September weather forecast
Alachua, FL

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Weather in September

September, the first month of the autumn in Alachua, is still a hot month, with an average temperature varying between 87.3°F and 72°F.

Temperature

The commencement of September brings an average high-temperature of a still hot 87.3°F, marking an inconsequential divergence from August. During September, Alachua records an average temperature of 72°F at night.

Heat index

September's average heat index is evaluated at a sweltering 102.2°F. Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

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

Rainfall

In Alachua, in September, it is raining for 22.5 days, with typically 3.23" of accumulated precipitation. In Alachua, during the entire year, the rain falls for 196.8 days and collects up to 35.71" of precipitation.

Daylight

In Alachua, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:07 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:17 pm EDT.

Sunshine

The average sunshine in September in Alachua is 8.5h.

UV index

The average daily maximum UV index in September in Alachua is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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FAQ

How hot does it get in Alachua in September?

The high-temperature, in September, in Alachua, records 87.3°F, while the low-temperature is 72°F. In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 102.2°F.

What is the most humid month in Alachua?

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

What is the average humidity in September in Alachua?

In September, the average relative humidity in Alachua is 78%.

How many days does it rain in September in Alachua?

In Alachua, Florida, in September, during 22.5 rainfall days, 3.23" of precipitation is typically accumulated.

How many hours of daylight does Alachua have in September?

In September, the average day length in Alachua is 12h and 20min.

What time are sunrise and sunset in September in Alachua?

In September, on the first day of the month, sunrise is at 7:07 am and sunset at 7:52 pm. On the last day of the month, in Alachua, sunrise is at 7:22 am and sunset at 7:17 pm EDT.

How many hours of sunshine does Alachua have in September?

The average sunshine duration in September is 8.5h.

How high is the UV index in September in Alachua?

The average daily maximum UV index in September in Alachua, Florida, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Alachua, FL

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

The warmest months (with the highest average high temperature) are July and August (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 (45.5°F).

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Average pressure in September
Alachua, FL

Average pressure in September - Alachua, 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).

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Average wind speed in September
Alachua, FL

Average wind speed in September - Alachua, FL
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average humidity in September
Alachua, FL

Average humidity in September - Alachua, 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 (70%).

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Average rainfall in September
Alachua, FL

Average rainfall in September - Alachua, FL
  • Average rainfall in September: 3.23"

The wettest month (with the highest rainfall) is August (5.43").
The driest month (with the least rainfall) is November (1.46").

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Average rainfall days in September
Alachua, FL

Average rainfall days in September - Alachua, FL
  • Average rainfall days in September: 22.5 days

The month with the highest number of rainy days is August (28.3 days).
The month with the least rainy days is November (8.5 days).

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

Average daylight in September / Average sunshine in September - Alachua, 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 36min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in September
Alachua, FL

Average sunshine days in September - Alachua, FL
  • Average sunshine days in September: 5.9 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (1.8 days).

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Average UV index in September
Alachua, FL

Average UV index in September - Alachua, 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).

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Average cloud cover in September
Alachua, FL

Average cloud cover in September - Alachua, FL
  • Average cloud cover in September: 34

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are May and October (Cloud cover 30).

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Average visibility in September
Alachua, FL

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

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