Cabo Frio in Fall
In fall (March, April and May), Cabo Frio sees average daytime highs around 25°C and overnight lows near 23°C, with 219 mm of rain over about 31 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 26°C in early March to 23°C by late May. The sky is clear or mostly clear about 50% of the time across fall, and the air most often feels oppressive.
Fall is Cabo Frio's weakest season of the year to visit on our travel score. Cabo Frio has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Cabo Frio's year-round climate.
- Avg daytime high
- 25°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 219 mm
- 31 wet days
- Avg wind
- 19 km/h
- Travel score
- 7.1
- weakest season of the year
- Months
- Mar · Apr · May
Temperature in Cabo Frio in Fall
Over the season highs ease from about 26°C in early March to 23°C by late May.
A typical fall day in Cabo Frio reaches about 25°C and drops to 23°C overnight. The warmest of the three months is March, the coolest May.
Cabo Frio weather by month
How the three fall months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 25° / 24° | 88 | 8.3 | 13.2 | 7.1 |
| Feb | 26° / 24° | 52 | 6 | 12.8 | 7.3 |
| Mar | 26° / 24° | 105 | 11 | 12.2 | 6.7 |
| Apr | 25° / 24° | 57 | 9.5 | 11.5 | 7.2 |
| May | 24° / 22° | 58 | 10.1 | 10.9 | 7.3 |
| Jun | 23° / 21° | 34 | 6.4 | 10.6 | 7.8 |
| Jul | 22° / 21° | 35 | 6.6 | 10.7 | 7.7 |
| Aug | 22° / 21° | 28 | 6.1 | 11.2 | 7.7 |
| Sep | 22° / 21° | 47 | 7.1 | 11.9 | 7.4 |
| Oct | 23° / 21° | 54 | 7.7 | 12.5 | 7.2 |
| Nov | 24° / 22° | 101 | 10.6 | 13.1 | 6.7 |
| Dec | 25° / 23° | 96 | 9.7 | 13.4 | 6.9 |
Cloud cover in Fall
The sky is clear or mostly clear about 50% of the time across fall.
Chance of precipitation in Fall
Cabo Frio gets around 219 mm of rain over 31 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 19 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 30 min in early March to 10 h 42 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.8 kWh/m².
Is fall a good time to visit Cabo Frio?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is one of the better times to visit Cabo Frio for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Cabo Frio in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Cabo Frio sees daytime highs around 25°C and nights near 23°C. Worth packing: light clothes, rain gear and sun protection. About 31 days see rain.
Sea temperature near Cabo Frio in Fall
The nearest coast averages about 25°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in March at about 25°C and coldest in September near 21°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 24 | 24 | 25 | 25 | 24 | 23 | 22 | 22 | 21 | 22 | 23 | 24 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Warm |
| Feb | 24 | Warm |
| Mar | 25 | Warm |
| Apr | 25 | Warm |
| May | 24 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 22 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 24 | Refreshing |
UV index in Cabo Frio in Fall
Clear-sky midday UV across fall averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Cabo Frio peaks around January 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 13 | 12 | 9 | 7 | 6 | 5 | 8 | 7 | 11 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | High | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | High |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Where is Cabo Frio?
Cabo Frio sits at 22.9°S, 42.0°W, 13 m above sea level, in Brazil. The nearest listed city is Arraial do Cabo, 9.0 km away.
Topography around Cabo Frio
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cabo Frio.
Within 3 km, the terrain around Cabo Frio has only modest variations in elevation — a maximum elevation change of 100 m around an average of 5 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 375 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,806 m.
The land around Cabo Frio is covered by water (44%) and artificial surfaces (35%) within 3 km, water (61%) within 16 km, and water (51%), trees (26%) and grassland (20%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Cabo Frio (-22.8872°, -42.0262°, elevation 13 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.