August weather forecast
Surfside, FL

August, the last month of the summer in Surfside, is also a hot month, with temperature in the range of an average low of 82°F (27.8°C) and an average high of 88°F (31.1°C).

Temperature

Surfside's August weather, marked by an average high temperature of 88°F (31.1°C) and an average low temperature of 82°F (27.8°C), is the warmest in the year.

Heat index

August's average heat index is calculated to be a fiery hot 100.4°F (38°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In August, the average relative humidity in Surfside is 71%.

Rainfall

August is the month with the most rainfall. Rain falls for 20.3 days and accumulates 2.2" (56mm) of precipitation.

Ocean temperature

With an average ocean temperature of 86.5°F (30.3°C), August is the month with the warmest seawater.
Note: Many feel that waters warmer than 86°F (30°C) fail to offer the same rejuvenating touch.

Daylight

The average length of the day in August is 13h and 1min.
On the first day of August in Surfside, Florida, sunrise is at 6:47 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 7:40 pm EDT.

Sunshine

In Surfside, the average sunshine in August is 10.7h.

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 risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 7 during August translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heed this! UV intensity is much stronger when reflected off sand and water.