Current Conditions

São Tomé, São Tomé Island

77°F25°C

Partly Cloudy

Wind

S 13 mph20 km/h

Humidity

83%

Cloud Cover

73%

As of Wednesday, September 23, 2026 at 1:25 AM GMT

Today's Outlook

Day

Overcast and warm, with a high of 78°F25°C. Breezy from the S at 13 mph20 km/h. Heavy, humid air.

Night

Mostly cloudy, with a low around 76°F25°C. Breezy from the S at 12 to 13 mph20 to 20 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 78°F25°C	Low 76°F25°C	Precip 0.01 in0.3 mm2%	Cloud 75%	Wind S 12 mph20 km/h	Wednesday: Overcast and warm, with a high of 78°F25°C. Breezy from the S at 13 mph20 km/h. Heavy, humid air. Wednesday Night: Mostly cloudy, with a low around 76°F25°C. Breezy from the S at 12 to 13 mph20 to 20 km/h.
Partly Cloudy	High 78°F26°C	Low 77°F25°C	Precip 0.01 in0.3 mm3%	Cloud 50%	Wind S 11 mph17 km/h	Thursday: Mostly cloudy and warm, with a high of 78°F26°C. Breezy from the S at 11 mph17 km/h. Heavy, humid air. Thursday Night: Partly cloudy, with a low around 77°F25°C. Breezy from the SSW at 11 to 12 mph17 to 19 km/h.
Drizzle	High 78°F26°C	Low 77°F25°C	Precip 0.02 in0.6 mm17%	Cloud 52%	Wind SSW 12 mph19 km/h	Friday: Mostly cloudy and warm, with a high of 78°F26°C. Breezy from the SSW at 11 to 12 mph18 to 19 km/h. Heavy, humid air. Friday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the SSW at 12 mph19 km/h. 17% chance of drizzle overnight.
Drizzle	High 78°F26°C	Low 77°F25°C	Precip 0.04 in1.1 mm20%	Cloud 62%	Wind SSW 14 mph22 km/h	Saturday: Mostly cloudy and warm, with a high of 78°F26°C. Breezy from the SSW at 14 mph22 km/h. 15% chance of drizzle throughout the day. Heavy, humid air. Saturday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the SW at 14 mph22 km/h. 20% chance of drizzle throughout the night.
Drizzle	High 78°F26°C	Low 77°F25°C	Precip 0.06 in1.4 mm38%	Cloud 64%	Wind SW 14 mph23 km/h	Sunday: Mostly cloudy and warm, with a high of 78°F26°C. Breezy from the SW at 14 to 15 mph23 to 25 km/h. 27% chance of drizzle throughout the day. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the SW at 15 mph24 km/h. 38% chance of drizzle throughout the night.
Drizzle	High 78°F26°C	Low 77°F25°C	Precip 0.04 in0.9 mm24%	Cloud 67%	Wind SW 15 mph24 km/h	Monday: Mostly cloudy and warm, with a high of 78°F26°C. Windy from the SW at 15 to 16 mph24 to 25 km/h. 22% chance of drizzle in the morning. Heavy, humid air. Monday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the SW at 15 to 16 mph24 to 25 km/h. 24% chance of drizzle overnight.
Partly Cloudy	High 78°F25°C	Low 77°F25°C	Precip 0.03 in0.7 mm9%	Cloud 62%	Wind SW 12 mph20 km/h	Tuesday: Mostly cloudy and warm, with a high of 78°F25°C. Breezy from the SW at 12 to 14 mph19 to 22 km/h. Heavy, humid air. Tuesday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the SW at 12 to 14 mph20 to 22 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	78°F25°C	76°F25°C	0.01 in0.3 mm· 2%	75%	Partly Cloudy	S 12 mph20 km/h
DayOvercast and warm, with a high of 78°F25°C. Breezy from the S at 13 mph20 km/h. Heavy, humid air. NightMostly cloudy, with a low around 76°F25°C. Breezy from the S at 12 to 13 mph20 to 20 km/h.
	ThursdaySep 24	78°F26°C	77°F25°C	0.01 in0.3 mm· 3%	50%	Partly Cloudy	S 11 mph17 km/h
DayMostly cloudy and warm, with a high of 78°F26°C. Breezy from the S at 11 mph17 km/h. Heavy, humid air. NightPartly cloudy, with a low around 77°F25°C. Breezy from the SSW at 11 to 12 mph17 to 19 km/h.
	FridaySep 25	78°F26°C	77°F25°C	0.02 in0.6 mm· 17%	52%	Drizzle	SSW 12 mph19 km/h
DayMostly cloudy and warm, with a high of 78°F26°C. Breezy from the SSW at 11 to 12 mph18 to 19 km/h. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SSW at 12 mph19 km/h. 17% chance of drizzle overnight.
	SaturdaySep 26	78°F26°C	77°F25°C	0.04 in1.1 mm· 20%	62%	Drizzle	SSW 14 mph22 km/h
DayMostly cloudy and warm, with a high of 78°F26°C. Breezy from the SSW at 14 mph22 km/h. 15% chance of drizzle throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SW at 14 mph22 km/h. 20% chance of drizzle throughout the night.
	SundaySep 27	78°F26°C	77°F25°C	0.06 in1.4 mm· 38%	64%	Drizzle	SW 14 mph23 km/h
DayMostly cloudy and warm, with a high of 78°F26°C. Breezy from the SW at 14 to 15 mph23 to 25 km/h. 27% chance of drizzle throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SW at 15 mph24 km/h. 38% chance of drizzle throughout the night.
	MondaySep 28	78°F26°C	77°F25°C	0.04 in0.9 mm· 24%	67%	Drizzle	SW 15 mph24 km/h
DayMostly cloudy and warm, with a high of 78°F26°C. Windy from the SW at 15 to 16 mph24 to 25 km/h. 22% chance of drizzle in the morning. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SW at 15 to 16 mph24 to 25 km/h. 24% chance of drizzle overnight.
	TuesdaySep 29	78°F25°C	77°F25°C	0.03 in0.7 mm· 9%	62%	Partly Cloudy	SW 12 mph20 km/h
DayMostly cloudy and warm, with a high of 78°F25°C. Breezy from the SW at 12 to 14 mph19 to 22 km/h. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SW at 12 to 14 mph20 to 22 km/h.
	WednesdaySep 30	78°F25°C	77°F25°C	0.02 in0.6 mm· 11%	61%	Drizzle	SW 11 mph18 km/h
DayMostly cloudy and warm, with a high of 78°F25°C. Breezy from the SW at 10 to 11 mph17 to 18 km/h. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SW at 11 to 12 mph18 to 19 km/h. 11% chance of drizzle overnight.
	ThursdayOct 1	78°F26°C	77°F25°C	0.02 in0.6 mm· 8%	63%	Partly Cloudy	SW 10 mph16 km/h
DayMostly cloudy and warm, with a high of 78°F26°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SW at 10 to 11 mph16 to 18 km/h.
	FridayOct 2	78°F26°C	77°F25°C	0.04 in1.1 mm· 28%	66%	Drizzle	SW 10 mph16 km/h
DayMostly cloudy and warm, with a high of 78°F26°C. Breezy from the SW at 10 to 11 mph16 to 17 km/h. 28% chance of drizzle throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SW at 10 to 11 mph17 to 18 km/h. 16% chance of drizzle throughout the night.
	SaturdayOct 3	79°F26°C	78°F25°C	0.08 in2.1 mm· 42%	68%	Drizzle	SSW 12 mph19 km/h
DayMostly cloudy and warm, with a high of 79°F26°C. Breezy from the SSW at 12 mph19 km/h. 42% chance of drizzle throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 78°F25°C. Breezy from the SSW at 12 mph19 km/h. 40% chance of drizzle throughout the night.
	SundayOct 4	79°F26°C	78°F25°C	0.12 in3 mm· 48%	67%	Drizzle	SSW 11 mph18 km/h
DayMostly cloudy and warm, with a high of 79°F26°C. Breezy from the SSW at 11 to 12 mph18 to 19 km/h. 48% chance of drizzle throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 78°F25°C. Breezy from the SSW at 11 to 12 mph18 to 19 km/h. 39% chance of drizzle throughout the night.
	MondayOct 5	79°F26°C	78°F25°C	0.15 in3.9 mm· 49%	71%	Light Rain	SSW 11 mph18 km/h
DayMostly cloudy and warm, with a high of 79°F26°C. Breezy from the SSW at 11 mph17 km/h. 49% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 78°F25°C. Breezy from the SW at 11 to 12 mph18 to 19 km/h. 49% chance of drizzle throughout the night.
	TuesdayOct 6	78°F26°C	78°F25°C	0.25 in6.4 mm· 61%	73%	Light Rain	SW 11 mph18 km/h
DayMostly cloudy and warm, with a high of 78°F26°C. Breezy from the SW at 11 mph17 km/h. 61% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 78°F25°C. Breezy from the SW at 11 mph18 km/h. 53% chance of light rain throughout the night.
	WednesdayOct 7	79°F26°C	78°F25°C	0.27 in6.8 mm· 68%	77%	Light Rain	SSW 11 mph18 km/h
DayMostly cloudy and warm, with a high of 78°F26°C. Breezy from the SSW at 11 mph17 km/h. 66% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 78°F25°C. Breezy from the SSW at 11 to 12 mph18 to 19 km/h. 68% chance of light rain throughout the night.

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