September weather forecast
Curlew, FL

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Weather in September

The first month of the autumn, September, is also a hot month in Curlew, Florida, with an average temperature ranging between min 77.7°F (25.4°C) and max 86.5°F (30.3°C).

Temperature

Curlew measures an average high-temperature of a still hot 86.5°F (30.3°C) in September, nearly consistent with the preceding month. In Curlew, September nights maintain a consistent temperature, with an average low of 77.7°F (25.4°C).

Heat index

The heat index in September is evaluated at a torrid 98.6°F (37°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. 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 heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Curlew, in September, it is raining for 21 days, with typically 3.7" (94mm) of accumulated precipitation. Throughout the year, there are 168.5 rainfall days, and 27.4" (696mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September, sunrise is at 7:09 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

Is it hot during September?

The high-temperature during September is 86.5°F (30.3°C) and the low-temperature is 77.7°F (25.4°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is evaluated at 98.6°F (37°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How much does it rain in September?

In Curlew, during September, the rain falls for 21 days and regularly aggregates up to 3.7" (94mm) of precipitation.

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

The average day length in September in Curlew is 12h and 19min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

How many hours of sunshine does Curlew have in September?

The average sunshine duration in September is 9.2h.

What are the months with the highest UV index?

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

What is the UV index reading in September?

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health risk 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
Curlew, FL

Average temperature in September - Curlew, FL
  • Average high temperature in September: 86.5°F

The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (65.7°F).

  • Average low temperature in September: 77.7°F

The month with the highest average low temperature is August (80.4°F).
The coldest month (with the lowest average low temperature) is January (55°F).

Average pressure in September
Curlew, FL

Average pressure in September - Curlew, FL
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

Average wind speed in September
Curlew, FL

Average wind speed in September - Curlew, FL
  • Average wind speed in September: 7.6mph

The windiest months (with the highest average wind speed) are January and March (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

Average humidity in September
Curlew, FL

Average humidity in September - Curlew, FL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are May and October (72%).

Average rainfall in September
Curlew, FL

Average rainfall in September - Curlew, FL
  • Average rainfall in September: 3.7"

The wettest month (with the highest rainfall) is August (5.16").
The driest month (with the least rainfall) is March (0.79").

Average rainfall days in September
Curlew, FL

Average rainfall days in September - Curlew, FL
  • Average rainfall days in September: 21 days

The month with the highest number of rainy days is July (25.6 days).
The month with the least rainy days is November (7.6 days).

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

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

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in September
Curlew, FL

Average sunshine days in September - Curlew, FL
  • Average sunshine days in September: 6.2 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (3.6 days).

Average UV index in September
Curlew, FL

Average UV index in September - Curlew, 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 4).

Average cloud cover in September
Curlew, FL

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

The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).

Average visibility in September
Curlew, FL

Average visibility in September - Curlew, 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).

Curlew, Florida, USA

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