September weather forecast
Rochelle, FL

The first month of the autumn, September, is still a tropical month in Rochelle, Florida, with an average temperature varying between 72.3°F (22.4°C) and 88°F (31.1°C).

Temperature

Rochelle starts September with an average high-temperature of a still hot 88°F (31.1°C), a minor shift from August's 90.9°F (32.7°C). Rochelle observes an average nighttime temperature of 72.3°F (22.4°C) during September.

Heat index

Throughout September, the heat index is evaluated at a blistering 105.8°F (41°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

July through September, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Rochelle, during September, the rain falls for 19.7 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Rochelle, during the entire year, the rain falls for 181.1 days and collects up to 29.09" (739mm) of precipitation.

Daylight

In Rochelle, Florida, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:06 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:15 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Rochelle, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.