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San Diego · Human Guidance Layer
Updated live · Weather · Page · Seasonal Guide

in San Diego Rainy Season Home Checklist

San Diego averages only 10–12 inches of rain per year — but because homes and drainage systems sit dry for months, the first real rain reveals every gap: leaky roofs, clogged gutters, cracked window seals, and poor yard drainage. This checklist helps you catch problems before they become water damage.

Roof and gutters

  • Clear gutters and downspouts before November
  • Check roof for cracked, lifted, or missing shingles
  • Look at flashing around chimney, skylights, and vents
  • Trim overhanging tree branches before storms
  • Check attic for signs of prior water intrusion
  • Test downspout extensions — water should drain away from foundation

Windows, doors and drainage

  • Check window weatherstripping and caulk
  • Test sliding door seals — common leak point in San Diego homes
  • Clear any debris from yard drains and area drains
  • Check that slope drains away from house (not toward it)
  • Inspect window wells if you have basement or below-grade rooms
  • Confirm sump pump (if any) is working

Interior and quick fixes

  • Check under sinks for existing slow drips before rain complicates them
  • Note any wall stains from last rainy season — those spots will leak again
  • Test smoke and CO detectors — replace batteries now
  • Have a water shutoff plan if pipes burst
  • Store important documents above floor level if you've had flooding
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Updated February 2026

Related Pages

→ Roof Leak After Rain • Flooding After Rain • Water Damage Restoration • Gutter Cleaning • Roof Inspection
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Updated: 2026-02-23