Quissamã weather in August

In August, Quissamã sees average daytime highs of 27°C and overnight lows near 18°C, with 21 mm of rain across 4.6 wet days and about 11.2 hours of daylight. It is the 10th-warmest and 11th-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 46% of the time in August, and the air most often feels humid.

Daylight stretches from about 11 hours at the start of August to 11 h 30 min by month's end. Set against the rest of the year, August is Quissamã's 3rd-clearest and 4th-windiest month. For the whole year in context, see Quissamã's year-round climate.

Daytime high
27°
10th warmest
Overnight low
18°
2nd coldest
Rainfall
21 mm
4.6 wet days
Daylight
11 h 12 min
7:13 AM – 6:27 PM
Cloud cover
46%
3rd clearest
Wind
11 km/h
4th windiest
Solar energy
4.25 kWh/m²
Travel score
7.4
out of 10

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 Quissamã reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 32°C. Set against its neighbours, August runs on par with July and on par with September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12718
22718
32718
42718
52718
62718
72718
82718
92718
102718
112718
122718
132718
142718
152718
162718
172718
182718
192718
202718
212718
222718
232718
242818
252818
262818
272819
282819
292819
302819
312819

How August really feels in Quissamã

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.

Quissamã 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
Jan32° / 23°17015.213.23.6
Feb32° / 24°8811.312.83.6
Mar31° / 23°14516.612.23.7
Apr30° / 22°7912.211.54.9
May28° / 19°478.6116.6
Jun27° / 18°214.610.77.5
Jul27° / 18°245.110.87.6
Aug27° / 18°214.611.27.4
Sep28° / 19°497.711.96.7
Oct29° / 21°8410.512.55.4
Nov29° / 22°17616.913.14.4
Dec30° / 23°20918.413.33.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36337
46337
56337
66337
76238
86238
96238
106238
116238
126238
136139
146139
156139
166139
176139
186238
196238
206139
216238
226238
236238
246238
256238
266238
276238
286238
296238
306238
316238

Chance of precipitation in August

Any precipitation

Quissamã gets around 21 mm of rain over 4.6 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 15% and peaks near 17% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
214
314
413
513
613
713
814
914
1014
1115
1215
1316
1416
1516
1617
1717
1817
1917
2017
2117
2217
2316
2416
2516
2615
2715
2815
2915
3015
3116

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 43% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
132144330
232144330
332043330
432043330
532043341
632043341
732043331
832043331
932043331
1032043331
1131944331
1231944321
1331944321
1431944321
1531944321
1631945321
1731944321
1831944321
1931944331
2031944341
2131844351
2221843361
2321743371
2421742381
2521642391
2621641401
2721640411
2821639421
2921639431
3021538431
3121538441

Wind in August

Winds average 11 km/h in August.

Across August, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 hours at the start of August to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over August. Sunrise moves from 7:23 AM to 7:00 AM, and sunset from 6:21 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:236:21
211.07:226:22
311.07:226:22
411.07:216:22
511.07:206:23
611.17:206:23
711.17:196:24
811.17:196:24
911.17:186:24
1011.17:176:25
1111.17:176:25
1211.27:166:26
1311.27:156:26
1411.27:156:26
1511.27:146:27
1611.27:136:27
1711.37:126:27
1811.37:116:28
1911.37:116:28
2011.37:106:28
2111.37:096:29
2211.37:086:29
2311.47:076:29
2411.47:066:30
2511.47:056:30
2611.47:056:30
2711.47:046:31
2811.57:036:31
2911.57:026:31
3011.57:016:32
3111.57:006:32

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.25 kWh/m².

For context, solar energy here swings from a low near 3.51 kWh/m² to a high of 6.33 kWh/m² in February across the year — August's 4.25 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
54.0Moderate
64.0Moderate
74.0Bright
84.0Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.1Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.4Bright
234.4Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.6Bright
294.6Bright
304.6Bright
314.7Bright
Planning a trip in August

Hazard calendar for Quissamã

In seasonPeak

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

Quissamã's rainy season runs March–March, 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 Quissamã?

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

7.4
Sightseeing
3rd-best month of the year
7.7
Beach & pool
1st-best month of the year

August is one of the better times to visit Quissamã for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Quissamã in August

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

In August, Quissamã sees daytime highs around 27°C and nights near 18°C. Pack light clothes. About 5 days see rain.

light clothes

Sea temperature near Quissamã in August

The nearest coast averages about 22°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in March at about 25°C and coldest in August near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°22°24°26°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb25Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep22Refreshing
Oct22Refreshing
Nov23Refreshing
Dec24Warm

UV index in Quissamã in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Quissamã peaks around February 8 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 8UV 14Jun 23UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Quissamã?

Quissamã sits at 22.1°S, 41.5°W, 9 m above sea level, in Brazil. The nearest listed city is Conceição de Macabu, 41 km away.

Topography around Quissamã

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

Within 3 km, the terrain around Quissamã has only modest variations in elevation — a maximum elevation change of 15 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 99 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,716 m.

The land around Quissamã is covered by grassland (46%) and wetland (26%) within 3 km, grassland (47%) and water (23%) within 16 km, and grassland (41%) and water (36%) within 80 km.

3 km
15 m
16 km
99 m
80 km
1,716 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Conceição de Macabu 41 km · Campos dos Goytacazes 42 km · Macaé 45 km · São Fidélis 59 km · Rio das Ostras 67 km · São João da Barra 68 km · Cambuci 74 km · Itaocara 79 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 Quissamã (-22.1067°, -41.4722°, elevation 9 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).