In southern California, the unusual premature heat of March has begun to awaken rattlesnakes from their hideouts early.

Rescue services and local authorities report an increase in sightings on trails, gardens, and residential areas.

A recent example occurred in Rancho Santa Fe, where a snake got trapped in a pool, exhausted after hours of trying to get out.

This phenomenon is due to the increase in temperatures, which could signal an early start to the ‘snake season.’ Even in urban areas near natural zones, encounters are becoming more common, such as when taking out the trash or going out to the yard.

Bruce Ireland, from The Snake Wranglers, commented that this year has been more active than usual, starting earlier. He explains that the heat, along with the availability of food and water, leads snakes to move more.

Snakes, being ectotherms, depend on the environment for their activity, so a warm March alters their schedule.

A 2021 study on Pacific rattlesnakes suggests that an increase of 1 or 2°C could improve the ‘thermal quality’ of their habitat, facilitating their appearance during colder months.

Premature heat

The rise in temperatures does not mean a whimsical ‘invasion‘ into homes. Snakes seek cool and humid places, such as basements, building crevices, or poorly sealed pool pump areas.

The University of California suggests that in summer, snakes may approach cool or water-rich areas, such as pools or ponds, where they often find prey.

Rattlesnakes avoid humans, but if they feel threatened, they can attack. In California, most bites occur between April and October, coinciding with more time spent outdoors for both people and snakes.

In the U.S., between 7,000 and 8,000 bites from venomous snakes are recorded annually, with approximately five deaths, mainly due to delays in medical assistance. In California, the poison control system receives numerous calls about rattlesnake encounters each year.

Despite the risks, snakes are essential for controlling the rodent population and maintaining the balance of the ecosystem. The key is to coexist with them safely.

To prevent unwanted encounters, it is crucial to eliminate potential shelters, such as areas with tall grass or piles of wood, and control the rodent population.

The University of California advises sealing cracks larger than 6 millimeters and checking access under doors to prevent their entry.

Regarding repellents, many have not proven effective, so it is recommended to focus on physical barriers and good maintenance.

The best advice outdoors is to keep your distance and stay calm. When walking on trails, it is preferable to follow used paths, observe the terrain, and slowly back away if you encounter a snake.

In the presence of a snake on your property, the safest action is to contact wildlife control professionals or emergency services. Do not attempt to capture or kill it, even if it appears dead.

In case of a bite, it is essential to stay calm, call 911, remove rings and watches, and seek medical attention without applying tourniquets or ice. The official guide on rattlesnakes is available at Rattlesnake.