Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The advent of September denotes an average high-temperature of a still hot 87.3°F (30.7°C), subtly different from August's 90.3°F (32.4°C). Cedar Key's average low-temperature during September nights is observed to be an agreeable 72.9°F (22.7°C).Heat index
The heat index value during September is appraised at a sweltering 102.2°F (39°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Note that heat index values are valued for light wind and location in the shade. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The most humid month is September, with an average relative humidity of 77%.Rainfall
In Cedar Key, during September, the rain falls for 18.7 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Cedar Key, during the entire year, the rain falls for 154 days and collects up to 21.69" (551mm) of precipitation.Snowfall
In Cedar Key, snow does not fall in January through November.Ocean temperature
In Cedar Key, Florida, in September, the average water temperature is 83.8°F (28.8°C).Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.
Daylight
In September, the average length of the day is 12h and 19min.On the first day of the month, sunrise is at 7:10 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:18 pm EDT.
Sunshine
In Cedar Key, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be attentive! The UV exposure is heightened with reflections from sand and water.
Frequently asked questions
How hot is September in Cedar Key?
What is the most humid month in Cedar Key?
What is the average humidity in September in Cedar Key?
How much does it rain in Cedar Key in September?
When it does not snow in Cedar Key?
What is the water temperature in September in Cedar Key?
How many hours of daylight does Cedar Key have in September?
What time are sunrise and sunset in September in Cedar Key?
How many hours of sunshine does Cedar Key have in September?
How high is the UV index in September in Cedar Key?
Average temperature in September
Cedar Key, FL
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (64°F).
- Average low temperature in September: 72.9°F
The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).
Average pressure in September
Cedar Key, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Cedar Key, FL
- Average wind speed in September: 5.4mph
The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Cedar Key, FL
- Average humidity in September: 77%
The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is January (71%).
Average rainfall in September
Cedar Key, FL
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is November (0.83").
Average rainfall days in September
Cedar Key, FL
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is November (6.6 days).
Average snowfall days in September
Cedar Key, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Cedar Key, FL
- Average sea temperature in September: 83.8°F
The best month for swimming (with the highest average sea temperature) is August (86.4°F).
The coldest month (with the lowest average sea temperature) is January (58.4°F).
Average daylight in September /
Average sunshine in September
Cedar Key, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Cedar Key, FL
- Average sunshine days in September: 8.8 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in September
Cedar Key, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in September
Cedar Key, FL
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 25).
Average visibility in September
Cedar Key, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Cedar Key, Florida, USA
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