September weather forecastSydney, FL
September
Weather in September
The first month of the autumn, September, is still a tropical month in Sydney, Florida, with an average temperature ranging between max 88.3°F (31.3°C) and min 73.9°F (23.3°C).Temperature
The arrival of September is marked by an average high-temperature of a still tropical 88.3°F (31.3°C), bearing a close resemblance to August. Throughout September, the average low-temperature dips to a moderately hot 73.9°F (23.3°C).Heat index
During September, the heat index is calculated to be an extremely hot 105.8°F (41°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
The most humid month is September, with an average relative humidity of 78%.Rainfall
In Sydney, in September, it is raining for 23 days, with typically 4.45" (113mm) of accumulated precipitation. In Sydney, during the entire year, the rain falls for 192.2 days and collects up to 37.91" (963mm) of precipitation.Daylight
The average length of the day in September is 12h and 19min.On the first day of September, sunrise is at 7:07 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 7 during September leads to these advisories:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sydney, FL
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (68.9°F).
- Average low temperature in September: 73.9°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (51.8°F).
Average pressure in September
Sydney, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Sydney, FL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is March (6.9mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in September
Sydney, FL
- Average humidity in September: 78%
The month with the highest relative humidity is September (78%).
The months with the lowest relative humidity are March and May (71%).
Average rainfall in September
Sydney, FL
- Average rainfall in September: 4.45"
The wettest month (with the highest rainfall) is August (6.93").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in September
Sydney, FL
- Average rainfall days in September: 23 days
The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (8.8 days).
Average daylight in September /
Average sunshine in September
Sydney, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in September
Sydney, FL
- Average sunshine days in September: 5.1 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (2.7 days).
Average UV index in September
Sydney, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Sydney, FL
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in September
Sydney, 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).
