September weather forecastBoynton Beach, FL

Weather in September

September, the first month of the autumn in Boynton Beach, is also a moderately hot month, with temperature in the range of an average low of 80.1°F (26.7°C) and an average high of 85.1°F (29.5°C).

Temperature

During September, the average high-temperature is a warm 85.1°F (29.5°C), maintaining a close resemblance to that of the preceding month. Boynton Beach sees a minor drop to an average minimum temperature of 80.1°F (26.7°C) during the night in the month of September.

Heat index

Throughout September, the heat index is evaluated at a torrid 95°F (35°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in September in Boynton Beach is 75%.

Rainfall

In Boynton Beach, in September, it is raining for 26.8 days, with typically 7.48" (190mm) of accumulated precipitation. In Boynton Beach, during the entire year, the rain falls for 238.3 days and collects up to 54.53" (1385mm) of precipitation.

Ocean temperature

In Boynton Beach, the average seawater temperature in September is 84.7°F (29.3°C).
Note: For swimming, diving, and various water activities, the temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as highly enjoyable and comfortable for extended durations without any discomfort.

Daylight

In Boynton Beach, the average length of the day in September is 12h and 18min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:39 pm. On the last day of September, in Boynton Beach, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

Sunshine

In September, the average sunshine in Boynton Beach, Florida, is 8.9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be on guard! The reflective nature of sand and water boosts UV exposure.