Weather Update: Saturday, December 8, 2018 at 3:30 p.m.
Temperatures will begin to rise through the weekend under high pressure and weak offshore flow. Expect a clear weekend with seasonal temperatures. Cool temperatures and cloudy mornings return early next week.
A Detailed Look at December 8th:
High rip current risk. Water temperature 60-62. New west-northwest swell, heights 3-6 ft. UV index for San Diego is moderate (3).
High temperatures Saturday mild, near average. Coastal highs 65-70, normal around 65. Inland highs 62-69, normal around 70. Mountain highs 49-59, normal around 53. Desert highs around 65-69, normal around 69.
Isolated showers possible through 10 AM as remnants of the low exit the region. Most of the instability and moisture has exited San Diego, so no additional significant rain is expected.
Humidity along the coast and at inland locations will remain fairly mild Friday. Dew points in the 50s for the coast, upper 40s inland, and low 40s for the mountains and deserts. Humidity will remain fairly consistent through Friday, slightly drier through the weekend.
The Week Ahead:
High pressure building in the Great Basin will bring back weak offshore flow for the weekend. Temperatures warm slightly under the higher pressure over the weekend and humidity will decrease through Sunday.
A low pressure trough is set to dip south, into California early next week. Temperatures cool as the low brings cold polar air further south. All models have finally backed off on rain for this system. There will be an increase in clouds, but no significant rain will fall early next week.
High pressure expected to build in the Great Basin late next week. A moderate to strong Santa Ana event is expected with this system. Temperatures will not warm significantly due to the cold origin of the air. Relative humidity will be much lower and gusty winds can be expected in the mountain passes.