How San Jose’s Seasonal Weather Triggers Termite Activity
- Jameson Elam
- Sep 30
- 3 min read
About the Author: Jameson Elam is the owner and operator of Good Sense Termite, serving Alameda, Santa Clara, San Mateo, and Santa Cruz counties. With over 14 years of hands-on experience in the termite control industry, Jameson specializes in thorough inspections, accurate diagnostics, and long-term solutions tailored to California homes. His deep knowledge of local termite behavior and building structures has made Good Sense Termite a trusted name for homeowners and real estate professionals alike.
Why Termite Activity Changes With the Seasons
In San Jose, termites don’t take the winter off—they just slow down. Our mild climate and seasonal shifts create the perfect conditions for different types of termite activity throughout the year.
Understanding how seasonal weather affects termites can help you protect your home and avoid surprise infestations.
Termite Behavior by Season in the Bay Area
Winter (December – February)
Subterranean termites stay active underground, near heat and moisture sources
Drywood termites are mostly dormant unless indoors
Heavy rains can soften soil, making tunneling easier
Spring (March – May)
Swarm season begins for subterranean termites
Warm temperatures and moisture trigger new colonies
Homeowners may see discarded wings on windowsills
Summer (June – August)
Drywood termites are most active in hot attics and dry wood framing
Heat speeds up colony growth
Outdoor decks and fences are at risk if untreated
Fall (September – November)
Termites prepare for cooler months by digging deeper into soil or hidden wood
Post-summer moisture from fog and early rains can reactivate soil tunneling
How San Jose Weather Impacts Termite Risk
Rainy Winters: Moist soil and puddles help subterranean termites thrive
Dry Summers: Drywood termites search for attic and wall cavities
Morning Fog: Keeps soil and siding damp for longer periods
Temperature Swings: Encourage swarm events in spring and early fall
Even though we don’t see freezing winters, year-round mild weather means year-round risk.
Warning Signs to Watch Each Season
Winter: Mud tubes along foundations after heavy rain
Spring: Swarmers or piles of discarded wings
Summer: Hollow-sounding wood or attic damage
Fall: Soft spots in decks, fences, or siding
Seasonal Termite Prevention Tips
Schedule Seasonal Inspections – Especially in spring and fall
Control Moisture – Clear gutters, fix leaks, and improve drainage
Protect Exposed Wood – Seal decks, fences, and eaves
Plan Ahead – Treat early if swarming season is approaching
Why Choose Good Sense Termite for Year-Round Protection
Our licensed inspectors have over 14 years of experience monitoring termite behavior in San Jose’s unique climate. We provide:
Seasonal inspections tailored to local conditions
Free, photo-documented assessments of any activity
Treatment and warranty plans to protect homes year-round
FAQ: Seasonal Termite Activity
Are termites only active in spring?
No. They swarm in spring, but they feed year-round in San Jose’s mild climate.
Does winter stop termite damage?
Activity slows, but subterranean termites continue tunneling in moist soil.
When is the best time to inspect my home?
Spring and fall are ideal, but any season works if you want peace of mind.
Don’t Let the Seasons Catch You Off Guard
Termites in San Jose adapt to the weather—but so can you. Schedule a free inspection with Good Sense Termite and keep your home protected all year.
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