Tourist arrivals rose 4.72% in July from a year earlier, after rising 0.89% in June, the tourism ministry said in a statement on Tuesday.
The 3.33 million tourists in July spent about 167.3 billion baht, up 3.11% from a year earlier.
Visitors from China, Thailand's biggest source of tourists, rose 5.81% in July from a year earlier, after dropping 7.1% in June.
Foreign tourist receipts make up about 12% of Thailand's gross domestic product.