São João da Boa Vista weather in April

In April, São João da Boa Vista sees average daytime highs of 27°C and overnight lows near 17°C, with 80 mm of rain across 10.2 wet days and about 11.5 hours of daylight. It is the 8th-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 43% of the time in April, and the air most often feels humid.

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 São João da Boa Vista's 6th-clearest and 11th-windiest month. For the whole year in context, see São João da Boa Vista's year-round climate.

Daytime high
27°
8th warmest
Overnight low
17°
6th coldest
Rainfall
80 mm
10.2 wet days
Daylight
11 h 30 min
7:23 AM – 6:52 PM
Cloud cover
50%
6th clearest
Wind
6 km/h
11th windiest
Solar energy
4.82 kWh/m²
Travel score
6.7
out of 10

São João da Boa Vista is human settlement in Brazil.

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 São João da Boa Vista reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, April runs about 1°C cooler than March and about 3°C warmer than May.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12718
22718
32718
42718
52717
62717
72717
82717
92717
102717
112717
122717
132717
142717
152717
162717
172717
182716
192716
202616
212616
222616
232616
242616
252616
262616
272615
282615
292615
302615

São João da Boa Vista weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°2822413.24.2
Feb28° / 19°21120.112.84.4
Mar28° / 18°1832012.25.0
Apr27° / 17°8010.211.56.7
May24° / 14°576.4117.7
Jun24° / 13°324.210.78.3
Jul24° / 12°273.310.88.5
Aug26° / 13°263.711.28.2
Sep27° / 16°778.711.96.9
Oct28° / 18°12214.712.55.5
Nov27° / 18°19119.413.14.9
Dec28° / 19°24523.413.34.4

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 21% of April, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25743
35842
45941
55941
65941
76040
86040
96040
106139
116139
126139
136238
146238
156337
166436
176436
186436
196535
206535
216733
226733
236733
246931
256931
266931
277030
287030
297129
307129

Chance of precipitation in April

Any precipitation

São João da Boa Vista gets around 80 mm of rain over 10.2 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 34% and peaks near 50% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
150
249
348
447
546
644
743
842
940
1039
1138
1236
1335
1434
1533
1632
1731
1830
1929
2029
2128
2227
2327
2426
2525
2624
2724
2823
2922
3022

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the humid band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 20% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12124738
22134837
32144836
43144934
53155033
63155131
74165030
84165228
94175227
105185126
115195224
126205123
136215122
147225120
157235119
168245018
178254917
189274816
199294715
2010314514
2111324413
2212344212
2313364011
2414373810
251539379
261740358
271841347
282042336
292142315
302243304

Wind in April

Winds average 6 km/h in April.

Across April, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
257calm
267calm
277calm
287calm
297calm
307calm

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 7:18 AM to 7:28 AM, and sunset from 7:06 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:187:06
211.87:187:05
311.87:187:04
411.77:197:03
511.77:197:02
611.77:197:01
711.77:207:00
811.77:206:59
911.67:206:59
1011.67:216:58
1111.67:216:57
1211.67:216:56
1311.67:226:55
1411.57:226:54
1511.57:226:53
1611.57:236:52
1711.57:236:51
1811.57:236:51
1911.47:246:50
2011.47:246:49
2111.47:246:48
2211.47:256:47
2311.47:256:46
2411.37:266:46
2511.37:266:45
2611.37:266:44
2711.37:276:43
2811.37:276:43
2911.27:286:42
3011.27:286:41

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.82 kWh/m².

For context, solar energy here swings from a low near 3.85 kWh/m² to a high of 5.91 kWh/m² in November across the year — April's 4.82 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.6Bright
294.6Bright
304.6Bright
Planning a trip in April

Hazard calendar for São João da Boa Vista

In seasonPeak

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

São João da Boa Vista's monsoon runs November–March, when most of the year's rain falls.

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

Is April a good time to visit São João da Boa Vista?

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

6.7
Sightseeing
6th-best month of the year
6.6
Beach & pool
5th-best month of the year

April is a reasonable time to visit São João da Boa Vista for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São João da Boa Vista in April

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

In April, São João da Boa Vista sees daytime highs around 27°C and nights near 17°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in São João da Boa Vista 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 São João da Boa Vista peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 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 15Jul 10UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in São João da Boa Vista 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 São João da Boa Vista is worst in September — around 24 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (November, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1522 µg/m³Nov 239 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr11Good
May11Good
Jun11Good
Jul11Good
Aug15Moderate
Sep24Moderate
Oct13Moderate
Nov9Good
Dec9Good
Location & terrain

Where is São João da Boa Vista?

São João da Boa Vista sits at 22.0°S, 46.8°W, 774 m above sea level, in Brazil. The nearest listed city is Vargem Grande do Sul, 18 km away.

Topography around São João da Boa Vista

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São João da Boa Vista.

Within 3 km, the terrain around São João da Boa Vista has only modest variations in elevation — a maximum elevation change of 119 m around an average of 766 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,001 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,260 m.

The land around São João da Boa Vista is covered by artificial surfaces (40%), grassland (27%) and trees (24%) within 3 km, trees (37%), grassland (33%) and cropland (26%) within 16 km, and trees (36%), grassland (32%) and cropland (29%) within 80 km.

3 km
119 m
16 km
1,001 m
80 km
1,260 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Vargem Grande do Sul 18 km · Aguaí 21 km · Espírito Santo do Pinhal 26 km · Andradas 26 km · Poços de Caldas 32 km · Casa Branca 37 km · Jacutinga 40 km · São José do Rio Pardo 43 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 São João da Boa Vista (-21.9692°, -46.7981°, elevation 774 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. 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).