Live Weather & Forecast
Weather in Santa Mercedes
São Paulo, Brazil · Real-time conditions & 3-day outlook
28°C
Feels like 27°C
82°F / Feels 81°F
Sunny
Santa Mercedes, São Paulo
🌞 Daytime
Updated: 2026-04-21 09:30
Humidity
33%
Wind
12.2 km/h E
Wind Gust
14.1 km/h
Pressure
1015 mb
Visibility
10 km
UV Index
5.1
(Moderate)
Precipitation
0 mm
Cloud Cover
3%
Dew Point
10.4°C
Wind Degree
85°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
116.9 μg/m³
NO₂
1.9 μg/m³
O₃
128 μg/m³
SO₂
3.3 μg/m³
PM 2.5
8.1 μg/m³
PM 10
8.2 μg/m³
Today's Hourly Forecast
24-hour breakdown for Santa Mercedes, São Paulo
12 AM
21°
Clear
1 AM
20°
Clear
2 AM
20°
Clear
3 AM
19°
Clear
4 AM
18°
Clear
5 AM
18°
Clear
6 AM
17°
Sunny
7 AM
21°
Sunny
8 AM
25°
Sunny
9 AM
28°
Sunny
10 AM
31°
Sunny
11 AM
33°
Sunny
12 PM
35°
Sunny
1 PM
36°
Sunny
2 PM
35°
Sunny
3 PM
35°
Sunny
4 PM
34°
Sunny
5 PM
29°
Sunny
6 PM
26°
Clear
7 PM
24°
Clear
8 PM
23°
Clear
9 PM
22°
Clear
10 PM
21°
Clear
11 PM
20°
Clear
3-Day Forecast
Daily overview for Santa Mercedes, São Paulo
Today
Sunny
36°
/
17°
🌧️ 0% chance of rain
💧 Avg. humidity: 42%
💨 Max wind: 13.7 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 9.3
🌅 Sunrise: 05:42 AM
🌇 Sunset: 05:11 PM
🌙 Waxing Crescent
🌑 Moon: 17% lit
Wed, Apr 22
Sunny
36°
/
18°
🌧️ 0% chance of rain
💧 Avg. humidity: 45%
💨 Max wind: 13.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 9.2
🌅 Sunrise: 05:42 AM
🌇 Sunset: 05:10 PM
🌙 Waxing Crescent
🌑 Moon: 27% lit
Thu, Apr 23
Sunny
36°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 46%
💨 Max wind: 16.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 9.2
🌅 Sunrise: 05:42 AM
🌇 Sunset: 05:09 PM
🌙 Waxing Crescent
🌑 Moon: 38% lit
Best Time to Visit Santa Mercedes
Plan your trip to Santa Mercedes, 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 Santa Mercedes?
Current conditions in Santa Mercedes: Sunny, temperature 28°C, humidity 33%.
What is the best time to visit Santa Mercedes?
The best time to visit Santa Mercedes is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in Santa Mercedes?
Santa Mercedes is located at approximately -21.4° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in Santa Mercedes?
The wettest period in Santa Mercedes is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to Santa Mercedes?
For visits to Santa Mercedes during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What are the public holidays in Santa Mercedes in 2026?
View the 2026 public holidays for Santa Mercedes on our Holidays page.
What are the GPS coordinates used for the weather forecast in Santa Mercedes?
The weather forecast for Santa Mercedes uses coordinates -21.3513, -51.7534.
What is the current temperature outside in Santa Mercedes?
The current outdoor temperature in Santa Mercedes is 28°C (82°F) with sunny.
What is the hourly weather forecast for Santa Mercedes today?
Today's hour-by-hour weather breakdown for Santa Mercedes 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 Santa Mercedes tomorrow hour by hour?
Tomorrow's forecast for Santa Mercedes shows a high of 36°C and a low of 18°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Santa Mercedes?
Rain is not expected in Santa Mercedes today. Current forecast shows no significant rain probability.
Is it going to rain today in Santa Mercedes?
No, rain is not forecast for Santa Mercedes today. Current conditions show clear to partly cloudy skies.