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Overall, which type of weather feels warmer to you? June Gloom or warm & dry weather in January caused by Santa Ana winds?
Although temperatures are struggling to reach 75F during June gloom due to marine layer, nights are usually quite warm with lows in the 60s. Days are really warm (low to mid 80s) and sunny during Santa Ana wind events in January, but nights could be chilly with lows around 50F. (90% of the time between 45-55)
I'd ask this in the Los Angeles/US boards as there are very few (if no) regulars here from So Cal I'd assume. The majority of us here haven't experienced such conditions. But if I can play along, maybe June Gloom would feel warmer because of the sun's position in the summer sky? Then again, hot and dry winds in the winters (despite a weaker sun) will definitely not feel cool.
I'd ask this in the Los Angeles/US boards as there are very few (if no) regulars here from So Cal I'd assume. The majority of us here haven't experienced such conditions. But if I can play along, maybe June Gloom would feel warmer because of the sun's position in the summer sky? Then again, hot and dry winds in the winters (despite a weaker sun) will definitely not feel cool.
Yes, but I think this could also happen in Sydney at different times of the year. Maybe several warm sunny days with cool nights in September (13-29C) would feel warmer than those cloudy days with warm nights in March (18-22C)
I'd ask this in the Los Angeles/US boards as there are very few (if no) regulars here from So Cal I'd assume. The majority of us here haven't experienced such conditions. But if I can play along, maybe June Gloom would feel warmer because of the sun's position in the summer sky? Then again, hot and dry winds in the winters (despite a weaker sun) will definitely not feel cool.
I lived the first 66 years of my life in SoCal, so understand its climate somewhat. As to the OP's question... It comes down to humidity. Morning conditions during June Gloom feel much colder. After the fog "burns off" around mid-day, it can get pretty warm. During the early summer, one goes to the beach in the afternoon. In the mornings, it is too cold.
Santa Ana conditions feel warmer due to the compressional heating of an air parcel and the dry adiabatic lapse rate, and because of its very low humidity. During Santa Ana conditions, an air parcel originates on the Colorado Plateau and the air circulation out of the high pressure system pushes that air parcel down to sea level at L.A. That's a drop of around 5,000-6,000 feet and at the DALR of 9.8 °C/km (5.38 °F per 1,000 ft), the air warms up around 30 °F on its journey to the coast.
I've sat on the beach in June many a time with a sweatshirt on. The marine layer does not always burn off in the afternoon, and combined with the wind off the water...it can be chilly.
I expect it to be cool at night so a night in the 60s vs a night in the 50s don't really alter my perception that the sunny Santa Ana weather is warmer overall. I find it funny that you refer to a June night in the 60s as "warm." A lot of four-seasons lovers object to SoCal summer nights because they are too cool. When we go out to see fireworks on the Fourth of July, I almost always need a sweatshirt.
I would definitely think Santa Ana winds (although I've only experienced the June Gloom before). Watching the PGA Tour play in California feels pretty wacky as it feels that the seasons are sometimes reversed, it could be very warm and dry and sunny in February when play the AT&T Pebble Beach in a Santa Ana wind event, and then 4 months later completely gloomy and chilly and miserable in June with everyone bundled up for the US Open (which happened in 2019)
I've sat on the beach in June many a time with a sweatshirt on. The marine layer does not always burn off in the afternoon, and combined with the wind off the water...it can be chilly.
I expect it to be cool at night so a night in the 60s vs a night in the 50s don't really alter my perception that the sunny Santa Ana weather is warmer overall. I find it funny that you refer to a June night in the 60s as "warm." A lot of four-seasons lovers object to SoCal summer nights because they are too cool. When we go out to see fireworks on the Fourth of July, I almost always need a sweatshirt.
Compare to those chilly nights (upper 40s to low 50s) during Santa Ana weather in January, isn't a June night in the 60s relatively "warm"? I know summer nights are much warmer on the east coast of NA (70s).
Overall, Santa Ana weather is warmer than June Gloom, but mornings can be chilly (47F) even temperatures warm up to 80F in the afternoon during Santa Ana wind events in January.
Yes, but I think this could also happen in Sydney at different times of the year. Maybe several warm sunny days with cool nights in September (13-29C) would feel warmer than those cloudy days with warm nights in March (18-22C)
Personally, I'd say the March conditions would feel warmer overall than September's because of the warmer nights and relatively higher humidity.
Those warm sunny days during Santa Ana wind events in January definitely feel much warmer than cloudy/overcast days in June.
I agree. As long as there is cloud cover, it feels much cooler than having the sun on you with warm dry winds.
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