September weather forecast
Weeki Wachee, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in Weeki Wachee, Florida, with temperature in the range of an average high of 88.2°F (31.2°C) and an average low of 73.6°F (23.1°C).

Temperature

Weeki Wachee's shift into September sets the average high-temperature at a still hot 88.2°F (31.2°C), a figure that deviates only slightly from August's 89.8°F (32.1°C). September nights in Weeki Wachee are marked by an average low-temperature of 73.6°F (23.1°C).

Heat index

September's average heat index is appraised at an extremely hot 105.8°F (41°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

September is the most humid month in Weeki Wachee, with an average relative humidity of 79%.

Rainfall

In September, the rain falls for 23.1 days. Throughout September, 3.9" (99mm) of precipitation is accumulated. In Weeki Wachee, during the entire year, the rain falls for 191.7 days and collects up to 37.99" (965mm) of precipitation.

Snowfall

In Weeki Wachee, snow does not fall in February through December.

Daylight

In Weeki Wachee, the average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:08 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:16 pm EDT.

Sunshine

In Weeki Wachee, Florida, the average sunshine in September is 8.8h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Deter overexposure. Protecting against the sun's effects is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Weeki Wachee in September?

The average high-temperature, in September, in Weeki Wachee, is 88.2°F (31.2°C), while the average low-temperature is 73.6°F (23.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 105.8°F (41°C).

What is the most humid month in Weeki Wachee?

September is the most humid month in Weeki Wachee, with an average relative humidity of 79%.

What is the average humidity in September in Weeki Wachee?

The average relative humidity in September is 79%.

How much does it rain in Weeki Wachee in September?

In Weeki Wachee, Florida, in September, it is raining for 23.1 days, with typically 3.9" (99mm) of accumulated precipitation.

When it does not snow in Weeki Wachee?

In Weeki Wachee, Florida, snow does not fall in February through December.

What is the average length of the day in September in Weeki Wachee?

In Weeki Wachee, Florida, the average day length in September is 12h and 19min.

When is the sunrise / sunset in September in Weeki Wachee?

On the first day of September in Weeki Wachee, Florida, sunrise is at 7:08 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:16 pm EDT.

How long on average sun shines in September in Weeki Wachee?

In Weeki Wachee, the average sunshine duration in September is 8.8h.

What is the month with the highest UV index in Weeki Wachee?

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 Weeki Wachee?

In September, the average daily maximum UV index in Weeki Wachee, Florida, is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Weeki Wachee, FL

Average temperature in September - Weeki Wachee, FL
  • Average high temperature in September: 88.2°F

The warmest month (with the highest average high temperature) is August (89.8°F).
The month with the lowest average high temperature is January (66.9°F).

  • Average low temperature in September: 73.6°F

The month with the highest average low temperature is August (76.1°F).
The coldest month (with the lowest average low temperature) is January (49.8°F).

Average pressure in September
Weeki Wachee, FL

Average pressure in September - Weeki Wachee, 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
Weeki Wachee, FL

Average wind speed in September - Weeki Wachee, FL
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in September
Weeki Wachee, FL

Average humidity in September - Weeki Wachee, FL
  • Average humidity in September: 79%

The month with the highest relative humidity is September (79%).
The months with the lowest relative humidity are January, March and May (73%).

Average rainfall in September
Weeki Wachee, FL

Average rainfall in September - Weeki Wachee, FL
  • Average rainfall in September: 3.9"

The wettest month (with the highest rainfall) is July (6.57").
The driest month (with the least rainfall) is March (1.38").

Average rainfall days in September
Weeki Wachee, FL

Average rainfall days in September - Weeki Wachee, FL
  • Average rainfall days in September: 23.1 days

The month with the highest number of rainy days is August (27.1 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in September
Weeki Wachee, FL

Average snowfall in September - Weeki Wachee, FL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Weeki Wachee, FL

Average snowfall days in September - Weeki Wachee, 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).

Average daylight in September /
Average sunshine in September
Weeki Wachee, FL

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

The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

Average sunshine days in September
Weeki Wachee, FL

Average sunshine days in September - Weeki Wachee, FL
  • Average sunshine days in September: 4.5 days

The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is August (1.4 days).

Average UV index in September
Weeki Wachee, FL

Average UV index in September - Weeki Wachee, 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
Weeki Wachee, FL

Average cloud cover in September - Weeki Wachee, FL
  • Average cloud cover in September: 31

The months with the most cloud cover are February and December (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 27).

Average visibility in September
Weeki Wachee, FL

Average visibility in September - Weeki Wachee, 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).

Weeki Wachee, Florida, USA

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