As we march into the long weekend, San Diegans can anticipate a brief cool-down followed by a gradual warm-up. The immediate relief from the heat comes from a low-pressure system gliding through California, initiating a pleasantly mild Independence Day, according to the latest forecast from the National Weather Service in San Diego.
But don't pack away those fans just yet - as the NWS San Diego's Area Forecast Discussion details, we're in for "gradual warming expected Friday through the weekend." Those planning outdoor activities from beach days to barbecues should prepare for high temperatures warming around 5 degrees from Thursday through Sunday. It looks like inland areas are particularly about to feel the scorcher, with Wednesday high temperatures 4 to 8 degrees above average for inland areas, with high temperatures of 112 to 115 for the lower deserts and in the 90s to 103 for the Inland Empire. Night owls and early birds along the coast can still expect night and morning coastal low clouds spreading inland into portions of the western valleys late each night.
For beachgoers, there's a mix of news. A building southerly swell will up the ante for surfers with elevated surf of 3-5 ft with sets to 6 ft along southerly facing beaches Thu-Sat. Still, swimmers should beware, the NWS warns, with strong rip and longshore currents expected at all beaches Friday and Saturday. As the swell subsides on Sunday, the beaches might become more welcoming for those looking to cool off from the intensifying heat.
Hitting the skies, aviation interests might note some marine layer interference. "Low clouds with bases 1000-1500 ft MSL have pushed 15-20 miles inland covering coastal areas and western valleys of SD/Orange Counties," according to the NWS San Diego. The marine layer is thickening, and the interior push of coastal clouds is expected to remain a morning feature through the week. However, no hazardous marine conditions are expected through Sunday, which is good news for the boaters and sailors eager to take to the waters over the holiday weekend.
