Santo Antônio do Içá weather in April

In April, Santo Antônio do Içá sees average daytime highs of 30°C and overnight lows near 23°C, with 326 mm of rain across 28.2 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 1st-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 0% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 hours at the start of April to 11 h 54 min by month's end. Set against the rest of the year, April is Santo Antônio do Içá's 12th-clearest and 3rd-windiest month. For the whole year in context, see Santo Antônio do Içá's year-round climate.

Daytime high
30°
9th warmest
Overnight low
23°
6th coldest
Rainfall
326 mm
28.2 wet days
Daylight
11 h 54 min
6:34 AM – 6:30 PM
Cloud cover
90%
12th clearest
Wind
4 km/h
3rd windiest
Solar energy
4.1 kWh/m²
Travel score
2.7
out of 10

Santo Antônio do Içá 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 30°C through the month.

A typical April day in Santo Antônio do Içá reaches about 30°C in the afternoon and slips back to 23°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
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023

How April really feels in Santo Antônio do Içá

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.

Santo Antônio do Içá weather by month

How April compares with the rest of the year at a glance. April is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°27728.312.22.7
Feb30° / 24°27625.512.12.7
Mar30° / 24°32329.1122.6
Apr30° / 23°32628.211.92.7
May30° / 23°30128.811.92.9
Jun29° / 23°20626.111.83.2
Jul30° / 22°15424.811.83.4
Aug31° / 23°13023.311.93.3
Sep31° / 23°14323122.9
Oct31° / 24°18825.612.12.7
Nov31° / 24°21926.212.12.6
Dec31° / 24°26628.812.22.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in April, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 3% of April, with mostly cloudy or overcast conditions the remaining 96%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1595
2595
3595
4595
5595
6595
7595
8595
9595
10496
11496
12496
13496
14397
15397
16397
17397
18397
19397
20397
21397
22397
23397
24397
25397
26397
27397
28397
29397
30397

Chance of precipitation in April

Any precipitation

Santo Antônio do Içá gets around 326 mm of rain over 28.2 wet days in April, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 94% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
194
294
394
494
594
694
794
894
994
1094
1194
1294
1394
1494
1594
1694
1794
1894
1994
2094
2194
2294
2394
2494
2594
2694
2794
2894
2994
3094

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 73% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
102674
202674
302674
402674
502674
602674
702674
802674
902674
1002773
1102773
1202773
1302773
1402773
1502773
1602773
1702773
1802773
1902773
2002773
2102773
2202872
2302872
2402872
2512871
2612871
2712871
2812871
2912871
3012970

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

Days shrink by about 6 minutes over April. Sunrise moves from 6:37 AM to 6:32 AM, and sunset from 6:36 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:376:36
212.06:376:35
312.06:376:35
412.06:366:34
512.06:366:34
612.06:366:34
712.06:366:33
812.06:366:33
912.06:356:32
1011.96:356:32
1111.96:356:32
1211.96:356:31
1311.96:356:31
1411.96:346:31
1511.96:346:30
1611.96:346:30
1711.96:346:30
1811.96:346:29
1911.96:346:29
2011.96:336:29
2111.96:336:28
2211.96:336:28
2311.96:336:28
2411.96:336:27
2511.96:336:27
2611.96:336:27
2711.96:326:27
2811.96:326:26
2911.96:326:26
3011.96:326:26

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.1 kWh/m².

For context, solar energy here swings from a low near 3.72 kWh/m² to a high of 5.19 kWh/m² in October across the year — April's 4.1 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.0Bright
194.0Bright
204.0Bright
214.0Bright
224.0Bright
234.0Moderate
244.0Moderate
254.0Moderate
264.0Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.9Moderate
Planning a trip in April

Is April a good time to visit Santo Antônio do Içá?

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

2.7
Sightseeing
6th-best month of the year
3.7
Beach & pool
11th-best month of the year

April is a weaker month for outdoor sightseeing in Santo Antônio do Içá.

What to pack for Santo Antônio do Içá in April

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

In April, Santo Antônio do Içá sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

UV index in Santo Antônio do Içá in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santo Antônio do Içá peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 9 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 15Sep 9UV 10
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul10Very high
Aug10Very high
Sep10Very high
Oct12Extreme
Nov13Extreme
Dec12Extreme

Air quality in Santo Antônio do Içá 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 Santo Antônio do Içá is worst in August — around 18 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (June, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateAug 2118 µg/m³Jun 1310 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar16Moderate
Apr13Moderate
May10Good
Jun9Good
Jul11Good
Aug18Moderate
Sep16Moderate
Oct13Moderate
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Santo Antônio do Içá?

Santo Antônio do Içá sits at 3.1°S, 67.9°W, 68 m above sea level, in Brazil. The nearest listed city is Tonantins, 30 km away.

LeticiaTabatingaBenjamin ConstantAtalaia do Norte

Topography around Santo Antônio do Içá

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santo Antônio do Içá.

Within 3 km, the terrain around Santo Antônio do Içá has only modest variations in elevation — a maximum elevation change of 61 m around an average of 65 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 73 m; within 80 km, only modest variations in elevation — a maximum elevation change of 92 m.

The land around Santo Antônio do Içá is covered by trees (52%) and water (38%) within 3 km, trees (82%) within 16 km, and trees (96%) within 80 km.

3 km
61 m
16 km
73 m
80 km
92 m
treesgrasslandartificial surfaceswater
April weather nearby: Tonantins 30 km · São Paulo de Olivença 108 km · Fonte Boa 215 km · Carauari 229 km · Leticia 254 km · Tabatinga 255 km · Benjamin Constant 272 km · Atalaia do Norte 287 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 Santo Antônio do Içá (-3.1022°, -67.9397°, elevation 68 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).