Current Conditions

São Sebastião, São Paulo

73°F23°C

Partly Cloudy

Wind

S 6 mph9 km/h

Humidity

84%

Cloud Cover

64%

As of Thursday, August 13, 2026 at 12:38 PM GMT-3

Today's Outlook

Day

Mostly cloudy and warm, with a high of 73°F23°C. Light wind from the SSW around 5 mph8 km/h. Humid.

Night

Mostly cloudy, with a low around 68°F20°C. Light wind from the SW around 4 mph6 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 73°F23°C	Low 68°F20°C	Precip 0.01 in0.2 mm8%	Cloud 59%	Wind SSW 4 mph7 km/h	Thursday: Mostly cloudy and warm, with a high of 73°F23°C. Light wind from the SSW around 5 mph8 km/h. Humid. Thursday Night: Mostly cloudy, with a low around 68°F20°C. Light wind from the SW around 4 mph6 km/h.
Light Rain	High 69°F21°C	Low 67°F20°C	Precip 0.08 in2.1 mm55%	Cloud 81%	Wind ESE 6 mph9 km/h	Friday: Overcast and warm, with a high of 69°F21°C. Breezy from the ESE at 5 to 7 mph8 to 12 km/h. 55% chance of light rain throughout the day. Humid. Friday Night: Overcast, with a low around 67°F20°C. Breezy from the E at 6 to 9 mph10 to 14 km/h. 41% chance of drizzle in the evening.
Light Rain	High 70°F21°C	Low 68°F20°C	Precip 0.17 in4.4 mm60%	Cloud 82%	Wind ENE 9 mph15 km/h	Saturday: Overcast and warm, with a high of 70°F21°C. Breezy from the ENE at 9 to 10 mph14 to 16 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 10 to 11 mph16 to 18 km/h. 43% chance of drizzle throughout the night.
Partly Cloudy	High 72°F22°C	Low 68°F20°C	Precip 0.01 in0.2 mm6%	Cloud 63%	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 13 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 21%	Wind ENE 8 mph13 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 9 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°F26°C	Low 70°F21°C	Precip 0 in0 mm—	Cloud 8%	Wind NNE 6 mph9 km/h	Tuesday: Mostly clear and warm, with a high of 80°F26°C and morning low of 70°F21°C. Light wind from the NNE around 5 mph8 km/h. Humid. Tuesday Night: Mostly clear, with a low around 70°F21°C. Breezy from the NNE at 7 mph11 km/h.
Clear	High 81°F27°C	Low 71°F22°C	Precip 0 in0.1 mm4%	Cloud 22%	Wind N 6 mph10 km/h	Wednesday: Mostly clear and warm, with a high of 81°F27°C and morning low of 71°F22°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. Humid. Wednesday Night: Mostly clear, 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	73°F23°C	68°F20°C	0.01 in0.2 mm· 8%	59%	Partly Cloudy	SSW 4 mph7 km/h
DayMostly cloudy and warm, with a high of 73°F23°C. Light wind from the SSW around 5 mph8 km/h. Humid. NightMostly cloudy, with a low around 68°F20°C. Light wind from the SW around 4 mph6 km/h.
	FridayAug 14	69°F21°C	67°F20°C	0.08 in2.1 mm· 55%	81%	Light Rain	ESE 6 mph9 km/h
DayOvercast and warm, with a high of 69°F21°C. Breezy from the ESE at 5 to 7 mph8 to 12 km/h. 55% chance of light rain throughout the day. Humid. NightOvercast, with a low around 67°F20°C. Breezy from the E at 6 to 9 mph10 to 14 km/h. 41% chance of drizzle in the evening.
	SaturdayAug 15	70°F21°C	68°F20°C	0.17 in4.4 mm· 60%	82%	Light Rain	ENE 9 mph15 km/h
DayOvercast and warm, with a high of 70°F21°C. Breezy from the ENE at 9 to 10 mph14 to 16 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 10 to 11 mph16 to 18 km/h. 43% chance of drizzle throughout the night.
	SundayAug 16	72°F22°C	68°F20°C	0.01 in0.2 mm· 6%	63%	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 13 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· —	21%	Clear	ENE 8 mph13 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 9 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°F26°C	70°F21°C	0 in0 mm· —	8%	Clear	NNE 6 mph9 km/h
DayMostly clear and warm, with a high of 80°F26°C and morning low of 70°F21°C. Light wind from the NNE around 5 mph8 km/h. Humid. NightMostly clear, with a low around 70°F21°C. Breezy from the NNE at 7 mph11 km/h.
	WednesdayAug 19	81°F27°C	71°F22°C	0 in0.1 mm· 4%	22%	Clear	N 6 mph10 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 71°F22°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. Humid. NightMostly clear, with a low around 72°F22°C. Light wind from the N around 6 mph10 km/h.
	ThursdayAug 20	76°F25°C	70°F21°C	0.02 in0.5 mm· 13%	67%	Drizzle	WNW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 70°F21°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the NW at 7 mph11 km/h. 13% chance of drizzle in the evening.
	FridayAug 21	71°F22°C	67°F19°C	0.07 in1.9 mm· 33%	80%	Drizzle	SSW 8 mph13 km/h
DayOvercast and warm, with a high of 70°F21°C. Breezy from the SSW at 9 to 10 mph15 to 17 km/h. 33% chance of drizzle throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the SSW at 7 mph11 km/h. 31% chance of drizzle throughout the night.
	SaturdayAug 22	69°F21°C	65°F19°C	0.1 in2.5 mm· 43%	67%	Drizzle	ESE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Breezy from the SE at 7 to 8 mph11 to 13 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. 43% chance of drizzle throughout the night.
	SundayAug 23	69°F20°C	66°F19°C	0.25 in6.3 mm· 61%	81%	Light Rain	ESE 9 mph14 km/h
DayOvercast and warm, with a high of 69°F20°C. Breezy from the ESE at 9 to 10 mph15 to 17 km/h. 54% 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. 61% chance of light rain throughout the night.
	MondayAug 24	71°F22°C	67°F19°C	0.23 in5.9 mm· 51%	76%	Light Rain	E 9 mph14 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 67°F19°C. Breezy from the E at 9 mph14 km/h. 38% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 67°F19°C. Breezy from the E at 9 to 10 mph14 to 16 km/h. 51% chance of light rain throughout the night.
	TuesdayAug 25	72°F22°C	68°F20°C	0.19 in4.9 mm· 42%	75%	Light Rain	E 8 mph12 km/h
DayMostly cloudy and warm, with a high of 72°F22°C. Breezy from the SE at 8 mph12 km/h. 34% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Breezy from the ENE at 8 mph12 km/h. 42% chance of light rain throughout the night.
	WednesdayAug 26	73°F23°C	68°F20°C	0.11 in2.9 mm· 29%	68%	Showers	ENE 8 mph13 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 68°F20°C. Breezy from the ENE at 8 to 9 mph13 to 14 km/h. 27% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Breezy from the NE at 8 mph12 km/h. 29% chance of showers throughout the night.
	ThursdayAug 27	76°F24°C	69°F21°C	0.07 in1.9 mm· 16%	51%	Drizzle	NE 8 mph13 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 69°F21°C. Breezy from the NE at 8 mph13 km/h. 16% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 69°F21°C. Breezy from the NE at 8 mph13 km/h. 15% 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