"Unbearable" is subjective, but August is statistically the most challenging month to visit Florida. Temperatures consistently hit 90°F to 95°F (32°C–35°C), but the humidity makes the "feels like" index soar to 105°F to 110°F. This is the peak of hurricane season, so you should expect daily, heavy afternoon thunderstorms and the potential for larger tropical disturbances. While the heat is intense, the trade-off in 2026 is that crowds are significantly thinner as local schools return to session in early-to-mid August. If you plan your theme park visits for early morning and late evening, and spend the mid-day in air-conditioned museums or hotel pools, it is manageable, but you must stay vigilant about hydration and sun protection.