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

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 73°F23°CLow 68°F20°CPrecip 0.01 in0.2 mm8%Cloud 59%Wind SSW 4 mph7 km/hThursday: 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 RainHigh 69°F21°CLow 67°F20°CPrecip 0.08 in2.1 mm55%Cloud 81%Wind ESE 6 mph9 km/hFriday: 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 RainHigh 70°F21°CLow 68°F20°CPrecip 0.17 in4.4 mm60%Cloud 82%Wind ENE 9 mph15 km/hSaturday: 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 CloudyHigh 72°F22°CLow 68°F20°CPrecip 0.01 in0.2 mm6%Cloud 63%Wind ENE 12 mph20 km/hSunday: 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.
ClearHigh 75°F24°CLow 68°F20°CPrecip 0 in0 mmCloud 21%Wind ENE 8 mph13 km/hMonday: 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.
ClearHigh 80°F26°CLow 70°F21°CPrecip 0 in0 mmCloud 8%Wind NNE 6 mph9 km/hTuesday: 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.
ClearHigh 81°F27°CLow 71°F22°CPrecip 0 in0.1 mm4%Cloud 22%Wind N 6 mph10 km/hWednesday: 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 1373°F23°C68°F20°C0.01 in0.2 mm· 8%59%Partly CloudySSW 4 mph7 km/h
FridayAug 1469°F21°C67°F20°C0.08 in2.1 mm· 55%81%Light RainESE 6 mph9 km/h
SaturdayAug 1570°F21°C68°F20°C0.17 in4.4 mm· 60%82%Light RainENE 9 mph15 km/h
SundayAug 1672°F22°C68°F20°C0.01 in0.2 mm· 6%63%Partly CloudyENE 12 mph20 km/h
MondayAug 1775°F24°C68°F20°C0 in0 mm· —21%ClearENE 8 mph13 km/h
TuesdayAug 1880°F26°C70°F21°C0 in0 mm· —8%ClearNNE 6 mph9 km/h
WednesdayAug 1981°F27°C71°F22°C0 in0.1 mm· 4%22%ClearN 6 mph10 km/h
ThursdayAug 2076°F25°C70°F21°C0.02 in0.5 mm· 13%67%DrizzleWNW 7 mph11 km/h
FridayAug 2171°F22°C67°F19°C0.07 in1.9 mm· 33%80%DrizzleSSW 8 mph13 km/h
SaturdayAug 2269°F21°C65°F19°C0.1 in2.5 mm· 43%67%DrizzleESE 7 mph11 km/h
SundayAug 2369°F20°C66°F19°C0.25 in6.3 mm· 61%81%Light RainESE 9 mph14 km/h
MondayAug 2471°F22°C67°F19°C0.23 in5.9 mm· 51%76%Light RainE 9 mph14 km/h
TuesdayAug 2572°F22°C68°F20°C0.19 in4.9 mm· 42%75%Light RainE 8 mph12 km/h
WednesdayAug 2673°F23°C68°F20°C0.11 in2.9 mm· 29%68%ShowersENE 8 mph13 km/h
ThursdayAug 2776°F24°C69°F21°C0.07 in1.9 mm· 16%51%DrizzleNE 8 mph13 km/h

Nearby Cities

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