Live Weather & Forecast
Weather in São João da Serra
Piauí, Brazil · Real-time conditions & 3-day outlook
25°C
Feels like 28°C
77°F / Feels 82°F
Patchy rain nearby
São João da Serra, Piauí
🌞 Daytime
Updated: 2026-04-21 11:30
Humidity
89%
Wind
5 km/h WNW
Wind Gust
7 km/h
Pressure
1013 mb
Visibility
9 km
UV Index
3.3
(Moderate)
Precipitation
0.4 mm
Cloud Cover
70%
Dew Point
22.9°C
Wind Degree
283°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
110.9 μg/m³
NO₂
1.5 μg/m³
O₃
63 μg/m³
SO₂
0.9 μg/m³
PM 2.5
3.7 μg/m³
PM 10
3.9 μg/m³
Today's Hourly Forecast
24-hour breakdown for São João da Serra, Piauí
12 AM
23°
Patchy rain nearby
1 AM
22°
Patchy rain nearby
2 AM
22°
Patchy rain nearby
3 AM
22°
Patchy rain nearby
4 AM
22°
Light rain shower
5 AM
22°
Patchy light drizzle
6 AM
22°
Light rain shower
7 AM
23°
Patchy rain nearby
8 AM
24°
Light rain shower
9 AM
24°
Patchy rain nearby
10 AM
24°
Patchy rain nearby
11 AM
25°
Patchy rain nearby
12 PM
26°
Light rain shower
1 PM
27°
Light rain shower
2 PM
27°
Patchy rain nearby
3 PM
27°
Light rain shower
4 PM
27°
Light rain shower
5 PM
25°
Cloudy
6 PM
24°
Patchy rain nearby
7 PM
23°
Patchy rain nearby
8 PM
23°
Partly Cloudy
9 PM
23°
Partly Cloudy
10 PM
23°
Mist
11 PM
23°
Mist
3-Day Forecast
Daily overview for São João da Serra, Piauí
Today
Moderate rain
27°
/
22°
🌧️ 87% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 7.2 km/h
🌧️ Total precip: 10.19 mm
☀️ UV Index: 6.3
🌅 Sunrise: 05:49 AM
🌇 Sunset: 05:46 PM
🌙 Waxing Crescent
🌑 Moon: 17% lit
Wed, Apr 22
Patchy rain nearby
30°
/
22°
🌧️ 89% chance of rain
💧 Avg. humidity: 88%
💨 Max wind: 5.8 km/h
🌧️ Total precip: 4.3 mm
☀️ UV Index: 10.3
🌅 Sunrise: 05:48 AM
🌇 Sunset: 05:45 PM
🌙 Waxing Crescent
🌑 Moon: 27% lit
Thu, Apr 23
Patchy rain nearby
31°
/
21°
🌧️ 89% chance of rain
💧 Avg. humidity: 81%
💨 Max wind: 9.4 km/h
🌧️ Total precip: 0.64 mm
☀️ UV Index: 11.6
🌅 Sunrise: 05:48 AM
🌇 Sunset: 05:45 PM
🌙 Waxing Crescent
🌑 Moon: 38% lit
Best Time to Visit São João da Serra
Plan your trip to São João da Serra, 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 João da Serra?
Current conditions in São João da Serra: Patchy rain nearby, temperature 25°C, humidity 89%.
What is the best time to visit São João da Serra?
The best time to visit São João da Serra is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in São João da Serra?
São João da Serra is located at approximately -5.5° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in São João da Serra?
The wettest period in São João da Serra is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to São João da Serra?
For visits to São João da Serra during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What country is São João da Serra in?
What are the public holidays in São João da Serra in 2026?
View the 2026 public holidays for São João da Serra on our Holidays page.
What are the GPS coordinates used for the weather forecast in São João da Serra?
The weather forecast for São João da Serra uses coordinates -5.5164, -41.8967.
What is the current temperature outside in São João da Serra?
The current outdoor temperature in São João da Serra is 25°C (77°F) with patchy rain nearby.
What is the hourly weather forecast for São João da Serra today?
Today's hour-by-hour weather breakdown for São João da Serra 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 João da Serra tomorrow hour by hour?
Tomorrow's forecast for São João da Serra shows a high of 30°C and a low of 22°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in São João da Serra?
There is a 87% chance of rain in São João da Serra 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 João da Serra?
Yes, there is a 87% chance of rain in São João da Serra today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.