Três Rios weather in April

In April, Três Rios sees average daytime highs of 27°C and overnight lows near 18°C, with 57 mm of rain across 9.6 wet days and about 11.5 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 26°C by the end. The sky is clear or mostly clear about 25% 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 Três Rios's 6th-clearest and 11th-windiest month. For the whole year in context, see Três Rios's year-round climate.

Daytime high
27°
5th warmest
Overnight low
18°
7th coldest
Rainfall
57 mm
9.6 wet days
Daylight
11 h 30 min
7:08 AM – 6:38 PM
Cloud cover
60%
6th clearest
Wind
6 km/h
11th windiest
Solar energy
4.28 kWh/m²
Travel score
6.4
out of 10

Três Rios 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

Highs ease over the month, from about 28°C in the first days to 26°C by the end.

A typical April day in Três Rios reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°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)
12819
22819
32819
42819
52819
62819
72819
82819
92819
102819
112819
122819
132819
142719
152718
162718
172718
182718
192718
202718
212718
222718
232718
242718
252717
262717
272717
282617
292617
302617

Três Rios weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°23319.513.24.1
Feb30° / 20°15415.112.84.3
Mar29° / 20°14817.712.24.5
Apr27° / 18°579.611.56.4
May25° / 16°356.3117.4
Jun24° / 14°173.410.78.2
Jul24° / 14°183.710.88.2
Aug25° / 14°214.211.27.9
Sep26° / 16°598.711.96.8
Oct27° / 18°10713.712.55.8
Nov27° / 19°19818.813.14.8
Dec29° / 20°23621.313.34.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 52%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14060
24060
34258
44258
54456
64456
74555
84555
94654
104654
114654
124753
134753
144852
154852
164852
174852
184951
195050
205149
215149
225248
235248
245248
255446
265446
275545
285644
295644
305743

Chance of precipitation in April

Any precipitation

Três Rios gets around 57 mm of rain over 9.6 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 32% and peaks near 46% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
146
245
344
443
542
641
740
838
937
1036
1135
1234
1333
1432
1531
1630
1729
1828
1928
2027
2127
2226
2326
2426
2525
2625
2725
2825
2924
3024

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 53% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10224677
20324676
30325666
40325666
50425665
60426655
70427645
80527644
90528634
100629623
110630613
120731593
130831592
140832582
150932572
1601033561
1701034551
1801135531
1901236511
2001338491
2101439461
2201540441
2301641421
2411742401
2511843381
2611944360
2712045340
2812146320
2922247290
3022348270

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 6 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
256calm
266calm
276calm
286calm
296calm
306calm

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 6:27 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
1311.67:076:40
1411.57:086:40
1511.57:086:39
1611.57:086:38
1711.57:096:37
1811.47:096:36
1911.47:096:35
2011.47:106:34
2111.47:106:34
2211.47:116:33
2311.37:116:32
2411.37:116:31
2511.37:126:30
2611.37:126:30
2711.37:136:29
2811.37:136:28
2911.27:136:27
3011.27:146:27

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.28 kWh/m².

For context, solar energy here swings from a low near 3.41 kWh/m² to a high of 5.9 kWh/m² in February across the year — April's 4.28 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.1Bright
244.1Bright
254.1Bright
264.1Bright
274.0Bright
284.0Bright
294.0Bright
304.0Moderate
Planning a trip in April

Hazard calendar for Três Rios

In seasonPeak

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

Três Rios's monsoon runs October–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 Três Rios?

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

6.4
Sightseeing
6th-best month of the year
6.6
Beach & pool
5th-best month of the year

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

What to pack for Três Rios in April

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

In April, Três Rios sees daytime highs around 27°C and nights near 18°C. Pack light clothes. Worth having: rain gear. About 10 days see rain.

light clothesrain gear

UV index in Três Rios 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 Três Rios peaks around February 9 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 highExtremeFeb 9UV 15Jul 10UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Três Rios 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 Três Rios is worst in September — around 22 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (January, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1521 µg/m³Jan 1111 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar12Good
Apr13Moderate
May15Moderate
Jun15Moderate
Jul14Moderate
Aug16Moderate
Sep22Moderate
Oct14Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Três Rios?

Três Rios sits at 22.1°S, 43.2°W, 276 m above sea level, in Brazil. The nearest listed city is Paraíba do Sul, 10 km away.

Topography around Três Rios

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

Within 3 km, the terrain around Três Rios has significant variations in elevation — a maximum elevation change of 408 m around an average of 338 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 655 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.

The land around Três Rios is covered by grassland (52%), trees (24%) and artificial surfaces (22%) within 3 km, grassland (59%) and trees (37%) within 16 km, and trees (49%) and grassland (45%) within 80 km.

3 km
408 m
16 km
655 m
80 km
2,252 m
treesgrasslandartificial surfaceswater
April weather nearby: Paraíba do Sul 10 km · São José do Vale do Rio Preto 30 km · Sapucaia 33 km · Paty do Alferes 41 km · Teresópolis 41 km · Juiz de Fora 42 km · São Pedro 42 km · Petrópolis 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 Três Rios (-22.1167°, -43.2092°, elevation 276 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).