September weather forecastPalm Beach Gardens, FL
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Palm Beach Gardens, Florida, with an average temperature ranging between max 84.7°F (29.3°C) and min 80.4°F (26.9°C).Temperature
The beginning of September records an average high-temperature of a warm 84.7°F (29.3°C), marking a negligible difference from August's 86.5°F (30.3°C). Palm Beach Gardens upholds a consistent average temperature of 80.4°F (26.9°C) throughout the nights of September.Heat index
Throughout September, the heat index is evaluated at a tropical 93.2°F (34°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
The average relative humidity in September is 75%.Rainfall
In Palm Beach Gardens, in September, it is raining for 25 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, in Palm Beach Gardens, there are 193.9 rainfall days, and 22.56" (573mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 18min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:07 pm EDT.
Sunshine
In September, the average sunshine 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 threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 7 in September leads to these recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Palm Beach Gardens, FL
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (72°F).
- Average low temperature in September: 80.4°F
The month with the highest average low temperature is August (81.3°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).
Average pressure in September
Palm Beach Gardens, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in September
Palm Beach Gardens, FL
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is March (11.8mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Palm Beach Gardens, FL
- Average humidity in September: 75%
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Palm Beach Gardens, FL
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Palm Beach Gardens, FL
- Average rainfall days in September: 25 days
The month with the highest number of rainy days is September (25 days).
The month with the least rainy days is February (9.3 days).
Average daylight in September /
Average sunshine in September
Palm Beach Gardens, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).
Average sunshine days in September
Palm Beach Gardens, FL
- Average sunshine days in September: 3.6 days
The month with the most sunshine days is January (18.2 days).
The month with the least sunshine days is August (3.5 days).
Average UV index in September
Palm Beach Gardens, 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 months with the lowest UV index are January and February (UV index 5).
Average cloud cover in September
Palm Beach Gardens, FL
- Average cloud cover in September: 31
The months with the most cloud cover are January, November and December (Cloud cover 35).
The months with the least cloud cover are May, July and August (Cloud cover 28).
Average visibility in September
Palm Beach Gardens, 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).





