July weather forecastCastaic, CA
July
Weather in July
July is a hot summer month in Castaic, California, with an average temperature ranging between min 63°F (17.2°C) and max 87.3°F (30.7°C).Temperature
Castaic's transition into July brings a slight rise in the average high-temperature, moving from a warm 81.7°F (27.6°C) in June to a hot 87.3°F (30.7°C). Marked by a significant temperature drop from daytime highs, the average nighttime temperature in Castaic lowers to a refreshing 63°F (17.2°C) throughout July.Heat index
Throughout July, the heat index is evaluated at a hot 89.6°F (32°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In July, the average relative humidity is 48%.Rainfall
In Castaic, in July, during 2.2 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. In Castaic, during the entire year, the rain falls for 42.2 days and collects up to 6.77" (172mm) of precipitation.Daylight
In Castaic, the average length of the day in July is 14h and 12min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:11 pm. On the last day of July, sunrise is at 6:04 am and sunset at 7:56 pm PDT.
Sunshine
June and July, with an average of 12.1h of sunshine, are months with the most sunshine in Castaic.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 6 in July translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Castaic, CA
- Average high temperature in July: 87.3°F
The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (59.5°F).
- Average low temperature in July: 63°F
The month with the highest average low temperature is August (63.7°F).
The coldest month (with the lowest average low temperature) is December (42.3°F).
Average pressure in July
Castaic, CA
- Average pressure in July: 29.91"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in July
Castaic, CA
- Average wind speed in July: 5.1mph
The windiest months (with the highest average wind speed) are January and December (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in July
Castaic, CA
- Average humidity in July: 48%
The month with the highest relative humidity is March (56%).
The months with the lowest relative humidity are August and October (43%).
Average rainfall in July
Castaic, CA
- Average rainfall in July: 0.08"
The wettest month (with the highest rainfall) is December (1.42").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in July
Castaic, CA
- Average rainfall days in July: 2.2 days
The month with the highest number of rainy days is March (6.9 days).
The month with the least rainy days is June (0.7 days).
Average daylight in July /
Average sunshine in July
Castaic, 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 month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in July
Castaic, CA
- Average sunshine days in July: 27.2 days
The month with the most sunshine days is August (28.7 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in July
Castaic, CA
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in July
Castaic, CA
- Average cloud cover in July: 6
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in July
Castaic, 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).
