The weather in San Diego has been nothing short of unpredictable lately. The National Weather Service in San Diego has indicated a roller coaster of temperatures expected in the upcoming week. There will be a noticeable drop in warmth, with highs on Wednesday expected to be significantly cooler than the previous days—especially in the mountains and inland valleys. According to NWS San Diego, "Expect temperatures to undulate around average over the next week," with a downhill trend leading into Wednesday, followed by a rise above average by Friday.
Not just a dip in the thermometer, but Wednesday is also forecast to be gusty. The winds aren't playing games, with the NWS issuing a Wind Advisory from noon to midnight. Their NWS forecast predicts "West winds 25-35 mph, gusting to 45 mph," impacting mountain areas and desert slopes. It's important to note that gusts up to 55 mph are possible through mountain passes before the winds weaken by Wednesday night. Amidst the advisory, travelers should be cautious as the gusty conditions could affect driving, especially for high-profile vehicles.
For those looking for a little respite, Thursday slightly increases the temperature. However, don't get too comfortable because the weekend brings another cooldown and a deepening marine layer. According to the Area Forecast Discussion, the trend continues into early next week with "dry and warmer for Monday through Wednesday of next week with high temperatures warming to around 5 degrees above average for inland areas."
The marine intrusion is not to be taken lightly. According to NWS San Diego, the marine layer has "deepened to around 2500 feet" and is expected to continue to deepen tonight to around 4000 to 4500 feet. This layering of marine coolness will stretch across many valleys and reach the lower slopes of the mountains by Thursday morning. Additionally, there could be weak offshore flow for Tuesday and Wednesday with locally gusty northeast to east winds along and below the coastal slopes of the mountains. Ensure that you plan your outdoor activities accordingly.
