September weather forecast
Lantana, FL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Lantana, Florida, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 80.1°F (26.7°C).

Temperature

Lantana's weather in September, with an average high-temperature of a moderately hot 85.1°F (29.5°C), subtly shifts from August's 86.7°F (30.4°C). Lantana's average low temperature, barely cooler than the daytime high, steadies at 80.1°F (26.7°C) during September.

Heat index

The average heat index in September is estimated at a very hot 95°F (35°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
The standards for the heat index are set for locations in shade and under light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Lantana, Florida, in September, it is raining for 26.8 days, with typically 7.48" (190mm) of accumulated precipitation. Throughout the year, in Lantana, there are 238.3 rainfall days, and 54.53" (1385mm) of precipitation is accumulated.

Ocean temperature

In September, the average ocean temperature in Lantana is 84.7°F (29.3°C).
Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

In Lantana, the average length of the day in September is 12h and 18min.
On the first day of September, sunrise is at 7:00 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

Sunshine

In September, the average sunshine in Lantana is 8.9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 7 in September translates into these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September in Lantana?

In September, in Lantana, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 80.1°F (26.7°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 95°F (35°C).

What is the average humidity in September in Lantana?

The average relative humidity in September in Lantana, Florida, is 75%.

How many days does it rain in September in Lantana?

In Lantana, in September, it is raining for 26.8 days, with typically 7.48" (190mm) of accumulated precipitation.

What is the water temperature in September in Lantana?

In September, the average ocean temperature in Lantana, Florida, is 84.7°F (29.3°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.

What is the average length of the day in September in Lantana?

In September, the average day length in Lantana, Florida, is 12h and 18min.

When are sunrise and sunset in September in Lantana?

In September, on the first day of the month, sunrise is at 7:00 am and sunset at 7:39 pm. On the last day of the month, in Lantana, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

How many hours of sunshine does Lantana have in September?

The average sunshine duration in September in Lantana, Florida, is 8.9h.

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

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

What is the UV index reading in September in Lantana?

The average daily maximum UV index in September in Lantana, Florida, is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in September
Lantana, FL

Average temperature in September - Lantana, FL
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (72.5°F).

  • Average low temperature in September: 80.1°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64°F).

Average pressure in September
Lantana, FL

Average pressure in September - Lantana, 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
Lantana, FL

Average wind speed in September - Lantana, FL
  • Average wind speed in September: 8.5mph

The windiest month (with the highest average wind speed) is March (11.5mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

Average humidity in September
Lantana, FL

Average humidity in September - Lantana, FL
  • Average humidity in September: 75%

The months with the highest relative humidity are June and December (76%).
The month with the lowest relative humidity is March (70%).

Average rainfall in September
Lantana, FL

Average rainfall in September - Lantana, FL
  • Average rainfall in September: 7.48"

The wettest month (with the highest rainfall) is August (9.06").
The driest month (with the least rainfall) is January (1.3").

Average rainfall days in September
Lantana, FL

Average rainfall days in September - Lantana, FL
  • Average rainfall days in September: 26.8 days

The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (13.3 days).

Average sea temperature in September
Lantana, FL

Average sea temperature in September - Lantana, FL
  • Average sea temperature in September: 84.8°F

The best month for swimming (with the highest average sea temperature) is August (85.7°F).
The coldest month (with the lowest average sea temperature) is January (74.1°F).

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

Average daylight in September / Average sunshine in September - Lantana, 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: 8h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 6h and 0min).

Average sunshine days in September
Lantana, FL

Average sunshine days in September - Lantana, FL
  • Average sunshine days in September: 2.8 days

The month with the most sunshine days is March (12.7 days).
The month with the least sunshine days is July (2.3 days).

Average UV index in September
Lantana, FL

Average UV index in September - Lantana, 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 5).

Average cloud cover in September
Lantana, FL

Average cloud cover in September - Lantana, FL
  • Average cloud cover in September: 32

The months with the most cloud cover are January, October, November and December (Cloud cover 36).
The months with the least cloud cover are April and July (Cloud cover 29).

Average visibility in September
Lantana, FL

Average visibility in September - Lantana, 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).

Lantana, Florida, USA

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