Current Conditions

Barra do Piraí, Rio de Janeiro

62°F17°C
Clear

Wind

SSE 3 mph5 km/h

Humidity

86%

Cloud Cover

48%

As of Wednesday, September 2, 2026 at 8:59 PM GMT-3

Today's Outlook

Night

Mostly clear, with a low around 58°F14°C. Breezy from the NE at 4 to 7 mph6 to 11 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 82°F28°CLow 58°F14°CPrecip 0 in0 mmCloud 33%Wind NNE 5 mph9 km/hThursday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 58°F14°C. Breezy from the NNE at 7 to 9 mph11 to 15 km/h. Thursday Night: Mostly clear, with a low around 58°F14°C. Breezy from the NE at 4 to 7 mph6 to 11 km/h.
ClearHigh 88°F31°CLow 61°F16°CPrecip 0 in0 mmCloud 9%Wind NNE 6 mph9 km/hFriday: Mostly clear and hot, with a high of 88°F31°C and morning low of 61°F16°C. Breezy from the N at 6 to 7 mph9 to 11 km/h. Friday Night: Mostly clear, with a low around 63°F17°C. Breezy from the NE at 6 to 8 mph10 to 13 km/h.
ShowersHigh 76°F25°CLow 64°F18°CPrecip 0.13 in3.3 mm68%Cloud 63%Wind SE 3 mph5 km/hSaturday: Mostly cloudy and warm, with a high of 76°F25°C and morning low of 64°F18°C. Light wind from the E around 3 mph6 km/h. 25% chance of drizzle throughout the day. Saturday Night: Mostly cloudy, with a low around 65°F18°C. Light wind from the SSE around 3 mph5 km/h. 68% chance of showers throughout the night.
RainHigh 66°F19°CLow 58°F15°CPrecip 0.56 in14.1 mm100%Cloud 99%Wind S 6 mph9 km/hSunday: Overcast and mild, with a high of 64°F18°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 100% chance of rain throughout the day. Sunday Night: Overcast, with a low around 58°F15°C. Breezy from the S at 5 to 7 mph8 to 11 km/h. 99% chance of light rain throughout the night.
RainHigh 60°F16°CLow 56°F14°CPrecip 0.35 in9 mm100%Cloud 100%Wind SSE 4 mph6 km/hMonday: Overcast and mild, with a high of 60°F16°C. Light wind from the SSE around 4 mph7 km/h. 93% chance of light rain throughout the day. Monday Night: Overcast, with a low around 57°F14°C. Light wind from the SSE around 4 mph6 km/h. 100% chance of rain throughout the night.
Light RainHigh 66°F19°CLow 57°F14°CPrecip 0.27 in6.8 mm87%Cloud 95%Wind NE 3 mph6 km/hTuesday: Overcast and mild, with a high of 66°F19°C and morning low of 57°F14°C. Light wind from the NE around 4 mph6 km/h. 86% chance of light rain throughout the day. Tuesday Night: Overcast, with a low around 57°F14°C. Light wind from the ENE around 3 mph5 km/h. 87% chance of light rain overnight.
Light RainHigh 73°F23°CLow 62°F17°CPrecip 0.15 in3.8 mm51%Cloud 79%Wind NNE 5 mph9 km/hWednesday: Overcast and warm, with a high of 73°F23°C and morning low of 62°F17°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. 41% chance of light rain throughout the day. Wednesday Night: Mostly cloudy, with a low around 62°F17°C. Light wind from the NNE around 5 mph8 km/h. 51% chance of light rain in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 382°F28°C58°F14°C0 in0 mm· —33%ClearNNE 5 mph9 km/h
FridaySep 488°F31°C61°F16°C0 in0 mm· —9%ClearNNE 6 mph9 km/h
SaturdaySep 576°F25°C64°F18°C0.13 in3.3 mm· 68%63%ShowersSE 3 mph5 km/h
SundaySep 666°F19°C58°F15°C0.56 in14.1 mm· 100%99%RainS 6 mph9 km/h
MondaySep 760°F16°C56°F14°C0.35 in9 mm· 100%100%RainSSE 4 mph6 km/h
TuesdaySep 866°F19°C57°F14°C0.27 in6.8 mm· 87%95%Light RainNE 3 mph6 km/h
WednesdaySep 973°F23°C62°F17°C0.15 in3.8 mm· 51%79%Light RainNNE 5 mph9 km/h
ThursdaySep 1077°F25°C66°F19°C0.3 in7.6 mm· 58%88%Light RainN 7 mph11 km/h
FridaySep 1178°F25°C67°F19°C0.27 in6.8 mm· 49%87%Light RainNNE 5 mph8 km/h
SaturdaySep 1276°F24°C65°F18°C0.13 in3.4 mm· 33%81%Light RainE 4 mph7 km/h
SundaySep 1375°F24°C65°F18°C0.19 in4.8 mm· 39%76%Light RainE 5 mph8 km/h
MondaySep 1476°F24°C64°F18°C0.17 in4.4 mm· 37%73%Light RainENE 5 mph8 km/h
TuesdaySep 1578°F26°C64°F18°C0.15 in3.9 mm· 28%63%ShowersNE 5 mph7 km/h
WednesdaySep 1679°F26°C64°F18°C0.09 in2.4 mm· 31%63%ShowersNE 5 mph8 km/h
ThursdaySep 1777°F25°C65°F18°C0.07 in1.9 mm· 36%68%DrizzleNE 5 mph7 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 22.4700°S, 43.8256°W·Elevation: 366m·Timezone: America/Sao_Paulo·Population: 100,764