August weather forecastKemah, TX
August
Weather in August
August, the last month of the summer in Kemah, is another tropical month, with temperature in the range of an average low of 79.7°F (26.5°C) and an average high of 90.5°F (32.5°C).Temperature
August stands out as Kemah's warmest month, with an average high-temperature of 90.5°F (32.5°C) and a low-temperature of 79.7°F (26.5°C).Heat index
August's average heat index is computed to be a scorching 109.4°F (43°C). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. 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 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
The average relative humidity in August is 73%.Rainfall
In August, the rain falls for 15.8 days. Throughout August, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in Kemah, there are 122.9 rainfall days, and 9.72" (247mm) of precipitation is accumulated.Snowfall
In Kemah, snow does not fall in February through August, October and November.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 87.3°F (30.7°C).Note: For a refreshing experience, many might avoid waters that are hotter than 86°F (30°C).
Daylight
In Kemah, the average length of the day in August is 13h and 10min.On the first day of August, sunrise is at 6:40 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 7:42 pm CDT.
Sunshine
July and August, with an average of 10.7h of sunshine, are months with the most sunshine.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 unprotected exposure to Sun's UV rays for the ordinary person.Note: In August, the maximum UV index of 7 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Kemah, TX
- Average high temperature in August: 90.5°F
The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in August: 79.7°F
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).
Average pressure in August
Kemah, TX
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Kemah, TX
- Average wind speed in August: 7.6mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).
Average humidity in August
Kemah, TX
- Average humidity in August: 73%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Kemah, TX
- Average rainfall in August: 1.3"
The wettest month (with the highest rainfall) is September (1.5").
The driest months (with the least rainfall) are February and March (0.31").
Average rainfall days in August
Kemah, TX
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is September (15.9 days).
The month with the least rainy days is February (6.3 days).
Average snowfall days in August
Kemah, TX
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January, September and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).
Average sea temperature in August
Kemah, TX
- Average sea temperature in August: 87.2°F
The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (56.8°F).
Average daylight in August /
Average sunshine in August
Kemah, TX
- 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 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in August
Kemah, TX
- Average sunshine days in August: 11.2 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is September (10.3 days).
Average UV index in August
Kemah, TX
- 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
Kemah, TX
- Average cloud cover in August: 26
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in August
Kemah, TX
- 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).





