September weather forecast and climate
Bunker Donation, FL

The first month of the autumn, September, is also a hot month in Bunker Donation, Florida, with average temperature varying between 86.9°F (30.5°C) and 70.7°F (21.5°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still tropical 86.9°F (30.5°C). The average low-temperature, in Bunker Donation, is 70.7°F (21.5°C).

Heat index

The average heat index is evaluated at a torrid 100.4°F (38°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, differences in body mass, height, and shape, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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 cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in September is 76%.

Rainfall

In September, the rain falls for 18.5 days. Throughout September, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 185.4 rainfall days, and 39.13" (994mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall in Bunker Donation, Florida.

Daylight

In September, the average length of the day in Bunker Donation, Florida, is 12.3h.

Sunshine

In September, the average sunshine is 8.9h.

UV index

The average daily maximum UV index in Bunker Donation, Florida, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Bunker Donation?

In September, in Bunker Donation, Florida, the average high-temperature is 86.9°F (30.5°C), and the average low-temperature is 70.7°F (21.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), that combines air temperature and relative humidity, in September is estimated at 100.4°F (38°C).

What is the average humidity in September in Bunker Donation?

In September, the average relative humidity in Bunker Donation, Florida, is 76%.

How much does it rain in Bunker Donation in September?

In Bunker Donation, in September, during 18.5 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When it does not snow in Bunker Donation?

In Bunker Donation, Florida, snow does not fall in February through December.

How many hours of daylight does Bunker Donation have in September?

In Bunker Donation, the average length of the day in September is 12.3h.

How long on average sun shines in September in Bunker Donation?

The average sunshine in September in Bunker Donation, Florida, is 8.9h.

What is the UV index intensity in September in Bunker Donation?

In Bunker Donation, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.
Average temperature in September - Bunker Donation, FL
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in September: 70.7°F

The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).

Average pressure in September - Bunker Donation, FL
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June, August and September (29.98").

Average wind speed in September - Bunker Donation, FL
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in September - Bunker Donation, FL
  • Average humidity in September: 76%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is May (71%).

Average rainfall in September - Bunker Donation, FL
  • Average rainfall in September: 2.87"

The wettest month (with the highest rainfall) is August (5.94").
The driest month (with the least rainfall) is November (1.85").

Average rainfall days in September - Bunker Donation, FL
  • Average rainfall days in September: 18.5 days

The month with the highest number of rainy days is August (25.6 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in September - Bunker Donation, FL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.12").
Months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September - Bunker Donation, FL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.2 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September / Average sunshine in September - Bunker Donation, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in September: 8.9h

Months with the most sunshine are May and July (Average sunshine: 10.9h).
The month with the least sunshine is February (Average sunshine: 5.4h).

Average sunshine days in September - Bunker Donation, FL
  • Average sunshine days in September: 9 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (3.9 days).

Average UV index in September - Bunker Donation, FL
  • Average UV index in September: 6

Months with the highest UV index are May, June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September - Bunker Donation, FL
  • Average cloud cover in September: 28

The month with the most cloud cover is December (Cloud cover 43).
Months with the least cloud cover are May and October (Cloud cover 26).

Average visibility in September - Bunker Donation, FL
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).