Car hire in San Marcos, California

The majority of the San Marcos car hire agencies that we partner with do not have a cancellation fee. This means that if your plans change unexpectedly, many car hire centres in San Marcos such as Hertz, A Plus Car & Truck, and Avis often offer cancellation free of charge based on when you booked.

The speed limit in San Marcos is 25 mph, unless otherwise stated on road signs. San Marcos also has a suburban speed limit of 75 mph which is strictly enforced. If you find yourself on a motorway in San Marcos, be aware that the speed limit is generally 75 mph.

Typically, the weather in San Marcos through the month of July is 24 °C and the expected precipitation is 2 mm. This is important information to know when hiring a car so you can be sure to rent the perfect car for the expected weather.

Those looking to hire a car in San Marcos for a road trip to the surrounding areas, please know the weather in California during the month of July usually is around 22 °C with 1.3 mm of possible rain.

Prices for cars in San Marcos are updated daily.

There are 12 operators available for cars in San Marcos as of July 2025.

The minimum age for drivers varies by country, including San Marcos. In numerous EU countries, drivers must be 18 years old. To rent a car overseas, you'll generally need to be at least 21, and if you're under 25, a young driver surcharge may be applied. We advise that you read the policy of your chosen rental company before making a reservation.

To rent a car in San Marcos, all drivers must present a valid full driving license. If the license is written in a language other than the language of the country of rental, an International Driving Permit may be required to avoid the risk of potential fines. If you're renting a car abroad, you may also need to provide evidence of your return travel and accommodation information during your stay. We always recommend that you verify with the specific rental company you're booking with.