September weather forecast
Geneva, FL

September, the first month of the autumn in Geneva, is also a hot month, with an average temperature varying between 75°F (23.9°C) and 88°F (31.1°C).

Temperature

September's presence marks an average high-temperature of a still hot 88°F (31.1°C), subtly varied from August's 91.2°F (32.9°C). Geneva experiences a consistent average temperature of 75°F (23.9°C) throughout the nights in September.

Heat index

September's average heat index is appraised at a blisteringly hot 104°F (40°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The months with the highest humidity are June through September and December, with an average relative humidity of 77%.

Rainfall

In September, the rain falls for 17.6 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. Throughout the year, in Geneva, there are 157.7 rainfall days, and 20.35" (517mm) of precipitation is accumulated.

Daylight

In Geneva, the average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:02 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:11 pm EDT.

Sunshine

In Geneva, the average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.