April weather forecast
São Paulo, Brazil

April is typically a pleasant month in São Paulo, as the city enters its autumn season. While the decline in rainfall continues, decreasing to an average of 73mm (2.87") over seven days, temperature fluctuations become more noticeable. Cooler nights offer respite from days that reach highs of 25.1°C (77.2°F), while the daylight period shortens to 11.5 hours. The casual coolness and less frequent rainfall combine to make April a popular month for outdoor activities.

Temperature

São Paulo transitions into April recording an average high-temperature of a still moderately hot 25.1°C (77.2°F), closely aligning with the preceding month's temperature. In São Paulo, the average nighttime temperature during April is a refreshing 16.3°C (61.3°F).

Humidity

The months with the highest humidity in São Paulo, Brazil, are January, March, April and December, with an average relative humidity of 80%.

Rainfall

In São Paulo, during April, the rain falls for 7 days and regularly aggregates up to 73mm (2.87") of precipitation. In São Paulo, during the entire year, the rain falls for 107 days and collects up to 1441mm (56.73") of precipitation.

Daylight

In April, the average length of the day is 11h and 32min.
On the first day of April in São Paulo, sunrise is at 06:15 and sunset at 18:05. On the last day of the month, sunrise is at 06:26 and sunset at 17:40 -03.

Sunshine

The average sunshine in April is 5.5h.

UV index

The average daily maximum UV index in April is 9. A UV Index reading of 8 to 10 represents a very high threat to health from exposure to the Sun's UV rays for the average person.
Note: In April, a daily maximum UV index of 9 leads to the following instructions:
Refrain from exposing skin and eyes. Without protection, they can get damaged rapidly. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.