Santo Antônio weather in August

In August, Santo Antônio sees average daytime highs of 29°C and overnight lows near 21°C, with 16 mm of rain across 4.8 wet days and about 11.8 hours of daylight. It is the 10th-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 36% of the time in August, and the air most often feels muggy.

Daylight stretches from about 11 h 42 min at the start of August to 11 h 54 min by month's end. Set against the rest of the year, August is Santo Antônio's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Santo Antônio's year-round climate.

Daytime high
29°
10th warmest
Overnight low
21°
1st coldest
Rainfall
16 mm
4.8 wet days
Daylight
11 h 48 min
5:32 AM – 5:20 PM
Cloud cover
48%
3rd clearest
Wind
17 km/h
2nd windiest
Solar energy
5.08 kWh/m²
Travel score
6.2
out of 10

Santo Antônio 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 Santo Antônio reaches about 29°C in the afternoon and slips back to 21°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, August runs on par with July and about 1°C cooler than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12921
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132921
142921
152921
162921
172921
182921
192921
202921
212921
222921
232921
242921
252921
262921
272921
282921
292921
302921
312921

How August really feels in Santo Antônio

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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Santo Antônio weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°4311.712.34.1
Feb31° / 24°5312.212.23.9
Mar31° / 24°7716.9123.7
Apr31° / 23°881611.94.0
May30° / 23°6212.511.74.8
Jun29° / 22°5411.611.65.4
Jul28° / 21°438.811.76.0
Aug29° / 21°164.811.86.2
Sep30° / 22°82.9126.0
Oct31° / 23°7212.15.5
Nov31° / 23°92.912.35.2
Dec32° / 24°186.812.44.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 39% of August, with mostly cloudy or overcast conditions the remaining 25%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27129
37228
47327
57327
67327
77327
87525
97525
107525
117525
127426
137525
147525
157525
167525
177525
187525
197525
207525
217624
227723
237723
247723
257822
267921
277921
287921
297921
307921
317921

Chance of precipitation in August

Any precipitation

Santo Antônio gets around 16 mm of rain over 4.8 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 16% and peaks near 19% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
219
318
418
517
617
717
817
916
1016
1116
1216
1316
1416
1516
1616
1716
1816
1916
2016
2116
2216
2315
2415
2515
2614
2714
2814
2914
3014
3113

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 84% of days. Sticky, muggy-or-worse air turns up on roughly 91% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
188012
288012
397912
498011
598011
6108010
7108010
810819
910819
1010828
1110828
1210837
1310837
1410846
159856
169865
179865
189865
199874
209874
218884
228884
238884
248875
258875
268875
278875
288875
298875
309865
319865

Wind in August

Winds average 17 km/h in August.

Across August, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in August

DaylightNight

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

Days grow by about 12 minutes over August. Sunrise moves from 5:36 AM to 5:26 AM, and sunset from 5:20 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:365:20
211.75:365:20
311.75:365:20
411.75:365:20
511.75:365:20
611.75:355:20
711.75:355:20
811.85:355:20
911.85:345:20
1011.85:345:20
1111.85:345:20
1211.85:345:20
1311.85:335:20
1411.85:335:20
1511.85:335:20
1611.85:325:20
1711.85:325:20
1811.85:325:20
1911.85:315:20
2011.85:315:19
2111.85:305:19
2211.85:305:19
2311.85:295:19
2411.85:295:19
2511.85:295:19
2611.85:285:19
2711.95:285:19
2811.95:275:19
2911.95:275:18
3011.95:265:18
3111.95:265:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.08 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 6.26 kWh/m² in November across the year — August's 5.08 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.4Bright
315.4Bright
Planning a trip in August

Is August a good time to visit Santo Antônio?

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

6.2
Sightseeing
1st-best month of the year
8.0
Beach & pool
3rd-best month of the year

August is a reasonable time to visit Santo Antônio for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santo Antônio in August

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

In August, Santo Antônio sees daytime highs around 29°C and nights near 21°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Santo Antônio in August

The nearest coast averages about 26°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 62 km away) is warmest in March at about 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul27Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in Santo Antônio in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Santo Antônio peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 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 12UV 15Jul 15UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Santo Antônio?

Santo Antônio sits at 6.3°S, 35.5°W, 93 m above sea level, in Brazil. The nearest listed city is Nova Cruz, 19 km away.

Topography around Santo Antônio

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

Within 3 km, the terrain around Santo Antônio has only modest variations in elevation — a maximum elevation change of 44 m around an average of 89 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 149 m; within 80 km, large variations in elevation — a maximum elevation change of 686 m.

The land around Santo Antônio is covered by grassland (88%) within 3 km, grassland (87%) within 16 km, and grassland (45%) and shrubs (26%) within 80 km.

3 km
44 m
16 km
149 m
80 km
686 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
August weather nearby: Nova Cruz 19 km · Goianinha 30 km · Monte Alegre 31 km · São José de Mipibu 37 km · Nísia Floresta 39 km · Canguaretama 39 km · Araruna 40 km · Belém 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 Santo Antônio (-6.3106°, -35.4789°, elevation 93 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).