August weather forecastSylmar, CA
August
Weather in August
August, the last month of the summer in Sylmar, is another warm month, with an average temperature ranging between min 64.9°F (18.3°C) and max 85.8°F (29.9°C).Temperature
Sylmar's temperatures tend to reach their peak averages in August, with a high of 85.8°F (29.9°C) and a low of 64.9°F (18.3°C).Heat index
Throughout August, the heat index is computed to be a hot 87.8°F (31°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Realize that the values for the heat index are set for shaded places and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
In Sylmar, the average relative humidity in August is 51%.Rainfall
In Sylmar, in August, during 1.2 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. In Sylmar, during the entire year, the rain falls for 39.8 days and collects up to 7.52" (191mm) of precipitation.Daylight
In August, the average length of the day is 13h and 23min.On the first day of August, sunrise is at 6:05 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:20 pm PDT.
Sunshine
The average sunshine in August 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 reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In August, the maximum UV index of 6 transforms into these recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sylmar, CA
- Average high temperature in August: 85.8°F
The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in August: 64.9°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).
Average pressure in August
Sylmar, CA
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Sylmar, CA
- Average wind speed in August: 4.7mph
The windiest months (with the highest average wind speed) are January and December (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in August
Sylmar, CA
- Average humidity in August: 51%
The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).
Average rainfall in August
Sylmar, CA
- Average rainfall in August: 0.08"
The wettest month (with the highest rainfall) is February (1.54").
The driest month (with the least rainfall) is June (0").
Average rainfall days in August
Sylmar, CA
- Average rainfall days in August: 1.2 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).
Average daylight in August /
Average sunshine in August
Sylmar, 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 48min).
Average sunshine days in August
Sylmar, CA
- Average sunshine days in August: 28.7 days
The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is February (22.9 days).
Average UV index in August
Sylmar, CA
- Average UV index in August: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in August
Sylmar, CA
- Average cloud cover in August: 4
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in August
Sylmar, 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).
