Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average sea temperature in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
In Mandeville, the month of August registers the highest temperatures, averaging 91°F (32.8°C) at the peak and 76.8°F (24.9°C) at the lowest.Heat index
The average heat index in August is calculated to be a burning hot 113°F (45°C). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.Remember that heat index calculations are made for conditions in the shade with light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In August, the average relative humidity in Mandeville, Louisiana, is 74%.Rainfall
The month with the most rainfall is August, when the rain falls for 23.8 days and typically aggregates up to 6.73" (171mm) of precipitation.Snowfall
In Mandeville, Louisiana, snow does not fall in February through December.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 86.4°F (30.2°C).Note: For swimming, other intense water activities, temperature above 86°F (30°C) is arguably unpleasant, as the water cooling effect is missing.
Daylight
In Mandeville, the average length of the day in August is 13h and 13min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:53 pm. On the last day of August, sunrise is at 6:36 am and sunset at 7:23 pm CDT.
Sunshine
In August, the average sunshine is 10.7h.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 threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 7 during August, leads to the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be attentive! The UV exposure is heightened with reflections from sand and water.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
How hot is it in August?
What is the average humidity in August in Mandeville?
What is the rainiest month?
How much does it rain in August?
When it does not snow?
What is the month with the warmest ocean?
What is the ocean temperature in August?
What is the average length of the day in August?
What time are sunrise and sunset in August in Mandeville?
How long on average sun shines in August?
When is the highest UV index?
What is the UV index reading in August?
Average temperature in August
Mandeville, LA
- Average high temperature in August: 91°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in August: 76.8°F
The months with the highest average low temperature are July and August (76.8°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).
Average pressure in August
Mandeville, LA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in August
Mandeville, LA
- Average wind speed in August: 5.4mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in August
Mandeville, LA
- Average humidity in August: 74%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Mandeville, LA
- Average rainfall in August: 6.73"
The wettest month (with the highest rainfall) is August (6.73").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in August
Mandeville, LA
- Average rainfall days in August: 23.8 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in August
Mandeville, LA
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Mandeville, LA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in August
Mandeville, LA
- Average sea temperature in August: 86.4°F
The best month for swimming (with the highest average sea temperature) is August (86.4°F).
The coldest month (with the lowest average sea temperature) is January (56.6°F).
Average daylight in August /
Average sunshine in August
Mandeville, LA
- Average daylight in August: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in August: 10h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in August
Mandeville, LA
- Average sunshine days in August: 5.6 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (5.6 days).
Average UV index in August
Mandeville, LA
- 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 December (UV index 3).
Average cloud cover in August
Mandeville, LA
- Average cloud cover in August: 29
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in August
Mandeville, LA
- 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).
Mandeville, Louisiana, USA
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