July weather forecastSimi Valley, CA
July
Weather in July
July, the same as June, is another warm summer month in Simi Valley, California, with an average temperature fluctuating between 61.9°F (16.6°C) and 80.8°F (27.1°C).Temperature
July's average high-temperature stands at a still moderately hot 80.8°F (27.1°C), showing little deviation from June's 75.6°F (24.2°C). Simi Valley's average low-temperature in the month of July is recorded at a comfortable 61.9°F (16.6°C).Heat index
In July, the heat index is calculated to be 82.4°F (28°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In July, the average relative humidity is 59%.Rainfall
In Simi Valley, during July, the rain falls for 3.7 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, there are 53.7 rainfall days, and 9.61" (244mm) of precipitation is accumulated.Daylight
The average length of the day in July is 14h and 11min.On the first day of July, sunrise is at 5:47 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:57 pm PDT.
Sunshine
The months with the most sunshine are June and July, with an average of 12.1h of sunshine.UV index
The months with the highest UV index in Simi Valley are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 6 during July, leads to the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Simi Valley, CA
- Average high temperature in July: 80.8°F
The warmest month (with the highest average high temperature) is August (82.2°F).
The month with the lowest average high temperature is December (60.1°F).
- Average low temperature in July: 61.9°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (46.4°F).
Average pressure in July
Simi Valley, CA
- Average pressure in July: 29.92"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in July
Simi Valley, CA
- Average wind speed in July: 4.6mph
The windiest month (with the highest average wind speed) is December (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in July
Simi Valley, CA
- Average humidity in July: 59%
The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (50%).
Average rainfall in July
Simi Valley, CA
- Average rainfall in July: 0.24"
The wettest month (with the highest rainfall) is February (1.93").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in July
Simi Valley, CA
- Average rainfall days in July: 3.7 days
The month with the highest number of rainy days is March (8 days).
The months with the least rainy days are June and August (1.5 days).
Average daylight in July /
Average sunshine in July
Simi Valley, CA
- Average daylight in July: 14h and 12min
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 July: 12h and 6min
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 July
Simi Valley, CA
- Average sunshine days in July: 23.3 days
The month with the most sunshine days is August (25.4 days).
The month with the least sunshine days is February (20.9 days).
Average UV index in July
Simi Valley, CA
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in July
Simi Valley, CA
- Average cloud cover in July: 7
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in July
Simi Valley, 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).
