September weather forecast
Delray Beach, FL

September retains some of Delray Beach, Florida's summer heat but marks the beginning of a decline. The rainfall inches down from its August peak to a slightly lower 6.93in, ushering in more agreeable weather patterns. Despite the temperature shift, the sea remains warm encouraging tourist activities. Even though October looms with cooler forecasts, September manages to uphold the summer remnants.

Temperature

September's commencement is accompanied by an average high-temperature of a warm 85.1°F (29.5°C), diverging marginally from August's 86.9°F (30.5°C). Delray Beach experiences a steady nighttime temperature of 80.1°F (26.7°C) throughout the month of September.

Heat index

September's average heat index is calculated to be a torrid 95°F (35°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Note that heat index values are valued for light wind and location in the shade. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

June, September and December, with an average relative humidity of 75%, are the most humid months.

Rainfall

In September, the rain falls for 26.5 days. Throughout September, 6.93" (176mm) of precipitation is accumulated. In Delray Beach, during the entire year, the rain falls for 229 days and collects up to 46.46" (1180mm) of precipitation.

Ocean temperature

In Delray Beach, the average seawater temperature in September is 85.1°F (29.5°C).
Note: Water activities including swimming and diving are pleasurable in temperatures between 77°F (25°C) and 84.2°F (29°C), ensuring comfort and enjoyment for extended time frames.

Daylight

In September, the average length of the day 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, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

Sunshine

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

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Delray Beach. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 during September translates into the following guidance:
Take precautions against overexposure. Protection against sun damage is needed. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.