Current Conditions

São Sebastião, São Paulo

70°F21°C

Drizzle

Wind

SW 9 mph14 km/h

Humidity

81%

Cloud Cover

61%

As of Thursday, July 23, 2026 at 2:57 PM GMT-3

Today's Outlook

Day

Mostly cloudy and warm, with a high of 71°F22°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. 27% chance of drizzle in the morning.

Night

Overcast, with a low around 66°F19°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 20% chance of drizzle throughout the night.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
ThursdayJul 23	Drizzle	High 71°F22°C	Low 66°F19°C	Precip 0.02 in0.6 mm27%	Cloud 68%	Wind SW 8 mph13 km/h	Thursday: Mostly cloudy and warm, with a high of 71°F22°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. 27% chance of drizzle in the morning. Thursday Night: Overcast, with a low around 66°F19°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 20% chance of drizzle throughout the night.
FridayJul 24	Light Rain	High 66°F19°C	Low 65°F18°C	Precip 0.31 in8 mm88%	Cloud 99%	Wind SW 6 mph10 km/h	Friday: Overcast and mild, with a high of 65°F19°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 88% chance of light rain throughout the day. Friday Night: Overcast, with a low around 65°F18°C. Breezy from the SW at 7 to 10 mph11 to 16 km/h. 71% chance of light rain throughout the night.
SaturdayJul 25	Drizzle	High 68°F20°C	Low 65°F18°C	Precip 0.06 in1.5 mm31%	Cloud 78%	Wind SW 5 mph8 km/h	Saturday: Overcast and mild, with a high of 68°F20°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. 31% chance of drizzle in the morning. Saturday Night: Mostly cloudy, with a low around 65°F18°C. Light wind from the SW around 4 mph7 km/h. 22% chance of drizzle throughout the night.
SundayJul 26	Clear	High 70°F21°C	Low 64°F18°C	Precip 0 in0.1 mm3%	Cloud 40%	Wind ENE 5 mph8 km/h	Sunday: Partly cloudy and warm, with a high of 70°F21°C and morning low of 64°F18°C. Breezy from the E at 5 to 7 mph8 to 12 km/h. Sunday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the ENE at 6 to 8 mph9 to 13 km/h.
MondayJul 27	Clear	High 75°F24°C	Low 66°F19°C	Precip 0 in0 mm—	Cloud 11%	Wind NE 7 mph11 km/h	Monday: Mostly clear and warm, with a high of 75°F24°C and morning low of 66°F19°C. Breezy from the NE at 6 to 7 mph9 to 12 km/h. Humid. Monday Night: Mostly clear, with a low around 67°F19°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h.
TuesdayJul 28	Clear	High 80°F27°C	Low 69°F20°C	Precip 0 in0 mm—	Cloud 2%	Wind NNE 7 mph11 km/h	Tuesday: Mostly clear and warm, with a high of 80°F27°C and morning low of 69°F20°C. Breezy from the N at 6 to 7 mph10 to 12 km/h. Humid. Tuesday Night: Mostly clear, with a low around 69°F20°C. Breezy from the NNE at 7 to 8 mph12 to 13 km/h.
WednesdayJul 29	Clear	High 82°F28°C	Low 71°F22°C	Precip 0 in0.1 mm3%	Cloud 19%	Wind NNW 9 mph14 km/h	Wednesday: Mostly clear and warm, with a high of 82°F28°C and morning low of 71°F22°C. Breezy from the NNW at 9 to 10 mph14 to 16 km/h. Wednesday Night: Mostly clear, with a low around 72°F22°C. Breezy from the NNW at 9 mph14 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	ThursdayJul 23	71°F22°C	66°F19°C	0.02 in0.6 mm· 27%	68%	Drizzle	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 71°F22°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. 27% chance of drizzle in the morning. NightOvercast, with a low around 66°F19°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 20% chance of drizzle throughout the night.
	FridayJul 24	66°F19°C	65°F18°C	0.31 in8 mm· 88%	99%	Light Rain	SW 6 mph10 km/h
DayOvercast and mild, with a high of 65°F19°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 88% chance of light rain throughout the day. NightOvercast, with a low around 65°F18°C. Breezy from the SW at 7 to 10 mph11 to 16 km/h. 71% chance of light rain throughout the night.
	SaturdayJul 25	68°F20°C	65°F18°C	0.06 in1.5 mm· 31%	78%	Drizzle	SW 5 mph8 km/h
DayOvercast and mild, with a high of 68°F20°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. 31% chance of drizzle in the morning. NightMostly cloudy, with a low around 65°F18°C. Light wind from the SW around 4 mph7 km/h. 22% chance of drizzle throughout the night.
	SundayJul 26	70°F21°C	64°F18°C	0 in0.1 mm· 3%	40%	Clear	ENE 5 mph8 km/h
DayPartly cloudy and warm, with a high of 70°F21°C and morning low of 64°F18°C. Breezy from the E at 5 to 7 mph8 to 12 km/h. NightPartly cloudy, with a low around 65°F18°C. Breezy from the ENE at 6 to 8 mph9 to 13 km/h.
	MondayJul 27	75°F24°C	66°F19°C	0 in0 mm· —	11%	Clear	NE 7 mph11 km/h
DayMostly clear and warm, with a high of 75°F24°C and morning low of 66°F19°C. Breezy from the NE at 6 to 7 mph9 to 12 km/h. Humid. NightMostly clear, with a low around 67°F19°C. Breezy from the NE at 7 to 8 mph12 to 13 km/h.
	TuesdayJul 28	80°F27°C	69°F20°C	0 in0 mm· —	2%	Clear	NNE 7 mph11 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 69°F20°C. Breezy from the N at 6 to 7 mph10 to 12 km/h. Humid. NightMostly clear, with a low around 69°F20°C. Breezy from the NNE at 7 to 8 mph12 to 13 km/h.
	WednesdayJul 29	82°F28°C	71°F22°C	0 in0.1 mm· 3%	19%	Clear	NNW 9 mph14 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 71°F22°C. Breezy from the NNW at 9 to 10 mph14 to 16 km/h. NightMostly clear, with a low around 72°F22°C. Breezy from the NNW at 9 mph14 km/h.
	ThursdayJul 30	72°F22°C	68°F20°C	0.1 in2.6 mm· 43%	79%	Drizzle	WSW 7 mph12 km/h
DayOvercast and warm, with a high of 71°F22°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 39% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Breezy from the WSW at 7 to 8 mph11 to 13 km/h. 43% chance of drizzle in the evening.
	FridayJul 31	70°F21°C	67°F19°C	0.11 in2.8 mm· 42%	69%	Drizzle	E 8 mph13 km/h
DayMostly cloudy and warm, with a high of 70°F21°C. Breezy from the E at 9 to 11 mph14 to 17 km/h. 42% chance of drizzle throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the E at 8 to 11 mph13 to 18 km/h. 42% chance of drizzle throughout the night.
	SaturdayAug 1	73°F23°C	67°F20°C	0.02 in0.5 mm· 21%	31%	Drizzle	ENE 11 mph17 km/h
DayPartly cloudy and warm, with a high of 73°F23°C and morning low of 67°F20°C. Breezy from the ENE at 10 to 12 mph17 to 19 km/h. 11% chance of drizzle. Humid. NightPartly cloudy, with a low around 68°F20°C. Breezy from the ENE at 11 mph17 km/h. 21% chance of drizzle overnight.
	SundayAug 2	77°F25°C	68°F20°C	0 in0 mm· —	18%	Clear	NE 7 mph11 km/h
DayMostly clear and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h. NightMostly clear, with a low around 69°F20°C. Breezy from the NE at 8 to 9 mph12 to 14 km/h.
	MondayAug 3	77°F25°C	69°F21°C	0 in0 mm· —	44%	Partly Cloudy	NNE 6 mph10 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 69°F21°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. NightPartly cloudy, with a low around 70°F21°C. Light wind from the NNE around 6 mph10 km/h.
	TuesdayAug 4	76°F25°C	69°F21°C	0.02 in0.4 mm· 9%	51%	Partly Cloudy	NNE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 69°F21°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. NightMostly cloudy, with a low around 70°F21°C. Light wind from the NNE around 6 mph10 km/h.
	WednesdayAug 5	75°F24°C	69°F20°C	0.04 in0.9 mm· 12%	49%	Drizzle	NE 7 mph11 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 69°F20°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. 12% chance of drizzle throughout the day. NightMostly cloudy, with a low around 69°F21°C. Breezy from the NE at 7 mph11 km/h.
	ThursdayAug 6	75°F24°C	69°F20°C	0.03 in0.8 mm· 14%	54%	Drizzle	NE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 69°F20°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h. NightMostly cloudy, with a low around 69°F21°C. Breezy from the NE at 7 mph11 km/h. 14% chance of drizzle in the evening.

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