April in San Diego typically marks a transition from spring’s early stages to more consistently warm and sunny weather. Daily high temperatures average in the high 60s to low 70s Fahrenheit (around 20-22 degrees Celsius), while overnight lows generally settle in the mid-50s Fahrenheit (around 13-14 degrees Celsius). Ocean temperatures remain cool, usually in the low to mid-60s Fahrenheit (around 16-18 degrees Celsius). Rainfall becomes less frequent compared to the wetter winter months, with April averaging less than an inch of precipitation. While sunshine is prevalent, coastal fog can occasionally occur, particularly during the mornings.
Understanding typical climate conditions for this period is valuable for a variety of purposes. Visitors can plan appropriate attire and activities, ensuring comfortable and enjoyable experiences. Residents can anticipate the transition in local weather patterns and adjust gardening or outdoor plans accordingly. Businesses in the tourism and hospitality sectors can use this information to optimize staffing and resource allocation. Historical weather data for this time of year provides a useful baseline for comparison and helps to contextualize current conditions.
