Guapimirim weather in April

In April, Guapimirim sees average daytime highs of 27°C and overnight lows near 19°C, with 119 mm of rain across 15.3 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 Guapimirim's 6th-clearest and 11th-windiest month. For the whole year in context, see Guapimirim's year-round climate.

Daytime high
27°
5th warmest
Overnight low
19°
7th coldest
Rainfall
119 mm
15.3 wet days
Daylight
11 h 30 min
7:08 AM – 6:37 PM
Cloud cover
59%
6th clearest
Wind
4 km/h
11th windiest
Solar energy
4.32 kWh/m²
Travel score
5.7
out of 10

Guapimirim is human settlement in Brazil.

Air quality
Good
PM10 16 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 27°C through the month.

A typical April day in Guapimirim 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)
12720
22720
32720
42719
52719
62719
72719
82719
92719
102719
112719
122719
132719
142719
152719
162719
172719
182719
192719
202618
212618
222618
232618
242618
252618
262618
272618
282618
292617
302617

Guapimirim 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°32823.313.23.8
Feb29° / 21°24218.712.84.0
Mar28° / 20°25922.212.24.3
Apr27° / 19°11915.311.55.7
May24° / 16°8011.410.96.8
Jun24° / 15°497.410.67.6
Jul24° / 14°487.210.87.6
Aug24° / 15°497.511.27.5
Sep25° / 16°1021211.96.6
Oct26° / 18°1501612.55.6
Nov26° / 19°27220.713.14.7
Dec28° / 20°32323.613.44.2

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 24% 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
24159
34258
44357
54357
64555
74654
84753
94753
104852
114852
124951
135050
145149
155149
165248
175347
185347
195347
205446
215446
225446
235545
245545
255545
265644
275644
285644
295644
305644

Chance of precipitation in April

Any precipitation

Guapimirim gets around 119 mm of rain over 15.3 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 51% and peaks near 65% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
165
264
364
463
562
661
759
858
957
1056
1154
1253
1352
1451
1550
1649
1748
1847
1946
2046
2145
2244
2344
2444
2543
2643
2742
2842
2942
3041

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 60% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
101146025
201146223
301146322
402156221
502156320
602166418
702166517
802176516
903186415
1003186514
1103196513
1203206512
1303216511
1404226410
150422659
160423658
170424657
180425647
190527626
200528625
210530605
220631594
230633583
240735553
250737533
260739522
270840492
280842472
291944451
3011046431

Wind in April

Winds average 4 km/h in April.

Across April, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 7:02 AM to 7:13 AM, and sunset from 6:51 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:026:51
211.87:036:50
311.87:036:49
411.77:036:48
511.77:046:47
611.77:046:46
711.77:056:45
811.77:056:44
911.67:056:43
1011.67:066:42
1111.67:066:41
1211.67:066:40
1311.57:076:39
1411.57:076:38
1511.57:076:37
1611.57:086:37
1711.57:086:36
1811.47:096:35
1911.47:096:34
2011.47:096:33
2111.47:106:32
2211.47:106:31
2311.37:106:31
2411.37:116:30
2511.37:116:29
2611.37:126:28
2711.37:126:27
2811.27:136:27
2911.27:136:26
3011.27:136:25

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 3.39 kWh/m² to a high of 5.92 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 Guapimirim

In seasonPeak

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

Guapimirim's rainy season runs October–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 Guapimirim?

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

5.7
Sightseeing
6th-best month of the year
5.7
Beach & pool
6th-best month of the year

April is a reasonable time to visit Guapimirim for sightseeing.

What to pack for Guapimirim in April

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

In April, Guapimirim sees daytime highs around 27°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 15 days see rain.

rain gearlight clothes

Sea temperature near Guapimirim 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 66 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 Guapimirim in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Guapimirim peaks around January 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 21UV 14Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep7Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Guapimirim 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 Guapimirim is worst in September — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (March, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1518 µg/m³Mar 1110 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr12Good
May15Moderate
Jun16Moderate
Jul15Moderate
Aug15Moderate
Sep19Moderate
Oct13Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Guapimirim?

Guapimirim sits at 22.5°S, 43.0°W, 33 m above sea level, in Brazil. The nearest listed city is São Pedro, 13 km away.

Topography around Guapimirim

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

Within 3 km, the terrain around Guapimirim has significant variations in elevation — a maximum elevation change of 480 m around an average of 97 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,243 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.

The land around Guapimirim is covered by trees (74%) within 3 km, trees (71%) and grassland (22%) within 16 km, and trees (47%) and grassland (29%) within 80 km.

3 km
480 m
16 km
2,243 m
80 km
2,252 m
treesgrasslandcroplandartificial surfaceswaterwetland
April weather nearby: São Pedro 13 km · Teresópolis 13 km · Magé 14 km · Petrópolis 21 km · Itaboraí 26 km · Cachoeiras de Macacu 35 km · Tanguá 35 km · Niterói 40 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 Guapimirim (-22.5372°, -42.9819°, elevation 33 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).