🇧🇷 Weather in São Luís
Map Overlays:
Hourly Forecast for São Luís
04:00
26°
32%
05:00
26°
25%
06:00
26°
23%
07:00
26°
24%
08:00
26°
66%
09:00
27°
18%
10:00
28°
21%
11:00
28°
20%
12:00
29°
17%
13:00
29°
13%
14:00
28°
14%
15:00
28°
8%
16:00
28°
8%
17:00
27°
8%
18:00
27°
9%
19:00
27°
10%
20:00
27°
11%
21:00
27°
12%
22:00
27°
12%
23:00
27°
12%
00:00
26°
13%
01:00
26°
15%
02:00
26°
20%
03:00
26°
22%
14-Day Forecast for São Luís
2026-07-10
Patchy rain nearby
29° /
25°
2026-07-11
Patchy rain nearby
29° /
26°
2026-07-12
Partly Cloudy
30° /
26°
2026-07-13
Patchy rain nearby
28° /
26°
2026-07-14
Patchy rain nearby
28° /
26°
2026-07-15
Patchy rain nearby
27° /
25°
2026-07-16
Patchy rain nearby
29° /
25°
Additional Forecasts for São Luís
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 105.0 μg/m³
O₃ (Ozone) 49.0 μg/m³
NO₂ (Nitrogen Dioxide) 1.4 μg/m³
SO₂ (Sulphur Dioxide) 0.7 μg/m³
PM2.5 (Fine particles) 5.8 μg/m³
PM10 (Coarse particles) 9.0 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Brazil
Weather in São Luís — FAQ
Answers refreshed each request based on current conditions in São Luís.
What is the weather like right now in São Luís?
Right now in São Luís, Brazil the temperature is 26.2°C (feels like 29.5°C), with patchy rain nearby. Relative humidity is 89% and wind is 21.2 km/h.
What is today's high and low temperature in São Luís?
Today's forecast high in São Luís is 29.2°C and the overnight low is 25.4°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in São Luís today?
The chance of precipitation in São Luís today is 62%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in São Luís differ from nearby cities?
Even short distances can change temperatures noticeably. São Luís's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.