Current Conditions

São Sebastião, São Paulo

74°F23°C

Drizzle

Wind

S 5 mph9 km/h

Humidity

83%

Cloud Cover

57%

As of Thursday, August 13, 2026 at 12:56 PM GMT-3

Today's Outlook

Day

Mostly cloudy and warm, with a high of 74°F23°C. Light wind from the SSW around 4 mph7 km/h. Humid.

Night

Mostly cloudy, with a low around 68°F20°C. Light wind from the SSW around 4 mph7 km/h. 13% chance of drizzle.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 74°F23°C	Low 68°F20°C	Precip 0.01 in0.2 mm13%	Cloud 56%	Wind SSW 4 mph7 km/h	Thursday: Mostly cloudy and warm, with a high of 74°F23°C. Light wind from the SSW around 4 mph7 km/h. Humid. Thursday Night: Mostly cloudy, with a low around 68°F20°C. Light wind from the SSW around 4 mph7 km/h. 13% chance of drizzle.
Light Rain	High 69°F21°C	Low 67°F20°C	Precip 0.09 in2.4 mm53%	Cloud 79%	Wind ESE 6 mph9 km/h	Friday: Overcast and warm, with a high of 69°F21°C. Breezy from the SE at 5 to 7 mph8 to 12 km/h. 53% chance of light rain throughout the day. Humid. Friday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the E at 6 to 9 mph10 to 14 km/h. 51% chance of drizzle in the evening.
Light Rain	High 70°F21°C	Low 68°F20°C	Precip 0.15 in3.9 mm60%	Cloud 82%	Wind ENE 10 mph16 km/h	Saturday: Overcast and warm, with a high of 70°F21°C. Breezy from the ENE at 10 to 11 mph16 to 17 km/h. 60% chance of light rain throughout the day. Humid. Saturday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the ENE at 11 to 12 mph17 to 19 km/h. 47% chance of drizzle throughout the night.
Partly Cloudy	High 72°F22°C	Low 68°F20°C	Precip 0.01 in0.2 mm5%	Cloud 62%	Wind ENE 12 mph20 km/h	Sunday: Mostly cloudy and warm, with a high of 72°F22°C. Breezy from the ENE at 12 to 14 mph20 to 22 km/h. Humid. Sunday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the ENE at 12 to 13 mph20 to 21 km/h.
Clear	High 75°F24°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 18%	Wind ENE 8 mph14 km/h	Monday: Mostly clear and warm, with a high of 75°F24°C and morning low of 68°F20°C. Breezy from the ENE at 8 to 10 mph13 to 15 km/h. Humid. Monday Night: Mostly clear, with a low around 69°F20°C. Breezy from the NE at 9 to 10 mph14 to 16 km/h.
Clear	High 80°F27°C	Low 70°F21°C	Precip 0 in0.1 mm3%	Cloud 7%	Wind NNE 6 mph10 km/h	Tuesday: Mostly clear and warm, with a high of 80°F27°C and morning low of 70°F21°C. Light wind from the NNE around 5 mph9 km/h. Humid. Tuesday Night: Mostly clear, with a low around 70°F21°C. Breezy from the NNE at 7 mph10 km/h.
Clear	High 80°F27°C	Low 71°F22°C	Precip 0.01 in0.2 mm6%	Cloud 26%	Wind NNW 6 mph10 km/h	Wednesday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 71°F22°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. Humid. Wednesday Night: Partly cloudy, with a low around 72°F22°C. Light wind from the N around 6 mph10 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdayAug 13	74°F23°C	68°F20°C	0.01 in0.2 mm· 13%	56%	Drizzle	SSW 4 mph7 km/h
DayMostly cloudy and warm, with a high of 74°F23°C. Light wind from the SSW around 4 mph7 km/h. Humid. NightMostly cloudy, with a low around 68°F20°C. Light wind from the SSW around 4 mph7 km/h. 13% chance of drizzle.
	FridayAug 14	69°F21°C	67°F20°C	0.09 in2.4 mm· 53%	79%	Light Rain	ESE 6 mph9 km/h
DayOvercast and warm, with a high of 69°F21°C. Breezy from the SE at 5 to 7 mph8 to 12 km/h. 53% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Breezy from the E at 6 to 9 mph10 to 14 km/h. 51% chance of drizzle in the evening.
	SaturdayAug 15	70°F21°C	68°F20°C	0.15 in3.9 mm· 60%	82%	Light Rain	ENE 10 mph16 km/h
DayOvercast and warm, with a high of 70°F21°C. Breezy from the ENE at 10 to 11 mph16 to 17 km/h. 60% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Breezy from the ENE at 11 to 12 mph17 to 19 km/h. 47% chance of drizzle throughout the night.
	SundayAug 16	72°F22°C	68°F20°C	0.01 in0.2 mm· 5%	62%	Partly Cloudy	ENE 12 mph20 km/h
DayMostly cloudy and warm, with a high of 72°F22°C. Breezy from the ENE at 12 to 14 mph20 to 22 km/h. Humid. NightMostly cloudy, with a low around 68°F20°C. Breezy from the ENE at 12 to 13 mph20 to 21 km/h.
	MondayAug 17	75°F24°C	68°F20°C	0 in0 mm· —	18%	Clear	ENE 8 mph14 km/h
DayMostly clear and warm, with a high of 75°F24°C and morning low of 68°F20°C. Breezy from the ENE at 8 to 10 mph13 to 15 km/h. Humid. NightMostly clear, with a low around 69°F20°C. Breezy from the NE at 9 to 10 mph14 to 16 km/h.
	TuesdayAug 18	80°F27°C	70°F21°C	0 in0.1 mm· 3%	7%	Clear	NNE 6 mph10 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 70°F21°C. Light wind from the NNE around 5 mph9 km/h. Humid. NightMostly clear, with a low around 70°F21°C. Breezy from the NNE at 7 mph10 km/h.
	WednesdayAug 19	80°F27°C	71°F22°C	0.01 in0.2 mm· 6%	26%	Clear	NNW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 71°F22°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. Humid. NightPartly cloudy, with a low around 72°F22°C. Light wind from the N around 6 mph10 km/h.
	ThursdayAug 20	76°F25°C	69°F21°C	0.02 in0.5 mm· 8%	63%	Partly Cloudy	NNW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 69°F21°C. Breezy from the NE at 7 to 8 mph11 to 13 km/h. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the NNW at 7 mph10 km/h.
	FridayAug 21	71°F22°C	67°F19°C	0.09 in2.2 mm· 35%	78%	Drizzle	SW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 70°F21°C. Breezy from the SSW at 10 to 11 mph16 to 18 km/h. 29% chance of drizzle throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 35% chance of drizzle throughout the night.
	SaturdayAug 22	69°F21°C	66°F19°C	0.11 in2.7 mm· 42%	65%	Drizzle	ESE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Breezy from the SE at 7 to 9 mph12 to 14 km/h. 31% chance of drizzle throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h. 42% chance of drizzle throughout the night.
	SundayAug 23	68°F20°C	66°F19°C	0.28 in7 mm· 69%	82%	Light Rain	ESE 9 mph14 km/h
DayOvercast and warm, with a high of 68°F20°C. Breezy from the ESE at 9 to 10 mph15 to 16 km/h. 62% chance of light rain throughout the day. NightOvercast, with a low around 66°F19°C. Breezy from the ESE at 8 to 10 mph14 to 16 km/h. 69% chance of light rain throughout the night.
	MondayAug 24	70°F21°C	66°F19°C	0.3 in7.5 mm· 60%	81%	Light Rain	E 9 mph15 km/h
DayOvercast and warm, with a high of 70°F21°C. Breezy from the E at 9 to 10 mph15 to 16 km/h. 49% chance of light rain throughout the day. NightOvercast, with a low around 66°F19°C. Breezy from the E at 9 to 10 mph14 to 16 km/h. 60% chance of light rain throughout the night.
	TuesdayAug 25	71°F22°C	67°F20°C	0.19 in4.9 mm· 38%	74%	Light Rain	ESE 8 mph12 km/h
DayMostly cloudy and warm, with a high of 71°F22°C. Breezy from the SE at 8 to 9 mph12 to 14 km/h. 34% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 67°F20°C. Breezy from the E at 8 mph12 km/h. 38% chance of light rain throughout the night.
	WednesdayAug 26	72°F22°C	68°F20°C	0.15 in3.7 mm· 35%	69%	Showers	ENE 8 mph14 km/h
DayMostly cloudy and warm, with a high of 72°F22°C. Breezy from the E at 9 mph14 km/h. 35% chance of drizzle throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the ENE at 8 to 9 mph13 to 14 km/h. 35% chance of showers throughout the night.
	ThursdayAug 27	75°F24°C	68°F20°C	0.07 in1.7 mm· 21%	50%	Drizzle	NE 9 mph14 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 68°F20°C. Breezy from the ENE at 8 to 9 mph14 to 15 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the NE at 9 mph14 km/h. 21% chance of drizzle throughout the night.

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.

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Coordinates: 23.7600°S, 45.4097°W·Elevation: 6m·Timezone: America/Sao_Paulo·Population: 81,595