September weather forecast and climate
Campbell, FL

The first month of the autumn, September, is still a hot month in Campbell, Florida, with average temperature varying between 88.3°F (31.3°C) and 74.3°F (23.5°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still tropical 88.3°F (31.3°C). In September, in Campbell, the average low-temperature is 74.3°F (23.5°C).

Heat index

The average heat index is estimated at an extremely hot 106.2°F (41.2°C). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
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', 'feels like', 'felt air temperature', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like pregnancy, metabolic differences, differences in body mass, height, and shape, and activity influence one's weather impression. 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. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

Months with the highest humidity in Campbell are July through September, with an average relative humidity of 78%.

Rainfall

In September, in Campbell, the rain falls for 23.9 days. Throughout September, 4.45" (113mm) of precipitation is accumulated. Throughout the year, in Campbell, there are 198.9 rainfall days, and 37.52" (953mm) of precipitation is accumulated.

Daylight

The average length of the day in Campbell is 12.3h.

Sunshine

In Campbell, the average sunshine in September is 8.8h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 Campbell?

The average high-temperature, in September, is 88.3°F (31.3°C), while the average low-temperature is 74.3°F (23.5°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines both air temperature and relative humidity, is calculated to 106.2°F (41.2°C).

What are the most humid months in Campbell?

Months with the highest humidity are July through September, with an average relative humidity of 78%.

What is the average humidity in September in Campbell?

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

How many days does it rain in September in Campbell?

In Campbell, Florida, in September, during 23.9 rainfall days, 4.45" (113mm) of precipitation is typically accumulated.

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

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

How many hours of sunshine does Campbell have in September?

In September, the average sunshine in Campbell is 8.8h.

When is the highest UV index in Campbell?

Months with the highest UV index in Campbell, Florida, are May through September, with an average maximum UV index of 7.

What is the UV index intensity in September in Campbell?

In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in September - Campbell, FL
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is January (68.9°F).

  • Average low temperature in September: 74.3°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 (51.6°F).

Average pressure in September - Campbell, FL
  • Average pressure in September: 29.96"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.96").

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

The windiest months (with the highest average wind speed) are January, March and April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September - Campbell, FL
  • Average humidity in September: 78%

Months with the highest relative humidity are July, August and September (78%).
The month with the lowest relative humidity is March (71%).

Average rainfall in September - Campbell, FL
  • Average rainfall in September: 4.45"

The wettest month (with the highest rainfall) is August (6.14").
The driest month (with the least rainfall) is March (1.22").

Average rainfall days in September - Campbell, FL
  • Average rainfall days in September: 23.9 days

The month with the highest number of rainy days is August (27.8 days).
The month with the least rainy days is January (9.8 days).

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

The month with the longest days is June (Average daylight: 13.9h).
The month with the shortest days is December (Average daylight: 10.4h).

  • Average sunshine in September: 8.8h

Months with the most sunshine are May and July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 6.2h).

Average sunshine days in September - Campbell, FL
  • Average sunshine days in September: 4.2 days

The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is August (1.7 days).

Average UV index in September - Campbell, FL
  • Average UV index in September: 7

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 - Campbell, FL
  • Average cloud cover in September: 31

Months with the most cloud cover are February and December (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 28).

Average visibility in September - Campbell, 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).