August weather forecastPortland, TX
August
Weather in August
August, the last month of the summer in Portland, is also a hot month, with an average temperature varying between 90.9°F (32.7°C) and 80.8°F (27.1°C).Temperature
Temperature records mark August as the warmest month, with highs averaging 90.9°F (32.7°C) and lows at 80.8°F (27.1°C).Heat index
The average heat index in August is appraised at a blistering 109.4°F (43°C). Take caution: Heat exhaustion and heat cramps are probable. Heatstroke may be imminent with ongoing effort.Heat index details are generally centered around shaded locations and a mild breeze. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
August and October, with an average relative humidity of 71%, are the least humid months.Rainfall
In August, in Portland, the rain falls for 10.1 days. Throughout August, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 126.7 rainfall days, and 13.78" (350mm) of precipitation is accumulated.Snowfall
January, March through November are months without snowfall in Portland.Daylight
The average length of the day in August in Portland, Texas, is 13h and 6min.On the first day of the month, sunrise is at 6:52 am and sunset at 8:18 pm. On the last day of August, in Portland, sunrise is at 7:07 am and sunset at 7:50 pm CDT.
Sunshine
In August, the average sunshine is 10.5h.UV index
The months with the highest UV index in Portland, Texas, are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 7 in August translates into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Portland, TX
- 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 (63.7°F).
- Average low temperature in August: 80.8°F
The month with the highest average low temperature is August (80.8°F).
The coldest month (with the lowest average low temperature) is January (52.3°F).
Average pressure in August
Portland, TX
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.89"Hg).
Average wind speed in August
Portland, TX
- Average wind speed in August: 10.5mph
The windiest month (with the highest average wind speed) is May (12.6mph).
The calmest month (with the lowest average wind speed) is September (9.6mph).
Average humidity in August
Portland, TX
- Average humidity in August: 71%
The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are August and October (71%).
Average rainfall in August
Portland, TX
- Average rainfall in August: 0.94"
The wettest month (with the highest rainfall) is September (2.64").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in August
Portland, TX
- Average rainfall days in August: 10.1 days
The month with the highest number of rainy days is September (17.9 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in August
Portland, TX
- Average snowfall in August: 0"
The months with the highest snowfall are February and December (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Portland, TX
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Portland, TX
- Average daylight in August: 13h and 6min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in August: 10h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in August
Portland, TX
- Average sunshine days in August: 18.1 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is September (10.4 days).
Average UV index in August
Portland, TX
- 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 and December (UV index 4).
Average cloud cover in August
Portland, TX
- Average cloud cover in August: 20
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in August
Portland, 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).
