August weather forecastSouth Pasadena, CA
August
Weather in August
The last month of the summer, August, is a hot month in South Pasadena, California, with an average temperature ranging between max 86.7°F (30.4°C) and min 65.7°F (18.7°C).Temperature
In South Pasadena, August is the month with the highest recorded average temperatures, measuring a high of 86.7°F (30.4°C) and a low of 65.7°F (18.7°C).Heat index
The heat index in August is evaluated at a tropical 89.6°F (32°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. 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 primarily vital for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The average relative humidity in August is 51%.Rainfall
In South Pasadena, in August, it is raining for 1.3 days, with typically 0.08" (2mm) of accumulated precipitation. In South Pasadena, during the entire year, the rain falls for 49.2 days and collects up to 8.23" (209mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
The average length of the day in August is 13h and 23min.On the first day of the month, sunrise is at 6:04 am and sunset at 7:53 pm. On the last day of August, in South Pasadena, sunrise is at 6:26 am and sunset at 7:19 pm PDT.
Sunshine
In August, the average sunshine is 12h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In August, the maximum UV index of 6 suggests these recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
South Pasadena, CA
- Average high temperature in August: 86.7°F
The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is August (65.7°F).
The coldest months (with the lowest average low temperature) are February and December (47.8°F).
Average pressure in August
South Pasadena, CA
- Average pressure in August: 29.89"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
South Pasadena, CA
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in August
South Pasadena, CA
- Average humidity in August: 51%
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).
Average rainfall in August
South Pasadena, CA
- Average rainfall in August: 0.08"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in August
South Pasadena, CA
- Average rainfall days in August: 1.3 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1 days).
Average snowfall days in August
South Pasadena, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
South Pasadena, CA
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in August
South Pasadena, CA
- Average sunshine days in August: 28.3 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (21 days).
Average UV index in August
South Pasadena, CA
- Average UV index in August: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in August
South Pasadena, CA
- Average cloud cover in August: 4
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in August
South Pasadena, CA
- 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).
