Cities / Brazil / Piauí

31°

☀️ São Luís weather

Clear sky. No rain expected in the next few hours.

Feels like 31° Wind 4 km/h E Humidity 31% UV 0 Air Fair 05:53 - 17:52

Right now it is 31° in São Luís with clear skies and today's high is 38° with an overnight low of 24°. The sun rises at 05:53 and sets at 17:52, giving 11h 59m of daylight. Over the coming week highs range from 38° to 40° - a steady stretch with little day-to-day change.

São Luís is in Piauí, Brazil, sitting 319 m above sea level. Local time is America/Fortaleza (UTC−3), and every time on this page is shown in it.

Next 24 hours - temperature

24° 33° 41° 40° 24° 18:00 · 32.1° · 0 mm 19:00 · 30.7° · 0 mm 20:00 · 30.1° · 0 mm 21:00 · 29.9° · 0 mm 22:00 · 29° · 0 mm 23:00 · 29.2° · 0 mm 00:00 · 29.7° · 0 mm 01:00 · 27.4° · 0 mm 02:00 · 26.5° · 0 mm 03:00 · 26.6° · 0 mm 04:00 · 25.9° · 0 mm 05:00 · 24.7° · 0 mm 06:00 · 24.3° · 0 mm 07:00 · 26.9° · 0 mm 08:00 · 29.9° · 0 mm 09:00 · 32.1° · 0 mm 10:00 · 34.1° · 0 mm 11:00 · 35.8° · 0 mm 12:00 · 37.5° · 0 mm 13:00 · 39.1° · 0 mm 14:00 · 40.2° · 0 mm 15:00 · 40.2° · 0 mm 16:00 · 39.2° · 0 mm 17:00 · 37.8° · 0 mm

Precipitation

18:00 · 0 mm 18:00 19:00 · 0 mm 20:00 · 0 mm 21:00 · 0 mm 21:00 22:00 · 0 mm 23:00 · 0 mm 00:00 · 0 mm 00:00 01:00 · 0 mm 02:00 · 0 mm 03:00 · 0 mm 03:00 04:00 · 0 mm 05:00 · 0 mm 06:00 · 0 mm 06:00 07:00 · 0 mm 08:00 · 0 mm 09:00 · 0 mm 09:00 10:00 · 0 mm 11:00 · 0 mm 12:00 · 0 mm 12:00 13:00 · 0 mm 14:00 · 0 mm 15:00 · 0 mm 15:00 16:00 · 0 mm 17:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
18:00 ☀️ 32.1° 31.7° - Clear sky
19:00 ☀️ 30.7° 30.6° - Clear sky
20:00 ☀️ 30.1° 30° - Clear sky
21:00 🌤️ 29.9° 29.5° - Mostly clear
22:00 ☀️ 29° 28.2° - Clear sky
23:00 ☁️ 29.2° 28.5° - Overcast
00:00 ☁️ 29.7° 28° - Overcast
01:00 ☁️ 27.4° 26.3° - Overcast
02:00 26.5° 25.5° - Partly cloudy
03:00 ☁️ 26.6° 25.2° - Overcast
04:00 ☁️ 25.9° 24.4° - Overcast
05:00 ☁️ 24.7° 23.8° - Overcast

Next 16 days

☀️ TodaySeptember 1st Avg 30° Low 24° at 04:00 High 38° at 15:00 Feels 36° Wind ~17 km/h
Partly Cloudy Cloudy Clear
00:00 28°
02:00 25°
04:00 24°
06:00 25°
08:00 28°
10:00 32°
12:00 36°
14:00 37°
16:00 37°
18:00 32°
20:00 30°
22:00 29°
☀️ WednesdaySeptember 2nd Avg 32° Low 24° at 06:00 High 40° at 14:00 Wind ~14 km/h
Cloudy Clear
00:00 30°
02:00 27°
04:00 26°
06:00 24°
08:00 30°
10:00 34°
12:00 38°
14:00 40°
16:00 39°
18:00 33°
20:00 31°
22:00 30°
☀️ ThursdaySeptember 3rd Avg 32° Low 25° at 06:00 High 39° at 15:00 Feels 37° Wind ~21 km/h
Clear Clear
00:00 29°
02:00 27°
04:00 27°
06:00 25°
08:00 28°
10:00 34°
12:00 37°
14:00 39°
16:00 38°
18:00 33°
20:00 32°
22:00 34°
☀️ FridaySeptember 4th Avg 32° Low 26° at 06:00 High 38° at 15:00 Feels 36° Wind ~17 km/h
Cloudy Clear Cloudy Clear
00:00 32°
02:00 30°
04:00 28°
06:00 26°
08:00 29°
10:00 32°
12:00 36°
14:00 38°
16:00 37°
18:00 34°
20:00 31°
22:00 29°
☀️ SaturdaySeptember 5th Avg 31° Low 23° at 06:00 High 39° at 14:00 Feels 36° Wind ~19 km/h
Clear
00:00 27°
02:00 26°
04:00 25°
06:00 23°
08:00 29°
10:00 33°
12:00 37°
14:00 39°
16:00 38°
18:00 33°
20:00 30°
22:00 28°
☀️ SundaySeptember 6th Avg 31° Low 24° at 06:00 High 39° at 14:00 Wind ~13 km/h
Clear
00:00 30°
02:00 27°
04:00 25°
06:00 24°
08:00 28°
10:00 33°
12:00 37°
14:00 39°
16:00 38°
18:00 33°
20:00 30°
22:00 29°
☀️ MondaySeptember 7th Avg 32° Low 25° at 06:00 High 40° at 15:00 Feels 37° Wind ~15 km/h
Clear
00:00 28°
02:00 30°
04:00 28°
06:00 25°
08:00 28°
10:00 33°
12:00 37°
14:00 40°
16:00 38°
18:00 33°
20:00 30°
22:00 29°
☀️ TuesdaySeptember 8th Avg 32° Low 24° at 06:00 High 40° at 14:00 Wind ~15 km/h
Clear
00:00 29°
02:00 29°
04:00 28°
06:00 24°
08:00 28°
10:00 33°
12:00 38°
14:00 40°
16:00 38°
18:00 34°
20:00 31°
22:00 30°
WednesdaySeptember 9th Avg 31° Low 26° at 06:00 High 36° at 14:00 Feels 34° Wind ~23 km/h
Clear Partly Cloudy
00:00 28°
02:00 29°
04:00 28°
06:00 26°
08:00 29°
10:00 32°
12:00 35°
14:00 36°
16:00 35°
18:00 33°
20:00 32°
22:00 30°
☀️ ThursdaySeptember 10th Avg 29° Low 23° at 05:00 High 37° at 15:00 Feels 33° Wind ~26 km/h
Clear
00:00 28°
02:00 25°
04:00 23°
06:00 23°
08:00 26°
10:00 30°
12:00 34°
14:00 37°
16:00 36°
18:00 34°
20:00 28°
22:00 24°
☀️ FridaySeptember 11th Avg 27° Low 22° at 02:00 High 34° at 14:00 Feels 30° Wind ~26 km/h
Clear Partly Cloudy Clear
00:00 23°
02:00 22°
04:00 22°
06:00 23°
08:00 24°
10:00 27°
12:00 32°
14:00 34°
16:00 33°
18:00 30°
20:00 28°
22:00 26°
☀️ SaturdaySeptember 12th Avg 28° Low 22° at 05:00 High 35° at 15:00 Feels 32° Wind ~25 km/h
Clear
00:00 24°
02:00 23°
04:00 22°
06:00 22°
08:00 25°
10:00 29°
12:00 33°
14:00 35°
16:00 34°
18:00 32°
20:00 28°
22:00 26°
☀️ SundaySeptember 13th Avg 28° Low 22° at 05:00 High 37° at 14:00 Feels 34° Wind ~22 km/h
Clear
00:00 25°
02:00 24°
04:00 23°
06:00 22°
08:00 26°
10:00 30°
12:00 34°
14:00 37°
16:00 35°
18:00 31°
20:00 28°
22:00 26°
☀️ MondaySeptember 14th Avg 29° Low 23° at 05:00 High 38° at 14:00 Feels 36° Wind ~21 km/h
Clear Clear
00:00 25°
02:00 25°
04:00 24°
06:00 23°
08:00 27°
10:00 32°
12:00 36°
14:00 38°
16:00 36°
18:00 32°
20:00 29°
22:00 27°
TuesdaySeptember 15th Avg 31° Low 24° at 05:00 High 40° at 15:00 Feels 38° Wind ~19 km/h
Clear Partly Cloudy Clear
00:00 27°
02:00 25°
04:00 24°
06:00 24°
08:00 28°
10:00 32°
12:00 37°
14:00 40°
16:00 38°
18:00 33°
20:00 30°
22:00 29°
☀️ WednesdaySeptember 16th Avg 31° Low 23° at 05:00 High 40° at 15:00 Feels 37° Wind ~19 km/h
Clear
00:00 29°
02:00 26°
04:00 24°
06:00 23°
08:00 29°
10:00 34°
12:00 38°
14:00 40°
16:00 38°
18:00 35°
20:00 32°
22:00 30°

Sun

☀️ Sunrise 05:53 · Sunset 17:52

11h 59m of daylight · America/Fortaleza

Air quality

PM2.5 11.7 µg/m³ - Fair

Fine for almost everyone; unusually sensitive people may notice it on a long run.

Source: Copernicus CAMS, updated hourly.

Nearby

Tools for São Luís

Common questions about São Luís weather

Will it rain in São Luís today?

No rain is in the forecast for São Luís today.

What is the temperature in São Luís right now?

It is 31° in São Luís right now. Today runs between a low of 24° and a high of 38°.

What time is sunrise and sunset in São Luís?

The sun rises at 05:53 and sets at 17:52 local time in São Luís today, giving 11h 59m of daylight.

What is the air quality in São Luís?

PM2.5 in São Luís is currently 11.7 µg/m³, which counts as Fair on the European air-quality index. Fine for almost everyone; unusually sensitive people may notice it on a long run.

How accurate is the São Luís forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers São Luís best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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