Current Conditions

São João da Barra, Rio de Janeiro

74°F24°C

Clear

Wind

NNW 7 mph12 km/h

Humidity

68%

Cloud Cover

37%

As of Thursday, August 13, 2026 at 7:46 AM GMT-3

Today's Outlook

Day

Partly cloudy and hot, with a high of 90°F32°C and morning low of 64°F18°C. Breezy from the NW at 6 to 8 mph9 to 13 km/h.

Night

Partly cloudy, with a low around 65°F18°C. Light wind from the ENE around 4 mph7 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 90°F32°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 32%	Wind NNW 5 mph8 km/h	Thursday: Partly cloudy and hot, with a high of 90°F32°C and morning low of 64°F18°C. Breezy from the NW at 6 to 8 mph9 to 13 km/h. Thursday Night: Partly cloudy, with a low around 65°F18°C. Light wind from the ENE around 4 mph7 km/h.
Partly Cloudy	High 85°F29°C	Low 70°F21°C	Precip 0.01 in0.2 mm7%	Cloud 47%	Wind S 6 mph10 km/h	Friday: Partly cloudy and warm, with a high of 85°F29°C and morning low of 70°F21°C. Breezy from the S at 7 to 11 mph12 to 17 km/h. Humid. Friday Night: Mostly cloudy, with a low around 71°F22°C. Breezy from the SSE at 5 to 8 mph9 to 13 km/h.
Light Rain	High 77°F25°C	Low 70°F21°C	Precip 0.25 in6.3 mm83%	Cloud 88%	Wind E 7 mph11 km/h	Saturday: Overcast and warm, with a high of 77°F25°C and morning low of 70°F21°C. Breezy from the E at 7 to 10 mph11 to 16 km/h. 83% chance of light rain throughout the day. Humid. Saturday Night: Overcast, with a low around 70°F21°C. Breezy from the E at 6 to 9 mph10 to 15 km/h. 78% chance of light rain throughout the night.
Light Rain	High 75°F24°C	Low 69°F21°C	Precip 0.09 in2.4 mm63%	Cloud 92%	Wind ENE 9 mph15 km/h	Sunday: Overcast and warm, with a high of 75°F24°C and morning low of 69°F21°C. Breezy from the ENE at 10 to 12 mph16 to 20 km/h. 63% chance of drizzle throughout the day. Humid. Sunday Night: Overcast, with a low around 69°F21°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h. 58% chance of light rain overnight.
Drizzle	High 78°F26°C	Low 70°F21°C	Precip 0.02 in0.4 mm21%	Cloud 59%	Wind NE 11 mph18 km/h	Monday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 70°F21°C. Breezy from the NE at 12 to 14 mph19 to 22 km/h. 21% chance of drizzle around midday. Humid. Monday Night: Partly cloudy, with a low around 70°F21°C. Breezy from the NE at 10 to 12 mph17 to 20 km/h.
Clear	High 84°F29°C	Low 67°F19°C	Precip 0 in0 mm—	Cloud 6%	Wind NE 10 mph15 km/h	Tuesday: Mostly clear and warm, with a high of 84°F29°C and morning low of 67°F19°C. Breezy from the NNE at 9 to 11 mph14 to 18 km/h. Tuesday Night: Mostly clear, with a low around 68°F20°C. Breezy from the NE at 10 to 12 mph16 to 19 km/h.
Clear	High 86°F30°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 6%	Wind NE 7 mph12 km/h	Wednesday: Mostly clear and hot, with a high of 86°F30°C and morning low of 64°F18°C. Breezy from the NNE at 7 to 9 mph11 to 15 km/h. Wednesday Night: Mostly clear, with a low around 66°F19°C. Breezy from the NE at 8 to 10 mph12 to 15 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdayAug 13	90°F32°C	64°F18°C	0 in0 mm· —	32%	Clear	NNW 5 mph8 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 64°F18°C. Breezy from the NW at 6 to 8 mph9 to 13 km/h. NightPartly cloudy, with a low around 65°F18°C. Light wind from the ENE around 4 mph7 km/h.
	FridayAug 14	85°F29°C	70°F21°C	0.01 in0.2 mm· 7%	47%	Partly Cloudy	S 6 mph10 km/h
DayPartly cloudy and warm, with a high of 85°F29°C and morning low of 70°F21°C. Breezy from the S at 7 to 11 mph12 to 17 km/h. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SSE at 5 to 8 mph9 to 13 km/h.
	SaturdayAug 15	77°F25°C	70°F21°C	0.25 in6.3 mm· 83%	88%	Light Rain	E 7 mph11 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 70°F21°C. Breezy from the E at 7 to 10 mph11 to 16 km/h. 83% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the E at 6 to 9 mph10 to 15 km/h. 78% chance of light rain throughout the night.
	SundayAug 16	75°F24°C	69°F21°C	0.09 in2.4 mm· 63%	92%	Light Rain	ENE 9 mph15 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 69°F21°C. Breezy from the ENE at 10 to 12 mph16 to 20 km/h. 63% chance of drizzle throughout the day. Humid. NightOvercast, with a low around 69°F21°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h. 58% chance of light rain overnight.
	MondayAug 17	78°F26°C	70°F21°C	0.02 in0.4 mm· 21%	59%	Drizzle	NE 11 mph18 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 70°F21°C. Breezy from the NE at 12 to 14 mph19 to 22 km/h. 21% chance of drizzle around midday. Humid. NightPartly cloudy, with a low around 70°F21°C. Breezy from the NE at 10 to 12 mph17 to 20 km/h.
	TuesdayAug 18	84°F29°C	67°F19°C	0 in0 mm· —	6%	Clear	NE 10 mph15 km/h
DayMostly clear and warm, with a high of 84°F29°C and morning low of 67°F19°C. Breezy from the NNE at 9 to 11 mph14 to 18 km/h. NightMostly clear, with a low around 68°F20°C. Breezy from the NE at 10 to 12 mph16 to 19 km/h.
	WednesdayAug 19	86°F30°C	64°F18°C	0 in0 mm· —	6%	Clear	NE 7 mph12 km/h
DayMostly clear and hot, with a high of 86°F30°C and morning low of 64°F18°C. Breezy from the NNE at 7 to 9 mph11 to 15 km/h. NightMostly clear, with a low around 66°F19°C. Breezy from the NE at 8 to 10 mph12 to 15 km/h.
	ThursdayAug 20	87°F30°C	65°F18°C	0 in0 mm· —	16%	Clear	NE 7 mph11 km/h
DayMostly clear and hot, with a high of 87°F30°C and morning low of 65°F18°C. Breezy from the NE at 7 to 10 mph11 to 16 km/h. NightMostly clear, with a low around 66°F19°C. Breezy from the NE at 7 to 10 mph11 to 16 km/h.
	FridayAug 21	86°F30°C	67°F19°C	0 in0.1 mm· 2%	27%	Clear	SSE 8 mph12 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 67°F19°C. Breezy from the S at 8 to 11 mph13 to 18 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SE at 7 to 10 mph12 to 16 km/h.
	SaturdayAug 22	80°F27°C	69°F20°C	0.02 in0.5 mm· 16%	56%	Drizzle	SSE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 69°F20°C. Breezy from the SSE at 7 to 9 mph11 to 15 km/h. 16% chance of drizzle around midday. Humid. NightPartly cloudy, with a low around 69°F21°C. Breezy from the SSE at 7 to 8 mph11 to 14 km/h.
	SundayAug 23	80°F27°C	68°F20°C	0.02 in0.6 mm· 23%	56%	Drizzle	ESE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 68°F20°C. Breezy from the ESE at 7 to 9 mph11 to 15 km/h. 23% chance of drizzle around midday. Humid. NightMostly cloudy, with a low around 69°F21°C. Breezy from the ESE at 6 to 8 mph10 to 14 km/h.
	MondayAug 24	83°F29°C	68°F20°C	0.02 in0.6 mm· 16%	43%	Drizzle	ENE 7 mph12 km/h
DayPartly cloudy and warm, with a high of 83°F29°C and morning low of 68°F20°C. Breezy from the NE at 8 to 10 mph12 to 16 km/h. 16% chance of drizzle around midday. Humid. NightPartly cloudy, with a low around 69°F21°C. Breezy from the ENE at 7 to 10 mph11 to 16 km/h.
	TuesdayAug 25	86°F30°C	68°F20°C	0.02 in0.5 mm· 6%	43%	Partly Cloudy	NE 7 mph12 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 68°F20°C. Breezy from the NE at 7 to 10 mph12 to 16 km/h. Humid. NightPartly cloudy, with a low around 69°F21°C. Breezy from the ENE at 7 to 9 mph12 to 15 km/h.
	WednesdayAug 26	85°F29°C	69°F21°C	0.02 in0.6 mm· 12%	56%	Drizzle	ENE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 69°F21°C. Breezy from the ENE at 7 to 9 mph11 to 15 km/h. 12% chance of drizzle. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the ENE at 7 to 9 mph11 to 15 km/h.
	ThursdayAug 27	85°F30°C	69°F20°C	0.03 in0.7 mm· 12%	43%	Drizzle	ENE 7 mph11 km/h
DayPartly cloudy and warm, with a high of 85°F30°C and morning low of 69°F20°C. Breezy from the NE at 7 to 9 mph11 to 14 km/h. 12% chance of drizzle. Humid. NightPartly cloudy, with a low around 70°F21°C. Breezy from the ENE at 7 to 9 mph11 to 14 km/h.

Nearby Cities

Campos dos Goytacazes20 mi31 km São Francisco de Itabapoana24 mi39 km Quissamã42 mi68 km Marataizes44 mi70 km Mimoso do Sul45 mi72 km São Fidélis45 mi72 km

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

Pattern	Example	Description
/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=11.5	Find 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: 21.6403°S, 41.0511°W·Elevation: 7m·Timezone: America/Sao_Paulo·Population: 38,708