September Weather in Toa Alta

Last updated: March 2, 2024

The weather in Toa Alta, Puerto Rico, during September is characterized by an average temperature of 28°C (82°F). Highs can soar to 32°C (89°F), while lows may dip to 25°C (77°F). Typically, the humidity level in Toa Alta throughout September hovers around 79%.

25°C (77°F)

Minimum temperature

28°C (82°F)

Average temperature

32°C (89°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In September, Toa Alta averages 172 mm (6.8 inches) of rainfall, typically over the course of 23 rainy days. The month enjoys an average of 12 hours 12 minutes of daylight, with the sun shining for approximately 10 hours 21 minutes each day. Additionally, there is a 48% probability of sunny days during this period.

172 mm (6.8 inches)

Precipitation

23 rainy days

Rainy days

10 hours 21 minutes

Sunshine hours

48%

Chance of sun

UV Index

In September, the UV Index in Toa Alta reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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	1	2	5	9	12	13	13	10	7	4	2	1	0
Exposure	Low		Moderate	VeryHigh	Extreme			VeryHigh	High	Moderate	Low
Time to burn	45 min		30 min	15 min	10 min			15 min	25 min	30 min	45 min