August weather forecastDeerfield Beach, FL

August
Weather in August
August continues the tropical rhythm of Deerfield Beach, Florida, with similar temperature and humidity values as those of July. However, rainfall peaks in August with an average accumulation of 8.35" (212mm) - the highest for the year. With weather characterized by tropical showers and warm sunny intervals, the city offers a unique blend of summer experiences. The warm sea temperatures coupled with ample sunshine create ideal conditions for water sports and beach activities. Despite the intermittent showers, August's weather does not dampen the city's energetic summer vibes.Temperature
August, with average temperatures reaching a high of 87.1°F (30.6°C) and a low of 81.5°F (27.5°C), is the warmest month.Heat index
In August, the average heat index is estimated at a torrid 98.6°F (37°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The average relative humidity in August is 73%.Rainfall
August is the month with the most rainfall. Rain falls for 28 days and accumulates 8.35" (212mm) of precipitation.Ocean temperature
August is the month with the warmest seawater in Deerfield Beach, with an average ocean temperature of 86.4°F (30.2°C).Note: Engaging in water activities in temperatures beyond 86°F (30°C) might not feel as reinvigorating.
Daylight
In August, the average length of the day is 13h and 2min.On the first day of the month, sunrise is at 6:46 am and sunset at 8:07 pm. On the last day of August, in Deerfield Beach, sunrise is at 7:00 am and sunset at 7:40 pm EDT.
Sunshine
In August, the average sunshine is 10.8h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 7 in August translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Heed this! UV intensity is much stronger when reflected off sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Deerfield Beach, FL
- Average high temperature in August: 87.1°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (72.5°F).
- Average low temperature in August: 81.5°F
The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).
Average pressure in August
Deerfield Beach, FL
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in August
Deerfield Beach, FL
- Average wind speed in August: 8.2mph
The windiest month (with the highest average wind speed) is March (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in August
Deerfield Beach, FL
- Average humidity in August: 73%
The months with the highest relative humidity are June and December (75%).
The month with the lowest relative humidity is March (70%).
Average rainfall in August
Deerfield Beach, FL
- Average rainfall in August: 8.35"
The wettest month (with the highest rainfall) is August (8.35").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in August
Deerfield Beach, FL
- Average rainfall days in August: 28 days
The month with the highest number of rainy days is August (28 days).
The month with the least rainy days is February (13 days).
Average sea temperature in August
Deerfield Beach, FL
- Average sea temperature in August: 86.3°F
The best month for swimming (with the highest average sea temperature) is August (86.3°F).
The coldest months (with the lowest average sea temperature) are January and February (74.2°F).
Average daylight in August /
Average sunshine in August
Deerfield Beach, FL
- Average daylight in August: 13h and 0min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in August: 10h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 12min).
Average sunshine days in August
Deerfield Beach, FL
- Average sunshine days in August: 1.7 days
The month with the most sunshine days is March (12.1 days).
The months with the least sunshine days are July and August (1.7 days).
Average UV index in August
Deerfield Beach, FL
- Average UV index in August: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in August
Deerfield Beach, FL
- Average cloud cover in August: 29
The month with the most cloud cover is October (Cloud cover 36).
The months with the least cloud cover are April and July (Cloud cover 28).
Average visibility in August
Deerfield Beach, FL
- Average visibility in August: 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).





