Live Weather & Forecast
Weather in Altair
São Paulo, Brazil · Real-time conditions & 3-day outlook
27°C
Feels like 28°C
81°F / Feels 82°F
Sunny
Altair, São Paulo
🌞 Daytime
Updated: 2026-04-23 11:30
Humidity
49%
Wind
10.1 km/h E
Wind Gust
11.6 km/h
Pressure
1016 mb
Visibility
10 km
UV Index
8.1
(Very High)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
15.9°C
Wind Degree
83°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
122.9 μg/m³
NO₂
1 μg/m³
O₃
105 μg/m³
SO₂
1.3 μg/m³
PM 2.5
7 μg/m³
PM 10
7 μg/m³
Today's Hourly Forecast
24-hour breakdown for Altair, São Paulo
12 AM
20°
Clear
1 AM
20°
Clear
2 AM
19°
Clear
3 AM
19°
Clear
4 AM
18°
Clear
5 AM
18°
Clear
6 AM
16°
Clear
7 AM
17°
Sunny
8 AM
20°
Sunny
9 AM
23°
Sunny
10 AM
26°
Sunny
11 AM
27°
Sunny
12 PM
29°
Sunny
1 PM
30°
Sunny
2 PM
31°
Sunny
3 PM
31°
Sunny
4 PM
31°
Sunny
5 PM
29°
Sunny
6 PM
25°
Clear
7 PM
23°
Clear
8 PM
23°
Clear
9 PM
23°
Partly Cloudy
10 PM
23°
Partly Cloudy
11 PM
22°
Clear
3-Day Forecast
Daily overview for Altair, São Paulo
Today
Sunny
31°
/
16°
🌧️ 0% chance of rain
💧 Avg. humidity: 58%
💨 Max wind: 12.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 9.4
🌅 Sunrise: 06:30 AM
🌇 Sunset: 05:58 PM
🌙 Waxing Crescent
🌑 Moon: 38% lit
Fri, Apr 24
Sunny
30°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 58%
💨 Max wind: 15.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 9.5
🌅 Sunrise: 06:30 AM
🌇 Sunset: 05:57 PM
🌙 First Quarter
🌑 Moon: 49% lit
Sat, Apr 25
Sunny
32°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 53%
💨 Max wind: 13.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 9.5
🌅 Sunrise: 06:30 AM
🌇 Sunset: 05:57 PM
🌙 Waxing Gibbous
🌑 Moon: 60% lit
Best Time to Visit Altair
Plan your trip to Altair, 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 Altair?
Current conditions in Altair: Sunny, temperature 27°C, humidity 49%.
What is the best time to visit Altair?
The best time to visit Altair is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in Altair?
Altair is located at approximately -20.5° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in Altair?
The wettest period in Altair is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to Altair?
For visits to Altair during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What are the public holidays in Altair in 2026?
View the 2026 public holidays for Altair on our Holidays page.
What are the GPS coordinates used for the weather forecast in Altair?
The weather forecast for Altair uses coordinates -20.5239, -49.0606.
What is the current temperature outside in Altair?
The current outdoor temperature in Altair is 27°C (81°F) with sunny.
What is the hourly weather forecast for Altair today?
Today's hour-by-hour weather breakdown for Altair 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 Altair tomorrow hour by hour?
Tomorrow's forecast for Altair shows a high of 30°C and a low of 20°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Altair?
Rain is not expected in Altair today. Current forecast shows no significant rain probability.
Is it going to rain today in Altair?
No, rain is not forecast for Altair today. Current conditions show clear to partly cloudy skies.