I can second "deep summer". Up here at 480 feet and 3 miles from the ocean (2 miles inland from @Darold Petty), in the evening you can barely see across the street. The photo below is typical--it was heavier last night. By morning everything under canopy is soaked from the "rain". The sun frequently fails to emerge all day. Locals refer to Grey May, June Gloom, No Sky July and Fogust 😆 It's great for the cool-weather palms and plants like our Sphaeropteris medullaris...not so much for lounging in the hammock, or watching fireworks. Our Hedyscepe is doing great, although a ways from trunking still. Our little double Howea belmoreana is struggling due to K deficiency and it actually does fry when the sun shines, but I think it will be fine eventually. (No palms in this pic, sorry.)