September weather forecast
Vero Beach, FL

September, the first month of the autumn in Vero Beach, is also a moderately hot month, with an average temperature fluctuating between 85.5°F (29.7°C) and 77.4°F (25.2°C).

Temperature

Vero Beach records an average high-temperature of a warm 85.5°F (29.7°C) in September, closely mirroring the climate of the previous month. The nights of September are characterized by an average low-temperature of 77.4°F (25.2°C), subtly descending from daytime highs.

Heat index

The heat index for September is calculated to be a sweltering 96.8°F (36°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Vero Beach, during September, the rain falls for 19.6 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Vero Beach, during the entire year, the rain falls for 153.2 days and collects up to 13.15" (334mm) of precipitation.

Daylight

In September, the average length of the day in Vero Beach is 12h and 19min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:08 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.