September weather forecast
Port Salerno, FL

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Weather in September

September, the first month of the autumn in Port Salerno, is also a moderately hot month, with temperature in the range of an average low of 78.3°F (25.7°C) and an average high of 85.3°F (29.6°C).

Temperature

An average high-temperature of a warm 85.3°F (29.6°C) marks September, exhibiting a close resemblance to the conditions in August. Port Salerno notes an average temperature descent to a still moderately hot 78.3°F (25.7°C) in September, a small shift from its daytime peak.

Heat index

The heat index in September is appraised at a very hot 96.8°F (36°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Port Salerno, in September, during 22.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 168.1 rainfall days, and 14.09" (358mm) of precipitation is accumulated.

Ocean temperature

In Port Salerno, Florida, the average seawater temperature in September is 84.4°F (29.1°C).
Note: For swimming, diving, and enjoying other water activities, the range of 77°F (25°C) to 84.2°F (29°C) in water temperature is considered ideal, offering pleasure for extended periods without discomfort.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September, sunrise is at 7:00 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:07 pm EDT.

Sunshine

In Port Salerno, the average sunshine in September is 9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. 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. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Caution! The Sun's UV intensity grows with reflections off sand and water.
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Frequently asked questions

How hot does it get in Port Salerno in September?

The average high-temperature and low-temperature during September are 85.3°F (29.6°C) and 78.3°F (25.7°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 96.8°F (36°C).

What is the average humidity in September in Port Salerno?

The average relative humidity in September in Port Salerno is 77%.

How many days does it rain in September in Port Salerno?

In Port Salerno, Florida, in September, during 22.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

What is the ocean temperature in September in Port Salerno?

In September, the average ocean temperature is 84.4°F (29.1°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Port Salerno have in September?

In Port Salerno, Florida, the average day length in September is 12h and 19min.

When are sunrise and sunset in September in Port Salerno?

In September, on the first day of the month, sunrise is at 7:00 am and sunset at 7:40 pm. On the last day of the month, in Port Salerno, sunrise is at 7:13 am and sunset at 7:07 pm EDT.

How many hours of sunshine does Port Salerno have in September?

The average sunshine duration in September in Port Salerno, Florida, is 9h.

What are the months with the highest UV index in Port Salerno?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Port Salerno.

What is the UV index intensity in September in Port Salerno?

The average daily maximum UV index in September in Port Salerno, Florida, is 7. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Port Salerno, FL

Average temperature in September - Port Salerno, FL
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (71.4°F).

  • Average low temperature in September: 78.3°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (61.2°F).

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Average pressure in September
Port Salerno, FL

Average pressure in September - Port Salerno, FL
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in September
Port Salerno, FL

Average wind speed in September - Port Salerno, FL
  • Average wind speed in September: 7.9mph

The windiest months (with the highest average wind speed) are January, March and November (10.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in September
Port Salerno, FL

Average humidity in September - Port Salerno, FL
  • Average humidity in September: 77%

The months with the highest relative humidity are June and August (78%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in September
Port Salerno, FL

Average rainfall in September - Port Salerno, FL
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in September
Port Salerno, FL

Average rainfall days in September - Port Salerno, FL
  • Average rainfall days in September: 22.6 days

The month with the highest number of rainy days is August (23.1 days).
The month with the least rainy days is February (7.7 days).

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Average sea temperature in September
Port Salerno, FL

Average sea temperature in September - Port Salerno, FL
  • Average sea temperature in September: 84.4°F

The best month for swimming (with the highest average sea temperature) is August (85.1°F).
The coldest month (with the lowest average sea temperature) is February (73.3°F).

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Average daylight in September /
Average sunshine in September
Port Salerno, FL

Average daylight in September / Average sunshine in September - Port Salerno, FL
  • Average daylight in September: 12h and 2min

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 months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).

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Average sunshine days in September
Port Salerno, FL

Average sunshine days in September - Port Salerno, FL
  • Average sunshine days in September: 4.7 days

The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is August (3.4 days).

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Average UV index in September
Port Salerno, FL

Average UV index in September - Port Salerno, 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 December (UV index 5).

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Average cloud cover in September
Port Salerno, FL

Average cloud cover in September - Port Salerno, FL
  • Average cloud cover in September: 29

The months with the most cloud cover are January, November and December (Cloud cover 34).
The months with the least cloud cover are May and July (Cloud cover 26).

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Average visibility in September
Port Salerno, FL

Average visibility in September - Port Salerno, 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).

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Port Salerno, Florida, USA

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