The Dalmatian Coast of Croatia, San Sebastián in Spain, and the island of Aruba are among the most perfect seaside destinations for the first half of August. During these two weeks, the Northern Hemisphere is at its warmest, making it ideal for swimming, while specific southern regions enter their dry seasons.
If you want world-class food paired with a massive cultural celebration, San Sebastián is unrivaled in early August.
For crystal-clear Adriatic waters and a lively summer vibe, the stretch between Split and Dubrovnik is peak perfection.
While most of the Caribbean is in the middle of hurricane season, Aruba is a "safe bet" because it lies south of the hurricane belt.
For travelers looking further east, Bali is in its peak dry season in August, offering a respite from the monsoon rain hitting much of Southeast Asia.