Santo Antônio da Patrulha weather in August

In August, Santo Antônio da Patrulha sees average daytime highs of 21°C and overnight lows near 11°C, with 123 mm of rain across 10.7 wet days and about 10.9 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 21°C by the end. The sky is clear or mostly clear about 39% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 30 min at the start of August to 11 h 18 min by month's end. Set against the rest of the year, August is Santo Antônio da Patrulha's 1st-clearest and 6th-windiest month. For the whole year in context, see Santo Antônio da Patrulha's year-round climate.

Daytime high
21°
10th warmest
Overnight low
11°
3rd coldest
Rainfall
123 mm
10.7 wet days
Daylight
10 h 54 min
7:59 AM – 6:54 PM
Cloud cover
54%
1st clearest
Wind
9 km/h
6th windiest
Solar energy
3.45 kWh/m²
Travel score
6.4
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 21°C by the end.

A typical August day in Santo Antônio da Patrulha reaches about 21°C in the afternoon and slips back to 11°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 28°C. Set against its neighbours, August runs about 2°C warmer than July and about 1°C cooler than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
11910
21910
32010
42010
52010
62010
72010
82010
92010
102011
112011
122011
132011
142011
152111
162111
172111
182111
192111
202111
212111
222111
232111
242112
252112
262112
272112
282112
292112
302112
312112

Santo Antônio da Patrulha 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
Jan28° / 19°17216.813.75.4
Feb28° / 19°14316.313.15.2
Mar27° / 18°13814.312.26.0
Apr24° / 16°1031111.36.7
May21° / 13°12210.510.56.4
Jun19° / 11°1121010.16.1
Jul19° / 10°14011.110.36.0
Aug21° / 11°12310.710.96.4
Sep21° / 13°15312.111.86.1
Oct23° / 15°18014.412.76.1
Nov25° / 16°12912.613.56.4
Dec27° / 18°1451413.95.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of August, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
45050
54951
64951
74951
84951
94951
104951
114951
124951
134951
145050
155050
165149
175149
185248
195347
205347
215347
225347
235347
245347
255248
265248
275149
285149
295149
305050
314852

Chance of precipitation in August

Any precipitation

Santo Antônio da Patrulha gets around 123 mm of rain over 10.7 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 35% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
335
435
536
636
736
836
936
1036
1136
1236
1336
1436
1535
1635
1734
1834
1934
2033
2133
2233
2333
2433
2533
2633
2733
2833
2933
3034
3134

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1642880
2642880
3642880
4632890
5632890
6622990
7622990
8622990
9613090
10613090
11603190
125931100
135832100
145832100
155633110
165633110
175633110
185533120
195433130
205433130
215333140
225133151
235132161
245032171
255131171
265031181
274930192
284930192
294830192
304830202
314830203

Wind in August

Winds average 9 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 30 min at the start of August to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over August. Sunrise moves from 8:12 AM to 7:42 AM, and sunset from 6:45 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.58:126:45
210.68:116:45
310.68:106:46
410.68:096:46
510.68:096:47
610.78:086:48
710.78:076:48
810.78:066:49
910.78:056:49
1010.88:046:50
1110.88:036:51
1210.88:036:51
1310.88:026:52
1410.98:016:52
1510.98:006:53
1610.97:596:54
1710.97:586:54
1811.07:576:55
1911.07:566:55
2011.07:556:56
2111.17:536:57
2211.17:526:57
2311.17:516:58
2411.17:506:58
2511.27:496:59
2611.27:486:59
2711.27:477:00
2811.37:467:01
2911.37:447:01
3011.37:437:02
3111.37:427:02

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.45 kWh/m².

For context, solar energy here swings from a low near 2.49 kWh/m² to a high of 6.4 kWh/m² in December across the year — August's 3.45 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.2Moderate
83.2Moderate
93.2Moderate
103.3Moderate
113.3Moderate
123.3Moderate
133.3Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.7Moderate
243.7Moderate
253.7Moderate
263.7Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.8Moderate
313.8Moderate
Planning a trip in August

Is August a good time to visit Santo Antônio da Patrulha?

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

6.4
Sightseeing
2nd-best month of the year
3.6
Beach & pool
10th-best month of the year

August is a reasonable time to visit Santo Antônio da Patrulha for sightseeing.

What to pack for Santo Antônio da Patrulha in August

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

In August, Santo Antônio da Patrulha sees daytime highs around 21°C and nights near 11°C. Worth packing: rain gear. About 11 days see rain.

rain gear

Sea temperature near Santo Antônio da Patrulha in August

The nearest coast averages about 16°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 51 km away) is warmest in February at about 25°C and coldest in August near 16°C.

It's comfortable for a long swim from Nov 9 to May 19 — about 6.3 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb25Warm
Mar24Warm
Apr23Refreshing
May20Refreshing
Jun18Cool
Jul16Cool
Aug16Cool
Sep17Cool
Oct19Cool
Nov20Refreshing
Dec23Refreshing

UV index in Santo Antônio da Patrulha in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santo Antônio da Patrulha peaks around January 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 17UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr7Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in Santo Antônio da Patrulha 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 Santo Antônio da Patrulha is worst in August — around 15 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (February, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1815 µg/m³Feb 207 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar7Good
Apr8Good
May8Good
Jun8Good
Jul11Good
Aug15Moderate
Sep12Good
Oct9Good
Nov8Good
Dec8Good
Location & terrain

Where is Santo Antônio da Patrulha?

Santo Antônio da Patrulha sits at 29.8°S, 50.5°W, 118 m above sea level, in Brazil. The nearest listed city is Rolante, 19 km away.

Topography around Santo Antônio da Patrulha

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

Within 3 km, the terrain around Santo Antônio da Patrulha has only modest variations in elevation — a maximum elevation change of 208 m around an average of 76 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 850 m; within 80 km, large variations in elevation — a maximum elevation change of 1,050 m.

The land around Santo Antônio da Patrulha is covered by grassland (51%), trees (27%) and artificial surfaces (20%) within 3 km, grassland (41%) and trees (39%) within 16 km, and trees (38%), water (24%) and grassland (23%) within 80 km.

3 km
208 m
16 km
850 m
80 km
1,050 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Rolante 19 km · Osório 25 km · Taquara 31 km · Parobé 37 km · Igrejinha 38 km · São Francisco de Paula 42 km · Tramandaí 42 km · Imbé 42 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 da Patrulha (-29.8175°, -50.5197°, elevation 118 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).