Rio das Ostras weather in November

In November, Rio das Ostras sees average daytime highs of 27°C and overnight lows near 21°C, with 203 mm of rain across 17.5 wet days and about 13.1 hours of daylight. It is the 6th-warmest and 3rd-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 13% of the time in November, and the air most often feels oppressive.

Daylight stretches from about 12 h 48 min at the start of November to 13 h 18 min by month's end. Set against the rest of the year, November is Rio das Ostras's 12th-clearest and 4th-windiest month. For the whole year in context, see Rio das Ostras's year-round climate.

Daytime high
27°
6th warmest
Overnight low
21°
8th coldest
Rainfall
203 mm
17.5 wet days
Daylight
13 h 06 min
6:00 AM – 7:06 PM
Cloud cover
74%
12th clearest
Wind
11 km/h
4th windiest
Solar energy
5.52 kWh/m²
Travel score
5.1
out of 10

Rio das Ostras is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in November

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical November day in Rio das Ostras reaches about 27°C in the afternoon and slips back to 21°C overnight — a 6°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, November runs on par with October and about 2°C cooler than December.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12721
22721
32721
42721
52721
62721
72721
82721
92721
102721
112721
122721
132721
142721
152721
162721
172721
182821
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822

How November really feels in Rio das Ostras

Once humidity and wind are folded in, November 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

November sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Rio das Ostras weather by month

How November compares with the rest of the year at a glance. November is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°20616.613.24.1
Feb31° / 24°13612.712.84.2
Mar30° / 23°17217.812.24.3
Apr28° / 21°851211.55.7
May26° / 19°609.510.96.9
Jun26° / 18°315.910.67.6
Jul25° / 18°295.610.87.8
Aug26° / 18°346.311.27.6
Sep26° / 19°7310.111.96.7
Oct27° / 20°1081212.56.1
Nov27° / 21°20317.513.15.1
Dec29° / 23°2221913.44.2

Cloud cover in November

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in November, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of November, with mostly cloudy or overcast conditions the remaining 72%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12773
22773
32575
42575
52575
62476
72575
82575
92575
102575
112575
122773
132773
142773
152773
162872
172971
182971
193070
203070
213070
223169
233169
243070
253070
263070
273070
283169
293070
303070

Chance of precipitation in November

Any precipitation

Rio das Ostras gets around 203 mm of rain over 17.5 wet days in November. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 58% and peaks near 61% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
149
250
351
452
554
655
756
857
958
1059
1159
1260
1361
1461
1561
1661
1761
1861
1961
2061
2160
2260
2360
2459
2559
2659
2759
2859
2959
3059

Humidity in November

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, November lands in the oppressive band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 84% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
131745350
231744360
331743370
431642381
531641391
631640401
731640411
831539421
931538431
1031537441
1131537441
1221536451
1321536461
1421535461
1521535472
1621535472
1721434482
1821434482
1921435482
2021335492
2121335492
2221235492
2321236492
2411136502
2511135512
2611135512
2711034523
2811033533
291933543
300932563

Wind in November

Winds average 11 km/h in November.

Across November, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in November

DaylightNight

Daylight runs from about 12 h 48 min at the start of November to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over November. Sunrise moves from 6:06 AM to 5:59 AM, and sunset from 6:57 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:066:57
212.96:056:57
312.96:056:58
412.96:046:59
512.96:046:59
612.96:037:00
713.06:037:00
813.06:037:01
913.06:027:02
1013.06:027:02
1113.06:017:03
1213.06:017:03
1313.16:017:04
1413.16:017:05
1513.16:007:05
1613.16:007:06
1713.16:007:07
1813.16:007:07
1913.15:597:08
2013.25:597:09
2113.25:597:09
2213.25:597:10
2313.25:597:11
2413.25:597:11
2513.25:597:12
2613.25:597:13
2713.25:597:13
2813.35:597:14
2913.35:597:15
3013.35:597:15

Solar energy in November

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in November, about 5.52 kWh/m².

For context, solar energy here swings from a low near 3.54 kWh/m² to a high of 6.31 kWh/m² in February across the year — November's 5.52 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.5Bright
125.5Bright
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
265.7Bright
275.7Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in November

Hazard calendar for Rio das Ostras

In seasonPeak

In November, Rio das Ostras sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Rio das Ostras's rainy season runs October–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is November a good time to visit Rio das Ostras?

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

5.1
Sightseeing
8th-best month of the year
5.4
Beach & pool
12th-best month of the year

November is a reasonable time to visit Rio das Ostras for sightseeing.

What to pack for Rio das Ostras in November

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

In November, Rio das Ostras sees daytime highs around 27°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Rio das Ostras in November

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

The sea at the nearest coast (about 13 km away) is warmest in March at about 25°C and coldest in September near 21°C.

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

20°22°24°26°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb24Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep21Refreshing
Oct22Refreshing
Nov22Refreshing
Dec24Refreshing

UV index in Rio das Ostras in November

LowModerateHighVery highExtreme

Clear-sky midday UV in November peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rio das Ostras peaks around January 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 highExtremeJan 16UV 14Jul 11UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar13Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme
Location & terrain

Where is Rio das Ostras?

Rio das Ostras sits at 22.5°S, 41.9°W, 11 m above sea level, in Brazil. The nearest listed city is Macaé, 23 km away.

Topography around Rio das Ostras

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

Within 3 km, the terrain around Rio das Ostras has only modest variations in elevation — a maximum elevation change of 49 m around an average of 4 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 693 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,215 m.

The land around Rio das Ostras is covered by water (39%) and artificial surfaces (32%) within 3 km, water (45%) and grassland (27%) within 16 km, and water (37%), trees (31%) and grassland (28%) within 80 km.

3 km
49 m
16 km
693 m
80 km
2,215 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
November weather nearby: Macaé 23 km · Buzios 25 km · Casimiro de Abreu 27 km · São Pedro da Aldeia 38 km · Cabo Frio 41 km · Iguaba Grande 45 km · Silva Jardim 48 km · Arraial do Cabo 50 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 Rio das Ostras (-22.5269°, -41.945°, elevation 11 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).