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What's Up With Costal Southern California VS Inland Southern California?

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Is this huge difference in tempatures in Coastal Southern California and Inland Southern California from the ocean and the mountains? How high are these mountains? Every time I look at a tempature map of the U.S. I see how much cooler it is in Coastal California than Inland California, which I know is a desert. Does Coastal California ever seem chilly out at some times around this time of year? Out of curiosity I sometimes compare tempatures of here and places like San Diego or Los Angeles and a lot of the time it is warmer here (during the day) in the Spring time. For people who live in these places, what does it feel like out? It looks like Southern California has all kinds of different little (but bigger than micro) climates. I make sure to pay attention to the time difference as well. 

I apologize for the typo in the title, I didn't notice it. 


SmartSelect_20190515-212412_The Weather Channel.jpg

Edited by PalmTreeDude

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Chris Chance

Really the ocean has a lot to do with that. Closer to the ocean the cooler and more mild it gets. Basically if you're within 30 miles or so depending on mountains and current you would get an influence from the sea. I'm pretty far inland myself but I still get an influence. If I head east even 10 miles there's a big difference in climate. 

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That pretty well sums it up.  The hills and mountains create a big blocking factor.  Even hills a few hundred feet high can block and channel cool ocean breezes.  The pockets behind those hills can be a lot warmer.  

I am 6 miles from the coast.   I get a fair amount of ocean influence but am blocked by a set of coastal hills.  Irvine is further inland but the flat terrain there often times allows for cooler temps than where I live.  San Juan Capistrano also has some very distinct features like this.

On a less dramatic level, elevation can play a role too.  

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