September weather forecast
Relay, FL

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Weather in September

The first month of the autumn, September, is also a hot month in Relay, Florida, with an average temperature varying between 88.5°F (31.4°C) and 73.8°F (23.2°C).

Temperature

September records an average high-temperature of a still tropical 88.5°F (31.4°C), indicating a minor variation from the preceding month. Throughout the month of September, the average temperature in Relay dips to a moderately hot 73.8°F (23.2°C) at night.

Heat index

The heat index in September is estimated at a blistering 105.8°F (41°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. 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 frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The months with the highest humidity in Relay are August and September, with an average relative humidity of 78%.

Rainfall

In Relay, in September, it is raining for 22.3 days, with typically 4.09" (104mm) of accumulated precipitation. In Relay, during the entire year, the rain falls for 191.3 days and collects up to 34.45" (875mm) of precipitation.

Snowfall

In Relay, snow does not fall in February through December.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:11 pm EDT.

Sunshine

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

UV index

In Relay, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

How hot is it in Relay in September?

The average high-temperature, in September, in Relay, is 88.5°F (31.4°C), while the average low-temperature is 73.8°F (23.2°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 105.8°F (41°C).

What are the most humid months in Relay?

The months with the highest humidity are August and September, with an average relative humidity of 78%.

What is the average humidity in September in Relay?

In September, the average relative humidity is 78%.

How much does it rain in Relay in September?

In Relay, Florida, during September, the rain falls for 22.3 days and regularly aggregates up to 4.09" (104mm) of precipitation.

When it does not snow in Relay?

February through December are months without snowfall in Relay.

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

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

When are sunrise and sunset in September in Relay?

On the first day of September in Relay, sunrise is at 7:03 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:11 pm EDT.

How many hours of sunshine does Relay have in September?

The average sunshine duration in September in Relay, Florida, is 8.5h.

What is the UV index reading in September in Relay?

The average daily maximum UV index in September in Relay, Florida, is 6. A UV Index of 6 to 7 symbolizes 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
Relay, FL

Average temperature in September - Relay, FL
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (67.1°F).

  • Average low temperature in September: 73.8°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).

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Average pressure in September
Relay, FL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in September
Relay, FL

Average wind speed in September - Relay, FL
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are March and April (5.8mph).
The calmest month (with the lowest average wind speed) is July (4.2mph).

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Average humidity in September
Relay, FL

Average humidity in September - Relay, 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%).

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Average rainfall in September
Relay, FL

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

The wettest month (with the highest rainfall) is July (5.28").
The driest months (with the least rainfall) are March and November (1.26").

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Average rainfall days in September
Relay, FL

Average rainfall days in September - Relay, FL
  • Average rainfall days in September: 22.3 days

The month with the highest number of rainy days is August (26.3 days).
The month with the least rainy days is November (9.6 days).

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Average snowfall days in September
Relay, FL

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

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

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

Average daylight in September / Average sunshine in September - Relay, 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).

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Average sunshine days in September
Relay, FL

Average sunshine days in September - Relay, FL
  • Average sunshine days in September: 6.1 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is August (3 days).

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Average UV index in September
Relay, FL

Average UV index in September - Relay, 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
Relay, FL

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

The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 29).

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Average visibility in September
Relay, FL

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

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