August weather forecastJamul, CA
August
Weather in August
August, the last month of the summer in Jamul, is another warm month, with an average temperature fluctuating between 66.2°F (19°C) and 84.2°F (29°C).Temperature
The average temperatures reach their apex in August, averaging 84.2°F (29°C) at the high end and 66.2°F (19°C) at the low end.Heat index
The heat index value for August is calculated to be a hot 87.8°F (31°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The average relative humidity in August in Jamul is 57%.Rainfall
In Jamul, during August, the rain falls for 4.3 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, there are 60.6 rainfall days, and 8.66" (220mm) of precipitation is accumulated.Daylight
In Jamul, the average length of the day in August is 13h and 19min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:45 pm. On the last day of August, in Jamul, California, sunrise is at 6:22 am and sunset at 7:12 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 in Jamul. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 6 in August transforms into the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Jamul, CA
- Average high temperature in August: 84.2°F
The warmest month (with the highest average high temperature) is August (84.2°F).
The month with the lowest average high temperature is December (63°F).
- Average low temperature in August: 66.2°F
The month with the highest average low temperature is August (66.2°F).
The coldest months (with the lowest average low temperature) are February and December (47.3°F).
Average pressure in August
Jamul, CA
- Average pressure in August: 29.88"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).
Average wind speed in August
Jamul, CA
- Average wind speed in August: 4.4mph
The windiest months (with the highest average wind speed) are April and May (5.5mph).
The calmest months (with the lowest average wind speed) are September and October (4.3mph).
Average humidity in August
Jamul, CA
- Average humidity in August: 57%
The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is November (52%).
Average rainfall in August
Jamul, CA
- Average rainfall in August: 0.47"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in August
Jamul, CA
- Average rainfall days in August: 4.3 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.3 days).
Average daylight in August /
Average sunshine in August
Jamul, CA
- Average daylight in August: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in August
Jamul, CA
- Average sunshine days in August: 21.8 days
The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is July (20.3 days).
Average UV index in August
Jamul, 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
Jamul, CA
- Average cloud cover in August: 6
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in August
Jamul, 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).
