Visa is not required to visit Thailand as a tourist for a stay up to 30 days. If you want to stay more - you will need a visa.
For more information please contact Embassy of Thailand in Spain.
Thailand uses similar GSM mobile networks (GSM 1800, GSM 1900 and GSM 900) as Spain so you should be able to normally use your mobile phone.
If you don't want to buy SIM card in Thailand upon arrival, make sure to check the roaming charges with your telecom provider before your departure so there are no surprises when you return home.
To call Thailand from Spain, dial + or 00 (exit code for Spain), then 66 (the country code for Thailand), then the area code (without the initial 0) and the local number.
For local calls within Thailand, start with the area code (with the initial 0). In the case above area code is 2 .
Thailand has a moderate crime rate (higher than Spain). Take precautions to avoid mugging, bag snatching and pickpocketing. Be particularly vigilant at airports, railway stations and crowded public gatherings. Do not leave valuables unattended.
It's recommended to follow security precautions like wearing a money belt, leaving valuables in your hotel room safe or well out of sight, securing your bag, staying vigilant in crowds and steering clear of commotions.
The following vaccinations listed for this country are recommended for your protection and to prevent the spread of infectious diseases.
These apply only to select travelers or persons on work assignments.
In Thailand you drive on the left side. Most cars have manual transmission (stick).
Unless otherwise posted, the speed limits for cars and motorcycles are as follows: 120 km/h (74 mph) on motorways, 60 km/h (37 mph) in all built-up areas, 90 km/h (55 mph) on undivided highways and 90-120 km/h (55-74 mph) on expressways.
An International Driving Permit (IDP) is required alongside your original license. IDP can be issued by your local automobile association before you leave home.
In order to rent a car:
Minimum age to purchase and drink alcohol is 20 years old.
Drugs (including cannabis/marijuana) are illegal & criminalized which means you are risking jail time with other penalties (fine, community service, rehabilitation) if you are caught.
Even though prostitution (offering services) is illegal, there is usually no fine for you as a client because consuming prostitution is not illegal per se. Brothels are illegal.