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Termites
5 Min Read

Termite Swarming Season in California: What Every Homeowner Needs to Know

At The Termite Guy, we understand that your home is your sanctuary. That's why we've built our reputation on providing fast and effective termite and pest control solutions you can trust.

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Published on Dec 09, 2025

If you own a home or business in Orange County or Los Angeles County, you’ve likely heard about termite season. But what exactly is termite swarming season, and why should you care? Understanding when termite season occurs, how long it lasts, and what to look for can help you protect your property from costly damage. This guide will answer all your questions about termite swarmer season, including when it starts, how long it lasts, and what you should do if you spot signs of termites.

What Is Termite Season?

Termite Season Explained: The Basics

Termite season refers to the time of year when termites are most active, especially when they leave their colonies to mate and start new ones. This period is known as termite swarming season, and it’s when you’re most likely to see flying termites, or “swarmers,” around your property. While termites can be active year-round in Southern California, swarming season is the most visible and risky time for infestations.

How to Recognize Termite Swarmers

Why Termite Swarming Season Matters for Homeowners

During termite swarming season, reproductive termites (alates) leave their nests in large numbers to find mates and establish new colonies. This natural process is essential for the survival of termite populations, but it also signals a potential threat to your home or business. Swarming termites are a clear sign that a colony is nearby, and if they find suitable conditions, they can quickly establish a new infestation.

When Is Termite Season in California?

Termite Swarming Season

Timing of Termite Swarming Season in Southern California

One of the most common questions we hear is, “When is termite season in California?” The answer depends on the type of termite, but in Orange County and LA County, termite swarming season typically occurs in the spring and early summer. However, the region’s warm, humid climate can extend termite activity well beyond these months.

  • Subterranean Termites: These termites usually swarm from March through May, often after a warm rain.
  • Drywood Termites: Swarming season for drywood termites generally peaks from late summer into early fall, but can occur at other times if conditions are right.
  • Year-Round Activity: While swarming is most visible in spring and summer, termites can remain active and cause damage throughout the year in California’s mild climate.

How Long Does Termite Season Last?

Termite season in California can last several months, depending on weather patterns and local conditions. Swarming events may be concentrated over a few weeks, but the risk of infestation persists as long as termites remain active. Homeowners should remain vigilant from early spring through late fall, and even during winter in particularly warm years.

What Happens During Termite Swarming Season?

Understanding the Swarming Process

Termite swarming season is essentially termite mating season. During this time, mature colonies produce winged reproductive termites, known as alates or swarmers. These swarmers leave the nest in large groups, often triggered by warm temperatures and increased humidity. Their goal is to find a mate, shed their wings, and establish a new colony.

Termite Swarmer Discarded Wings

Key Signs of Termite Swarming Season

Spotting termite swarmers is the most obvious sign that swarming season is underway. However, there are other indicators that homeowners should watch for:

  • Winged Termites Indoors: Finding flying termites inside your home is a strong indication of an active infestation.
  • Discarded Wings: After mating, swarmers shed their wings. Piles of tiny, translucent wings near windowsills, doors, or light fixtures are a telltale sign.
  • Swarmers Near Light Sources: Termite swarmers are attracted to light, so you may notice them gathering around windows or outdoor lights during the evening.

Why Is Termite Swarming Season Important for Homeowners?

Swarming Season Signals a Threat to Your Property

Termite swarming season is not just a nuisance; it’s a warning sign. When you see swarmers, it means a mature colony is nearby, and your property could be at risk. Swarmers themselves do not cause damage, but their presence indicates that worker termites may already be feeding on wood structures in your home or business.

Potential for New Infestations

Swarming termites are looking for new places to establish colonies. If your property offers the right conditions, such as moisture, wood-to-soil contact, or untreated wood, they may settle in and begin the cycle of destruction. Early detection and intervention are key to preventing costly repairs.

Frequently Asked Questions About Termite Season

Is It Termite Season Right Now?

If you’re wondering, “Is it termite season?” the answer depends on the time of year and recent weather. In Southern California, termite swarming season typically starts in March and can last through October, with peak activity in spring and late summer. However, termites can be active at any time, especially after rain or during warm spells.

When Does Termite Season End?

Termite season in California usually winds down by late fall, but mild winters can allow termites to remain active year-round. It’s important to stay alert for signs of termite activity even outside the traditional swarming season.

How Long Is Termite Season?

The length of termite season varies, but in Orange County and LA County, you can expect heightened activity for at least six to eight months of the year. Swarming events may be brief, but the risk of infestation persists as long as termites are active.

How to Protect Your Home During Termite Swarming Season

Proactive Steps to Prevent Infestation

Termite swarming season is the ideal time to take preventive measures. By making your property less attractive to termites, you can reduce the risk of infestation and avoid expensive repairs. Here are some practical steps you can take:

  • Eliminate Moisture: Fix leaky pipes, clean gutters, and ensure proper drainage around your foundation. Termites are attracted to moisture, so keeping your home dry is essential.
  • Remove Wood-to-Soil Contact: Store firewood, lumber, and other wood materials away from your home’s foundation. Use concrete or metal barriers where possible.
  • Seal Entry Points: Inspect your home for cracks, gaps, or holes in the foundation, walls, and roof. Seal any openings to prevent termites from gaining access.
  • Schedule Regular Inspections: Professional termite inspections can catch early signs of activity before major damage occurs. Annual inspections are recommended for all homes in Southern California.

What to Do If You See Termite Swarmers

If you spot termite swarmers in or around your home, don’t panic, but don’t ignore them either. Swarmers are a clear sign that a colony is nearby, and immediate action can prevent a small problem from becoming a major headache.

  • Collect Evidence: Save a few swarmers or their discarded wings for identification by a pest control professional.
  • Contact a Professional: Reach out to a licensed termite control company for a thorough inspection and treatment recommendations.
  • Avoid DIY Treatments: Over-the-counter sprays may kill visible swarmers, but they won’t address the underlying colony. Professional treatment is the only way to ensure complete eradication.

Termite Season in Orange County and LA County: Local Considerations

Why Southern California Is a Hotspot for Termite Activity

The warm, humid climate of Orange County and Los Angeles County creates ideal conditions for termites to thrive. Both subterranean and drywood termites are common in the region, and the extended warm season means that termite activity can persist for much of the year. Homes and businesses in these areas are at higher risk, making regular inspections and preventive measures even more important.

Common Termite Species in Southern California

Understanding the types of termites in your area can help you recognize the signs of infestation and take appropriate action. The two most common species in Southern California are:

  • Western Subterranean Termites: These termites build colonies underground and require contact with soil. They are responsible for most of the structural damage in the region.
  • Western Drywood Termites: Unlike subterranean termites, drywood termites do not need soil contact and can infest dry wood anywhere in your home, including attics and furniture.

How Weather Influences Termite Swarming Season

Rain, Humidity, and Warmth: The Perfect Storm for Termites

Weather plays a significant role in determining when termite swarming season begins and ends. Swarming is often triggered by a combination of warm temperatures and increased humidity, especially after rain. In Southern California, this means that termite activity can spike after winter rains or during unseasonably warm periods.

Why Swarming Season Can Vary Year to Year

Some years, termite swarming season may start earlier or last longer depending on local weather patterns. Extended periods of warmth or heavy rainfall can create ideal conditions for termites to swarm and establish new colonies. This unpredictability is why it’s so important for homeowners to stay vigilant and schedule regular inspections.

What to Expect from a Professional Termite Inspection During Swarming Season

Inspection Process and What It Reveals

A professional termite inspection during swarming season is your best defense against hidden infestations. Inspectors look for signs of swarmers, discarded wings, mud tubes, wood damage, and other indicators of termite activity. They’ll also assess areas of your property that are most vulnerable to infestation, such as crawl spaces, attics, and exterior wood structures.

  • Thorough Examination: Inspectors check both the interior and exterior of your property, including hard-to-reach areas.
  • Identification of Species: Knowing whether you’re dealing with subterranean or drywood termites helps determine the best treatment approach.
  • Customized Treatment Plan: Based on their findings, professionals will recommend targeted treatments to eliminate existing colonies and prevent future infestations.

Why Choose The Termite Guy for Termite Season Protection?

Local Expertise and Proven Results

The Termite Guy has been serving Orange County and LA County for decades, providing expert termite inspections, treatments, and prevention services. Our team understands the unique challenges of termite season in Southern California and uses the latest technology and eco-friendly solutions to protect your property.

Our Value to Homeowners and Businesses

We offer fast, reliable service, transparent pricing, and a commitment to customer satisfaction. Whether you need a one-time inspection or ongoing protection, The Termite Guy is your trusted partner for peace of mind during termite swarming season and beyond.

Take Action This Termite Season

Don’t wait until you see signs of damage, schedule your termite inspection with The Termite Guy today. Our experienced team will help you identify risks, eliminate infestations, and safeguard your investment. Protect your home or business from the hidden threat of termites this season and every season.

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