September weather forecast
Palm Bay, FL

englishespañol中文
Share

Weather in September

September brings a slow and steady change in Palm Bay's weather, marking the departure of the peak summer season. Signs of the upcoming fall begin to appear as temperatures and sea temperatures start to retreat. Despite the change, September remains a humid month, second only to the peak hot months, keeping the tropical feel alive in the city. Rain is still prevalent, albeit at reduced intensity in comparison to August's dramatic downpours. Wind speeds begin to pick up again, recording an average of 8.5mph (13.7km/h).

Temperature

September's weather in Palm Bay displays an average high-temperature of a warm 84.7°F (29.3°C), slightly varied from August's 86.7°F (30.4°C). Palm Bay encounters an average temperature dip to a still moderately hot 77.7°F (25.4°C) throughout September, subtly lower than its daytime maximum.

Heat index

September's heat index is computed to be a very hot 95°F (35°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

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

Rainfall

In Palm Bay, Florida, in September, it is raining for 23.5 days, with typically 4.92" (125mm) of accumulated precipitation. Throughout the year, there are 197.1 rainfall days, and 35.98" (914mm) of precipitation is accumulated.

Ocean temperature

In September, the average ocean temperature is 84°F (28.9°C).
Note: For engaging in any water activities, temperatures from 77°F (25°C) to 84.2°F (29°C) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September, sunrise is at 7:01 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:09 pm EDT.

Sunshine

In Palm Bay, the average sunshine in September is 9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Attention! The reflection of both water and sand can increase the intensity of UV rays.

Frequently asked questions

How hot is September?

In September, in Palm Bay, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 77.7°F (25.4°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is computed to be 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September is 78%.

How much does it rain in September?

In Palm Bay, during September, the rain falls for 23.5 days and regularly aggregates up to 4.92" (125mm) of precipitation.

How warm is the water in September?

In Palm Bay, the average seawater temperature in September is 84°F (28.9°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Palm Bay have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:01 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:09 pm EDT.

How many hours of sunshine does Palm Bay have in September?

In Palm Bay, the average sunshine duration in September is 9h.

What are the months with the highest UV index in Palm Bay?

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

What is the UV index reading in September in Palm Bay?

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.

Average temperature in September
Palm Bay, FL

Average temperature in September - Palm Bay, FL
  • Average high temperature in September: 84.7°F

The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (69.3°F).

  • Average low temperature in September: 77.7°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).

Average pressure in September
Palm Bay, FL

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

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

Average wind speed in September
Palm Bay, FL

Average wind speed in September - Palm Bay, FL
  • Average wind speed in September: 8.5mph

The windiest month (with the highest average wind speed) is November (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in September
Palm Bay, FL

Average humidity in September - Palm Bay, FL
  • Average humidity in September: 78%

The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).

Average rainfall in September
Palm Bay, FL

Average rainfall in September - Palm Bay, FL
  • Average rainfall in September: 4.92"

The wettest month (with the highest rainfall) is August (6.85").
The driest month (with the least rainfall) is February (0.91").

Average rainfall days in September
Palm Bay, FL

Average rainfall days in September - Palm Bay, FL
  • Average rainfall days in September: 23.5 days

The month with the highest number of rainy days is August (25.5 days).
The month with the least rainy days is February (9.9 days).

Average sea temperature in September
Palm Bay, FL

Average sea temperature in September - Palm Bay, FL
  • Average sea temperature in September: 84.1°F

The best month for swimming (with the highest average sea temperature) is August (84.7°F).
The coldest month (with the lowest average sea temperature) is January (71.4°F).

Average daylight in September /
Average sunshine in September
Palm Bay, FL

Average daylight in September / Average sunshine in September - Palm Bay, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

Average sunshine days in September
Palm Bay, FL

Average sunshine days in September - Palm Bay, FL
  • Average sunshine days in September: 4.3 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is August (3.3 days).

Average UV index in September
Palm Bay, FL

Average UV index in September - Palm Bay, 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 months with the lowest UV index are January, February and December (UV index 5).

Average cloud cover in September
Palm Bay, FL

Average cloud cover in September - Palm Bay, FL
  • Average cloud cover in September: 30

The month with the most cloud cover is November (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 26).

Average visibility in September
Palm Bay, FL

Average visibility in September - Palm Bay, 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).

Palm Bay, Florida, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location