for lodging in Cabo Frio is around R$ 325 (Brazilian reais), depending on the date.

Tours and tickets

Things to do in Cabo Frio in September

booking on Civitatis
Búzios Day Trip
9· 6 reviews

Búzios Day Trip

On this day trip to Búzios, we'll sail on a traditional-style ship along the paradise beaches of Rio de Janeiro and enjoy a delicious lunch by the sea.

6 h
from US$ 46
Book →
Cabo Frio Catamaran Ride
8· 5 reviews

Cabo Frio Catamaran Ride

Discover the paradisiacal landscapes of the state of Rio de Janeiro on this catamaran trip around Cabo Frio. The beautiful corners of this coastal city await!

3 h
from US$ 33
Book →
Cabo Frio Beach Hiking Tour
8· 3 reviews

Cabo Frio Beach Hiking Tour

Join us on a hiking adventure to the stunning beaches and scenic viewpoints of Cabo Frio. We'll cross sea caves, white sand bays, cliffs, and natural pools.

3 h
from US$ 22
Book →
Rio de Janeiro Shuttle Service
10· 1 review

Rio de Janeiro Shuttle Service

Do you want to visit the famous Copacabana beach? With this transfer service to Rio de Janeiro from Cabo Frio, you'll travel comfortably to the city.

3 h 30 min
from US$ 53
Book →
Cabo Frio Catamaran Ride

Cabo Frio Catamaran Ride

If you like sailing, this Cabo Frio catamaran trip is perfect for you. We'll cruise the coast of the Brazilian state of Rio de Janeiro!

2 h 30 min
from US$ 46
Book →
Transfer to Angra dos Reis
4· 1 review

Transfer to Angra dos Reis

Get ready for a convenient transfer to Angra dos Reis from Cabo Frio – one of Rio de Janeiro's top destinations! You'll be captivated by the stunning beaches.

6 h
from US$ 84
Book →
See all activities in Cabo Frio
Where to stay

Hotels in Cabo Frio

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

Green Hoteis in Cabo Frio 9.7 ★★★★ · 11 reviews Green Hoteis See on Booking → Samba Bossa Nova Cabo Frio in Cabo Frio 8.3 ★★★★ · 12 reviews Samba Bossa Nova Cabo Frio See on Booking → Pousada do Albatroz in Cabo Frio 7.3 ★★★ · 3 reviews Pousada do Albatroz See on Booking → Hotel la Plage in Cabo Frio 6.8 ★★★ · 15 reviews Hotel la Plage See on Booking →
See all hotels in Cabo Frio

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 27 °C (81 °F) Sunscreen and sunglasses · strong sun on the tours 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 →
See all destinations by month

Torn between Cabo Frio and another destination?

See Cabo Frio 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.

Cabo Frio or Arraial do Cabo? Cabo Frio or Búzios? Cabo Frio or Paraty?
see all comparisons →

Questions about Cabo Frio in September

What is the weather like in Cabo Frio in September?
In September, Cabo Frio averages highs of 27 °C (81 °F) and lows of 19 °C (66 °F), with about 62 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 Cabo Frio in September?
In September, Cabo Frio gets about 62 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 Cabo Frio?
Crowds in September tend to be moderate. Moderate prices outside public holidays, which push rates and crowds up.
What is happening in Cabo Frio 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 Cabo Frio 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 Cabo Frio in September: 7 rainy days in a month of 30 days (about 23% of the days) and 62 mm over the month, which works out to an average of about 9 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 Cabo Frio in September, and what should you pack?
According to INMET's climate normals, the average high in Cabo Frio in September is 27 °C and the average low is 19 °C, with air humidity of around 76%. Compared with the rest of the year, the temperature in September is typical for the destination. For your suitcase, here is what those numbers call for: light clothing for the day; sunscreen and sunglasses; comfortable walking shoes.
Is Cabo Frio 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. 4 among the 12 months. The most comfortable month is August (79) and the least comfortable is December (53). As for crowds, in September they tend to be moderate.
August see the full year October