Caxias weather in August

In August, Caxias sees average daytime highs of 35°C and overnight lows near 23°C, with 3 mm of rain across 0.5 wet days and about 11.8 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 68% of the time in August, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of August to 11 h 54 min by month's end. Set against the rest of the year, August is Caxias's 1st-clearest and 1st-windiest month. For the whole year in context, see Caxias's year-round climate.

Daytime high
35°
4th warmest
Overnight low
23°
6th coldest
Rainfall
3 mm
0.5 wet days
Daylight
11 h 48 min
6:02 AM – 5:53 PM
Cloud cover
33%
1st clearest
Wind
9 km/h
1st windiest
Solar energy
6.05 kWh/m²
Travel score
3.5
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 35°C through the month.

A typical August day in Caxias reaches about 35°C in the afternoon and slips back to 23°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 36°C. Set against its neighbours, August runs about 2°C warmer than July and about 1°C cooler than September.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13423
23423
33423
43423
53423
63423
73423
83423
93423
103423
113423
123423
133423
143523
153523
163523
173523
183523
193523
203523
213523
223523
233523
243523
253523
263523
273523
283523
293523
303523
313524

How August really feels in Caxias

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.

Caxias weather by month

How August compares with the rest of the year at a glance. August is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°23624.312.32.7
Feb31° / 23°27223.412.22.7
Mar31° / 23°34527.9122.6
Apr31° / 23°28225.311.92.8
May32° / 23°12814.911.83.7
Jun32° / 23°224.411.74.4
Jul33° / 23°101.811.74.2
Aug35° / 23°30.511.83.5
Sep36° / 24°51.1122.6
Oct36° / 25°142.412.12.2
Nov35° / 25°477.112.22.5
Dec34° / 24°1041312.32.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 68% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 12%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28713
38713
48713
58812
68812
78812
88812
98812
108812
118713
128713
138614
148614
158614
168614
178614
188614
198614
208713
218713
228713
238812
248911
258911
26919
27919
28919
29928
30928
31928

Chance of precipitation in August

Any precipitation

Caxias gets around 3 mm of rain over 0.5 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 2% and peaks near 2% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
12
22
32
42
52
62
72
82
92
102
112
122
132
142
152
162
172
182
192
201
211
221
231
241
251
261
271
281
291
301
311

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
18394111
28394111
38394111
48394211
58384211
68384311
78374312
87374312
97374412
107374412
117374412
127374412
137374512
147364512
158364512
168364512
178354612
188354612
198344612
208344712
217334712
227334812
237324912
246314913
256305113
266295114
275295214
285285215
295275315
304275415
314265416

Wind in August

Winds average 9 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 48 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 6 minutes over August. Sunrise moves from 6:06 AM to 5:56 AM, and sunset from 5:53 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:065:53
211.86:065:53
311.86:065:53
411.86:055:53
511.86:055:53
611.86:055:53
711.86:055:53
811.86:055:53
911.86:045:53
1011.86:045:53
1111.86:045:53
1211.86:045:53
1311.86:035:53
1411.86:035:53
1511.86:035:53
1611.86:025:53
1711.86:025:53
1811.86:025:53
1911.96:015:52
2011.96:015:52
2111.96:015:52
2211.96:005:52
2311.96:005:52
2411.95:595:52
2511.95:595:52
2611.95:595:51
2711.95:585:51
2811.95:585:51
2911.95:575:51
3011.95:575:51
3111.95:565:51

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.05 kWh/m².

For context, solar energy here swings from a low near 4.57 kWh/m² to a high of 6.53 kWh/m² in October across the year — August's 6.05 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
96.0Bright
106.0Bright
116.0Bright
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.3Intense
316.3Intense
Planning a trip in August

Hazard calendar for Caxias

In seasonPeak

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

Caxias's monsoon runs January–April, 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 Caxias?

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

3.5
Sightseeing
4th-best month of the year
7.3
Beach & pool
2nd-best month of the year

August is a weaker month for outdoor sightseeing in Caxias. The water and warmth also suit a beach or pool day.

What to pack for Caxias in August

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

In August, Caxias sees daytime highs around 35°C and nights near 23°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Caxias in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Caxias peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 15Jul 24UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Caxias 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 Caxias is worst in October — around 33 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (May, 11 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 1532 µg/m³May 1512 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar14Moderate
Apr13Moderate
May11Good
Jun13Moderate
Jul27Moderate
Aug28Moderate
Sep29Moderate
Oct33Moderate
Nov28Moderate
Dec20Moderate
Location & terrain

Where is Caxias?

Caxias sits at 4.9°S, 43.4°W, 83 m above sea level, in Brazil. The nearest listed city is Aldeias Altas, 29 km away.

Topography around Caxias

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

Within 3 km, the terrain around Caxias has only modest variations in elevation — a maximum elevation change of 73 m around an average of 82 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 147 m; within 80 km, significant variations in elevation — a maximum elevation change of 259 m.

The land around Caxias is covered by artificial surfaces (42%) and trees (31%) within 3 km, trees (67%) and shrubs (21%) within 16 km, and trees (70%) within 80 km.

3 km
73 m
16 km
147 m
80 km
259 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
August weather nearby: Aldeias Altas 29 km · São João do Soter 58 km · União 62 km · Timon 63 km · Teresina 67 km · Codó 74 km · Matões 75 km · Coelho Neto 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 Caxias (-4.8589°, -43.3561°, elevation 83 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).