Porto Velho weather in April

In April, Porto Velho sees average daytime highs of 30°C and overnight lows near 24°C, with 228 mm of rain across 26.4 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 2% of the time in April, and the air most often feels miserable.

Daylight stretches from about 11 h 54 min at the start of April to 11 h 42 min by month's end. Set against the rest of the year, April is Porto Velho's 7th-clearest and 12th-windiest month. For the whole year in context, see Porto Velho's year-round climate.

Daytime high
30°
8th warmest
Overnight low
24°
7th coldest
Rainfall
228 mm
26.4 wet days
Daylight
11 h 48 min
6:22 AM – 6:10 PM
Cloud cover
84%
7th clearest
Wind
4 km/h
12th windiest
Solar energy
4.3 kWh/m²
Travel score
2.9
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical April day in Porto Velho reaches about 30°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, April runs on par with March and on par with May.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223023
233023
243023
253023
263023
273023
283023
293023
303023

How April really feels in Porto Velho

Once humidity and wind are folded in, April averages 30 days 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
30
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.

Porto Velho weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°30328.612.52.8
Feb30° / 24°31426.712.32.7
Mar30° / 24°32829.512.12.7
Apr30° / 24°22826.411.82.9
May30° / 23°13321.511.63.6
Jun31° / 23°449.511.54.9
Jul31° / 22°224.711.55.1
Aug33° / 23°427.611.73.9
Sep33° / 24°10316.711.93.1
Oct32° / 24°17823.312.22.7
Nov31° / 24°24626.312.42.7
Dec30° / 24°29828.712.52.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 8% of April, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1694
2694
3694
4793
5793
6793
7793
8892
9892
10892
11991
12991
13991
14991
151090
161090
171090
181189
191189
201189
211288
221288
231288
241387
251387
261387
271486
281486
291486
301486

Chance of precipitation in April

Any precipitation

Porto Velho gets around 228 mm of rain over 26.4 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 88% and peaks near 92% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
192
292
391
491
591
691
790
890
990
1090
1189
1289
1389
1488
1588
1688
1787
1887
1987
2087
2186
2286
2386
2485
2585
2684
2784
2883
2983
3082

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1002080
2002080
3001981
4001981
5001981
6001981
7001981
8011980
9011980
10012079
11012079
12012079
13012178
14012178
15022177
16022078
17022078
18022078
19021979
20021979
21021979
22021979
23021979
24031978
25031978
26031978
27031978
28032077
29032077
30142174

Wind in April

Winds average 4 km/h in April, the calmest month.

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 54 min at the start of April to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over April. Sunrise moves from 6:22 AM to 6:22 AM, and sunset from 6:18 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:226:18
211.96:226:18
311.96:226:17
411.96:226:16
511.96:226:16
611.96:226:15
711.96:226:15
811.96:226:14
911.96:226:14
1011.96:226:13
1111.86:226:13
1211.86:226:12
1311.86:226:12
1411.86:226:11
1511.86:226:11
1611.86:226:10
1711.86:226:10
1811.86:226:09
1911.86:226:09
2011.86:226:08
2111.86:226:08
2211.86:226:07
2311.86:226:07
2411.76:226:06
2511.76:226:06
2611.76:226:06
2711.76:226:05
2811.76:226:05
2911.76:226:04
3011.76:226:04

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.3 kWh/m².

For context, solar energy here swings from a low near 4.21 kWh/m² to a high of 5.52 kWh/m² in September across the year — April's 4.3 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in April

Hazard calendar for Porto Velho

In seasonPeak

In April, Porto Velho sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Porto Velho's rainy season runs October–April, 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 Porto Velho?

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

2.9
Sightseeing
6th-best month of the year
4.0
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Porto Velho.

What to pack for Porto Velho in April

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

In April, Porto Velho sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. About 26 days see rain.

light clothesrain gear

UV index in Porto Velho in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Porto Velho peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 11 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 20UV 15Sep 11UV 4
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug5High
Sep4Moderate
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Porto Velho 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 Porto Velho is worst in August — around 101 µg/m³ PM2.5 (unhealthy), about 9.5× the cleanest month (May, 11 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateUnhealthyModerateAug 24100 µg/m³May 1611 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar15Moderate
Apr12Good
May11Good
Jun12Good
Jul34Moderate
Aug101Unhealthy
Sep100Unhealthy
Oct36Poor
Nov20Moderate
Dec15Moderate
Location & terrain

Where is Porto Velho?

Porto Velho sits at 8.8°S, 63.9°W, 90 m above sea level, in Brazil. The nearest listed city is Candeias do Jamari, 23 km away.

Topography around Porto Velho

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

Within 3 km, the terrain around Porto Velho has only modest variations in elevation — a maximum elevation change of 47 m around an average of 76 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, significant variations in elevation — a maximum elevation change of 342 m.

The land around Porto Velho is covered by artificial surfaces (54%) and trees (23%) within 3 km, trees (54%) and grassland (29%) within 16 km, and trees (75%) and grassland (20%) within 80 km.

3 km
47 m
16 km
130 m
80 km
342 m
treesgrasslandcroplandartificial surfaceswaterwetland
April weather nearby: Candeias do Jamari 23 km · Alto Paraíso 125 km · Ariquemes 159 km · Buritis 161 km · Humaitá 169 km · Lábrea 193 km · Machadinho d'Oeste 224 km · Nova Mamoré 240 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 Porto Velho (-8.7619°, -63.9039°, elevation 90 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).