August weather forecastJamacha, CA
August
Weather in August
August, the last month of the summer in Jamacha, is another warm month, with an average temperature fluctuating between 84.2°F (29°C) and 66.2°F (19°C).Temperature
August, characterized by an average high temperature of 84.2°F (29°C) and a low temperature of 66.2°F (19°C), is generally the warmest month.Heat index
During August, the heat index is calculated to be a tropical 87.8°F (31°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
The average relative humidity in August is 57%.Rainfall
In Jamacha, in August, during 4.3 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Jamacha, during the entire year, the rain falls for 60.6 days and collects up to 8.66" (220mm) of precipitation.Daylight
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, sunrise is at 6:22 am and sunset at 7:13 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 exposure to the Sun's UV rays for average individuals.Note: In August, the UV index of 6 transforms into the following advice:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Jamacha, 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
Jamacha, 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
Jamacha, 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
Jamacha, 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
Jamacha, 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
Jamacha, 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
Jamacha, 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
Jamacha, 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
Jamacha, 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
Jamacha, 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
Jamacha, 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).





