August weather forecast
Melbourne, FL

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A long pier and sun shed on the Indian River in Melbourne, Florida
A long pier and sun shed on the Indian River in Melbourne, Florida

Weather in August

The last month of the summer, August, is another tropical month in Melbourne, Florida, with an average temperature fluctuating between 78.8°F (26°C) and 87.3°F (30.7°C).

Temperature

August temperatures tend to peak at an average high of 87.3°F (30.7°C) and dip to a low of 78.8°F (26°C).

Heat index

August's mean heat index is evaluated at an extremely hot 104°F (40°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

August is the most humid month in Melbourne, with an average relative humidity of 80%.

Rainfall

The month with the most rainfall in Melbourne is August, when the rain falls for 23.3 days and typically aggregates up to 4.29" (109mm) of precipitation.

Ocean temperature

With an average ocean temperature of 84.7°F (29.3°C), August is the month with the warmest seawater.
Note: Surface water temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as ideal and highly pleasant for extended enjoyment in all water activities.

Daylight

In August, the average length of the day is 13h and 7min.
On the first day of the month, sunrise is at 6:45 am and sunset at 8:12 pm. On the last day of August, in Melbourne, sunrise is at 7:00 am and sunset at 7:44 pm EDT.

Sunshine

In Melbourne, Florida, the average sunshine in August is 10.8h.

UV index

The months with the highest UV index in Melbourne are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 during August translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take note! The UV strength of the Sun elevates when reflected off water and sand.
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Frequently asked questions

What is the warmest month in Melbourne?

In Melbourne, the peak temperatures are generally noted in August, averaging a high of 87.3°F (30.7°C) and a low of 78.8°F (26°C).

How hot is it in Melbourne in August?

The average high-temperature and low-temperature in Melbourne, Florida, during August are 87.3°F (30.7°C) and 78.8°F (26°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is evaluated at 104°F (40°C).

What is the most humid month in Melbourne?

The most humid month in Melbourne, Florida, is August, with an average relative humidity of 80%.

What is the average humidity in August in Melbourne?

In Melbourne, the average relative humidity in August is 80%.

What is the rainiest month in Melbourne?

The month with the most rainfall is August, when the rain falls for 23.3 days and typically aggregates up to 4.29" (109mm) of precipitation.

How many days does it rain in August in Melbourne?

In Melbourne, in August, during 23.3 rainfall days, 4.29" (109mm) of precipitation is typically accumulated.

What month is the ocean warmest in Melbourne?

The month with the warmest seawater is August, with an average ocean temperature of 84.7°F (29.3°C).

What is the ocean temperature in August in Melbourne?

In Melbourne, Florida, in August, the average water temperature is 84.7°F (29.3°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Melbourne have in August?

The average day length in August in Melbourne is 13h and 7min.

When is the sunrise / sunset in August in Melbourne?

In August, on the first day of the month, sunrise is at 6:45 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 7:44 pm EDT.

How many hours of sunshine does Melbourne have in August?

In Melbourne, the average sunshine duration in August is 10.8h.

What are the months with the highest UV index in Melbourne?

The months with the highest UV index are May through September, with an average maximum UV index of 7.

What is the UV index intensity in August in Melbourne?

In August, the average daily maximum UV index in Melbourne is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.

Average temperature in August
Melbourne, FL

Average temperature in August - Melbourne, FL
  • Average high temperature in August: 87.3°F

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is January (69.3°F).

  • Average low temperature in August: 78.8°F

The month with the highest average low temperature is August (78.8°F).
The coldest month (with the lowest average low temperature) is January (58.6°F).

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Average pressure in August
Melbourne, FL

Average pressure in August - Melbourne, FL
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in August
Melbourne, FL

Average wind speed in August - Melbourne, FL
  • Average wind speed in August: 7.1mph

The windiest month (with the highest average wind speed) is November (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in August
Melbourne, FL

Average humidity in August - Melbourne, FL
  • Average humidity in August: 80%

The month with the highest relative humidity is August (80%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in August
Melbourne, FL

Average rainfall in August - Melbourne, FL
  • Average rainfall in August: 4.29"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is February (0.59").

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Average rainfall days in August
Melbourne, FL

Average rainfall days in August - Melbourne, FL
  • Average rainfall days in August: 23.3 days

The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is February (8.2 days).

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Average sea temperature in August
Melbourne, FL

Average sea temperature in August - Melbourne, FL
  • Average sea temperature in August: 84.7°F

The best month for swimming (with the highest average sea temperature) is August (84.7°F).
The coldest month (with the lowest average sea temperature) is January (71.4°F).

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Average daylight in August /
Average sunshine in August
Melbourne, FL

Average daylight in August / Average sunshine in August - Melbourne, FL
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in August: 10h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).

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Average sunshine days in August
Melbourne, FL

Average sunshine days in August - Melbourne, FL
  • Average sunshine days in August: 4.7 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is August (4.7 days).

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Average UV index in August
Melbourne, FL

Average UV index in August - Melbourne, 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 months with the lowest UV index are January, February and December (UV index 5).

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Average cloud cover in August
Melbourne, FL

Average cloud cover in August - Melbourne, FL
  • Average cloud cover in August: 27

The months with the most cloud cover are November and December (Cloud cover 34).
The months with the least cloud cover are April and May (Cloud cover 26).

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Average visibility in August
Melbourne, FL

Average visibility in August - Melbourne, 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).

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Melbourne, Florida, USA

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