September weather forecast
Branford, FL

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Weather in September

September, the first month of the autumn in Branford, is still a hot month, with an average temperature varying between 87.3°F (30.7°C) and 72°F (22.2°C).

Temperature

An average high-temperature of a still tropical 87.3°F (30.7°C) marks September, exhibiting a close resemblance to the conditions in August. Throughout September nights, Branford registers an average low-temperature of 72°F (22.2°C).

Heat index

September's heat index is computed to be a fiery hot 102.2°F (39°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Consider that heat index readings are for situations in the shade and light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

August and September, with an average relative humidity of 78%, are the most humid months in Branford.

Rainfall

In September, the rain falls for 16 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. In Branford, Florida, during the entire year, the rain falls for 145.8 days and collects up to 13.39" (340mm) of precipitation.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:18 pm EDT.

Sunshine

In Branford, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Branford in September?

Branford in September has an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 72°F (22.2°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in September is computed to be 102.2°F (39°C).

What are the most humid months?

August and September, with an average relative humidity of 78%, are most humid months.

What is the average humidity in September?

The average relative humidity in September is 78%.

How many days does it rain in September?

In Branford, during September, the rain falls for 16 days and regularly aggregates up to 0.87" (22mm) of precipitation.

What is the average length of the day in September?

The average day length in September is 12h and 20min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 7:09 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:18 pm EDT.

How many hours of sunshine does Branford have in September?

In Branford, the average sunshine duration in September is 8.5h.

What is the UV index reading in September?

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Branford, FL

Average temperature in September - Branford, FL
  • Average high temperature in September: 87.3°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (63.5°F).

  • Average low temperature in September: 72°F

The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (45.7°F).

Average pressure in September
Branford, FL

Average pressure in September - Branford, FL
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

Average wind speed in September
Branford, FL

Average wind speed in September - Branford, FL
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in September
Branford, FL

Average humidity in September - Branford, FL
  • Average humidity in September: 78%

The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).

Average rainfall in September
Branford, FL

Average rainfall in September - Branford, FL
  • Average rainfall in September: 0.87"

The wettest months (with the highest rainfall) are July and August (2.09").
The driest months (with the least rainfall) are March and November (0.55").

Average rainfall days in September
Branford, FL

Average rainfall days in September - Branford, FL
  • Average rainfall days in September: 16 days

The month with the highest number of rainy days is July (21.2 days).
The month with the least rainy days is November (6.3 days).

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

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in September
Branford, FL

Average sunshine days in September - Branford, FL
  • Average sunshine days in September: 10.2 days

The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is July (6.3 days).

Average UV index in September
Branford, FL

Average UV index in September - Branford, FL
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).

Average cloud cover in September
Branford, FL

Average cloud cover in September - Branford, FL
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 38).
The months with the least cloud cover are May and October (Cloud cover 29).

Average visibility in September
Branford, FL

Average visibility in September - Branford, 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).

Branford, Florida, USA

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