Today's swarm risk
Termite swarm risk in Hillsborough, CA
San Mateo County
Low swarm riskDrywood termites are in swarm season here. Needs 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.
The 11/100 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 conditionsThe season is open, but today's conditions are a bit off for a flight. Watch for the next warm, humid, still evening.
Free inspection quote
Seeing signs of termites in Hillsborough?
The next 7 days in Hillsborough
Swarm risk recalculates daily from the local forecast. Each bar is that day's 0–100 score.
Which termites swarm in Hillsborough, and when
Subterranean termite
Swarms Mar–MaySwarms on warm spring days, usually in daylight and often within a day or two of rain, as the soil warms.
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.
Termite inspection & treatment in Hillsborough
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. Hillsborough 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 Mateo County → · Termite coverage across California →