Biguaçu weather in August

In August, Biguaçu sees average daytime highs of 21°C and overnight lows near 12°C, with 90 mm of rain across 9.3 wet days and about 11 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 33% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of August to 11 h 24 min by month's end. Set against the rest of the year, August is Biguaçu's 2nd-clearest and 6th-windiest month. For the whole year in context, see Biguaçu's year-round climate.

Daytime high
21°
10th warmest
Overnight low
12°
3rd coldest
Rainfall
90 mm
9.3 wet days
Daylight
11 hours
7:48 AM – 6:49 PM
Cloud cover
58%
2nd clearest
Wind
7 km/h
6th windiest
Solar energy
3.45 kWh/m²
Travel score
6.6
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical August day in Biguaçu reaches about 21°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 26°C. Set against its neighbours, August runs about 1°C warmer than July and on par with September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12011
22012
32012
42012
52012
62112
72112
82112
92112
102112
112112
122112
132112
142112
152112
162112
172112
182112
192112
202113
212113
222113
232113
242213
252213
262213
272213
282213
292213
302213
312213

Biguaçu weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°23422.613.54.4
Feb28° / 20°21320.3134.4
Mar27° / 19°14919.612.25.0
Apr25° / 17°9512.211.46.4
May22° / 14°11310.810.76.6
Jun21° / 12°969.610.36.4
Jul20° / 11°899.510.46.4
Aug21° / 12°909.3116.6
Sep22° / 14°15013.511.85.8
Oct23° / 16°14315.512.75.6
Nov25° / 17°14716.613.45.5
Dec27° / 19°16718.913.75.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34951
44852
54852
64852
74753
84753
94654
104654
114555
124456
134456
144357
154456
164456
174555
184555
194456
204456
214555
224654
234555
244555
254555
264654
274555
284555
294456
304456
314357

Chance of precipitation in August

Any precipitation

Biguaçu gets around 90 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 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
228
328
429
529
629
729
829
929
1029
1130
1230
1330
1431
1531
1631
1731
1831
1931
2031
2131
2231
2331
2431
2531
2631
2732
2832
2932
3032
3133

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14836160
24836160
34836160
44835170
54835170
64834170
74834180
84834190
94734190
104734200
114634200
124534210
134434220
144434220
154334230
164234240
174134240
184035250
193935260
203835260
213835271
223734281
233734281
243634291
253634291
263634291
273533302
283533302
293533302
303532312
313532312

Wind in August

Winds average 7 km/h in August.

Across August, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 42 min at the start of August to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over August. Sunrise moves from 8:00 AM to 7:33 AM, and sunset from 6:41 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.78:006:41
210.77:596:42
310.77:596:42
410.77:586:43
510.87:576:43
610.87:576:44
710.87:566:44
810.87:556:45
910.97:546:46
1010.97:546:46
1110.97:536:47
1210.97:526:47
1310.97:516:48
1411.07:506:48
1511.07:496:49
1611.07:486:49
1711.07:476:50
1811.17:466:50
1911.17:456:51
2011.17:446:51
2111.17:436:52
2211.27:426:52
2311.27:416:53
2411.27:406:53
2511.27:396:54
2611.37:386:54
2711.37:376:55
2811.37:366:55
2911.37:356:56
3011.47:346:56
3111.47:336:57

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.45 kWh/m².

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 5.61 kWh/m² in December across the year — August's 3.45 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.1Moderate
43.2Moderate
53.2Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.3Moderate
103.3Moderate
113.3Moderate
123.3Moderate
133.3Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.7Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.8Moderate
Planning a trip in August

Is August a good time to visit Biguaçu?

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
4.0
Beach & pool
9th-best month of the year

August is a reasonable time to visit Biguaçu for sightseeing.

What to pack for Biguaçu in August

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

In August, Biguaçu sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear. About 9 days see rain.

rain gear

Sea temperature near Biguaçu in August

The nearest coast averages about 18°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 km away) is warmest in February at about 26°C and coldest in August near 18°C.

It's comfortable for a long swim from Oct 6 to Jun 10 — about 8.2 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar25Warm
Apr24Warm
May22Refreshing
Jun20Cool
Jul18Cool
Aug18Cool
Sep19Cool
Oct21Refreshing
Nov23Refreshing
Dec24Warm

UV index in Biguaçu in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Biguaçu peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 18UV 14Jul 11UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5High
Jun5Moderate
Jul5Moderate
Aug6High
Sep8Very high
Oct9Very high
Nov12Extreme
Dec13Extreme
Location & terrain

Where is Biguaçu?

Biguaçu sits at 27.5°S, 48.7°W, 6 m above sea level, in Brazil. The nearest listed city is Campinas, 12 km away.

Topography around Biguaçu

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

Within 3 km, the terrain around Biguaçu has significant variations in elevation — a maximum elevation change of 394 m around an average of 48 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 595 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,813 m.

The land around Biguaçu is covered by trees (37%), artificial surfaces (21%) and water (21%) within 3 km, trees (47%) and water (26%) within 16 km, and trees (52%) and water (35%) within 80 km.

3 km
394 m
16 km
595 m
80 km
1,813 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
August weather nearby: Campinas 12 km · São José 14 km · Florianopolis 15 km · Trindade 17 km · Palhoça 17 km · Pantanal 19 km · Governador Celso Ramos 22 km · Santo Amaro da Imperatriz 25 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 Biguaçu (-27.4942°, -48.6556°, elevation 6 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).