Nilópolis weather in April

In April, Nilópolis sees average daytime highs of 29°C and overnight lows near 20°C, with 85 mm of rain across 12.1 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 29°C through the month. The sky is clear or mostly clear about 34% 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 Nilópolis's 5th-clearest and 11th-windiest month. For the whole year in context, see Nilópolis's year-round climate.

Daytime high
29°
5th warmest
Overnight low
20°
7th coldest
Rainfall
85 mm
12.1 wet days
Daylight
11 h 30 min
7:10 AM – 6:38 PM
Cloud cover
55%
5th clearest
Wind
5 km/h
11th windiest
Solar energy
4.32 kWh/m²
Travel score
5.4
out of 10

Nilópolis is human settlement in Brazil.

Air quality
Elevated
PM10 56 µg/m³ · 2012

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical April day in Nilópolis reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, April runs about 2°C cooler than March and about 2°C warmer than May.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12921
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132921
142921
152920
162920
172920
182920
192920
202920
212920
222920
232820
242820
252820
262820
272819
282819
292819
302819

How April really feels in Nilópolis

Once humidity and wind are folded in, April averages 1 day 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
1
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Nilópolis 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
Jan31° / 23°23520.113.23.3
Feb32° / 23°16716.412.83.4
Mar30° / 22°17119.512.23.8
Apr29° / 20°8512.111.55.4
May26° / 18°589.910.96.7
Jun26° / 17°345.610.67.5
Jul26° / 16°346.110.77.6
Aug26° / 16°326.511.27.3
Sep27° / 18°669.911.96.5
Oct28° / 20°9612.812.55.5
Nov29° / 21°16517.713.14.5
Dec30° / 22°19219.413.43.8

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% 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 44%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24852
34852
44951
55050
65149
75248
85347
95446
105545
115545
125743
135743
145743
155842
165842
175842
185842
195941
205941
215941
225941
236040
246139
256139
266139
276139
286139
296139
306139

Chance of precipitation in April

Any precipitation

Nilópolis gets around 85 mm of rain over 12.1 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 41% and peaks near 55% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
155
254
353
452
551
649
748
846
945
1044
1142
1241
1340
1439
1538
1637
1736
1835
1935
2035
2134
2234
2334
2434
2534
2634
2734
2834
2934
3034

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 45% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10535591
20636571
30636571
40737551
50737551
60838531
70839521
80940501
90940491
1001041471
1101142461
1201243441
1301244431
1401345411
1501446400
1601547380
1701547370
1801648350
1901749330
2011850310
2112050290
2212151270
2312252250
2412353230
2522453210
2622652200
2722753180
2832853160
2932953150
3043053130

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 7:04 AM to 7:15 AM, and sunset from 6:52 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:046:52
211.87:056:51
311.87:056:50
411.77:056:49
511.77:066:48
611.77:066:47
711.77:066:46
811.67:076:46
911.67:076:45
1011.67:076:44
1111.67:086:43
1211.67:086:42
1311.57:096:41
1411.57:096:40
1511.57:096:39
1611.57:106:38
1711.57:106:37
1811.47:106:36
1911.47:116:35
2011.47:116:35
2111.47:126:34
2211.37:126:33
2311.37:126:32
2411.37:136:31
2511.37:136:30
2611.37:146:30
2711.27:146:29
2811.27:156:28
2911.27:156:27
3011.27:156:27

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.32 kWh/m².

For context, solar energy here swings from a low near 3.33 kWh/m² to a high of 5.93 kWh/m² in February across the year — April's 4.32 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.0Bright
294.0Bright
304.0Moderate
Planning a trip in April

Hazard calendar for Nilópolis

In seasonPeak

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

Nilópolis'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 Nilópolis?

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

5.4
Sightseeing
7th-best month of the year
6.6
Beach & pool
6th-best month of the year

April is a reasonable time to visit Nilópolis for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Nilópolis in April

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

In April, Nilópolis sees daytime highs around 29°C and nights near 20°C. Pack light clothes. Worth having: rain gear. About 12 days see rain.

light clothesrain gear

Sea temperature near Nilópolis 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 36 km away) is warmest in March at about 26°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
Mar26Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep21Refreshing
Oct22Refreshing
Nov22Refreshing
Dec24Warm

UV index in Nilópolis 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 Nilópolis peaks around January 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 16UV 14Jul 13UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun6High
Jul5Moderate
Aug8Very high
Sep6High
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Nilópolis 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 Nilópolis 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 Nilópolis?

Nilópolis sits at 22.8°S, 43.4°W, 27 m above sea level, in Brazil. The nearest listed city is São João de Meriti, 4.0 km away.

Topography around Nilópolis

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

Within 3 km, the terrain around Nilópolis has only modest variations in elevation — a maximum elevation change of 175 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,010 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,224 m.

The land around Nilópolis is covered by artificial surfaces (83%) within 3 km, artificial surfaces (49%) and trees (35%) within 16 km, and trees (37%), water (31%) and grassland (24%) within 80 km.

3 km
175 m
16 km
1,010 m
80 km
2,224 m
treesgrasslandartificial surfaceswaterwetlandmangroves
April weather nearby: São João de Meriti 4.0 km · Belford Roxo 5.0 km · Nova Iguaçu 7.0 km · Duque de Caxias 11 km · Queimados 18 km · Barra da Tijuca 22 km · Estácio 25 km · Rio de Janeiro 26 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 Nilópolis (-22.8075°, -43.4139°, elevation 27 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).