September weather forecast
Nokomis, FL

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Weather in September

The first month of the autumn, September, is still a hot month in Nokomis, Florida, with an average temperature varying between 86.7°F (30.4°C) and 77.9°F (25.5°C).

Temperature

Nokomis starts September with an average high-temperature of a still hot 86.7°F (30.4°C), a minor shift from August's 87.8°F (31°C). Recording a slight decline in temperature during the nights, Nokomis's September temperatures average at a warm 77.9°F (25.5°C).

Heat index

September's average heat index is computed to be a fiery hot 100.4°F (38°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Nokomis, the average relative humidity in September is 76%.

Rainfall

In Nokomis, in September, it is raining for 19.2 days, with typically 1.85" (47mm) of accumulated precipitation. In Nokomis, during the entire year, the rain falls for 150.8 days and collects up to 17.13" (435mm) of precipitation.

Ocean temperature

In Nokomis, the average seawater temperature in September is 84.7°F (29.3°C).
Note: Swimming, diving, and other water activities in temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are highly enjoyable and provide prolonged comfort without unease.

Daylight

In September, the average length of the day in Nokomis is 12h and 19min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

In September, the average sunshine in Nokomis is 9.1h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.

Frequently asked questions

How hot is September in Nokomis?

The average high-temperature, in September, in Nokomis, is 86.7°F (30.4°C), while the average low-temperature is 77.9°F (25.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 100.4°F (38°C).

What is the average humidity in September in Nokomis?

The average relative humidity in September is 76%.

How many days does it rain in September in Nokomis?

In Nokomis, Florida, in September, it is raining for 19.2 days, with typically 1.85" (47mm) of accumulated precipitation.

What is the ocean temperature in September in Nokomis?

In Nokomis, the average seawater temperature in September is 84.7°F (29.3°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 Nokomis have in September?

In Nokomis, the average day length in September is 12h and 19min.

What time are sunrise and sunset in September in Nokomis?

On the first day of September, sunrise is at 7:09 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

How many hours of sunshine does Nokomis have in September?

The average sunshine duration in September in Nokomis, Florida, is 9.1h.

What are the months with the highest UV index in Nokomis?

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

What is the UV index intensity in September in Nokomis?

In Nokomis, Florida, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health threat 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
Nokomis, FL

Average temperature in September - Nokomis, FL
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is August (87.8°F).
The month with the lowest average high temperature is January (68.5°F).

  • Average low temperature in September: 77.9°F

The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (57°F).

Average pressure in September
Nokomis, FL

Average pressure in September - Nokomis, FL
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

Average wind speed in September
Nokomis, FL

Average wind speed in September - Nokomis, FL
  • Average wind speed in September: 7.8mph

The windiest months (with the highest average wind speed) are January and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

Average humidity in September
Nokomis, FL

Average humidity in September - Nokomis, FL
  • Average humidity in September: 76%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Nokomis, FL

Average rainfall in September - Nokomis, FL
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is August (3.54").
The driest months (with the least rainfall) are February and March (0.43").

Average rainfall days in September
Nokomis, FL

Average rainfall days in September - Nokomis, FL
  • Average rainfall days in September: 19.2 days

The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is February (6.4 days).

Average sea temperature in September
Nokomis, FL

Average sea temperature in September - Nokomis, FL
  • Average sea temperature in September: 84.7°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64.9°F).

Average daylight in September /
Average sunshine in September
Nokomis, FL

Average daylight in September / Average sunshine in September - Nokomis, 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 1min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

Average sunshine days in September
Nokomis, FL

Average sunshine days in September - Nokomis, FL
  • Average sunshine days in September: 7 days

The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is August (6 days).

Average UV index in September
Nokomis, FL

Average UV index in September - Nokomis, 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, February and December (UV index 5).

Average cloud cover in September
Nokomis, FL

Average cloud cover in September - Nokomis, FL
  • Average cloud cover in September: 27

The months with the most cloud cover are January and December (Cloud cover 29).
The month with the least cloud cover is May (Cloud cover 22).

Average visibility in September
Nokomis, FL

Average visibility in September - Nokomis, 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).

Nokomis, Florida, USA

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