August weather forecastHarahan, LA
August
Weather in August
The last month of the summer, August, is also a hot month in Harahan, Louisiana, with an average temperature ranging between max 88.7°F (31.5°C) and min 77.9°F (25.5°C).Temperature
The transition from July to August brings an average high-temperature of a still tropical 88.7°F (31.5°C), barely different from July's 89.2°F (31.8°C). In Harahan, in August, the average low-temperature is a warm 77.9°F (25.5°C).Heat index
The heat index value during August is computed to be a blisteringly hot 105.8°F (41°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In Harahan, the average relative humidity in August is 75%.Rainfall
In August, the rain falls for 24.2 days. Throughout August, 5.35" (136mm) of precipitation is accumulated. In Harahan, during the entire year, the rain falls for 179.5 days and collects up to 37.4" (950mm) of precipitation.Snowfall
In Harahan, snow does not fall in February through December.Daylight
In August, the average length of the day is 13h and 11min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:53 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:24 pm CDT.
Sunshine
The average sunshine in August is 10.6h.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 threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 7 in August converts into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Harahan, LA
- Average high temperature in August: 88.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (60.3°F).
- Average low temperature in August: 77.9°F
The month with the highest average low temperature is August (77.9°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).
Average pressure in August
Harahan, 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, August and September (29.97"Hg).
Average wind speed in August
Harahan, LA
- Average wind speed in August: 6.3mph
The windiest months (with the highest average wind speed) are February and April (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in August
Harahan, LA
- Average humidity in August: 75%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Harahan, LA
- Average rainfall in August: 5.35"
The wettest month (with the highest rainfall) is July (5.94").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days in August
Harahan, LA
- Average rainfall days in August: 24.2 days
The month with the highest number of rainy days is August (24.2 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in August
Harahan, LA
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.04").
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
Harahan, LA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Harahan, LA
- Average daylight in August: 13h and 12min
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 36min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in August
Harahan, LA
- Average sunshine days in August: 5.3 days
The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are July and August (5.3 days).
Average UV index in August
Harahan, LA
- 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, November and December (UV index 4).
Average cloud cover in August
Harahan, LA
- Average cloud cover in August: 28
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 25).
Average visibility in August
Harahan, 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).





