Valença weather in August

In August, Valença sees average daytime highs of 25°C and overnight lows near 14°C, with 30 mm of rain across 6.2 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 46% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 11 hours at the start of August to 11 h 30 min by month's end. Set against the rest of the year, August is Valença's 1st-clearest and 3rd-windiest month. For the whole year in context, see Valença's year-round climate.

Daytime high
25°
9th warmest
Overnight low
14°
3rd coldest
Rainfall
30 mm
6.2 wet days
Daylight
11 h 12 min
7:22 AM – 6:36 PM
Cloud cover
47%
1st clearest
Wind
8 km/h
3rd windiest
Solar energy
4.26 kWh/m²
Travel score
7.7
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical August day in Valença reaches about 25°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 29°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°35°151015202531
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52414
62414
72414
82414
92414
102414
112414
122414
132414
142414
152414
162414
172414
182514
192514
202514
212514
222514
232514
242514
252515
262515
272515
282515
292515
302515
312515

Valença 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
Jan29° / 20°30222.413.23.9
Feb29° / 20°21917.812.84.1
Mar28° / 19°22020.912.24.5
Apr27° / 18°9513.211.56.0
May24° / 15°549.110.97.1
Jun24° / 14°265.410.77.8
Jul24° / 14°265.210.87.9
Aug25° / 14°306.211.27.7
Sep26° / 16°7610.711.96.6
Oct26° / 17°13715.612.55.6
Nov27° / 18°24320.413.14.7
Dec28° / 19°29823.113.34.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% 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 41%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35941
45941
55842
65842
75842
85842
95842
105842
115842
125743
135743
145842
155842
165842
175941
185941
195941
206040
216040
226040
236040
246139
256139
266139
276139
286139
296139
306040
316040

Chance of precipitation in August

Any precipitation

Valença gets around 30 mm of rain over 6.2 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 20% and peaks near 26% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
116
216
316
417
517
617
717
818
918
1019
1119
1219
1320
1420
1520
1620
1721
1821
1921
2021
2122
2222
2322
2422
2523
2623
2723
2824
2924
3025
3126

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14049110
24049110
34048120
44048120
54048120
64047130
74047130
83947130
93947140
103947140
113946140
123946150
133946150
143946150
153946150
163946151
173946151
183946151
193946151
203846151
213747151
223747161
233648160
243548160
253549160
263449170
273349170
283349170
293250180
303250180
313150191

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

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

Days grow by about 30 minutes over August. Sunrise moves from 7:32 AM to 7:09 AM, and sunset from 6:30 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:326:30
211.07:316:30
311.07:316:31
411.07:306:31
511.07:306:32
611.07:296:32
711.17:286:32
811.17:286:33
911.17:276:33
1011.17:266:33
1111.17:266:34
1211.27:256:34
1311.27:246:35
1411.27:246:35
1511.27:236:35
1611.27:226:36
1711.27:216:36
1811.37:206:36
1911.37:206:37
2011.37:196:37
2111.37:186:37
2211.37:176:38
2311.47:166:38
2411.47:156:38
2511.47:156:39
2611.47:146:39
2711.47:136:39
2811.57:126:40
2911.57:116:40
3011.57:106:40
3111.57:096:41

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.26 kWh/m².

For context, solar energy here swings from a low near 3.41 kWh/m² to a high of 5.77 kWh/m² in February across the year — August's 4.26 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
44.0Moderate
54.0Moderate
64.0Bright
74.0Bright
84.0Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.4Bright
234.4Bright
244.4Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in August

Hazard calendar for Valença

In seasonPeak

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

Valença's monsoon runs October–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 Valença?

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

7.7
Sightseeing
3rd-best month of the year
6.8
Beach & pool
1st-best month of the year

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

What to pack for Valença in August

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

In August, Valença sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes. About 6 days see rain.

light clothes

UV index in Valença in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Valença peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 20UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep7High
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Valença 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 Valença is worst in July — around 38 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (December, 19 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateModerateJul 1237 µg/m³Dec 2319 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb19Moderate
Mar21Moderate
Apr24Moderate
May31Moderate
Jun36Poor
Jul38Poor
Aug32Moderate
Sep37Poor
Oct24Moderate
Nov20Moderate
Dec19Moderate
Location & terrain

Where is Valença?

Valença sits at 22.2°S, 43.7°W, 560 m above sea level, in Brazil. The nearest listed city is Vassouras, 18 km away.

Topography around Valença

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

Within 3 km, the terrain around Valença has significant variations in elevation — a maximum elevation change of 523 m around an average of 617 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 770 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,224 m.

The land around Valença is covered by grassland (60%) and trees (25%) within 3 km, grassland (64%) and trees (35%) within 16 km, and trees (48%) and grassland (46%) within 80 km.

3 km
523 m
16 km
770 m
80 km
2,224 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Vassouras 18 km · Barra do Piraí 28 km · Mendes 31 km · Miguel Pereira 33 km · Paty do Alferes 35 km · Paracambi 40 km · Pinheiral 43 km · Paraíba do Sul 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 Valença (-22.2456°, -43.7003°, elevation 560 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).