Barometric Pressure in Rio de Janeiro, Brazil 
1013.6 hPa
24.2 ℃
81%
4.25 m/s
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The average pressure in Rio de Janeiro, Brazil today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at times, worse later
The daily total fluctuation in pressure in Rio de Janeiro is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Rio de Janeiro hour by hour across the next 6 hourly readings.
The barometric pressure in Rio de Janeiro is usually around 1013 millibars. This is near the global average. It rarely drops below 1007 millibars. Occasionally, it rises above 1019 millibars.
Rio de Janeiro is surrounded by mountains and sea. The mountains are to the north and west. The sea is to the south and east. The city's shape affects the air movement. It creates a tunnel effect for winds from the ocean. These winds bring moisture and heat. The mountains block cold air from the interior.
The prevailing winds are from the southeast. They carry warm, humid air from the ocean. The winds make the climate warm and humid. The humidity is highest near the coast.