Rosana weather in August

In August, Rosana sees average daytime highs of 27°C and overnight lows near 17°C, with 43 mm of rain across 4.4 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 62% 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 Rosana's 1st-clearest and 1st-windiest month. For the whole year in context, see Rosana's year-round climate.

Daytime high
27°
9th warmest
Overnight low
17°
3rd coldest
Rainfall
43 mm
4.4 wet days
Daylight
11 h 12 min
8:00 AM – 7:13 PM
Cloud cover
34%
1st clearest
Wind
11 km/h
1st windiest
Solar energy
4.64 kWh/m²
Travel score
7.7
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 28°C by the end.

A typical August day in Rosana reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 32°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C cooler than September.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12616
22616
32616
42617
52617
62617
72617
82617
92717
102717
112717
122717
132717
142717
152717
162717
172717
182717
192717
202718
212818
222818
232818
242818
252818
262818
272818
282818
292818
302818
312918

How August really feels in Rosana

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.

Rosana weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°18819.713.23.4
Feb31° / 23°16017.612.83.5
Mar31° / 23°12715.112.24.2
Apr29° / 21°697.611.55.9
May26° / 18°897.610.97.3
Jun25° / 17°596.110.67.8
Jul25° / 16°434.910.88.0
Aug27° / 17°434.411.27.7
Sep29° / 19°857.911.96.0
Oct30° / 21°13013.212.54.6
Nov31° / 22°13113.313.14.3
Dec31° / 23°16517.213.43.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 62% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of August, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
37129
47129
57129
67129
77129
87129
97129
107129
117030
127030
137030
147030
157129
167228
177228
187228
197327
207327
217426
227426
237426
247525
257624
267624
277723
287723
297723
307624
317624

Chance of precipitation in August

Any precipitation

Rosana gets around 43 mm of rain over 4.4 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 14% and peaks near 18% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
214
314
414
514
614
714
813
913
1013
1113
1213
1313
1413
1513
1613
1713
1814
1914
2014
2114
2215
2315
2415
2515
2616
2716
2816
2917
3017
3118

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 43% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12547252
22547253
32547253
42547253
52546253
62646253
72646253
82645254
92745244
102745244
112744244
122744244
132744244
142744244
152744244
162744253
172744253
182743263
192743273
202643273
212642283
222542293
232542303
242442304
252441314
262441314
272340315
282340325
292239326
302239337
312238337

Wind in August

Winds average 11 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 8:10 AM to 7:47 AM, and sunset from 7:07 PM to 7:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.08:107:07
211.08:097:07
311.08:097:08
411.08:087:08
511.08:087:08
611.08:077:09
711.08:067:09
811.18:067:10
911.18:057:10
1011.18:047:10
1111.18:047:11
1211.18:037:11
1311.28:027:12
1411.28:017:12
1511.28:017:12
1611.28:007:13
1711.27:597:13
1811.37:587:14
1911.37:577:14
2011.37:577:14
2111.37:567:15
2211.37:557:15
2311.47:547:15
2411.47:537:16
2511.47:527:16
2611.47:517:16
2711.47:507:17
2811.57:507:17
2911.57:497:17
3011.57:487:18
3111.57:477:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.64 kWh/m².

For context, solar energy here swings from a low near 3.43 kWh/m² to a high of 6.17 kWh/m² in November across the year — August's 4.64 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.3Bright
54.3Bright
64.3Bright
74.3Bright
84.4Bright
94.4Bright
104.4Bright
114.5Bright
124.5Bright
134.5Bright
144.6Bright
154.6Bright
164.6Bright
174.7Bright
184.7Bright
194.7Bright
204.8Bright
214.8Bright
224.8Bright
234.9Bright
244.9Bright
254.9Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.1Bright
315.1Bright
Planning a trip in August

Hazard calendar for Rosana

In seasonPeak

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

Rosana's rainy season runs September–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Rosana?

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
7.9
Beach & pool
1st-best month of the year

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

What to pack for Rosana in August

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

In August, Rosana sees daytime highs around 27°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Rosana 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 Rosana peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 14 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateExtremeJan 19UV 15Sep 14UV 4
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep3Moderate
Oct11Extreme
Nov12Extreme
Dec13Extreme

Air quality in Rosana 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 Rosana is worst in September — around 35 µg/m³ PM2.5 (moderate), about 6.4× the cleanest month (March, 5 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1632 µg/m³Mar 205 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar5Good
Apr6Good
May7Good
Jun7Good
Jul7Good
Aug11Good
Sep35Moderate
Oct13Moderate
Nov9Good
Dec6Good
Location & terrain

Where is Rosana?

Rosana sits at 22.6°S, 53.1°W, 285 m above sea level, in Brazil. The nearest listed city is Taquarussu, 32 km away.

Topography around Rosana

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

Within 3 km, the terrain around Rosana has only modest variations in elevation — a maximum elevation change of 73 m around an average of 251 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 178 m; within 80 km, significant variations in elevation — a maximum elevation change of 394 m.

The land around Rosana is covered by grassland (52%), trees (21%) and water (21%) within 3 km, grassland (51%) within 16 km, and grassland (42%) and cropland (35%) within 80 km.

3 km
73 m
16 km
178 m
80 km
394 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Taquarussu 32 km · Loanda 39 km · Nova Andradina 48 km · Paranavaí 82 km · Teodoro Sampaio 92 km · Nova Esperança 110 km · Colorado 115 km · Bataguassu 116 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 Rosana (-22.5797°, -53.0592°, elevation 285 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).