Altamira weather in August

In August, Altamira sees average daytime highs of 33°C and overnight lows near 23°C, with 31 mm of rain across 7.3 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 33°C through the month. The sky is clear or mostly clear about 48% 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 Altamira's 1st-clearest and 2nd-windiest month. For the whole year in context, see Altamira's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
23°
8th coldest
Rainfall
31 mm
7.3 wet days
Daylight
11 h 54 min
6:36 AM – 6:30 PM
Cloud cover
45%
1st clearest
Wind
8 km/h
2nd windiest
Solar energy
5.55 kWh/m²
Travel score
3.9
out of 10

Altamira is human 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 33°C through the month.

A typical August day in Altamira reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 34°C. Set against its neighbours, August runs about 1°C warmer than July and on par with September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13223
23223
33223
43323
53323
63323
73323
83323
93323
103323
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273324
283324
293324
303324
313324

How August really feels in Altamira

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.

Altamira 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°24828.112.22.8
Feb29° / 23°27326.512.12.8
Mar30° / 23°32829.1122.8
Apr30° / 23°28128.211.92.7
May30° / 23°19026.211.93.0
Jun31° / 23°7116.611.83.9
Jul31° / 22°4610.211.84.4
Aug33° / 23°317.311.93.9
Sep33° / 24°347123.7
Oct33° / 24°6011.212.13.4
Nov32° / 24°1001512.13.3
Dec31° / 24°15221.912.23.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 28% of August, with mostly cloudy or overcast conditions the remaining 23%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47525
57426
67426
77426
87426
97426
107426
117426
127426
137525
147525
157624
167723
177723
187822
197921
207921
217921
228020
238020
248020
257921
267921
277921
287921
297822
307822
317723

Chance of precipitation in August

Any precipitation

Altamira gets around 31 mm of rain over 7.3 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 23% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
122
222
322
422
522
623
723
823
924
1024
1124
1224
1324
1424
1524
1624
1724
1823
1923
2023
2123
2223
2323
2423
2523
2623
2723
2823
2923
3024
3124

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 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
121682
221682
321682
421682
521682
621682
721682
821682
921682
1021682
1111683
1211683
1311683
1411683
1511584
1611584
1711584
1811584
1911584
2011485
2111485
2211386
2301288
2401288
2501189
2601090
2701090
280991
290991
300991
310991

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
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 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 6:39 AM to 6:31 AM, and sunset from 6:31 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:396:31
211.96:396:31
311.96:396:31
411.96:396:31
511.96:396:31
611.96:386:31
711.96:386:31
811.96:386:30
911.96:386:30
1011.96:386:30
1111.96:376:30
1211.96:376:30
1311.96:376:30
1411.96:376:30
1511.96:366:30
1611.96:366:30
1711.96:366:30
1811.96:356:29
1911.96:356:29
2011.96:356:29
2111.96:356:29
2211.96:346:29
2311.96:346:29
2411.96:346:28
2511.96:336:28
2611.96:336:28
2711.96:326:28
2811.96:326:28
2911.96:326:27
3011.96:316:27
3111.96:316:27

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.55 kWh/m².

For context, solar energy here swings from a low near 3.84 kWh/m² to a high of 6.18 kWh/m² in October across the year — August's 5.55 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in August

Hazard calendar for Altamira

In seasonPeak

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

Altamira's monsoon runs December–May, 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 Altamira?

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

3.9
Sightseeing
2nd-best month of the year
6.8
Beach & pool
1st-best month of the year

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

What to pack for Altamira in August

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

In August, Altamira sees daytime highs around 33°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Altamira 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 Altamira peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 16UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr15Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec11Extreme

Air quality in Altamira 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 Altamira is worst in November — around 40 µg/m³ PM2.5 (poor), about 4.7× the cleanest month (June, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateNov 1238 µg/m³Jun 229 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar15Moderate
Apr13Moderate
May10Good
Jun9Good
Jul9Good
Aug12Good
Sep18Moderate
Oct34Moderate
Nov40Poor
Dec23Moderate
Location & terrain

Where is Altamira?

Altamira sits at 3.2°S, 52.2°W, 101 m above sea level, in Brazil. The nearest listed city is Brasil Novo, 39 km away.

Topography around Altamira

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

Within 3 km, the terrain around Altamira has only modest variations in elevation — a maximum elevation change of 105 m around an average of 116 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 210 m; within 80 km, significant variations in elevation — a maximum elevation change of 405 m.

The land around Altamira is covered by trees (31%), artificial surfaces (29%) and grassland (21%) within 3 km, grassland (44%) and trees (42%) within 16 km, and trees (65%) and grassland (29%) within 80 km.

3 km
105 m
16 km
210 m
80 km
405 m
treesgrasslandartificial surfacesbare terrainwater
August weather nearby: Brasil Novo 39 km · Vitória do Xingu 42 km · Senador José Porfírio 74 km · Medicilândia 80 km · Anapu 116 km · Porto de Moz 162 km · Uruará 179 km · Pacajá 188 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 Altamira (-3.2033°, -52.2064°, elevation 101 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).