Rio Preto da Eva weather in August

In August, Rio Preto da Eva sees average daytime highs of 32°C and overnight lows near 23°C, with 84 mm of rain across 16.6 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 30% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of August to 11 h 54 min by month's end. Set against the rest of the year, August is Rio Preto da Eva's 1st-clearest and 4th-windiest month. For the whole year in context, see Rio Preto da Eva's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
23°
4th coldest
Rainfall
84 mm
16.6 wet days
Daylight
11 h 54 min
6:06 AM – 6:00 PM
Cloud cover
57%
1st clearest
Wind
6 km/h
4th windiest
Solar energy
5.2 kWh/m²
Travel score
3.3
out of 10

Rio Preto da Eva is 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 32°C through the month.

A typical August day in Rio Preto da Eva reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, August runs about 1°C warmer than July and on par with September.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13223
23223
33223
43223
53223
63223
73223
83223
93223
103223
113223
123223
133223
143223
153223
163223
173223
183223
193223
203223
213223
223323
233323
243323
253323
263323
273323
283323
293323
303323
313323

How August really feels in Rio Preto da Eva

Once humidity and wind are folded in, August averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Rio Preto da Eva weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°25327.312.12.8
Feb30° / 23°2472512.12.9
Mar30° / 23°33428.9122.7
Apr30° / 23°33028.811.92.7
May30° / 23°27529.111.92.7
Jun30° / 23°14223.511.83.2
Jul31° / 22°9519.311.93.6
Aug32° / 23°8416.611.93.3
Sep33° / 23°9618.3122.8
Oct33° / 24°1322012.12.7
Nov32° / 24°16622.512.12.6
Dec31° / 23°23427.612.22.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 25% of August, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26139
36139
46139
56040
65941
75842
85842
95644
105644
115644
125446
135446
145446
155347
165347
175347
185347
195347
205347
215347
225347
235347
245347
255347
265248
275149
285149
295050
304951
314951

Chance of precipitation in August

Any precipitation

Rio Preto da Eva gets around 84 mm of rain over 16.6 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 55% and peaks near 60% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
151
251
351
451
551
652
752
853
953
1054
1154
1254
1355
1455
1555
1655
1755
1855
1955
2055
2155
2255
2355
2456
2556
2657
2758
2858
2959
3059
3160

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
16904
26904
37885
47885
57885
67885
77885
87885
97876
107876
117876
127867
137867
147867
157858
167858
177849
187849
197849
2078310
2178310
2268311
2368311
2468311
2568311
2658312
2758312
2858312
2958213
3058213
3158213

Wind in August

Winds average 6 km/h in August.

Across August, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 54 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 0 minutes over August. Sunrise moves from 6:08 AM to 6:00 AM, and sunset from 6:01 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:086:01
211.96:086:01
311.96:086:01
411.96:086:01
511.96:086:01
611.96:086:01
711.96:086:01
811.96:076:01
911.96:076:01
1011.96:076:01
1111.96:076:01
1211.96:076:01
1311.96:066:01
1411.96:066:01
1511.96:066:00
1611.96:066:00
1711.96:056:00
1811.96:056:00
1911.96:056:00
2011.96:046:00
2111.96:045:59
2211.96:045:59
2311.96:035:59
2411.96:035:59
2511.96:035:59
2611.96:025:58
2711.96:025:58
2811.96:025:58
2911.96:015:58
3011.96:015:57
3111.96:005:57

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.2 kWh/m².

For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 5.43 kWh/m² in September across the year — August's 5.2 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in August

Is August a good time to visit Rio Preto da Eva?

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

3.3
Sightseeing
2nd-best month of the year
5.4
Beach & pool
1st-best month of the year

August is a weaker month for outdoor sightseeing in Rio Preto da Eva.

What to pack for Rio Preto da Eva in August

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

In August, Rio Preto da Eva sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Rio Preto da Eva in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rio Preto da Eva peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 13 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeMar 12UV 15Nov 13UV 10
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug11Extreme
Sep11Extreme
Oct10Extreme
Nov10Very high
Dec12Extreme

Air quality in Rio Preto da Eva 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 Rio Preto da Eva is worst in October — around 29 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 1129 µg/m³Jun 1412 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar16Moderate
Apr15Moderate
May12Good
Jun12Good
Jul12Moderate
Aug20Moderate
Sep28Moderate
Oct29Moderate
Nov24Moderate
Dec18Moderate
Location & terrain

Where is Rio Preto da Eva?

Rio Preto da Eva sits at 2.7°S, 59.7°W, 39 m above sea level, in Brazil. The nearest listed city is Careiro da Várzea, 57 km away.

Topography around Rio Preto da Eva

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rio Preto da Eva.

Within 3 km, the terrain around Rio Preto da Eva has only modest variations in elevation — a maximum elevation change of 93 m around an average of 58 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 148 m; within 80 km, only modest variations in elevation — a maximum elevation change of 208 m.

The land around Rio Preto da Eva is covered by trees (79%) within 3 km, trees (96%) within 16 km, and trees (88%) within 80 km.

3 km
93 m
16 km
148 m
80 km
208 m
treesgrasslandartificial surfaceswaterwetland
August weather nearby: Careiro da Várzea 57 km · Manaus 57 km · Presidente Figueiredo 82 km · Iranduba 85 km · Autazes 117 km · Manaquiri 117 km · Manacapuru 122 km · Novo Airão 138 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 Rio Preto da Eva (-2.698°, -59.7017°, elevation 39 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).