San Jose is waking up to morning cooling and cloud conditions Monday, but the mild start is only the opening act. Labor Day should turn sunny and warm, with inland highs in the 80s and lower 90s, before hot conditions develop in the South Bay during the middle of the week.
The holiday forecast points to a warmup. The latest forecast keeps the city dry through the weekend, with the hottest stretch arriving in the middle of the week.
Sunny Labor Day Leads Into A Hotter Tuesday
Temperatures should rise Monday, with inland highs in the 80s and lower 90s. Winds will be variable, while Monday night turns mostly clear with a low near 60.
Tuesday brings another warm day. Some coastal stratus and fog may redevelop around the San Mateo County coastline and parts of the East Bay.
Wednesday Could Be Part Of A Hot Midweek Period
Wednesday is currently expected to be part of a hot midweek period. Hints of cool-air advection may return late in the week, though the timing and duration remain uncertain.
Dry weather remains in the forecast through the weekend. The cooler weekend forecast should offer some relief after several days when afternoon errands, outdoor work and unshaded patios could feel considerably less relaxing. According to Santa Clara County's Excessive Heat Response Annex, the county's heat-response plan is reviewed and exercised periodically and revised as conditions and needs change. According to Santa Clara County's Excessive Heat Response Annex, residents can consult County of Santa Clara resources for cooling-center locations and information on heat-related illnesses and prevention. The County of Santa Clara identifies people who spend considerable time outdoors, those without air conditioning and young children among those most vulnerable to extreme heat.
NOAA's National Centers for Environmental Information reported that a heatwave settled over the West the first week of September and that nearly 1,000 heat records had been broken by September 9.
According to the National Weather Service, San Jose, Santa Cruz and Salinas set all-time record warm overnight low temperatures from Friday night into Sunday during the 2017 heat event. The National Weather Service says weather records for San Jose began in January 1874, providing a long historical record for comparing local heat events.
Coastal Beach Plans Come With A Warning
San Jose residents heading to the Pacific should be aware that a Beach Hazards Statement remains in effect through Monday evening. The National Weather Service warns of sneaker waves, strong rip currents and breaking waves reaching up to 10 feet in some locations.
Beachgoers are urged to stay out of the water unless they are expert swimmers and to never turn their backs on the ocean. Anyone caught in a rip current should swim parallel to shore until the pull weakens, then angle back toward the beach.
