Current Conditions

São Mateus do Maranhão, Maranhão

78°F26°C

Hot

Wind

NNE 7 mph12 km/h

Humidity

86%

Cloud Cover

51%

As of Wednesday, September 23, 2026 at 2:53 AM GMT-3

Today's Outlook

Day

Mostly cloudy and hot, with a high of 96°F36°C and morning low of 78°F25°C — feels like 104°F40°C. Breezy from the NE at 5 to 8 mph8 to 12 km/h. Heat risk in the afternoon.

Night

Partly cloudy, with a low around 78°F26°C. Breezy from the N at 8 to 10 mph13 to 15 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 96°F36°CFeels 103°F40°C	Low 78°F25°C	Precip 0 in0.1 mm2%	Cloud 50%	Wind NNE 6 mph10 km/h	Wednesday: Mostly cloudy and hot, with a high of 96°F36°C and morning low of 78°F25°C — feels like 104°F40°C. Breezy from the NE at 5 to 8 mph8 to 12 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the N at 8 to 10 mph13 to 15 km/h.
Hot	High 96°F36°CFeels 104°F40°C	Low 77°F25°C	Precip 0 in0 mm—	Cloud 35%	Wind NNE 7 mph12 km/h	Thursday: Mostly cloudy and hot, with a high of 96°F36°C and morning low of 77°F25°C — feels like 104°F40°C. Breezy from the NE at 7 to 9 mph11 to 14 km/h. Heat risk in the afternoon. Thursday Night: Mostly clear, with a low around 78°F25°C. Breezy from the NNE at 8 to 10 mph13 to 17 km/h.
Drizzle	High 96°F36°CFeels 104°F40°C	Low 78°F26°C	Precip 0.02 in0.4 mm28%	Cloud 49%	Wind NNE 7 mph12 km/h	Friday: Mostly cloudy and hot, with a high of 96°F36°C and morning low of 78°F26°C — feels like 104°F40°C. Breezy from the NE at 7 to 10 mph12 to 15 km/h. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the NNE at 8 to 9 mph12 to 15 km/h. 28% chance of drizzle in the evening.
Hot	High 97°F36°CFeels 104°F40°C	Low 77°F25°C	Precip 0 in0.1 mm2%	Cloud 48%	Wind NE 6 mph9 km/h	Saturday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 77°F25°C — feels like 104°F40°C. Breezy from the ENE at 6 to 8 mph9 to 13 km/h. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the NNE at 5 to 7 mph9 to 11 km/h.
Drizzle	High 97°F36°CFeels 104°F40°C	Low 78°F26°C	Precip 0.01 in0.3 mm20%	Cloud 44%	Wind NNE 6 mph10 km/h	Sunday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 78°F26°C — feels like 104°F40°C. Breezy from the NE at 5 to 8 mph9 to 12 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the N at 7 to 8 mph11 to 13 km/h. 20% chance of drizzle in the evening.
Hot	High 96°F35°CFeels 102°F39°C	Low 79°F26°C	Precip 0.01 in0.3 mm8%	Cloud 47%	Wind NE 7 mph11 km/h	Monday: Mostly cloudy and hot, with a high of 96°F35°C and morning low of 79°F26°C — feels like 102°F39°C. Breezy from the ENE at 6 to 9 mph10 to 14 km/h. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 79°F26°C. Breezy from the NNE at 7 to 9 mph11 to 15 km/h.
Hot	High 98°F36°CFeels 102°F39°C	Low 78°F25°C	Precip 0 in0.1 mm3%	Cloud 36%	Wind NE 6 mph10 km/h	Tuesday: Partly cloudy and hot, with a high of 98°F36°C and morning low of 78°F25°C. Breezy from the ENE at 6 to 8 mph9 to 12 km/h. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the NNE at 6 to 8 mph10 to 13 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	96°F36°C Feels 103°F40°C	78°F25°C	0 in0.1 mm· 2%	50%	Hot	NNE 6 mph10 km/h
DayMostly cloudy and hot, with a high of 96°F36°C and morning low of 78°F25°C — feels like 104°F40°C. Breezy from the NE at 5 to 8 mph8 to 12 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the N at 8 to 10 mph13 to 15 km/h.
	ThursdaySep 24	96°F36°C Feels 104°F40°C	77°F25°C	0 in0 mm· —	35%	Hot	NNE 7 mph12 km/h
DayMostly cloudy and hot, with a high of 96°F36°C and morning low of 77°F25°C — feels like 104°F40°C. Breezy from the NE at 7 to 9 mph11 to 14 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 78°F25°C. Breezy from the NNE at 8 to 10 mph13 to 17 km/h.
	FridaySep 25	96°F36°C Feels 104°F40°C	78°F26°C	0.02 in0.4 mm· 28%	49%	Drizzle	NNE 7 mph12 km/h
DayMostly cloudy and hot, with a high of 96°F36°C and morning low of 78°F26°C — feels like 104°F40°C. Breezy from the NE at 7 to 10 mph12 to 15 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the NNE at 8 to 9 mph12 to 15 km/h. 28% chance of drizzle in the evening.
	SaturdaySep 26	97°F36°C Feels 104°F40°C	77°F25°C	0 in0.1 mm· 2%	48%	Hot	NE 6 mph9 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 77°F25°C — feels like 104°F40°C. Breezy from the ENE at 6 to 8 mph9 to 13 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the NNE at 5 to 7 mph9 to 11 km/h.
	SundaySep 27	97°F36°C Feels 104°F40°C	78°F26°C	0.01 in0.3 mm· 20%	44%	Drizzle	NNE 6 mph10 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 78°F26°C — feels like 104°F40°C. Breezy from the NE at 5 to 8 mph9 to 12 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the N at 7 to 8 mph11 to 13 km/h. 20% chance of drizzle in the evening.
	MondaySep 28	96°F35°C Feels 102°F39°C	79°F26°C	0.01 in0.3 mm· 8%	47%	Hot	NE 7 mph11 km/h
DayMostly cloudy and hot, with a high of 96°F35°C and morning low of 79°F26°C — feels like 102°F39°C. Breezy from the ENE at 6 to 9 mph10 to 14 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 79°F26°C. Breezy from the NNE at 7 to 9 mph11 to 15 km/h.
	TuesdaySep 29	98°F36°C Feels 102°F39°C	78°F25°C	0 in0.1 mm· 3%	36%	Hot	NE 6 mph10 km/h
DayPartly cloudy and hot, with a high of 98°F36°C and morning low of 78°F25°C. Breezy from the ENE at 6 to 8 mph9 to 12 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the NNE at 6 to 8 mph10 to 13 km/h.
	WednesdaySep 30	99°F37°C Feels 103°F39°C	78°F25°C	0 in0 mm· —	32%	Hot	NE 7 mph11 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 78°F25°C. Breezy from the ENE at 6 to 8 mph10 to 13 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the NNE at 7 to 9 mph12 to 15 km/h.
	ThursdayOct 1	99°F37°C Feels 102°F39°C	78°F26°C	0 in0 mm· —	33%	Hot	NE 8 mph13 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 78°F26°C. Breezy from the ENE at 7 to 10 mph12 to 16 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 79°F26°C. Breezy from the NNE at 8 to 10 mph13 to 16 km/h.
	FridayOct 2	97°F36°C Feels 100°F38°C	79°F26°C	0 in0.1 mm· 2%	43%	Hot	NNE 8 mph12 km/h
DayMostly cloudy and hot, with a high of 97°F36°C and morning low of 79°F26°C. Breezy from the NE at 7 to 10 mph12 to 16 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 79°F26°C. Breezy from the NNE at 8 to 10 mph13 to 15 km/h.
	SaturdayOct 3	97°F36°C Feels 100°F38°C	78°F25°C	0 in0.1 mm· 4%	49%	Hot	NE 7 mph11 km/h
DayMostly cloudy and hot, with a high of 97°F36°C and morning low of 78°F25°C. Breezy from the ENE at 7 to 9 mph11 to 15 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the NNE at 7 to 9 mph11 to 14 km/h.
	SundayOct 4	97°F36°C Feels 100°F38°C	78°F26°C	0.01 in0.2 mm· 10%	51%	Drizzle	NE 7 mph11 km/h
DayMostly cloudy and hot, with a high of 97°F36°C and morning low of 78°F26°C. Breezy from the ENE at 7 to 9 mph11 to 14 km/h. 10% chance of drizzle. Heat risk in the afternoon. NightPartly cloudy, with a low around 79°F26°C. Breezy from the NNE at 7 to 9 mph11 to 15 km/h.
	MondayOct 5	98°F37°C	78°F25°C	0 in0 mm· —	34%	Hot	NE 7 mph11 km/h
DayPartly cloudy and hot, with a high of 98°F37°C and morning low of 78°F25°C. Breezy from the ENE at 7 to 8 mph11 to 14 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 79°F26°C. Breezy from the NNE at 7 to 9 mph11 to 15 km/h.
	TuesdayOct 6	99°F37°C	77°F25°C	0 in0 mm· —	24%	Hot	NE 7 mph11 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 77°F25°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 78°F26°C. Breezy from the NNE at 7 to 9 mph11 to 15 km/h.
	WednesdayOct 7	99°F37°C	78°F25°C	0 in0 mm· —	22%	Hot	NE 7 mph11 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 78°F25°C. Breezy from the E at 7 to 8 mph11 to 13 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 78°F26°C. Breezy from the NNE at 7 to 9 mph11 to 15 km/h.

Nearby Cities

Alto Alegre do Maranhão12 mi19 km Bacabal25 mi40 km Coroatá25 mi40 km Peritoró26 mi41 km São Luís Gonzaga do Maranhão27 mi43 km Pirapemas28 mi45 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: 4.0417°S, 44.4750°W·Elevation: 47m·Timezone: America/Fortaleza·Population: 38,829