July weather forecastJamacha, CA
July
Weather in July
July, the same as June, is a moderately hot summer month in Jamacha, California, with an average temperature fluctuating between 64.6°F (18.1°C) and 82°F (27.8°C).Temperature
July observes an average high-temperature of a still moderately hot 82°F (27.8°C), marking an insignificant difference from June's 77.5°F (25.3°C). Jamacha observes an average low-temperature of 64.6°F (18.1°C) during July nights.Heat index
For July, the heat index is calculated to be 84.2°F (29°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.Note that heat index values are valued for light wind and location in the shade. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
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. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
In Jamacha, the average relative humidity in July is 60%.Rainfall
In Jamacha, in July, it is raining for 5.8 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 60.6 rainfall days, and 8.66" (220mm) of precipitation is accumulated.Daylight
In July, the average length of the day is 14h and 4min.On the first day of July, sunrise is at 5:43 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:46 pm PDT.
Sunshine
The months with the most sunshine are June and July, with an average of 12.1h of sunshine.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 July, an average UV index of 6 transforms into the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Jamacha, CA
- Average high temperature in July: 82°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 July: 64.6°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 July
Jamacha, CA
- Average pressure in July: 29.9"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 July
Jamacha, CA
- Average wind speed in July: 4.7mph
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 July
Jamacha, CA
- Average humidity in July: 60%
The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is November (52%).
Average rainfall in July
Jamacha, CA
- Average rainfall in July: 0.51"
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 July
Jamacha, CA
- Average rainfall days in July: 5.8 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 July /
Average sunshine in July
Jamacha, CA
- Average daylight in July: 14h and 6min
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 July: 12h and 6min
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 July
Jamacha, CA
- Average sunshine days in July: 20.3 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 July
Jamacha, CA
- Average UV index in July: 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 July
Jamacha, CA
- Average cloud cover in July: 8
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 July
Jamacha, CA
- Average visibility in July: 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).





