Castaic (CA) Weather and Climate: A Comprehensive Guide
The temperature in Castaic can vary greatly throughout the year.
The temperatures shift from very warm
to mild.
It maintains relatively low levels of precipitation throughout the seasons.
Let's now guide you through the climate details for a complete overview.
Average maximum day and minimum night temperature
Depending on the time of the year, temperatures range from very warm to moderate in Castaic. On average, daytime temperatures range from a very warm 35°C in August to a moderate 18°C in December.
Nighttime temperatures can drop, with average lows reaching 6°C in December. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Castaic has a relatively dry climate with low precipitation, averaging 285 mm of rainfall annually. The seasons in Castaic, bring significant changes in precipitation. The wettest month, December, receives moderate rainfall, with an average of 63 mm of precipitation. This rainfall is distributed across 8 rainy days. In contrast, the driest month, June, experiences much less rainfall, totaling 0.1 mm over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Castaic Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In Castaic, summer days are longer and more sunny, with daily sunshine hours peaking at 12.1 hours in July. As the darker season arrives, the brightness of the sun becomes less. November sees a soft sun for only 7.2 hours per average day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is high throughout the year in Castaic.
The city experiences its highest humidity in May, reaching 73%. In November, the humidity drops to its lowest level at 50%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
partly cloudy and no rain broken clouds and no rain clear and no rainForecast for Castaic (CA)
4 m/s
4 m/s
2 m/s
The best time of year to visit Castaic in the United States of America
During the months of March, April and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
August has an average maximum temperature of 35°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 18°C.
December tops the wettest month list with 63 mm of rainfall.
June is the driest month with 0 mm of precipitation.
July is the sunniest month with an average of 364 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
