Belém weather in August

In August, Belém sees average daytime highs of 27°C and overnight lows near 20°C, with 28 mm of rain across 9.3 wet days and about 11.8 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 22% of the time in August, and the air most often feels muggy.

Daylight stretches from about 11 h 42 min at the start of August to 11 h 54 min by month's end. Set against the rest of the year, August is Belém's 5th-clearest and 1st-windiest month. For the whole year in context, see Belém's year-round climate.

Daytime high
27°
11th warmest
Overnight low
20°
1st coldest
Rainfall
28 mm
9.3 wet days
Daylight
11 h 48 min
5:33 AM – 5:20 PM
Cloud cover
54%
5th clearest
Wind
15 km/h
1st windiest
Solar energy
4.86 kWh/m²
Travel score
6.6
out of 10

Belém 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 27°C through the month.

A typical August day in Belém reaches about 27°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, August runs on par with July and about 1°C cooler than September.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12720
22720
32720
42720
52720
62720
72720
82720
92720
102720
112720
122720
132720
142720
152720
162720
172720
182820
192820
202820
212820
222820
232820
242820
252820
262820
272820
282820
292820
302820
312820

How August really feels in Belém

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.

Belém weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°4713.612.34.4
Feb30° / 23°5714.312.24.1
Mar30° / 23°7217.9124.0
Apr30° / 23°8317.511.94.2
May29° / 22°7415.911.74.9
Jun28° / 21°6414.411.65.7
Jul27° / 20°5812.911.76.2
Aug27° / 20°289.311.86.6
Sep28° / 21°187126.4
Oct30° / 21°155.712.15.9
Nov30° / 22°155.612.35.5
Dec30° / 22°261012.44.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 42% of August, with mostly cloudy or overcast conditions the remaining 36%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
36139
46139
56139
66337
76337
86337
96337
106436
116436
126436
136337
146337
156337
166337
176337
186436
196436
206436
216436
226535
236634
246634
256832
266832
276832
286931
296931
307030
317129

Chance of precipitation in August

Any precipitation

Belém gets around 28 mm of rain over 9.3 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 30% and peaks near 35% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
334
434
533
632
732
831
931
1031
1131
1231
1330
1430
1530
1630
1730
1829
1929
2029
2129
2229
2329
2429
2528
2628
2728
2827
2927
3027
3127

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 84% of days. Sticky, muggy-or-worse air turns up on roughly 87% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
112817
212817
312817
413816
513816
614806
714815
815805
915805
1015814
1115814
1214824
1314833
1414833
1513843
1613843
1713852
1812862
1912862
2012862
2111872
2211872
2311863
2411863
2510873
2610873
2711863
2811863
2911863
3011854
3112844

Wind in August

Winds average 15 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 42 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 12 minutes over August. Sunrise moves from 5:37 AM to 5:26 AM, and sunset from 5:19 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:375:19
211.75:375:19
311.75:375:19
411.75:365:20
511.75:365:20
611.75:365:20
711.75:365:20
811.75:355:20
911.75:355:20
1011.75:355:20
1111.85:355:20
1211.85:345:20
1311.85:345:20
1411.85:345:20
1511.85:335:20
1611.85:335:20
1711.85:325:20
1811.85:325:19
1911.85:325:19
2011.85:315:19
2111.85:315:19
2211.85:305:19
2311.85:305:19
2411.85:305:19
2511.85:295:19
2611.85:295:19
2711.85:285:19
2811.85:285:19
2911.95:275:18
3011.95:275:18
3111.95:265:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.86 kWh/m².

For context, solar energy here swings from a low near 4.13 kWh/m² to a high of 6.09 kWh/m² in November across the year — August's 4.86 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.6Bright
44.6Bright
54.6Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in August

Is August a good time to visit Belém?

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

6.6
Sightseeing
1st-best month of the year
6.9
Beach & pool
5th-best month of the year

August is a reasonable time to visit Belém for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Belém in August

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

In August, Belém sees daytime highs around 27°C and nights near 20°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Belém 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 Belém peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 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 12UV 15Jul 17UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Belém?

Belém sits at 6.7°S, 35.5°W, 140 m above sea level, in Brazil. The nearest listed city is Bananeiras, 13 km away.

Topography around Belém

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

Within 3 km, the terrain around Belém has significant variations in elevation — a maximum elevation change of 262 m around an average of 184 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 554 m; within 80 km, large variations in elevation — a maximum elevation change of 744 m.

The land around Belém is covered by grassland (73%) within 3 km, grassland (65%) within 16 km, and grassland (55%) and shrubs (23%) within 80 km.

3 km
262 m
16 km
554 m
80 km
744 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
August weather nearby: Bananeiras 13 km · Solânea 16 km · Guarabira 19 km · Araçagi 25 km · Nova Cruz 26 km · Araruna 27 km · Cacimba de Dentro 29 km · Areia 35 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 Belém (-6.6917°, -35.5333°, elevation 140 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).