If you’ve been sneezing more than usual lately, Del Mar, you’re not imagining it. The 2026 allergy season kicked off earlier than normal this year, and a new AAFA report just ranked San Diego as the second-worst city in the country for pollen allergies out of the 100 largest cities. Between the eucalyptus trees lining Camino Del Mar, the oak and olive trees scattered across Del Mar Heights, and that signature coastal breeze ferrying pollen from inland straight through your windows, spring here is genuinely rough on your respiratory system.
The good news is that much of what’s wrecking your sinuses is fixable, right in your own home.
Why Del Mar Gets Hit Harder Than You’d Expect
Southern California’s warm, mild climate means tree pollen season can start as early as February and peaks hard through April and May. Now that spring has officially arrived, pollen counts are already climbing fast. In Del Mar specifically, the biggest culprits are:
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Eucalyptus trees (a coastal fixture and one of the heaviest spring pollen producers in the region)
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Oak, ash, and olive trees (common throughout Del Mar Heights and Torrey Hills)
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Grass pollen from local parks, trails near Torrey Pines, and well-maintained neighborhood lawns
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Coastal sea breezes that pick up pollen from farther inland and push it directly through your open front door
What’s Already Lurking Inside Your Home
Every time you crack a window, walk in from the beach, or let a pet in from the backyard, pollen hitches a ride inside with you. With pollen counts set to peak through April, right now is the best time to focus your cleaning efforts here:
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Bedding: Wash sheets and pillowcases weekly in hot water (at least 130°F). Pollen and dust mites settle deep into fabric faster than you’d think.
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Carpets and rugs: Vacuum at least twice a week using a HEPA filter vacuum to trap allergens rather than scatter them back into the air.
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Curtains and blinds: Both trap pollen like a net, and both get skipped during regular cleaning. Wash fabric curtains and wipe down blinds before the buildup gets out of hand.
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Ceiling fans: Wipe them down before you run them for the season. Turning on a dusty fan basically aerosolizes everything that settled there over the winter.
Your Indoor Air Quality Actually Matters a Lot
Indoor air during allergy season can be significantly worse than outdoor air, especially after a breezy Del Mar afternoon with the windows open. A HEPA air purifier in the bedroom is one of the most practical changes you can make. According to the EPA, HEPA filters capture up to 99.97% of dust, pollen, mold, and other airborne particles down to 0.3 microns.
A few more quick wins for cleaner home air:
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Swap out your HVAC filter now, before the heavy season kicks in. A MERV-11 or MERV-13 rated filter makes a real difference.
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Keep windows closed on high-pollen days, especially in the early morning when counts are typically at their highest.
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Run the air conditioning on warm days instead of opening windows. Same cool air, no pollen problem.
Consistency Beats One Big Spring Clean
A light, steady cleaning routine throughout the week does more for your symptoms than a single deep scrub every couple of months. Allergens build up quickly, and letting them pile up only makes things worse. If keeping up with it gets away from you, booking a professional deep clean right now is a smart move, particularly for upholstery, carpets, and the spots that rarely get attention during a standard weekly cleanup.
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Sources: patch.com, aafa.org, southerncaliforniaallergy.com, accuweather.com, allermi.com, tomsguide.com
Header Image Source: Towfiqu barbhuiya on Unsplash
