Live Weather & Forecast
Weather in São Luís
Maranhão, Brazil · Real-time conditions & 3-day outlook
25°C
Feels like 28°C
77°F / Feels 82°F
Partly cloudy
São Luís, Maranhão
🌞 Daytime
Updated: 2026-04-21 07:45
Humidity
100%
Wind
6.1 km/h SSE
Wind Gust
9.8 km/h
Pressure
1011 mb
Visibility
10 km
UV Index
0.1
(Low)
Precipitation
0.04 mm
Cloud Cover
75%
Dew Point
22.5°C
Wind Degree
149°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
149.9 μg/m³
NO₂
2.3 μg/m³
O₃
52 μg/m³
SO₂
2.6 μg/m³
PM 2.5
3.5 μg/m³
PM 10
4.3 μg/m³
Today's Hourly Forecast
24-hour breakdown for São Luís, Maranhão
12 AM
26°
Patchy rain nearby
1 AM
26°
Light rain shower
2 AM
25°
Light rain shower
3 AM
25°
Light rain shower
4 AM
25°
Light rain shower
5 AM
25°
Light rain shower
6 AM
25°
Light rain shower
7 AM
25°
Partly cloudy
8 AM
25°
Patchy rain nearby
9 AM
25°
Patchy rain nearby
10 AM
25°
Patchy light drizzle
11 AM
26°
Light rain shower
12 PM
26°
Patchy rain nearby
1 PM
26°
Patchy rain nearby
2 PM
27°
Patchy rain nearby
3 PM
27°
Light rain shower
4 PM
27°
Light rain shower
5 PM
27°
Light rain shower
6 PM
26°
Light rain shower
7 PM
26°
Patchy rain nearby
8 PM
26°
Patchy rain nearby
9 PM
26°
Patchy rain nearby
10 PM
25°
Light rain shower
11 PM
25°
Light rain shower
3-Day Forecast
Daily overview for São Luís, Maranhão
Today
Moderate rain
27°
/
25°
🌧️ 97% chance of rain
💧 Avg. humidity: 83%
💨 Max wind: 12.2 km/h
🌧️ Total precip: 9.7 mm
☀️ UV Index: 3.2
🌅 Sunrise: 05:55 AM
🌇 Sunset: 05:57 PM
🌙 Waxing Crescent
🌑 Moon: 17% lit
Wed, Apr 22
Heavy rain
26°
/
23°
🌧️ 89% chance of rain
💧 Avg. humidity: 87%
💨 Max wind: 23 km/h
🌧️ Total precip: 28.51 mm
☀️ UV Index: 12
🌅 Sunrise: 05:55 AM
🌇 Sunset: 05:57 PM
🌙 Waxing Crescent
🌑 Moon: 27% lit
Thu, Apr 23
Patchy rain nearby
29°
/
24°
🌧️ 88% chance of rain
💧 Avg. humidity: 84%
💨 Max wind: 20.5 km/h
🌧️ Total precip: 2.74 mm
☀️ UV Index: 12.2
🌅 Sunrise: 05:54 AM
🌇 Sunset: 05:57 PM
🌙 Waxing Crescent
🌑 Moon: 38% lit
Best Time to Visit São Luís
Plan your trip to São Luís, Brazil around the most favorable weather conditions.
Peak Season
November – April
Dry season — low humidity, clear skies, comfortable temperatures.
Shoulder Season
May, October
Fewer crowds, moderate prices, mild weather.
Off Season
June – September
Wet/monsoon season; heavier rainfall possible.
Frequently Asked Questions
What is the current weather in São Luís?
Current conditions in São Luís: Partly cloudy, temperature 25°C, humidity 100%.
What is the best time to visit São Luís?
The best time to visit São Luís is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in São Luís?
São Luís is located at approximately -2.5° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in São Luís?
The wettest period in São Luís is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to São Luís?
For visits to São Luís during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What are the public holidays in São Luís in 2026?
View the 2026 public holidays for São Luís on our Holidays page.
What are the GPS coordinates used for the weather forecast in São Luís?
The weather forecast for São Luís uses coordinates -2.5295, -44.2964.
What is the current temperature outside in São Luís?
The current outdoor temperature in São Luís is 25°C (77°F) with partly cloudy.
What is the hourly weather forecast for São Luís today?
Today's hour-by-hour weather breakdown for São Luís is shown in the Hourly Forecast section above, including temperature, rain chance, and conditions for each hour of the day.
What is the weather in São Luís tomorrow hour by hour?
Tomorrow's forecast for São Luís shows a high of 26°C and a low of 23°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in São Luís?
There is a 97% chance of rain in São Luís today. Check the hourly forecast above for a time-by-time breakdown of when rain is most likely.
Is it going to rain today in São Luís?
Yes, there is a 97% chance of rain in São Luís today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.