Marine Layer - How far inland? (San Diego, Long Beach: travel, work, business)

[chamy]

Curious as to how far inland one must live in order to avoid the marine layer? Is there an imaginary line that somebody could describe on a San Diego map?

Specifically, we are considering a move to Carlsbad. I understand it's considered coastal, but much of the town is east of the five and inland a few miles if I'm not mistaken. Is any part of Carlsbad outside the marine layer? Having lived in sunny climates, I'd like to avoid being socked in, but still be a short drive to the beach.

I've been reading these helpful boards for a while, but this is my first time participating. Thanks so much for any responses.

[kettlepot]

It really depends on the time of year, and how early in the day you want the marine layer to be gone, to consider yourself 'outside the marine layer.' Personally, I LOVE the marine layer and wish I could afford to live within it.

[jksouthbay88]

Most news stations use either the 163 or the 805 to state where it ends.

[tande1n5]

Not only is Carlsbad within the marine layer zone, the patch around Carlsbad/Oceanside/Pendleton is in a little bubble that is a lot foggier on the whole. La Jolla and Del Mar can see some really nice days that are still foggy in Carlsbad for some reason. You would avoid it better being along the I-15 corridor. Even so, some days I'll see it out in La Mesa, but not often enough for my liking...

[chamy]

Thanks for the feedback. Is the fog/marine layer consistent year round or heavier in particular months, non-exisant in other months?

[kettlepot]

In my observation, the marine layer is heaviest in May and June, (May Gray and June Gloom) and lightest in August, September, October, and April.

Almost every day starts out with a marine layer, If you wake up early on a summer morning and see blue sky, you know you're in for a SCORCHER of a day.

[sdurbanite]

Originally Posted by chamy

Curious as to how far inland one must live in order to avoid the marine layer? Is there an imaginary line that somebody could describe on a San Diego map?

I just asked my roommate (who has a meteorology degree) this question and he says it varies on the topography and the time of the year.

During the summer months, it can be just thin sliver that extends less than a mile from the coast, to it covering the entire western half of the county during the dreadful days of June Gloom and May Gray. He works in La Jolla and I work close to the UTC area and there have been many days when he tells me that he didn't see the sun all day, and at the same time, it's sunny where I am. We're talking a distance of about 5 miles.

It's safe to say that the marine layer is pretty non-existant between August through Mid March. That's when most days are clear and sunny, except for when it rains.

[magnumforc]

I live in Carlsbad about a quarter mile from the beach and love the marine layer. When everyone inland is sweltering, we're enjoying upper 60's to low 70's, and by the time it burns off around noon to one or later in the afternoon, it keeps the temperature moderated for the rest of the day.

We've had summers where the marine layer was present virtually the entire summer, although the posters above are correct, in that it's usually a May and June phenomenom. But, here it is mid-July and it's with us just about every day so far.

If anyone can remember the summer of 1994, in August we had some early morning fog all along the Southern California coast, no marine layer, and the temperatures went through the roof, over 100 degrees every day at the coast. 104 at Chula Vista, Wilmington 104, Marina del Rey 102, Long Beach Harbor 104 and finally Catalina where it was 78. It was a no brainer to remain in Cat Harbor for two weeks!

When the hot, dry Santa Ana winds begin to blow in September, we'll be praying for the retirn of the marine layer to bering some relief from the dry heat.

The marine layer usually completely subsides around Rancho Santa Fe Road which is east of El Camino Real if you're in Carlsbad. That's a typical cutoff point I note on a regular basis. Traveling east across Palomar Airport Road, you can feel the heat increase as you cross over the slight incline approaching Business Park and it gets warmer and sunnier after that.

[ptcgirl]

I use to live in Carlsbad in a couple of different locations. IMO El Camino Real is the imaginary June Gloom line. I'm like you, it drove me crazy when we lived a mile from the beach (cold, overcast in the mornings). But, when we lived just off of El Camino Real it was generally sunny and beautiful! Good luck!