São João del Rei weather in August

In August, São João del Rei sees average daytime highs of 24°C and overnight lows near 13°C, with 17 mm of rain across 2.8 wet days and about 11.3 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 54% of the time in August, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of August to 11 h 36 min by month's end. Set against the rest of the year, August is São João del Rei's 1st-clearest and 4th-windiest month. For the whole year in context, see São João del Rei's year-round climate.

Daytime high
24°
9th warmest
Overnight low
13°
3rd coldest
Rainfall
17 mm
2.8 wet days
Daylight
11 h 18 min
7:23 AM – 6:39 PM
Cloud cover
40%
1st clearest
Wind
10 km/h
4th windiest
Solar energy
4.75 kWh/m²
Travel score
8.5
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical August day in São João del Rei reaches about 24°C in the afternoon and slips back to 13°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 28°C. Set against its neighbours, August runs about 1°C warmer than July and about 1°C cooler than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12412
22412
32412
42412
52412
62412
72412
82412
92412
102412
112412
122412
132412
142412
152413
162413
172413
182413
192413
202413
212413
222513
232513
242513
252513
262513
272513
282513
292513
302513
312513

São João del Rei weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°22820.613.14.8
Feb27° / 18°13515.812.75.2
Mar27° / 18°14717.512.15.3
Apr26° / 16°498.711.56.9
May23° / 14°315.3117.6
Jun23° / 12°152.510.78.1
Jul23° / 12°10210.88.4
Aug24° / 13°172.811.38.5
Sep26° / 15°607.411.97.2
Oct26° / 16°10012.612.56.1
Nov26° / 17°18618.9135.1
Dec26° / 18°23822.313.34.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% 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 32%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26832
36931
46931
56931
66931
76931
86931
96931
106931
116832
126832
136733
146733
156634
166733
176733
186733
196733
206733
216733
226733
236733
246733
256733
266832
276832
286832
296931
306931
316931

Chance of precipitation in August

Any precipitation

São João del Rei gets around 17 mm of rain over 2.8 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 9% and peaks near 14% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
18
28
38
48
58
68
78
88
98
108
117
127
137
147
157
167
177
188
198
208
219
229
2310
2410
2511
2611
2712
2812
2913
3013
3114

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 75% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
178211
278211
378202
478202
578202
678202
778202
878202
977212
1077212
1177212
1277212
1377212
1477212
1577212
1677212
1777212
1876222
1975232
2075232
2174242
2273252
2372262
2472262
2571272
2670273
2769283
2868293
2967294
3067294
3166304

Wind in August

Winds average 10 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
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 hours at the start of August to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over August. Sunrise moves from 7:32 AM to 7:10 AM, and sunset from 6:34 PM to 6:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:326:34
211.07:326:34
311.17:316:35
411.17:316:35
511.17:306:35
611.17:306:36
711.17:296:36
811.17:286:36
911.17:286:37
1011.27:276:37
1111.27:276:38
1211.27:266:38
1311.27:256:38
1411.27:246:39
1511.37:246:39
1611.37:236:39
1711.37:226:40
1811.37:226:40
1911.37:216:40
2011.37:206:41
2111.47:196:41
2211.47:186:41
2311.47:176:41
2411.47:176:42
2511.47:166:42
2611.57:156:42
2711.57:146:43
2811.57:136:43
2911.57:126:43
3011.57:116:43
3111.67:106:44

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.75 kWh/m².

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 5.74 kWh/m² in February across the year — August's 4.75 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.4Bright
44.4Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.9Bright
234.9Bright
244.9Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in August

Hazard calendar for São João del Rei

In seasonPeak

None of São João del Rei'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 del Rei's monsoon runs November–March, 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 del Rei?

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

8.5
Sightseeing
1st-best month of the year
7.2
Beach & pool
1st-best month of the year

August is one of the better times to visit São João del Rei for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São João del Rei in August

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

In August, São João del Rei sees daytime highs around 24°C and nights near 13°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in São João del Rei in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (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 del Rei peaks around February 9 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 9UV 15Jun 22UV 7
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in São João del Rei 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 del Rei is worst in September — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (January, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1616 µg/m³Jan 118 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar9Good
Apr9Good
May10Good
Jun10Good
Jul9Good
Aug11Good
Sep17Moderate
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is São João del Rei?

São João del Rei sits at 21.1°S, 44.3°W, 911 m above sea level, in Brazil. The nearest listed city is Barroso, 30 km away.

Topography around São João del Rei

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

Within 3 km, the terrain around São João del Rei has significant variations in elevation — a maximum elevation change of 301 m around an average of 956 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 531 m; within 80 km, large variations in elevation — a maximum elevation change of 1,184 m.

The land around São João del Rei is covered by grassland (42%), trees (28%) and artificial surfaces (28%) within 3 km, grassland (53%) and trees (38%) within 16 km, and grassland (56%) and trees (34%) within 80 km.

3 km
301 m
16 km
531 m
80 km
1,184 m
treesgrasslandcroplandartificial surfaces
August weather nearby: Barroso 30 km · Carandaí 51 km · Barbacena 52 km · Bom Sucesso 53 km · Santo Antônio do Amparo 71 km · Conselheiro Lafaiete 72 km · Oliveira 76 km · Carmópolis de Minas 77 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 del Rei (-21.1356°, -44.2617°, elevation 911 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).