🇧🇷 Weather in Rio das Ostras
Current Weather in Rio das Ostras
20°C
Feels like 18°C. Light rain shower.
🌬️ 26 km/h E
💧 84% Humidity
🧭 1026 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 2.5
🌡️ Dew Point: 17°C
🌅 Sunrise: 05:41 AM
🌇 Sunset: 05:42 PM
Map Overlays:
Hourly Forecast for Rio das Ostras
14:00
20°
32%
15:00
20°
39%
16:00
20°
42%
17:00
20°
41%
18:00
20°
43%
19:00
20°
39%
20:00
20°
36%
21:00
20°
38%
22:00
20°
38%
23:00
20°
39%
00:00
20°
37%
01:00
20°
34%
02:00
20°
38%
03:00
19°
38%
04:00
19°
38%
05:00
20°
36%
06:00
20°
36%
07:00
20°
36%
08:00
20°
37%
09:00
20°
34%
10:00
20°
25%
11:00
21°
27%
12:00
21°
34%
13:00
20°
34%
14-Day Forecast for Rio das Ostras
Fri, Sep 18
Light rain shower
20° /
19°
Sat, Sep 19
Patchy rain nearby
21° /
19°
Sun, Sep 20
Overcast
24° /
20°
Mon, Sep 21
Overcast
27° /
21°
Tue, Sep 22
Sunny
27° /
22°
Wed, Sep 23
Overcast
23° /
21°
Thu, Sep 24
Patchy rain nearby
24° /
22°
Fri, Sep 25
Sunny
27° /
22°
Sat, Sep 26
Overcast
28° /
23°
Sun, Sep 27
Light rain shower
23° /
20°
Mon, Sep 28
Patchy rain nearby
20° /
20°
Tue, Sep 29
Light rain shower
20° /
20°
Wed, Sep 30
Patchy rain nearby
21° /
20°
Thu, Oct 01
Light rain shower
21° /
20°
Additional Forecasts for Rio das Ostras
Marine Forecast
Tide Forecast
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 76.0
μg/m³
O₃ (Ozone) 64.0
μg/m³
NO₂ (Nitrogen Dioxide) 0.4 μg/m³
SO₂ (Sulphur Dioxide) 0.3
μg/m³
PM2.5 (Fine particles) 15.4 μg/m³
PM10 (Coarse particles) 26.0 μg/m³
Local Sports Events
Historical Weather
Weather Forecasts for Other Cities in Brazil
Learn More about Weather
FAQ — Weather in Rio das Ostras
Common questions about this page — answers customized for the data shown above.
The current weather in Rio das Ostras is light rain shower with a temperature of 20°C (feels like 18°C). Humidity is at 84% and wind speed is 26 km/h. Browse weather for other cities for comparison.
Tomorrow's forecast for Rio das Ostras shows patchy rain nearby with a high of 21°C and a low of 19°C. There is a 71% chance of rain. Tomorrow’s sunrise and sunset times for Rio das Ostras are also available.
Over the next 7 days in Rio das Ostras, temperatures are forecast to range from a low of 19°C to a high of 27°C. The 7-day forecast table above shows day-by-day conditions, precipitation probability and hourly breakdowns. For weather in nearby cities, see Brazil city pages.
Based on the latest forecast, rain is likely in Rio das Ostras on Friday, Saturday, Tuesday, Wednesday, and Thursday (50%+ chance of precipitation). The hourly forecast above gives more precise timing for any showers expected in the next 24 hours.
Tuesday is forecast to be the warmest day in Rio das Ostras this week, with a high of 27°C and sunny conditions expected.
Rio das Ostras sits at approximately 22.5° south latitude, which generally produces a tropical or sub-tropical climate, with relatively warm temperatures year-round and distinct wet and dry seasons rather than a clear summer–winter cycle. Local geography (coast vs. inland, altitude, prevailing winds) shapes the specific weather patterns shown in the forecast above.
Climatically, the best time to visit Rio das Ostras is generally the local dry season — typically the cooler months of the year for that latitude — when humidity and rainfall are at their lowest. Exact timing depends on what you're after — fewer crowds, specific events, lowest rainfall, or warmest weather. Check the forecast above before planning a short trip.
In the Southern Hemisphere, summer falls in December–February and winter in June–August — opposite to the Northern Hemisphere. Spring is September–November and autumn is March–May. Rio das Ostras follows this Northern/Southern Hemisphere pattern based on its latitude. See the sun page for exact daylight hours through the year.