SM Civic Auditorium, CA

INLAND URBAN HEAT & AIR QUALITY

Live AI Coastal Briefing

This morning, Thursday, April 9, we're waking up to a dominant marine layer with 100% cloud cover, which typically burns off by late morning, giving way to a beautiful day for beach visitors. The full day holds a lot of promise for outdoor enthusiasts, with plenty of opportunities for surfing, running, cycling, and other activities. As the morning develops, we can expect the marine layer to slowly clear, making way for a pleasant day ahead.



The ocean conditions are looking great for surfers, with wave heights at 2.8 feet, which is knee to waist high, making it perfect for longboarders. The water temperature is a comfortable 66°F, making a spring suit a good choice, although a full wetsuit may be preferable for longer sessions. With a low rip current risk, standard beach safety applies, and it's always a good idea to check the local tide chart for low and high tide times. The swell is standard, making it a great day to catch some waves.



For runners and cyclists, the morning conditions are ideal, with a gentle wind of 4mph from the NE and the marine layer providing a cool overcast cover. With a low UV index of 0, no special protection is needed for now, but it's always a good idea to plan for sun protection as the UV builds through the morning. The moderate air quality, with an AQI of 80, may require sensitive individuals to limit their prolonged outdoor exercise. Beach volleyball, paddleboarding, and tennis are all great options for the morning, before the afternoon onshore breeze picks up, making the morning window the best time to plan outdoor activities.



As the afternoon develops, we can expect the marine layer to have burned off, making way for a pleasant evening. With the pressure at 29.85 inHg, there's a slight indication of unsettled conditions, but nothing to dampen our spirits. As we head into this evening, the temperature will remain mild, making it a great time to enjoy the outdoors. So, make the most of this beautiful day, and get out there to enjoy the sun, sand, and surf – it's going to be a fantastic day, and I hope you make the most of it.



Briefing issued 6:30 AM, Thursday, April 9. Live conditions update continuously above.