Boa Viagem weather in August

In August, Boa Viagem sees average daytime highs of 32°C and overnight lows near 21°C, with 8 mm of rain across 2 wet days and about 11.8 hours of daylight. It is the 6th-warmest and 10th-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 66% of the time in August, and the air most often feels humid.

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 Boa Viagem's 2nd-clearest and 5th-windiest month. For the whole year in context, see Boa Viagem's year-round climate.

Daytime high
32°
6th warmest
Overnight low
21°
3rd coldest
Rainfall
8 mm
2 wet days
Daylight
11 h 48 min
5:48 AM – 5:38 PM
Cloud cover
31%
2nd clearest
Wind
15 km/h
5th windiest
Solar energy
6.1 kWh/m²
Travel score
5.1
out of 10

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 Boa Viagem reaches about 32°C in the afternoon and slips back to 21°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, August runs about 1°C warmer than July and about 1°C cooler than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63121
73221
83221
93221
103221
113221
123221
133221
143221
153221
163221
173221
183221
193221
203221
213221
223221
233221
243221
253221
263222
273222
283222
293322
303322
313322

How August really feels in Boa Viagem

Once humidity and wind are folded in, August averages 18 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
18
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.

Boa Viagem weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°8913.812.33.5
Feb32° / 22°8215.612.23.5
Mar31° / 22°12019.5123.5
Apr30° / 22°1092011.93.7
May30° / 22°6913.211.84.6
Jun30° / 21°318.211.75.3
Jul31° / 21°184.411.75.5
Aug32° / 21°8211.85.1
Sep33° / 22°30.9124.5
Oct34° / 22°90.812.14.0
Nov34° / 23°51.212.23.8
Dec33° / 23°204.612.33.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 66% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18020
28020
38119
48119
58119
68218
78218
88218
98119
108218
118119
128119
138020
148119
158020
168020
178020
188020
198119
208119
218218
228218
238317
248515
258614
268713
278713
288812
298911
308911
318911

Chance of precipitation in August

Any precipitation

Boa Viagem gets around 8 mm of rain over 2 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 6% and peaks near 9% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
19
29
39
49
59
69
79
88
98
108
117
127
137
146
156
165
175
185
195
204
214
224
234
244
254
263
273
283
293
303
313

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 60% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11255420
21255420
32255419
42255419
51255519
61255618
71255618
81265518
91265617
101265617
111265716
121265716
131265815
141265815
151265914
161265914
170266113
180256213
190256213
200246313
210236512
220236512
230226513
240216613
250216613
260206713
270206614
280206614
290206614
300206515
310206515

Wind in August

Winds average 15 km/h in August.

Across August, daily wind ranges from about 15 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
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light 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 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 5:52 AM to 5:42 AM, and sunset from 5:38 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:525:38
211.85:525:38
311.85:515:38
411.85:515:38
511.85:515:38
611.85:515:38
711.85:515:38
811.85:505:38
911.85:505:38
1011.85:505:38
1111.85:505:38
1211.85:495:38
1311.85:495:38
1411.85:495:38
1511.85:485:38
1611.85:485:38
1711.85:485:38
1811.85:475:38
1911.85:475:38
2011.85:475:38
2111.95:465:37
2211.95:465:37
2311.95:465:37
2411.95:455:37
2511.95:455:37
2611.95:445:37
2711.95:445:37
2811.95:435:36
2911.95:435:36
3011.95:435:36
3111.95:425:36

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.1 kWh/m².

For context, solar energy here swings from a low near 4.8 kWh/m² to a high of 6.99 kWh/m² in October across the year — August's 6.1 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.8Bright
55.8Bright
65.8Bright
75.9Bright
85.9Bright
95.9Bright
106.0Bright
116.0Bright
126.0Intense
136.0Intense
146.0Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
316.5Intense
Planning a trip in August

Hazard calendar for Boa Viagem

In seasonPeak

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

Boa Viagem's rainy season runs January–May, 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 Boa Viagem?

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

5.1
Sightseeing
3rd-best month of the year
8.1
Beach & pool
1st-best month of the year

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

What to pack for Boa Viagem in August

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

In August, Boa Viagem sees daytime highs around 32°C and nights near 21°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Boa Viagem 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 Boa Viagem peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 14UV 15Jun 22UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Boa Viagem?

Boa Viagem sits at 5.1°S, 39.7°W, 288 m above sea level, in Brazil. The nearest listed city is Madalena, 35 km away.

Topography around Boa Viagem

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

Within 3 km, the terrain around Boa Viagem has only modest variations in elevation — a maximum elevation change of 64 m around an average of 292 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 437 m; within 80 km, large variations in elevation — a maximum elevation change of 982 m.

The land around Boa Viagem is covered by grassland (50%) and shrubs (37%) within 3 km, shrubs (74%) and grassland (24%) within 16 km, and shrubs (75%) and grassland (21%) within 80 km.

3 km
64 m
16 km
437 m
80 km
982 m
treesshrubsgrasslandcroplandartificial surfaces
August weather nearby: Madalena 35 km · Pedra Branca 36 km · Quixeramobim 49 km · Monsenhor Tabosa 53 km · Senador Pompeu 65 km · Itatira 68 km · Mombaça 69 km · Independência 70 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 Boa Viagem (-5.1275°, -39.7322°, elevation 288 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).