Live Weather & Forecast
Weather in São Luís do Piauí
Piauí, Brazil · Real-time conditions & 3-day outlook
29°C
Feels like 31°C
84°F / Feels 87°F
Partly Cloudy
São Luís do Piauí, Piauí
🌞 Daytime
Updated: 2026-04-21 15:00
Humidity
56%
Wind
7.2 km/h E
Wind Gust
10.6 km/h
Pressure
1009 mb
Visibility
10 km
UV Index
2.3
(Low)
Precipitation
0 mm
Cloud Cover
27%
Dew Point
19.4°C
Wind Degree
90°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
101.8 μg/m³
NO₂
1.6 μg/m³
O₃
53 μg/m³
SO₂
0.9 μg/m³
PM 2.5
3.5 μg/m³
PM 10
3.7 μg/m³
Today's Hourly Forecast
24-hour breakdown for São Luís do Piauí, Piauí
12 AM
20°
Light rain shower
1 AM
20°
Light rain shower
2 AM
20°
Patchy rain nearby
3 AM
20°
Patchy rain nearby
4 AM
20°
Light rain shower
5 AM
20°
Mist
6 AM
19°
Partly Cloudy
7 AM
22°
Partly Cloudy
8 AM
25°
Partly Cloudy
9 AM
27°
Sunny
10 AM
29°
Partly Cloudy
11 AM
31°
Partly Cloudy
12 PM
32°
Partly Cloudy
1 PM
32°
Partly Cloudy
2 PM
30°
Partly Cloudy
3 PM
29°
Partly Cloudy
4 PM
29°
Partly Cloudy
5 PM
27°
Partly Cloudy
6 PM
25°
Partly Cloudy
7 PM
24°
Partly Cloudy
8 PM
23°
Partly Cloudy
9 PM
22°
Partly Cloudy
10 PM
22°
Partly Cloudy
11 PM
21°
Clear
3-Day Forecast
Daily overview for São Luís do Piauí, Piauí
Today
Patchy rain nearby
32°
/
19°
🌧️ 86% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 9 km/h
🌧️ Total precip: 3.79 mm
☀️ UV Index: 11.2
🌅 Sunrise: 05:46 AM
🌇 Sunset: 05:42 PM
🌙 Waxing Crescent
🌑 Moon: 17% lit
Wed, Apr 22
Moderate rain
27°
/
19°
🌧️ 90% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 8.6 km/h
🌧️ Total precip: 10.86 mm
☀️ UV Index: 11.5
🌅 Sunrise: 05:46 AM
🌇 Sunset: 05:42 PM
🌙 Waxing Crescent
🌑 Moon: 27% lit
Thu, Apr 23
Patchy rain nearby
31°
/
19°
🌧️ 86% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 14.8 km/h
🌧️ Total precip: 0.7 mm
☀️ UV Index: 11.4
🌅 Sunrise: 05:46 AM
🌇 Sunset: 05:41 PM
🌙 Waxing Crescent
🌑 Moon: 38% lit
Best Time to Visit São Luís do Piauí
Plan your trip to São Luís do Piauí, 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 do Piauí?
Current conditions in São Luís do Piauí: Partly Cloudy, temperature 29°C, humidity 56%.
What is the best time to visit São Luís do Piauí?
The best time to visit São Luís do Piauí is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in São Luís do Piauí?
São Luís do Piauí is located at approximately -6.8° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in São Luís do Piauí?
The wettest period in São Luís do Piauí is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to São Luís do Piauí?
For visits to São Luís do Piauí during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What country is São Luís do Piauí in?
What are the public holidays in São Luís do Piauí in 2026?
View the 2026 public holidays for São Luís do Piauí on our Holidays page.
What are the GPS coordinates used for the weather forecast in São Luís do Piauí?
The weather forecast for São Luís do Piauí uses coordinates -6.8263, -41.3232.
What is the current temperature outside in São Luís do Piauí?
The current outdoor temperature in São Luís do Piauí is 29°C (84°F) with partly cloudy.
What is the hourly weather forecast for São Luís do Piauí today?
Today's hour-by-hour weather breakdown for São Luís do Piauí 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 do Piauí tomorrow hour by hour?
Tomorrow's forecast for São Luís do Piauí shows a high of 27°C and a low of 19°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in São Luís do Piauí?
There is a 86% chance of rain in São Luís do Piauí 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 do Piauí?
Yes, there is a 86% chance of rain in São Luís do Piauí today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.