Current Conditions

São Tomé, São Tomé Island

77°F25°C

Cloudy

Wind

SSW 12 mph19 km/h

Humidity

84%

Cloud Cover

86%

As of Wednesday, September 2, 2026 at 4:31 PM GMT

Today's Outlook

Day

Overcast and warm, with a high of 77°F25°C. Breezy from the SSW at 13 mph21 km/h. Heavy, humid air.

Night

Overcast, with a low around 77°F25°C. Breezy from the SSW at 12 mph19 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Cloudy	High 77°F25°C	Low 77°F25°C	Precip 0.01 in0.2 mm8%	Cloud 87%	Wind SSW 12 mph20 km/h	Wednesday: Overcast and warm, with a high of 77°F25°C. Breezy from the SSW at 13 mph21 km/h. Heavy, humid air. Wednesday Night: Overcast, with a low around 77°F25°C. Breezy from the SSW at 12 mph19 km/h.
Cloudy	High 77°F25°C	Low 76°F25°C	Precip 0.02 in0.5 mm6%	Cloud 80%	Wind S 12 mph19 km/h	Thursday: Mostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 12 to 13 mph20 to 21 km/h. Heavy, humid air. Thursday Night: Overcast, with a low around 76°F25°C. Breezy from the SSW at 12 mph19 km/h.
Drizzle	High 77°F25°C	Low 76°F24°C	Precip 0.02 in0.5 mm12%	Cloud 73%	Wind SSW 12 mph19 km/h	Friday: Mostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 12 to 13 mph19 to 20 km/h. Heavy, humid air. Friday Night: Mostly cloudy, with a low around 76°F24°C. Breezy from the SSW at 11 to 12 mph18 to 19 km/h. 12% chance of drizzle overnight.
Drizzle	High 77°F25°C	Low 76°F25°C	Precip 0.04 in1 mm22%	Cloud 78%	Wind SSW 15 mph23 km/h	Saturday: Mostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 15 mph24 km/h. 22% chance of drizzle in the morning. Heavy, humid air. Saturday Night: Overcast, with a low around 76°F25°C. Breezy from the SSW at 14 to 15 mph23 to 25 km/h. 22% chance of drizzle throughout the night.
Drizzle	High 77°F25°C	Low 76°F24°C	Precip 0.04 in0.9 mm24%	Cloud 75%	Wind SSW 14 mph23 km/h	Sunday: Mostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 14 to 15 mph23 to 25 km/h. 24% chance of drizzle in the morning. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 76°F24°C. Breezy from the SSW at 14 to 15 mph22 to 25 km/h. 22% chance of drizzle overnight.
Partly Cloudy	High 77°F25°C	Low 76°F24°C	Precip 0.02 in0.5 mm6%	Cloud 74%	Wind S 12 mph19 km/h	Monday: Mostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 11 to 13 mph18 to 20 km/h. Heavy, humid air. Monday Night: Mostly cloudy, with a low around 76°F24°C. Breezy from the S at 12 to 13 mph19 to 21 km/h.
Drizzle	High 77°F25°C	Low 76°F25°C	Precip 0.03 in0.7 mm18%	Cloud 79%	Wind S 12 mph19 km/h	Tuesday: Mostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 11 to 12 mph18 to 19 km/h. Heavy, humid air. Tuesday Night: Overcast, with a low around 76°F25°C. Breezy from the S at 12 to 14 mph19 to 22 km/h. 18% chance of drizzle in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	77°F25°C	77°F25°C	0.01 in0.2 mm· 8%	87%	Cloudy	SSW 12 mph20 km/h
DayOvercast and warm, with a high of 77°F25°C. Breezy from the SSW at 13 mph21 km/h. Heavy, humid air. NightOvercast, with a low around 77°F25°C. Breezy from the SSW at 12 mph19 km/h.
	ThursdaySep 3	77°F25°C	76°F25°C	0.02 in0.5 mm· 6%	80%	Cloudy	S 12 mph19 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 12 to 13 mph20 to 21 km/h. Heavy, humid air. NightOvercast, with a low around 76°F25°C. Breezy from the SSW at 12 mph19 km/h.
	FridaySep 4	77°F25°C	76°F24°C	0.02 in0.5 mm· 12%	73%	Drizzle	SSW 12 mph19 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 12 to 13 mph19 to 20 km/h. Heavy, humid air. NightMostly cloudy, with a low around 76°F24°C. Breezy from the SSW at 11 to 12 mph18 to 19 km/h. 12% chance of drizzle overnight.
	SaturdaySep 5	77°F25°C	76°F25°C	0.04 in1 mm· 22%	78%	Drizzle	SSW 15 mph23 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 15 mph24 km/h. 22% chance of drizzle in the morning. Heavy, humid air. NightOvercast, with a low around 76°F25°C. Breezy from the SSW at 14 to 15 mph23 to 25 km/h. 22% chance of drizzle throughout the night.
	SundaySep 6	77°F25°C	76°F24°C	0.04 in0.9 mm· 24%	75%	Drizzle	SSW 14 mph23 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 14 to 15 mph23 to 25 km/h. 24% chance of drizzle in the morning. Heavy, humid air. NightMostly cloudy, with a low around 76°F24°C. Breezy from the SSW at 14 to 15 mph22 to 25 km/h. 22% chance of drizzle overnight.
	MondaySep 7	77°F25°C	76°F24°C	0.02 in0.5 mm· 6%	74%	Partly Cloudy	S 12 mph19 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 11 to 13 mph18 to 20 km/h. Heavy, humid air. NightMostly cloudy, with a low around 76°F24°C. Breezy from the S at 12 to 13 mph19 to 21 km/h.
	TuesdaySep 8	77°F25°C	76°F25°C	0.03 in0.7 mm· 18%	79%	Drizzle	S 12 mph19 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 11 to 12 mph18 to 19 km/h. Heavy, humid air. NightOvercast, with a low around 76°F25°C. Breezy from the S at 12 to 14 mph19 to 22 km/h. 18% chance of drizzle in the evening.
	WednesdaySep 9	77°F25°C	76°F25°C	0.05 in1.2 mm· 29%	71%	Drizzle	S 15 mph24 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 15 mph24 km/h. 23% chance of drizzle throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 76°F25°C. Breezy from the S at 15 mph24 km/h. 29% chance of drizzle throughout the night.
	ThursdaySep 10	77°F25°C	76°F24°C	0.02 in0.5 mm· 11%	64%	Drizzle	SSW 14 mph22 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 14 to 15 mph23 to 24 km/h. Heavy, humid air. NightMostly cloudy, with a low around 76°F24°C. Breezy from the SSW at 14 to 15 mph22 to 25 km/h. 11% chance of drizzle.
	FridaySep 11	77°F25°C	76°F24°C	0.02 in0.5 mm· 8%	70%	Partly Cloudy	SSW 12 mph20 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 12 to 13 mph20 to 22 km/h. Heavy, humid air. NightMostly cloudy, with a low around 76°F24°C. Breezy from the SSW at 12 to 14 mph20 to 22 km/h.
	SaturdaySep 12	77°F25°C	76°F25°C	0.02 in0.5 mm· 8%	79%	Partly Cloudy	SSW 12 mph19 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 12 mph19 km/h. Heavy, humid air. NightMostly cloudy, with a low around 76°F25°C. Breezy from the SSW at 12 mph19 km/h.
	SundaySep 13	77°F25°C	76°F25°C	0.02 in0.6 mm· 9%	74%	Partly Cloudy	SSW 12 mph20 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 12 mph20 km/h. Heavy, humid air. NightMostly cloudy, with a low around 76°F25°C. Breezy from the SSW at 12 to 13 mph20 to 20 km/h.
	MondaySep 14	77°F25°C	76°F25°C	0.04 in0.9 mm· 15%	69%	Drizzle	S 13 mph21 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 13 mph21 km/h. 15% chance of drizzle throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 76°F25°C. Breezy from the SSW at 13 mph21 km/h. 11% chance of drizzle overnight.
	TuesdaySep 15	77°F25°C	76°F25°C	0.03 in0.7 mm· 14%	64%	Drizzle	SSW 13 mph21 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the S at 13 mph21 km/h. 14% chance of drizzle in the morning. Heavy, humid air. NightMostly cloudy, with a low around 76°F25°C. Breezy from the SSW at 13 to 14 mph21 to 22 km/h. 11% chance of drizzle.
	WednesdaySep 16	77°F25°C	76°F25°C	0.03 in0.8 mm· 13%	63%	Drizzle	SSW 14 mph23 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the SSW at 14 mph23 km/h. 11% chance of drizzle. Heavy, humid air. NightMostly cloudy, with a low around 76°F25°C. Breezy from the SSW at 14 mph23 km/h. 13% chance of drizzle overnight.

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: 0.3376°N, 6.7299°E·Elevation: 140m·Timezone: Africa/Sao_Tome·Population: 53,300