Rio Grande weather in April

In April, Rio Grande sees average daytime highs of 21°C and overnight lows near 19°C, with 113 mm of rain across 10.2 wet days and about 11.2 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 40% of the time in April, and the air most often feels muggy.

Daylight stretches from about 11 h 42 min at the start of April to 10 h 48 min by month's end. Set against the rest of the year, April is Rio Grande's 6th-clearest and 10th-windiest month. For the whole year in context, see Rio Grande's year-round climate.

Daytime high
21°
5th warmest
Overnight low
19°
8th coldest
Rainfall
113 mm
10.2 wet days
Daylight
11 h 12 min
7:52 AM – 7:05 PM
Cloud cover
53%
6th clearest
Wind
22 km/h
10th windiest
Solar energy
3.79 kWh/m²
Travel score
6.6
out of 10

Rio Grande is municipality of Rio Grande do Sul state, Brazil.

Density
67/km²
people per km²
Founded
1737

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 20°C by the end.

A typical April day in Rio Grande reaches about 21°C in the afternoon and slips back to 19°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 23°C. Set against its neighbours, April runs about 2°C cooler than March and about 3°C warmer than May.

15°18°20°23°25°151015202530
Avg high (°C)Avg low (°C)
12321
22321
32321
42321
52221
62220
72220
82220
92220
102220
112220
122220
132220
142220
152220
162219
172119
182119
192119
202119
212119
222119
232119
242119
252118
262018
272018
282018
292018
302018

Rio Grande weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 22°878.613.97.4
Feb24° / 23°849.713.27.0
Mar24° / 22°921012.27.1
Apr21° / 19°11310.211.26.6
May19° / 16°1049.710.46.1
Jun16° / 14°1109.79.95.0
Jul15° / 12°11210.210.14.4
Aug15° / 13°1089.710.84.8
Sep16° / 14°12510.411.85.1
Oct18° / 17°12910.212.86.0
Nov21° / 19°877.713.66.8
Dec23° / 21°867.814.17.3

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16139
26040
36040
46040
55941
65941
75941
85842
95743
105743
115644
125743
135743
145743
155644
165644
175644
185644
195644
205644
215545
225545
235545
245545
255446
265347
275347
285248
295248
305248

Chance of precipitation in April

Any precipitation

Rio Grande gets around 113 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 35% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
131
231
332
432
532
633
733
834
934
1034
1134
1234
1334
1434
1535
1635
1735
1835
1935
2035
2135
2235
2335
2435
2535
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 28% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11115233911
21216233911
31217223811
41217223711
51318223711
61318223611
71319223511
81419223411
91420223311
101520223211
111521223111
121621233011
131621232910
141721242810
151721252710
16182125269
17192126269
18202126258
19202127248
20212127237
21222128237
22232128226
23242128216
24252129215
25262129204
26262229194
27272229193
28282229183
29292329182
30292329172

Wind in April

Winds average 22 km/h in April.

Across April, daily wind ranges from about 21 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
823breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1722breezy
1822breezy
1922breezy
2022breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 42 min at the start of April to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over April. Sunrise moves from 7:42 AM to 8:02 AM, and sunset from 7:24 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:427:24
211.77:437:23
311.67:437:22
411.67:447:20
511.67:457:19
611.57:457:18
711.57:467:16
811.57:477:15
911.47:477:14
1011.47:487:13
1111.47:497:11
1211.37:497:10
1311.37:507:09
1411.37:517:07
1511.27:517:06
1611.27:527:05
1711.27:537:04
1811.27:547:03
1911.17:547:01
2011.17:557:00
2111.17:566:59
2211.07:566:58
2311.07:576:57
2411.07:586:56
2510.97:596:55
2610.97:596:54
2710.98:006:52
2810.88:016:51
2910.88:016:50
3010.88:026:49

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 3.79 kWh/m².

For context, solar energy here swings from a low near 2.38 kWh/m² to a high of 7.08 kWh/m² in December across the year — April's 3.79 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.3Bright
34.3Bright
44.3Bright
54.2Bright
64.2Bright
74.1Bright
84.1Bright
94.0Bright
104.0Bright
114.0Moderate
123.9Moderate
133.9Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.7Moderate
183.7Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.3Moderate
Planning a trip in April

Is April a good time to visit Rio Grande?

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

6.6
Sightseeing
6th-best month of the year
4.3
Beach & pool
5th-best month of the year

April is a reasonable time to visit Rio Grande for sightseeing.

What to pack for Rio Grande in April

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

In April, Rio Grande sees daytime highs around 21°C and nights near 19°C. Worth packing: rain gear and a windbreaker. About 10 days see rain.

rain geara windbreaker

Sea temperature near Rio Grande in April

The nearest coast averages about 22°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 24°C and coldest in July near 14°C.

It's comfortable for a long swim from Nov 18 to May 4 — about 5.5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb24Warm
Mar24Refreshing
Apr22Refreshing
May19Cool
Jun16Cool
Jul14Bracing
Aug14Bracing
Sep15Cool
Oct18Cool
Nov20Cool
Dec22Refreshing

UV index in Rio Grande in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rio Grande peaks around January 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 16UV 12Jun 19UV 3
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar9Very high
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep7High
Oct7Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Rio Grande?

Rio Grande sits at 32.0°S, 52.1°W, 7 m above sea level, in Brazil. The nearest listed city is São José do Norte, 6.0 km away.

Topography around Rio Grande

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

Within 3 km, the terrain around Rio Grande has only modest variations in elevation — a maximum elevation change of 11 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 33 m; within 80 km, significant variations in elevation — a maximum elevation change of 357 m.

The land around Rio Grande is covered by water (61%) and artificial surfaces (29%) within 3 km, water (52%) and grassland (20%) within 16 km, and water (48%) within 80 km.

3 km
11 m
16 km
33 m
80 km
357 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
April weather nearby: São José do Norte 6.0 km · Pelotas 37 km · Capão do Leão 47 km · São Lourenço do Sul 75 km · Canguçu 90 km · Arroio Grande 96 km · Piratini 115 km · Jaguarão 134 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 Rio Grande (-32.035°, -52.0986°, elevation 7 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).