August weather forecast
Altoona, FL

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Weather in August

The last month of the summer, August, is also a hot month in Altoona, Florida, with an average temperature varying between 75.7°F (24.3°C) and 90.9°F (32.7°C).

Temperature

In Altoona, August is the warmest month, with temperatures averaging a high of 90.9°F (32.7°C) and a low of 75.7°F (24.3°C).

Heat index

The average heat index in August is computed to be a life-threatening hot 114.8°F (46°C). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
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 effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The months with the highest humidity are July through September, with an average relative humidity of 78%.

Rainfall

In Altoona, in August, during 26.7 rainfall days, 5.51" (140mm) of precipitation is typically accumulated. Throughout the year, in Altoona, there are 193.1 rainfall days, and 35.71" (907mm) of precipitation is accumulated.

Daylight

In Altoona, the average length of the day in August is 13h and 9min.
On the first day of the month, sunrise is at 6:47 am and sunset at 8:17 pm. On the last day of August, sunrise is at 7:04 am and sunset at 7:49 pm EDT.

Sunshine

In Altoona, the average sunshine in August is 10.1h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 during August translates into the following guidance:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month in Altoona?

August is the warmest month in Altoona, with the temperature often reaching an average high of 90.9°F (32.7°C) and an average low of 75.7°F (24.3°C).

How hot is it in Altoona in August?

August temperatures vary between a high-temperature of 90.9°F (32.7°C) and a low-temperature of 75.7°F (24.3°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 114.8°F (46°C).

What is the most humid month in Altoona?

July through September, with an average relative humidity of 78%, are most humid months in Altoona, Florida.

What is the average humidity in August in Altoona?

In August, the average relative humidity in Altoona is 78%.

How many days does it rain in August in Altoona?

In Altoona, Florida, in August, it is raining for 26.7 days, with typically 5.51" (140mm) of accumulated precipitation.

What is the average length of the day in August in Altoona?

In Altoona, the average day length in August is 13h and 9min.

When are sunrise and sunset in August in Altoona?

In August, on the first day of the month, sunrise is at 6:47 am and sunset at 8:17 pm. On the last day of the month, in Altoona, Florida, sunrise is at 7:04 am and sunset at 7:49 pm EDT.

How long on average sun shines in August in Altoona?

In August, the average sunshine duration in Altoona is 10.1h.

When is the highest UV index in Altoona?

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

What is the UV index reading in August in Altoona?

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

Average temperature in August
Altoona, FL

Average temperature in August - Altoona, FL
  • Average high temperature in August: 90.9°F

The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (67.5°F).

  • Average low temperature in August: 75.7°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (49.5°F).

Average pressure in August
Altoona, FL

Average pressure in August - Altoona, FL
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

Average wind speed in August
Altoona, FL

Average wind speed in August - Altoona, FL
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity in August
Altoona, FL

Average humidity in August - Altoona, FL
  • Average humidity in August: 78%

The months with the highest relative humidity are July, August and September (78%).
The month with the lowest relative humidity is March (71%).

Average rainfall in August
Altoona, FL

Average rainfall in August - Altoona, FL
  • Average rainfall in August: 5.51"

The wettest month (with the highest rainfall) is July (5.91").
The driest months (with the least rainfall) are March and November (1.26").

Average rainfall days in August
Altoona, FL

Average rainfall days in August - Altoona, FL
  • Average rainfall days in August: 26.7 days

The month with the highest number of rainy days is July (26.9 days).
The month with the least rainy days is January (9.2 days).

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

Average daylight in August / Average sunshine in August - Altoona, FL
  • 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: 10h and 1min

The months with the most sunshine are May and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

Average sunshine days in August
Altoona, FL

Average sunshine days in August - Altoona, FL
  • Average sunshine days in August: 2.1 days

The month with the most sunshine days is January (19 days).
The month with the least sunshine days is August (2.1 days).

Average UV index in August
Altoona, FL

Average UV index in August - Altoona, FL
  • 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 4).

Average cloud cover in August
Altoona, FL

Average cloud cover in August - Altoona, FL
  • Average cloud cover in August: 32

The months with the most cloud cover are February and December (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 29).

Average visibility in August
Altoona, FL

Average visibility in August - Altoona, 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).

Altoona, Florida, USA

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