Petrópolis weather in April

In April, Petrópolis sees average daytime highs of 27°C and overnight lows near 19°C, with 105 mm of rain across 14.1 wet days and about 11.5 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 27% of the time in April, and the air most often feels muggy.

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 Petrópolis's 6th-clearest and 11th-windiest month. For the whole year in context, see Petrópolis's year-round climate.

Daytime high
27°
5th warmest
Overnight low
19°
7th coldest
Rainfall
105 mm
14.1 wet days
Daylight
11 h 30 min
7:09 AM – 6:37 PM
Cloud cover
59%
6th clearest
Wind
5 km/h
11th windiest
Solar energy
4.27 kWh/m²
Travel score
5.8
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical April day in Petrópolis reaches about 27°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°C. Set against its neighbours, April runs about 2°C cooler than March and about 2°C warmer than May.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12820
22820
32820
42820
52820
62720
72720
82719
92719
102719
112719
122719
132719
142719
152719
162719
172719
182719
192719
202719
212719
222718
232718
242718
252618
262618
272618
282618
292618
302618

How April really feels in Petrópolis

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Petrópolis weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°31522.813.23.7
Feb30° / 21°23118.512.83.9
Mar29° / 21°24422.112.24.2
Apr27° / 19°10514.111.55.8
May25° / 16°701110.96.8
Jun24° / 15°41710.67.6
Jul24° / 15°406.610.87.8
Aug25° / 15°427.211.27.6
Sep26° / 17°8810.711.96.6
Oct26° / 18°13715.112.55.7
Nov27° / 19°2522013.14.8
Dec28° / 21°29623.313.44.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 23% of April, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24258
34357
44357
54456
64456
74654
84753
94753
104852
114852
124951
135050
145050
155050
165149
175149
185248
195248
205347
215347
225347
235446
245446
255545
265644
275644
285644
295743
305743

Chance of precipitation in April

Any precipitation

Petrópolis gets around 105 mm of rain over 14.1 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 48% and peaks near 62% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
162
261
361
459
558
657
756
854
953
1052
1150
1249
1348
1447
1546
1645
1744
1843
1942
2042
2141
2241
2340
2440
2540
2640
2740
2840
2940
3040

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the muggy band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 73% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
101115830
201125829
301125928
401136026
501136125
601146124
701156222
802156221
902166220
1002176318
1102186317
1202186416
1302196415
1403206314
1503216313
1603226312
1703236311
1803246310
190325639
200426628
210427627
220429607
230530596
240532585
250634564
260635554
270737533
281739503
291840492
301842472

Wind in April

Winds average 5 km/h in April.

Across April, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 7:03 AM to 7:14 AM, and sunset from 6:52 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:036:52
211.87:046:51
311.87:046:50
411.77:046:49
511.77:056:48
611.77:056:47
711.77:056:46
811.77:066:45
911.67:066:44
1011.67:066:43
1111.67:076:42
1211.67:076:41
1311.57:076:40
1411.57:086:39
1511.57:086:38
1611.57:096:37
1711.57:096:36
1811.47:096:36
1911.47:106:35
2011.47:106:34
2111.47:106:33
2211.47:116:32
2311.37:116:31
2411.37:126:31
2511.37:126:30
2611.37:126:29
2711.37:136:28
2811.27:136:27
2911.27:146:27
3011.27:146:26

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.27 kWh/m².

For context, solar energy here swings from a low near 3.35 kWh/m² to a high of 5.87 kWh/m² in February across the year — April's 4.27 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.0Bright
274.0Bright
284.0Moderate
294.0Moderate
303.9Moderate
Planning a trip in April

Hazard calendar for Petrópolis

In seasonPeak

None of Petrópolis's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Petrópolis's rainy season runs November–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Petrópolis?

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

5.8
Sightseeing
6th-best month of the year
5.9
Beach & pool
6th-best month of the year

April is a reasonable time to visit Petrópolis for sightseeing.

What to pack for Petrópolis in April

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

In April, Petrópolis sees daytime highs around 27°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 14 days see rain.

rain gearlight clothes

Sea temperature near Petrópolis 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 69 km away) is warmest in March at about 25°C and coldest in August 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
Jan25Warm
Feb25Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec24Warm

UV index in Petrópolis 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 Petrópolis peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 24UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep7High
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Petrópolis in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Petrópolis is worst in July — around 38 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (December, 19 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateModerateJul 1237 µg/m³Dec 2319 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb19Moderate
Mar21Moderate
Apr24Moderate
May31Moderate
Jun36Poor
Jul38Poor
Aug32Moderate
Sep37Poor
Oct24Moderate
Nov20Moderate
Dec19Moderate
Location & terrain

Where is Petrópolis?

Petrópolis sits at 22.5°S, 43.2°W, 819 m above sea level, in Brazil. The nearest listed city is Guapimirim, 21 km away.

Topography around Petrópolis

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Petrópolis.

Within 3 km, the terrain around Petrópolis has large variations in elevation — a maximum elevation change of 611 m around an average of 927 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,242 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.

The land around Petrópolis is covered by trees (70%) and artificial surfaces (23%) within 3 km, trees (81%) within 16 km, and trees (47%) and grassland (32%) within 80 km.

3 km
611 m
16 km
2,242 m
80 km
2,252 m
treesgrasslandartificial surfaceswaterwetlandmangroves
April weather nearby: Guapimirim 21 km · Magé 22 km · Teresópolis 23 km · São Pedro 24 km · Paty do Alferes 26 km · Miguel Pereira 30 km · Duque de Caxias 34 km · Belford Roxo 37 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 Petrópolis (-22.505°, -43.1786°, elevation 819 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).