San Diego weather, explained by a local pattern
San Diego may be America's most plannable city — mild, dry, and consistent most of the year, with rain concentrated in brief winter systems. The asterisk is early summer's marine layer, which can gray out coastal mornings while inland neighborhoods bake in sunshine. Check the specific hour; the afternoon usually redeems the day.
How to use this page
The verdict above reads the next 12 hours of official National Weather Service hourly data for central San Diego and reduces it to one answer. The bar chart underneath shows the precipitation probability hour by hour — taller and bluer means wetter. A quick reading guide: probabilities under 25% are generally safe to plan through, 40% and above during your specific window deserves a plan B, and any active NWS alert (which appears automatically above the chart) outranks everything else on this page.
Conditions can differ across the metro, so for your exact neighborhood — and to check a specific date and time instead of right now — use the ZIP code checker, which also finds your longest dry window of the day. For a deeper read on what these percentages actually mean, see our guide: What does a 40% chance of rain actually mean?