Atlantic Beach
Florida, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Atlantic Beach, FL

The first month of the autumn, September, is also a hot month in Atlantic Beach, Florida, with average temperature varying between 71.6°F (22°C) and 86°F (30°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still tropical 86°F (30°C). In Atlantic Beach, the average low-temperature is 71.6°F (22°C).

Rainfall

The month with the most rainfall in Atlantic Beach is September when the rain falls for 12 days and typically aggregates up to 6.7" (169mm) of precipitation.

Ocean temperature

In September, the average ocean temperature is 82.4°F (28°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Atlantic Beach, the average length of the day is 12.3h.

Sunshine

In September, the average sunshine is 8h.

UV index

In September, the average daily maximum UV index in Atlantic Beach is 9. A UV Index of 8 to 10 symbolizes a very high health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 9 interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Atlantic Beach?

In Atlantic Beach, in September, the average high-temperature is 86°F (30°C), and the average low-temperature is 71.6°F (22°C).

How many days does it rain in September in Atlantic Beach?

In September, in Atlantic Beach, Florida, the rain falls for 12 days. Throughout September, 6.7" (169mm) of precipitation is accumulated.

What is the rainiest month in Atlantic Beach?

September is the month with the most rainfall in Atlantic Beach, Florida. Rain falls for 12 days and accumulates 6.7" (169mm) of precipitation.

How warm is the water in September in Atlantic Beach?

In Atlantic Beach, in September, the average water temperature is 82.4°F (28°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Atlantic Beach have in September?

In Atlantic Beach, Florida, the average length of the day in September is 12.3h.

How many hours of sunshine does Atlantic Beach have in September?

In September, the average sunshine in Atlantic Beach is 8h.

How high is the UV index in September in Atlantic Beach?

In Atlantic Beach, the average daily maximum UV index in September is 9. A UV Index reading of 8 to 10 represents a very high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Atlantic Beach, FL
  • Average high temperature in September: 86°F

Warmest months (with the highest average high temperature) are July and August (90°F).
The month with the lowest average high temperature is January (63°F).

  • Average low temperature in September: 72°F

Months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (43°F).

Average rainfall in September - Atlantic Beach, FL
  • Average rainfall in September: 6.7"

The wettest month (with the highest rainfall) is September (6.7").
The driest month (with the lowest rainfall) is April (2.5").

Average rainfall days in September - Atlantic Beach, FL
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is August (15 days).
Months with the lowest number of rainy days are April and November (6 days).

Average sea temperature in September - Atlantic Beach, FL
  • Average sea temperature in September: 82°F

The best month for swimming (with the highest average sea temperature) is August (84°F).
Coldest months (with the lowest average sea temperature) are January, February and March (70°F).

Average daylight in September / Average sunshine in September - Atlantic Beach, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.1h).
The month with shortest days is December (Average daylight: 10.2h).

  • Average sunshine in September: 8h

Months with most sunshine are April and May (Average sunshine: 10h).
Months with least sunshine are January and December (Average sunshine: 6).

Average UV index in September - Atlantic Beach, FL
  • Average UV index in September: 9

Months with the highest UV index are June and July (UV index 11).
Months with the lowest UV index are January and December (UV index 4).