September weather forecast
La Crosse, FL

The first month of the autumn, September, is still a hot month in La Crosse, Florida, with an average temperature varying between 72°F (22.2°C) and 87.3°F (30.7°C).

Temperature

The onset of September brings an average high-temperature of a still tropical 87.3°F (30.7°C), nearly matching the August temperature. The nighttime temperature in La Crosse, Florida, dips to an agreeable 72°F (22.2°C) on average during September.

Heat index

The heat index in September is appraised at a very hot 102.2°F (39°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The months with the highest humidity in La Crosse are August and September, with an average relative humidity of 78%.

Rainfall

In La Crosse, in September, it is raining for 22.5 days, with typically 3.23" (82mm) of accumulated precipitation. Throughout the year, in La Crosse, there are 196.8 rainfall days, and 35.71" (907mm) of precipitation is accumulated.

Daylight

The average length of the day in September in La Crosse is 12h and 20min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:15 pm EDT.

Sunshine

The average sunshine in September in La Crosse is 8.5h.

UV index

The average daily maximum UV index in September in La Crosse is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.