September weather forecast
Saybrook, FL

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Weather in September

September, the first month of the autumn in Saybrook, is still a tropical month, with temperature in the range of an average high of 86°F (30°C) and an average low of 75.9°F (24.4°C).

Temperature

Saybrook starts September with an average high-temperature of a still tropical 86°F (30°C), a minor shift from August's 88.5°F (31.4°C). Throughout the nights in September, an average low-temperature of 75.9°F (24.4°C) is noted.

Heat index

In September, the heat index is calculated to be a sweltering 98.6°F (37°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

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

Rainfall

In September, the rain falls for 19.8 days. Throughout September, 4.09" (104mm) of precipitation is accumulated. Throughout the year, there are 186.8 rainfall days, and 30.2" (767mm) of precipitation is accumulated.

Snowfall

February through November are months without snowfall in Saybrook.

Daylight

In Saybrook, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:02 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:11 pm EDT.

Sunshine

In Saybrook, Florida, the average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September in Saybrook, Florida, is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during September translates into the following guidance:
Deflect overexposure. Sun protection is a necessity. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

How hot is September in Saybrook?

September temperatures vary between a high-temperature of 86°F (30°C) and a low-temperature of 75.9°F (24.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in September is calculated to be 98.6°F (37°C).

What is the average humidity in September in Saybrook?

In September, the average relative humidity is 76%.

How much does it rain in Saybrook in September?

In September, in Saybrook, Florida, the rain falls for 19.8 days. Throughout September, 4.09" (104mm) of precipitation is accumulated.

When it does not snow in Saybrook?

February through November are months without snowfall.

How many hours of daylight does Saybrook have in September?

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

When are sunrise and sunset in September in Saybrook?

On the first day of September in Saybrook, sunrise is at 7:02 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:11 pm EDT.

How long on average sun shines in September in Saybrook?

In Saybrook, Florida, the average sunshine duration in September is 8.6h.

What is the UV index reading in September in Saybrook?

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

Average temperature in September
Saybrook, FL

Average temperature in September - Saybrook, FL
  • Average high temperature in September: 86°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (64°F).

  • Average low temperature in September: 75.9°F

The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (51.4°F).

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Average pressure in September
Saybrook, FL

Average pressure in September - Saybrook, FL
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.98"Hg).

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Average wind speed in September
Saybrook, FL

Average wind speed in September - Saybrook, FL
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity in September
Saybrook, FL

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

The months with the highest relative humidity are July, August and December (77%).
The month with the lowest relative humidity is March (71%).

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Average rainfall in September
Saybrook, FL

Average rainfall in September - Saybrook, FL
  • Average rainfall in September: 4.09"

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (1.18").

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Average rainfall days in September
Saybrook, FL

Average rainfall days in September - Saybrook, FL
  • Average rainfall days in September: 19.8 days

The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is February (10.3 days).

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Average snowfall days in September
Saybrook, FL

Average snowfall days in September - Saybrook, FL
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Saybrook, 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 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in September
Saybrook, FL

Average sunshine days in September - Saybrook, FL
  • Average sunshine days in September: 6.8 days

The month with the most sunshine days is March (17.9 days).
The month with the least sunshine days is August (4.4 days).

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Average UV index in September
Saybrook, FL

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

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

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Average cloud cover in September
Saybrook, FL

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

The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 26).

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Average visibility in September
Saybrook, FL

Average visibility in September - Saybrook, 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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Saybrook, Florida, USA

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