August weather forecast
O'Brien, FL

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Weather in August

The last month of the summer, August, is also a hot month in O'Brien, Florida, with an average temperature varying between 74.8°F (23.8°C) and 91.2°F (32.9°C).

Temperature

July and August represent the warmest period, with an average high-temperature of 91.2°F (32.9°C).

Heat index

The heat index value during August is estimated at a blazing hot 114.8°F (46°C). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

August and September, with an average relative humidity of 77%, are the most humid months in O'Brien.

Rainfall

The month with the most rainfall is August, when the rain falls for 25.4 days and typically aggregates up to 4.53" (115mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

In O'Brien, the average length of the day in August is 13h and 12min.
On the first day of the month, sunrise is at 6:51 am and sunset at 8:24 pm. On the last day of August, sunrise is at 7:08 am and sunset at 7:55 pm EDT.

Sunshine

In O'Brien, the average sunshine in August is 9.5h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 7 in August interprets into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

In O'Brien, the months of July and August register the average highest temperatures, peaking at 91.2°F (32.9°C).

How hot does it get in August?

In O'Brien, in August, the average high-temperature is 91.2°F (32.9°C), and the average low-temperature is 74.8°F (23.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is estimated at 114.8°F (46°C).

What are the most humid months?

The months with the highest humidity are August and September, with an average relative humidity of 77%.

What is the average humidity in August?

The average relative humidity in August is 77%.

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 25.4 days and typically aggregates up to 4.53" (115mm) of precipitation.

How many days does it rain in August?

In O'Brien, in August, it is raining for 25.4 days, with typically 4.53" (115mm) of accumulated precipitation.

When it does not snow?

January, March through December are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 12min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:51 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 7:55 pm EDT.

How long on average sun shines in August?

In O'Brien, the average sunshine duration in August is 9.5h.

When is the highest UV index?

May through August, with an average maximum UV index of 7, are months with the highest UV index in O'Brien, Florida.

How high is the UV index in August?

In O'Brien, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
O'Brien, FL

Average temperature in August - O
  • Average high temperature in August: 91.2°F

The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (62.2°F).

  • Average low temperature in August: 74.8°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

Average pressure in August
O'Brien, FL

Average pressure in August - O
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).

Average wind speed in August
O'Brien, FL

Average wind speed in August - O
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in August
O'Brien, FL

Average humidity in August - O
  • Average humidity in August: 77%

The months with the highest relative humidity are August and September (77%).
The month with the lowest relative humidity is May (70%).

Average rainfall in August
O'Brien, FL

Average rainfall in August - O
  • Average rainfall in August: 4.53"

The wettest month (with the highest rainfall) is August (4.53").
The driest month (with the least rainfall) is November (0.98").

Average rainfall days in August
O'Brien, FL

Average rainfall days in August - O
  • Average rainfall days in August: 25.4 days

The month with the highest number of rainy days is August (25.4 days).
The month with the least rainy days is November (7.1 days).

Average snowfall days in August
O'Brien, FL

Average snowfall days in August - O
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in August /
Average sunshine in August
O'Brien, FL

Average daylight in August / Average sunshine in August - O
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in August: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in August
O'Brien, FL

Average sunshine days in August - O
  • Average sunshine days in August: 4.2 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (4.2 days).

Average UV index in August
O'Brien, FL

Average UV index in August - O
  • Average UV index in August: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in August
O'Brien, FL

Average cloud cover in August - O
  • Average cloud cover in August: 33

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are May and October (Cloud cover 30).

Average visibility in August
O'Brien, FL

Average visibility in August - O
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).

O'Brien, Florida, USA

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