Rio das Ostras weather in February

In February, Rio das Ostras sees average daytime highs of 31°C and overnight lows near 24°C, with 136 mm of rain across 12.7 wet days and about 12.8 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 31% of the time in February, and the air most often feels oppressive.

Daylight stretches from about 13 hours at the start of February to 12 h 30 min by month's end. Set against the rest of the year, February is Rio das Ostras's 7th-clearest and 5th-windiest month. For the whole year in context, see Rio das Ostras's year-round climate.

Daytime high
31°
1st warmest
Overnight low
24°
12th coldest
Rainfall
136 mm
12.7 wet days
Daylight
12 h 48 min
6:39 AM – 7:26 PM
Cloud cover
59%
7th clearest
Wind
11 km/h
5th windiest
Solar energy
6.31 kWh/m²
Travel score
4.2
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 February

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical February day in Rio das Ostras reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 34°C. Set against its neighbours, February runs on par with January and about 1°C warmer than March.

20°25°30°35°151015202528
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183123
193123
203123
213123
223123
233123
243123
253123
263023
273023
283023

How February really feels in Rio das Ostras

Once humidity and wind are folded in, February averages 28 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
28
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in February is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Rio das Ostras weather by month

How February compares with the rest of the year at a glance. February is the 1st-warmest and 5th-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 February

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in February.

Beyond those clear spells, partly cloudy skies cover about 14% of February, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202528
Clearer (%)Cloudier (%)
14357
24357
34456
44456
54456
64555
74654
84555
94555
104555
114555
124456
134555
144654
154654
164654
174654
184654
194654
204654
214654
224654
234654
244654
254555
264555
274555
284456

Chance of precipitation in February

Any precipitation

Rio das Ostras gets around 136 mm of rain over 12.7 wet days in February. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 47% and peaks near 53% on the wettest days.

0%20%40%60%151015202528
Rain chance (%)
147
247
347
447
546
646
745
845
945
1044
1144
1244
1344
1444
1544
1644
1744
1845
1945
2046
2147
2248
2349
2450
2551
2652
2753
2853

Humidity in February

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, February lands in the oppressive band about 76% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202528
Muggy (%)Oppressive (%)Miserable (%)
177419
277419
377419
477518
577518
677518
767717
867717
967816
1067816
1167915
1267915
1367915
1467915
1567915
1667915
1767915
1867915
1967915
2067816
2177716
2277716
2377617
2477518
2587418
2687319
2787319
2887220

Wind in February

Winds average 11 km/h in February.

Across February, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202528
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm

Sunrise & sunset in February

DaylightNight

Daylight runs from about 13 hours at the start of February to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over February. Sunrise moves from 6:31 AM to 6:46 AM, and sunset from 7:32 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202528
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:317:32
213.06:317:32
313.06:327:31
413.06:337:31
513.06:337:31
612.96:347:30
712.96:347:30
812.96:357:29
912.96:367:29
1012.96:367:28
1112.86:377:28
1212.86:377:27
1312.86:387:27
1412.86:397:26
1512.86:397:26
1612.86:407:25
1712.76:407:24
1812.76:417:24
1912.76:417:23
2012.76:427:22
2112.76:427:22
2212.66:437:21
2312.66:437:20
2412.66:447:20
2512.66:447:19
2612.66:457:18
2712.56:457:17
2812.56:467:16

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 6.31 kWh/m² — the sunniest month for solar.

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 — February's 6.31 kWh/m² sits near the top of that range.

0246151015202528
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.1Intense
236.1Intense
246.1Intense
256.0Intense
266.0Bright
275.9Bright
285.9Bright
Planning a trip in February

Hazard calendar for Rio das Ostras

In seasonPeak

In February, 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 February a good time to visit Rio das Ostras?

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

4.2
Sightseeing
10th-best month of the year
6.0
Beach & pool
8th-best month of the year

February is a reasonable time to visit Rio das Ostras for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Rio das Ostras in February

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

In February, Rio das Ostras sees daytime highs around 31°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near Rio das Ostras in February

The nearest coast averages about 24°C in February — 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 February

LowModerateHighVery highExtreme

Clear-sky midday UV in February 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
February 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).