São João de Pirabas weather in August

In August, São João de Pirabas sees average daytime highs of 29°C and overnight lows near 25°C, with 40 mm of rain across 15.5 wet days and about 12 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 64% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 hours at the start of August to 12 hours by month's end. Set against the rest of the year, August is São João de Pirabas's 2nd-clearest and 4th-windiest month. For the whole year in context, see São João de Pirabas's year-round climate.

Daytime high
29°
5th warmest
Overnight low
25°
9th coldest
Rainfall
40 mm
15.5 wet days
Daylight
12 hours
6:14 AM – 6:12 PM
Cloud cover
39%
2nd clearest
Wind
13 km/h
4th windiest
Solar energy
5.8 kWh/m²
Travel score
4.9
out of 10

São João de Pirabas is human settlement in Brazil.

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical August day in São João de Pirabas reaches about 29°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 30°C. Set against its neighbours, August runs on par with July and on par with September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025
313025

How August really feels in São João de Pirabas

Once humidity and wind are folded in, August averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

São João de Pirabas weather by month

How August compares with the rest of the year at a glance. August is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°29628.6123.2
Feb28° / 24°40427.3123.1
Mar28° / 24°51030.6123.0
Apr28° / 24°45929.5123.0
May29° / 24°31528.5123.2
Jun29° / 24°14725.6123.5
Jul29° / 24°10122.8124.0
Aug29° / 25°4015.5124.9
Sep30° / 25°186.3125.9
Oct30° / 25°144.4125.9
Nov30° / 25°257.4125.4
Dec30° / 25°9918.4124.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 25% of August, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18713
28713
38713
48812
58812
68812
78812
88911
98911
108911
118812
128911
138911
148911
158911
168911
178911
188911
19919
20919
21919
22919
23919
24919
259010
269010
279010
289010
29919
309010
319010

Chance of precipitation in August

Any precipitation

São João de Pirabas gets around 40 mm of rain over 15.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 50% and peaks near 62% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
162
261
360
459
559
658
757
857
957
1056
1156
1255
1355
1455
1554
1653
1752
1851
1950
2049
2147
2246
2344
2442
2540
2638
2736
2835
2933
3032
3130

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 50% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
14159
24159
34258
44258
54357
64357
74357
84357
94456
104456
114555
124555
134654
144654
154753
164753
174852
184951
194951
205050
215149
225347
235446
245545
255743
265842
276040
286139
296337
306436
316535

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 hours at the start of August to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over August. Sunrise moves from 6:16 AM to 6:09 AM, and sunset from 6:14 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:166:14
212.06:166:14
312.06:166:14
412.06:166:14
512.06:156:14
612.06:156:13
712.06:156:13
812.06:156:13
912.06:156:13
1012.06:156:13
1112.06:156:13
1212.06:146:13
1312.06:146:13
1412.06:146:12
1512.06:146:12
1612.06:146:12
1712.06:136:12
1812.06:136:12
1912.06:136:11
2012.06:136:11
2112.06:126:11
2212.06:126:11
2312.06:126:11
2412.06:116:10
2512.06:116:10
2612.06:116:10
2712.06:116:09
2812.06:106:09
2912.06:106:09
3012.06:106:09
3112.06:096:08

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.8 kWh/m².

For context, solar energy here swings from a low near 4.09 kWh/m² to a high of 6.33 kWh/m² in October across the year — August's 5.8 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
266.0Bright
276.0Bright
286.0Bright
296.0Bright
306.0Intense
316.0Intense
Planning a trip in August

Hazard calendar for São João de Pirabas

In seasonPeak

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

São João de Pirabas's monsoon runs January–May, when most of the year's rain falls.

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

Is August a good time to visit São João de Pirabas?

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

4.9
Sightseeing
4th-best month of the year
6.5
Beach & pool
4th-best month of the year

August is a reasonable time to visit São João de Pirabas for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São João de Pirabas in August

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

In August, São João de Pirabas sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near São João de Pirabas in August

The nearest coast averages about 28°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 km away) is warmest in June at about 29°C and coldest in September near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr28Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Warm
Oct28Tropical
Nov28Tropical
Dec28Tropical

UV index in São João de Pirabas in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (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 de Pirabas peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 18 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jul 18UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in São João de Pirabas in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in São João de Pirabas is worst in February — around 22 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (July, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 2022 µg/m³Jul 127 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb22Moderate
Mar21Moderate
Apr16Moderate
May9Good
Jun7Good
Jul7Good
Aug8Good
Sep10Good
Oct11Good
Nov13Moderate
Dec15Moderate
Location & terrain

Where is São João de Pirabas?

São João de Pirabas sits at 0.8°S, 47.2°W, 26 m above sea level, in Brazil. The nearest listed city is Salinópolis, 26 km away.

Topography around São João de Pirabas

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

Within 3 km, the terrain around São João de Pirabas has only modest variations in elevation — a maximum elevation change of 31 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 58 m; within 80 km, only modest variations in elevation — a maximum elevation change of 111 m.

The land around São João de Pirabas is covered by mangroves (37%), water (30%) and trees (23%) within 3 km, trees (39%), water (26%) and mangroves (26%) within 16 km, and trees (37%) and water (37%) within 80 km.

3 km
31 m
16 km
58 m
80 km
111 m
treesgrasslandartificial surfaceswaterwetlandmangroves
August weather nearby: Salinópolis 26 km · Maracanã 31 km · Tracuateua 45 km · Capanema 47 km · Bragança 55 km · Marapanim 58 km · Igarapé-Açu 63 km · Augusto Corrêa 66 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 de Pirabas (-0.7747°, -47.1772°, elevation 26 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. 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).