São Borja weather in August

In August, São Borja sees average daytime highs of 23°C and overnight lows near 12°C, with 103 mm of rain across 8.5 wet days and about 11 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 23°C by the end. The sky is clear or mostly clear about 48% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 36 min at the start of August to 11 h 24 min by month's end. Set against the rest of the year, August is São Borja's 1st-clearest and 2nd-windiest month. For the whole year in context, see São Borja's year-round climate.

Daytime high
23°
10th warmest
Overnight low
12°
3rd coldest
Rainfall
103 mm
8.5 wet days
Daylight
11 hours
8:19 AM – 7:17 PM
Cloud cover
45%
1st clearest
Wind
14 km/h
2nd windiest
Solar energy
3.77 kWh/m²
Travel score
7.2
out of 10

São Borja 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

Highs climb over the month, from about 21°C in the first days to 23°C by the end.

A typical August day in São Borja reaches about 23°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 30°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C cooler than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12111
22111
32111
42111
52211
62211
72211
82212
92212
102212
112212
122212
132212
142212
152212
162312
172312
182312
192312
202312
212312
222313
232313
242313
252313
262313
272313
282313
292413
302413
312413

How August really feels in São Borja

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.

São Borja weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°15911.913.63.9
Feb31° / 21°13211.2134.3
Mar30° / 20°12810.212.25.2
Apr27° / 17°16510.111.36.7
May23° / 14°1198.310.67.1
Jun21° / 12°1179.210.26.5
Jul20° / 11°1138.810.46.7
Aug23° / 12°1038.5117.2
Sep24° / 14°15110.111.87.0
Oct27° / 16°21011.512.76.4
Nov29° / 18°155913.45.7
Dec31° / 20°15710.613.84.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
36040
46040
56040
66040
76040
86040
96040
106040
116040
126040
136040
146040
156040
166040
176040
186139
196139
206139
216139
226139
236139
246139
256139
266139
276040
286040
296040
306040
315941

Chance of precipitation in August

Any precipitation

São Borja gets around 103 mm of rain over 8.5 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
125
225
325
425
525
625
725
825
925
1026
1126
1226
1326
1426
1526
1626
1727
1827
1927
2027
2128
2228
2329
2429
2530
2630
2731
2831
2931
3032
3132

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 (%)
16121162
26121162
36121162
46021172
56021172
66021172
76021172
86021172
96021172
106021172
116021172
125922172
135822182
145822182
155723182
165723182
175524192
185524192
195524192
205424202
215324212
225224213
235124223
245124223
255023234
265023234
274922244
284922245
294922255
304821256
314821256

Wind in August

Winds average 14 km/h in August.

Across August, daily wind ranges from about 13 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
113light breeze
213light breeze
313light breeze
413light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light 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 10 h 36 min at the start of August to 11 h 24 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 8:32 AM to 8:03 AM, and sunset from 7:09 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.68:327:09
210.68:317:09
310.78:307:10
410.78:297:10
510.78:297:11
610.78:287:11
710.78:277:12
810.88:267:13
910.88:257:13
1010.88:257:14
1110.88:247:14
1210.98:237:15
1310.98:227:15
1410.98:217:16
1510.98:207:17
1611.08:197:17
1711.08:187:18
1811.08:177:18
1911.08:167:19
2011.18:157:19
2111.18:147:20
2211.18:137:20
2311.18:127:21
2411.28:117:21
2511.28:107:22
2611.28:097:23
2711.38:087:23
2811.38:067:24
2911.38:057:24
3011.38:047:25
3111.48:037:25

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.77 kWh/m².

For context, solar energy here swings from a low near 2.53 kWh/m² to a high of 6.86 kWh/m² in December across the year — August's 3.77 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.4Moderate
43.4Moderate
53.4Moderate
63.4Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.6Moderate
113.6Moderate
123.6Moderate
133.7Moderate
143.7Moderate
153.7Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.9Moderate
203.9Moderate
213.9Moderate
223.9Moderate
234.0Moderate
244.0Moderate
254.0Bright
264.0Bright
274.1Bright
284.1Bright
294.1Bright
304.1Bright
314.2Bright
Planning a trip in August

Is August a good time to visit São Borja?

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

7.2
Sightseeing
1st-best month of the year
5.3
Beach & pool
10th-best month of the year

August is one of the better times to visit São Borja for general sightseeing.

What to pack for São Borja in August

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

In August, São Borja sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in São Borja 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 São Borja peaks around January 21 at about 14 (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 highModerateHighExtremeJan 21UV 14Jun 19UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct5High
Nov11Extreme
Dec12Extreme

Air quality in São Borja 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 Borja is worst in September — around 16 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodSep 1116 µg/m³Mar 226 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb14Moderate
Mar6Good
Apr7Good
May6Good
Jun7Good
Jul10Good
Aug15Moderate
Sep16Moderate
Oct9Good
Nov9Good
Dec6Good
Location & terrain

Where is São Borja?

São Borja sits at 28.7°S, 56.0°W, 98 m above sea level, in Brazil. The nearest listed city is Santo Tomé, 13 km away.

Topography around São Borja

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

Within 3 km, the terrain around São Borja has only modest variations in elevation — a maximum elevation change of 43 m around an average of 79 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 80 m; within 80 km, significant variations in elevation — a maximum elevation change of 276 m.

The land around São Borja is covered by artificial surfaces (26%) and cropland (24%) within 3 km, cropland (47%) within 16 km, and grassland (39%) and cropland (25%) within 80 km.

3 km
43 m
16 km
80 m
80 km
276 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Santo Tomé 13 km · Gobernador Virasora 68 km · Itaqui 74 km · Apóstoles 87 km · São Luiz Gonzaga 106 km · Santiago 125 km · Alegrete 127 km · São Francisco de Assis 130 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 Borja (-28.6606°, -56.0044°, elevation 98 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).