What causes 'June gloom' in Santa Monica?

Not an expert but I've lived in SM for two decades, As I understand it, onshore breezes drive warm, moist air along the cold, hilly strip of coast from Malibu to Santa Monica, causing the moisture to form clouds. read more

Just when you'd expect the weather to be at its summery best, it isn't. In fact, May and June are the cloudiest months of the year along the California coast. During those months it may only be sunny about half the time. What Causes June Gloom. In simple, terms June Gloom means it's cloudy, overcast, and cool near the ocean. read more