September weather forecast
Gulfport, FL

September, the first month of the autumn in Gulfport, is still a tropical month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 77.9°F (25.5°C).

Temperature

In September, Gulfport notes an average high-temperature of a still tropical 86.5°F (30.3°C), hardly different from the preceding month. In Gulfport, the average low-temperature during September nights tends to settle at a warm 77.9°F (25.5°C), indicating a slight drop from the daytime peak.

Heat index

The average heat index in September is computed to be a sweltering 98.6°F (37°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. 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 relevant to children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Gulfport, Florida, the average relative humidity in September is 74%.

Rainfall

In Gulfport, in September, it is raining for 17.5 days, with typically 1.02" (26mm) of accumulated precipitation. In Gulfport, during the entire year, the rain falls for 122.3 days and collects up to 9.45" (240mm) of precipitation.

Ocean temperature

In Gulfport, the average seawater temperature in September is 84.7°F (29.3°C).
Note: Water activities in temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are pleasurable, without feeling uncomfortable even during extended periods.

Daylight

In September, the average length of the day in Gulfport is 12h and 19min.
On the first day of the month, sunrise is at 7:09 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Beware! Reflections from sand and water can intensify the Sun's UV radiation.