Wilmer, Alabama is a small community located in Mobile County. It experiences a humid subtropical climate, characterized by hot, humid summers and mild, wet winters. Summers in Wilmer are typically hot, with temperatures often reaching the high 90s (Fahrenheit). Winters are milder, with temperatures averaging in the 50s. The area receives a significant amount of rainfall throughout the year, with the wettest months being July and August.

Wilmer is surrounded by various water bodies, including creeks and swamps. The area's hydrology constituents consist of the Escambia River, which flows through the nearby Escambia County, as well as smaller creeks such as Chunchula Creek and Fish River. These water bodies provide opportunities for fishing, boating, and other water activities.

Outdoor recreation opportunities in Wilmer are abundant. The community is surrounded by natural beauty, with numerous parks, trails, and wildlife areas nearby. Residents and visitors can explore the Mobile-Tensaw River Delta, which offers opportunities for birdwatching, kayaking, and hiking. Additionally, the nearby Mobile Bay provides opportunities for boating, fishing, and enjoying waterfront activities. The vibrant outdoor options make Wilmer an appealing destination for nature lovers and outdoor enthusiasts.