September Weather in Castelo do Piaui

Last updated: March 2, 2024

The weather in Castelo do Piaui, Brazil, during September is characterized by an average temperature of 31°C (88°F). Highs can soar to 38°C (100°F), while lows may dip to 23°C (74°F). Typically, the humidity level in Castelo do Piaui throughout September hovers around 41%.

23°C (74°F)

Minimum temperature

31°C (88°F)

Average temperature

38°C (100°F)

Maximum temperature

41%

Humidity

Precipitation and Sunshine hours

In September, Castelo do Piaui averages 1 mm (0.0 inches) of rainfall, typically over the course of 0 rainy days. The month enjoys an average of 12 hours 3 minutes of daylight, with the sun shining for approximately 11 hours 30 minutes each day. Additionally, there is a 66% probability of sunny days during this period.

1 mm (0.0 inches)

Precipitation

0 rainy days

Rainy days

11 hours 30 minutes

Sunshine hours

66%

Chance of sun

UV Index

In September, the UV Index in Castelo do Piaui reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	2	4	7	11	13	13	11	8	4	2	1	0	0
Exposure	Low	Moderate	High	Extreme				VeryHigh	Moderate	Low
Time to burn	45 min	30 min	25 min	10 min				15 min	30 min	45 min