Boating, Fishing, and Travel Information for San Diego, CA
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Seasonal Weather in San Diego:
The mild climate from San Diego to Point Arguello is controlled by the Pacific high-pressure system. Aided by the sea breeze, it brings winds from off the water, mainly south through north, which help keep coastal temperatures up in winter and down in summer. Coldest average temperatures range from the middle to upper fifties (12° to 16°C), while summertime readings are most often in the seventies (22° to 27°C). Occasionally a hot dry flow off the land in autumn will cause temperatures to soar into the nineties (33° to 38°C), and a rare winter outbreak from the east can drop temperatures to below freezing (<0°C). Winter is the rainy season, although not much rain falls along these coasts.
In the San Diego Bay area, visibilities are reduced to less than 0.5 mile (0.9 km), mostly by radiation fog, on about 3 to 7 days per month from September through April. December is the foggiest month. This fog is worst during the late night and early morning hours. Dense fog is as frequent at North Island as it is at Imperial Beach. However, sound signals indicate that in general it is foggier around the entrance to the bay than it is in the north sections. For example, in December, the sound signal at Point Loma is operating about 20 percent of the time, compared to 10 percent at Ballast Point.
Hyper-local Stations to Provide Real-Time, Observational Data on Sea-Levels for 5 Coastal Towns Rockland, Maine -- US Harbors, in partnership with Divirod, a data and technology company, is launching a pilot program in Penobscot Bay, ME to test a new technology for water-level sensing. NOAA currently maintains 200 live, observational tide… Learn More
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Coastal News Updates See All
US Harbors is hosting a free, online conference with internationally renowned experts speaking on key aspects of rising coastal water levels. The purpose of the event is to help communities understand what is happening–and predicted to happen–with rising water-levels and learn about how to track, and plan for, these conditions. EVENT… SEE MORE
By Jennifer Brett. As the leaves start to fall in the northern climes, boaters are making their winter plans for their vessels. Whether you have a cruising sailboat, a trawler or a center console, here are five tips that you can do when winterizing your boat to lessen the impact… SEE MORE
By John Loeffler. Cargo ships carrying hundreds of thousands of shipping containers full of holiday gifts, electronics, decorations, and more are languishing off the coasts outside America’s largest ports, threatening to disrupt this year’s Black Friday and holiday shopping season — and there might be worse in store in the… SEE MORE