Cabo Frio weather in April

In April, Cabo Frio sees average daytime highs of 25°C and overnight lows near 24°C, with 57 mm of rain across 9.5 wet days and about 11.5 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 56% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of April to 11 h 12 min by month's end. Set against the rest of the year, April is Cabo Frio's 4th-clearest and 12th-windiest month. For the whole year in context, see Cabo Frio's year-round climate.

Daytime high
25°
4th warmest
Overnight low
24°
9th coldest
Rainfall
57 mm
9.5 wet days
Daylight
11 h 30 min
7:04 AM – 6:32 PM
Cloud cover
41%
4th clearest
Wind
19 km/h
12th windiest
Solar energy
4.89 kWh/m²
Travel score
7.2
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical April day in Cabo Frio reaches about 25°C in the afternoon and slips back to 24°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 26°C. Set against its neighbours, April runs on par with March and about 1°C warmer than May.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12624
22524
32524
42524
52524
62524
72524
82524
92524
102524
112524
122524
132524
142524
152524
162524
172524
182524
192524
202524
212524
222523
232523
242523
252523
262523
272523
282523
292523
302423

Cabo Frio weather by month

How April compares with the rest of the year at a glance. April is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 24°888.313.27.1
Feb26° / 24°52612.87.3
Mar26° / 24°1051112.26.7
Apr25° / 24°579.511.57.2
May24° / 22°5810.110.97.3
Jun23° / 21°346.410.67.8
Jul22° / 21°356.610.77.7
Aug22° / 21°286.111.27.7
Sep22° / 21°477.111.97.4
Oct23° / 21°547.712.57.2
Nov24° / 22°10110.613.16.7
Dec25° / 23°969.713.46.9

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16436
26535
36535
46733
56733
66832
76832
86931
96931
106931
117030
127030
137030
147030
157129
167129
177129
187129
197327
207327
217327
227426
237426
247426
257426
267426
277525
287525
297525
307525

Chance of precipitation in April

Any precipitation

Cabo Frio gets around 57 mm of rain over 9.5 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 31% and peaks near 37% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
137
237
337
436
536
635
735
834
934
1033
1132
1231
1331
1430
1530
1629
1729
1829
1928
2028
2128
2229
2329
2429
2529
2629
2730
2830
2930
3030

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the oppressive band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11621639
21622638
31722637
41722637
51823626
61823626
71824616
81925605
92925595
102926585
1121026584
1221027574
1321027574
1421027574
1521127573
1621128563
1721128563
1821129562
1921229552
2021229552
2131330522
2231330522
2331431502
2431532491
2531532481
2631633471
2731733461
2831834441
2931935431
3042035411

Wind in April

Winds average 19 km/h in April, the calmest month.

Across April, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 48 min at the start of April to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over April. Sunrise moves from 6:59 AM to 7:10 AM, and sunset from 6:47 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:596:47
211.86:596:46
311.86:596:45
411.77:006:44
511.77:006:43
611.77:016:42
711.77:016:41
811.67:016:40
911.67:026:39
1011.67:026:38
1111.67:026:37
1211.67:036:36
1311.57:036:35
1411.57:036:34
1511.57:046:33
1611.57:046:32
1711.47:056:32
1811.47:056:31
1911.47:056:30
2011.47:066:29
2111.47:066:28
2211.37:076:27
2311.37:076:26
2411.37:076:26
2511.37:086:25
2611.37:086:24
2711.27:096:23
2811.27:096:22
2911.27:106:22
3011.27:106:21

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.89 kWh/m².

For context, solar energy here swings from a low near 3.58 kWh/m² to a high of 6.65 kWh/m² in February across the year — April's 4.89 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
154.9Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in April

Is April a good time to visit Cabo Frio?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.2
Sightseeing
7th-best month of the year
6.5
Beach & pool
3rd-best month of the year

April 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 April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Cabo Frio sees daytime highs around 25°C and nights near 24°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Cabo Frio in April

The nearest coast averages about 25°C in April — 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.

20°22°24°26°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb24Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec24Refreshing

UV index in Cabo Frio in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 15UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep7High
Oct11Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

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.

3 km
100 m
16 km
375 m
80 km
1,806 m
treesgrasslandartificial surfacesbare terrainwaterwetland
April weather nearby: Arraial do Cabo 9.0 km · São Pedro da Aldeia 9.0 km · Iguaba Grande 21 km · Buzios 22 km · Araruama 33 km · Rio das Ostras 41 km · Saquarema 45 km · Silva Jardim 46 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
Roman Catholic 57%Evangelical 27%none 9%other 4%

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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).