Current Conditions

Santos, São Paulo

65°F18°C

Rain

Wind

SE 4 mph6 km/h

Humidity

86%

Cloud Cover

71%

As of Tuesday, September 8, 2026 at 5:44 PM GMT-3

Today's Outlook

Day

Overcast and warm, with a high of 68°F20°C. Light wind from the ESE around 3 mph6 km/h. 89% chance of light rain throughout the day.

Night

Mostly cloudy, with a low around 64°F18°C. Light wind from the NE around 4 mph6 km/h. 95% chance of rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 68°F20°C	Low 64°F18°C	Precip 0.43 in10.9 mm95%	Cloud 83%	Wind E 4 mph6 km/h	Wednesday: Overcast and warm, with a high of 68°F20°C. Light wind from the ESE around 3 mph6 km/h. 89% chance of light rain throughout the day. Wednesday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the NE around 4 mph6 km/h. 95% chance of rain throughout the night.
Rain	High 70°F21°C	Low 67°F20°C	Precip 0.91 in23 mm96%	Cloud 96%	Wind NNE 5 mph8 km/h	Thursday: Overcast and warm, with a high of 70°F21°C. Light wind from the NE around 5 mph7 km/h. 96% chance of rain throughout the day. Humid. Thursday Night: Overcast, with a low around 67°F20°C. Light wind from the NNE around 5 mph9 km/h. 94% chance of rain throughout the night.
Light Rain	High 78°F25°C	Low 69°F20°C	Precip 0.26 in6.7 mm54%	Cloud 75%	Wind NE 6 mph10 km/h	Friday: Mostly cloudy and warm, with a high of 78°F25°C and morning low of 69°F21°C. Breezy from the ENE at 7 to 8 mph11 to 12 km/h. 46% chance of showers throughout the day. Humid. Friday Night: Overcast, with a low around 69°F20°C. Light wind from the NNE around 6 mph10 km/h. 54% chance of light rain throughout the night.
Rain	High 72°F22°C	Low 65°F19°C	Precip 0.8 in20.3 mm98%	Cloud 96%	Wind SW 7 mph12 km/h	Saturday: Overcast and warm, with a high of 72°F22°C. Breezy from the W at 8 to 9 mph13 to 15 km/h. 93% chance of rain throughout the day. Humid. Saturday Night: Overcast, with a low around 65°F19°C. Breezy from the SSE at 7 mph11 km/h. 98% chance of rain throughout the night.
Rain	High 65°F18°C	Low 63°F17°C	Precip 1.05 in26.6 mm100%	Cloud 100%	Wind SE 8 mph13 km/h	Sunday: Overcast and mild, with a high of 64°F18°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 100% chance of rain throughout the day. Sunday Night: Overcast, with a low around 63°F17°C. Breezy from the SE at 8 to 9 mph12 to 14 km/h. 99% chance of rain throughout the night.
Rain	High 64°F18°C	Low 62°F17°C	Precip 0.98 in24.8 mm98%	Cloud 99%	Wind SE 7 mph11 km/h	Monday: Overcast and mild, with a high of 64°F18°C. Breezy from the ESE at 7 to 8 mph12 to 12 km/h. 98% chance of rain throughout the day. Monday Night: Overcast, with a low around 62°F17°C. Breezy from the SE at 7 to 8 mph11 to 12 km/h. 98% chance of rain throughout the night.
Rain	High 67°F19°C	Low 63°F17°C	Precip 0.4 in10.1 mm89%	Cloud 85%	Wind SSW 7 mph11 km/h	Tuesday: Overcast and mild, with a high of 67°F19°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. 72% chance of light rain throughout the day. Tuesday Night: Overcast, with a low around 63°F17°C. Light wind from the SSW around 6 mph9 km/h. 89% chance of rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	68°F20°C	64°F18°C	0.43 in10.9 mm· 95%	83%	Rain	E 4 mph6 km/h
DayOvercast and warm, with a high of 68°F20°C. Light wind from the ESE around 3 mph6 km/h. 89% chance of light rain throughout the day. NightMostly cloudy, with a low around 64°F18°C. Light wind from the NE around 4 mph6 km/h. 95% chance of rain throughout the night.
	ThursdaySep 10	70°F21°C	67°F20°C	0.91 in23 mm· 96%	96%	Rain	NNE 5 mph8 km/h
DayOvercast and warm, with a high of 70°F21°C. Light wind from the NE around 5 mph7 km/h. 96% chance of rain throughout the day. Humid. NightOvercast, with a low around 67°F20°C. Light wind from the NNE around 5 mph9 km/h. 94% chance of rain throughout the night.
	FridaySep 11	78°F25°C	69°F20°C	0.26 in6.7 mm· 54%	75%	Light Rain	NE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 69°F21°C. Breezy from the ENE at 7 to 8 mph11 to 12 km/h. 46% chance of showers throughout the day. Humid. NightOvercast, with a low around 69°F20°C. Light wind from the NNE around 6 mph10 km/h. 54% chance of light rain throughout the night.
	SaturdaySep 12	72°F22°C	65°F19°C	0.8 in20.3 mm· 98%	96%	Rain	SW 7 mph12 km/h
DayOvercast and warm, with a high of 72°F22°C. Breezy from the W at 8 to 9 mph13 to 15 km/h. 93% chance of rain throughout the day. Humid. NightOvercast, with a low around 65°F19°C. Breezy from the SSE at 7 mph11 km/h. 98% chance of rain throughout the night.
	SundaySep 13	65°F18°C	63°F17°C	1.05 in26.6 mm· 100%	100%	Rain	SE 8 mph13 km/h
DayOvercast and mild, with a high of 64°F18°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 100% chance of rain throughout the day. NightOvercast, with a low around 63°F17°C. Breezy from the SE at 8 to 9 mph12 to 14 km/h. 99% chance of rain throughout the night.
	MondaySep 14	64°F18°C	62°F17°C	0.98 in24.8 mm· 98%	99%	Rain	SE 7 mph11 km/h
DayOvercast and mild, with a high of 64°F18°C. Breezy from the ESE at 7 to 8 mph12 to 12 km/h. 98% chance of rain throughout the day. NightOvercast, with a low around 62°F17°C. Breezy from the SE at 7 to 8 mph11 to 12 km/h. 98% chance of rain throughout the night.
	TuesdaySep 15	67°F19°C	63°F17°C	0.4 in10.1 mm· 89%	85%	Rain	SSW 7 mph11 km/h
DayOvercast and mild, with a high of 67°F19°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. 72% chance of light rain throughout the day. NightOvercast, with a low around 63°F17°C. Light wind from the SSW around 6 mph9 km/h. 89% chance of rain throughout the night.
	WednesdaySep 16	66°F19°C	62°F17°C	0.32 in8.2 mm· 82%	83%	Light Rain	SSE 7 mph11 km/h
DayOvercast and mild, with a high of 66°F19°C. Breezy from the SSE at 8 to 9 mph12 to 15 km/h. 82% chance of light rain throughout the day. NightOvercast, with a low around 62°F17°C. Breezy from the SE at 6 to 8 mph10 to 13 km/h. 58% chance of light rain throughout the night.
	ThursdaySep 17	68°F20°C	62°F17°C	0.12 in3 mm· 52%	77%	Light Rain	E 8 mph14 km/h
DayOvercast and warm, with a high of 68°F20°C and morning low of 62°F17°C. Breezy from the ESE at 9 to 11 mph15 to 18 km/h. 40% chance of drizzle throughout the day. NightMostly cloudy, with a low around 62°F17°C. Breezy from the E at 8 to 9 mph13 to 15 km/h. 52% chance of light rain throughout the night.
	FridaySep 18	72°F22°C	64°F18°C	0.06 in1.5 mm· 26%	74%	Light Rain	E 7 mph12 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 64°F18°C. Breezy from the ESE at 8 to 10 mph12 to 16 km/h. 17% chance of drizzle throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the E at 7 mph11 km/h. 26% chance of light rain in the evening.
	SaturdaySep 19	73°F23°C	66°F19°C	0.16 in4 mm· 40%	80%	Light Rain	E 6 mph9 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 66°F19°C. Breezy from the ESE at 6 to 8 mph10 to 13 km/h. 33% chance of light rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the ENE around 5 mph8 km/h. 40% chance of light rain throughout the night.
	SundaySep 20	74°F24°C	67°F20°C	0.24 in6 mm· 43%	90%	Light Rain	NE 5 mph9 km/h
DayOvercast and warm, with a high of 74°F24°C and morning low of 67°F20°C. Breezy from the ENE at 6 to 7 mph9 to 11 km/h. 43% chance of light rain throughout the day. Humid. NightOvercast, with a low around 67°F20°C. Light wind from the NNE around 5 mph8 km/h. 37% chance of light rain throughout the night.
	MondaySep 21	74°F24°C	68°F20°C	0.2 in5.2 mm· 41%	87%	Light Rain	NNW 6 mph9 km/h
DayOvercast and warm, with a high of 74°F24°C and morning low of 68°F20°C. Breezy from the SSW at 6 to 8 mph10 to 12 km/h. 41% chance of light rain throughout the day. Humid. NightOvercast, with a low around 69°F20°C. Light wind from the NNE around 5 mph8 km/h. 38% chance of light rain throughout the night.
	TuesdaySep 22	74°F24°C	68°F20°C	0.19 in4.7 mm· 42%	83%	Light Rain	ESE 6 mph9 km/h
DayOvercast and warm, with a high of 74°F24°C and morning low of 68°F20°C. Breezy from the SE at 6 to 7 mph10 to 12 km/h. 42% chance of light rain throughout the day. Humid. NightOvercast, with a low around 68°F20°C. Light wind from the ENE around 5 mph8 km/h. 31% chance of light rain throughout the night.
	WednesdaySep 23	74°F23°C	67°F20°C	0.09 in2.3 mm· 34%	75%	Drizzle	ESE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 67°F20°C. Breezy from the SE at 7 to 8 mph11 to 13 km/h. 34% chance of drizzle throughout the day. Humid. NightOvercast, with a low around 67°F20°C. Light wind from the NNE around 6 mph9 km/h. 20% chance of drizzle throughout the night.

Nearby Cities

São Vicente4 mi6 km Guarujá5 mi9 km Praia Grande5 mi9 km Cubatão7 mi12 km Bertioga14 mi23 km Rio Grande da Serra16 mi25 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: 23.9608°S, 46.3336°W·Elevation: 12m·Timezone: America/Sao_Paulo·Population: 418,608