In February 2026, St. Petersburg, Florida, will likely experience variable humidity levels characteristic of its subtropical climate. The city's location near the Gulf of Mexico significantly contributes to the moisture content in the air, causing humidity to peak in the early morning and late afternoon. Residents and visitors should anticipate a muggy atmosphere, particularly on warmer days. High humidity can make outdoor activities more difficult by reducing the body's ability to cool down, potentially leading to discomfort and increased risks of heat-related health issues.