Today's swarm risk
Termite swarm risk in National City, CA
San Diego County
Moderate swarm riskDrywood and Desert subterranean termites are both in swarm season here now, so watch for flights on the next warm, humid, still evening.
The 48/100 is a daily index of how favorable today's weather is for a swarm flight where these termites live, not a sign that your home has termites. How this works.
Right now
Local conditionsThese are the warm, humid conditions termite swarms key on. Watch for winged termites around lights and windows.
Free inspection quote
Seeing signs of termites in National City?
The next 7 days in National City
Swarm risk recalculates daily from the local forecast. Each bar is that day's 0–100 score.
Which termites swarm in National City, and when
Subterranean termite
Swarms Feb–AprSwarms on warm spring days, usually in daylight and often within a day or two of rain, as the soil warms.
Formosan termite
Swarms Apr–JunSwarms at dusk on warm, humid, still evenings in late spring and early summer, the massive flights the Gulf Coast is known for.
Drywood termite
Swarms Jul–OctIn season nowNeeds no soil contact, so flights come straight out of dry structural wood. In the Southeast, Gulf, and Florida it swarms at night in spring and early summer; in California and Arizona it swarms on warm late-summer and fall days.
Desert subterranean termite
Swarms Jun–SepIn season nowSwarms on warm nights after the summer monsoon rains across the desert Southwest.
Termite inspection & treatment in National City
If you have seen winged termites, discarded wings, or mud tubes, or you just need a wood-destroying-insect inspection before buying or refinancing a home, we can connect you with a vetted local termite pro for a free, no-obligation quote. National City sits in a very heavy termite-pressure area, so a periodic inspection is worth it here.
Curious what it runs? See our guide to termite inspection cost.
All of San Diego County → · Termite coverage across California →