Current Conditions

São Sebastião, São Paulo

73°F23°C

Light Rain

Wind

SSE 7 mph11 km/h

Humidity

87%

Cloud Cover

79%

As of Tuesday, October 13, 2026 at 10:32 AM GMT-3

Today's Outlook

Day

Overcast and warm, with a high of 75°F24°C. Breezy from the E at 7 mph11 km/h. 46% chance of light rain in the morning. Humid.

Night

Mostly cloudy, with a low around 71°F22°C. Light wind from the ENE around 6 mph9 km/h. 20% chance of drizzle in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Light Rain	High 75°F24°C	Low 71°F22°C	Precip 0.06 in1.6 mm46%	Cloud 80%	Wind ENE 6 mph10 km/h	Tuesday: Overcast and warm, with a high of 75°F24°C. Breezy from the E at 7 mph11 km/h. 46% chance of light rain in the morning. Humid. Tuesday Night: Mostly cloudy, with a low around 71°F22°C. Light wind from the ENE around 6 mph9 km/h. 20% chance of drizzle in the evening.
Light Rain	High 75°F24°C	Low 72°F22°C	Precip 0.13 in3.3 mm71%	Cloud 91%	Wind S 6 mph10 km/h	Wednesday: Overcast and warm, with a high of 75°F24°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 25% chance of drizzle in the morning. Humid. Wednesday Night: Overcast, with a low around 72°F22°C. Light wind from the NNE around 6 mph9 km/h. 71% chance of light rain overnight.
Light Rain	High 73°F23°C	Low 72°F22°C	Precip 0.22 in5.6 mm83%	Cloud 89%	Wind SE 6 mph10 km/h	Thursday: Overcast and warm, with a high of 73°F23°C. Breezy from the SSE at 6 to 8 mph10 to 12 km/h. 55% chance of light rain in the morning. Humid. Thursday Night: Overcast, with a low around 72°F22°C. Light wind from the ESE around 6 mph9 km/h. 83% chance of light rain overnight.
Rain	High 74°F23°C	Low 71°F22°C	Precip 0.43 in11 mm90%	Cloud 91%	Wind SSW 7 mph12 km/h	Friday: Overcast and warm, with a high of 74°F23°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h. 79% chance of light rain in the morning. Humid. Friday Night: Overcast, with a low around 71°F22°C. Breezy from the SSW at 7 to 9 mph11 to 14 km/h. 90% chance of rain overnight.
Rain	High 71°F22°C	Low 69°F20°C	Precip 0.49 in12.4 mm94%	Cloud 86%	Wind SSW 9 mph14 km/h	Saturday: Overcast and warm, with a high of 70°F21°C. Breezy from the SSW at 10 mph15 km/h. 89% chance of light rain in the morning. Humid. Saturday Night: Overcast, with a low around 69°F21°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. 94% chance of rain overnight.
Showers	High 69°F21°C	Low 67°F20°C	Precip 0.18 in4.6 mm76%	Cloud 69%	Wind S 9 mph14 km/h	Sunday: Mostly cloudy and warm, with a high of 69°F21°C. Breezy from the S at 10 to 11 mph16 to 18 km/h. 76% chance of showers in the morning. Sunday Night: Mostly cloudy, with a low around 67°F20°C. Breezy from the S at 8 to 10 mph12 to 15 km/h. 65% chance of showers overnight.
Light Rain	High 69°F20°C	Low 67°F19°C	Precip 0.15 in3.9 mm57%	Cloud 75%	Wind SE 9 mph14 km/h	Monday: Mostly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 9 to 10 mph14 to 16 km/h. 57% chance of light rain in the morning. Monday Night: Mostly cloudy, with a low around 67°F19°C. Breezy from the SE at 8 to 10 mph14 to 15 km/h. 51% chance of light rain overnight.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdayOct 13	75°F24°C	71°F22°C	0.06 in1.6 mm· 46%	80%	Light Rain	ENE 6 mph10 km/h
DayOvercast and warm, with a high of 75°F24°C. Breezy from the E at 7 mph11 km/h. 46% chance of light rain in the morning. Humid. NightMostly cloudy, with a low around 71°F22°C. Light wind from the ENE around 6 mph9 km/h. 20% chance of drizzle in the evening.
	WednesdayOct 14	75°F24°C	72°F22°C	0.13 in3.3 mm· 71%	91%	Light Rain	S 6 mph10 km/h
DayOvercast and warm, with a high of 75°F24°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 25% chance of drizzle in the morning. Humid. NightOvercast, with a low around 72°F22°C. Light wind from the NNE around 6 mph9 km/h. 71% chance of light rain overnight.
	ThursdayOct 15	73°F23°C	72°F22°C	0.22 in5.6 mm· 83%	89%	Light Rain	SE 6 mph10 km/h
DayOvercast and warm, with a high of 73°F23°C. Breezy from the SSE at 6 to 8 mph10 to 12 km/h. 55% chance of light rain in the morning. Humid. NightOvercast, with a low around 72°F22°C. Light wind from the ESE around 6 mph9 km/h. 83% chance of light rain overnight.
	FridayOct 16	74°F23°C	71°F22°C	0.43 in11 mm· 90%	91%	Rain	SSW 7 mph12 km/h
DayOvercast and warm, with a high of 74°F23°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h. 79% chance of light rain in the morning. Humid. NightOvercast, with a low around 71°F22°C. Breezy from the SSW at 7 to 9 mph11 to 14 km/h. 90% chance of rain overnight.
	SaturdayOct 17	71°F22°C	69°F20°C	0.49 in12.4 mm· 94%	86%	Rain	SSW 9 mph14 km/h
DayOvercast and warm, with a high of 70°F21°C. Breezy from the SSW at 10 mph15 km/h. 89% chance of light rain in the morning. Humid. NightOvercast, with a low around 69°F21°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. 94% chance of rain overnight.
	SundayOct 18	69°F21°C	67°F20°C	0.18 in4.6 mm· 76%	69%	Showers	S 9 mph14 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Breezy from the S at 10 to 11 mph16 to 18 km/h. 76% chance of showers in the morning. NightMostly cloudy, with a low around 67°F20°C. Breezy from the S at 8 to 10 mph12 to 15 km/h. 65% chance of showers overnight.
	MondayOct 19	69°F20°C	67°F19°C	0.15 in3.9 mm· 57%	75%	Light Rain	SE 9 mph14 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 9 to 10 mph14 to 16 km/h. 57% chance of light rain in the morning. NightMostly cloudy, with a low around 67°F19°C. Breezy from the SE at 8 to 10 mph14 to 15 km/h. 51% chance of light rain overnight.
	TuesdayOct 20	69°F21°C	67°F20°C	0.19 in4.9 mm· 73%	86%	Light Rain	E 11 mph18 km/h
DayOvercast and warm, with a high of 69°F21°C. Breezy from the E at 11 to 12 mph18 to 20 km/h. 73% chance of light rain in the morning. NightOvercast, with a low around 67°F20°C. Breezy from the E at 11 to 13 mph18 to 21 km/h. 59% chance of light rain overnight.
	WednesdayOct 21	71°F22°C	69°F21°C	0.22 in5.7 mm· 56%	89%	Light Rain	E 14 mph22 km/h
DayOvercast and warm, with a high of 71°F22°C. Breezy from the E at 14 mph22 km/h. 43% chance of light rain in the morning. Humid. NightOvercast, with a low around 69°F21°C. Breezy from the E at 13 to 14 mph22 to 23 km/h. 56% chance of light rain overnight.
	ThursdayOct 22	73°F23°C	71°F22°C	0.36 in9.1 mm· 46%	95%	Light Rain	ENE 11 mph17 km/h
DayOvercast and warm, with a high of 73°F23°C. Breezy from the ENE at 10 to 11 mph17 to 18 km/h. 42% chance of light rain in the morning. Humid. NightOvercast, with a low around 71°F22°C. Breezy from the ENE at 11 to 13 mph17 to 21 km/h. 46% chance of light rain overnight.
	FridayOct 23	75°F24°C	73°F23°C	0.24 in6.1 mm· 43%	88%	Light Rain	NNW 8 mph13 km/h
DayOvercast and warm, with a high of 75°F24°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 41% chance of light rain in the morning. Humid. NightOvercast, with a low around 73°F23°C. Breezy from the N at 8 to 9 mph13 to 14 km/h. 43% chance of light rain overnight.
	SaturdayOct 24	73°F23°C	70°F21°C	0.31 in8 mm· 73%	90%	Light Rain	SSW 9 mph14 km/h
DayOvercast and warm, with a high of 73°F23°C. Breezy from the SSW at 10 mph15 km/h. 73% chance of light rain in the morning. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the SSW at 8 to 10 mph13 to 15 km/h. 70% chance of light rain overnight.
	SundayOct 25	70°F21°C	69°F20°C	0.39 in10 mm· 68%	92%	Light Rain	SSE 10 mph16 km/h
DayOvercast and warm, with a high of 70°F21°C. Breezy from the SSE at 10 to 11 mph16 to 17 km/h. 68% chance of light rain in the morning. Humid. NightOvercast, with a low around 69°F20°C. Breezy from the SE at 9 to 10 mph15 to 16 km/h. 64% chance of light rain overnight.
	MondayOct 26	71°F22°C	69°F21°C	0.38 in9.6 mm· 57%	92%	Light Rain	ESE 11 mph17 km/h
DayOvercast and warm, with a high of 71°F22°C. Breezy from the ESE at 11 to 12 mph18 to 19 km/h. 57% chance of light rain in the morning. NightOvercast, with a low around 69°F21°C. Breezy from the E at 10 to 11 mph17 to 18 km/h. 57% chance of light rain overnight.
	TuesdayOct 27	72°F22°C	70°F21°C	0.33 in8.5 mm· 52%	86%	Light Rain	E 10 mph16 km/h
DayOvercast and warm, with a high of 72°F22°C. Breezy from the ESE at 10 to 11 mph17 to 18 km/h. 47% chance of light rain in the morning. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the E at 10 to 11 mph16 to 17 km/h. 52% chance of light rain overnight.

Nearby Cities

Ilhabela3 mi6 km Caraguatatuba10 mi16 km Paraibuna30 mi49 km Ubatuba31 mi50 km Salesópolis32 mi52 km Biritiba Mirim42 mi67 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: 23.7600°S, 45.4097°W·Elevation: 6m·Timezone: America/Sao_Paulo·Population: 81,595