Rison, Maryland is a small, unincorporated community located in southern Prince George's County. The area experiences a temperate climate with hot, humid summers and cool winters. Summers are typically mild, with average temperatures ranging from the mid-80s°F (29°C) to low 90s°F (32°C), while winters are cool with temperatures averaging in the low 40s°F (5°C).

In terms of hydrology, Rison is situated near several bodies of water, including the Patuxent River and its tributaries. The region benefits from abundant rainfall throughout the year, contributing to the area's verdant landscape and supporting the local ecosystem.

Outdoor enthusiasts can partake in various recreational activities in and around Rison. The proximity to the Patuxent River offers opportunities for boating, fishing, and kayaking. There are also ample hiking trails in the nearby Patuxent River State Park, allowing visitors to explore the picturesque woodlands and observe local wildlife. Additionally, the Jug Bay Wetlands Sanctuary, located a short distance away, offers educational programs and guided tours for nature enthusiasts.

Overall, Rison, Maryland provides a pleasant climate, abundant water resources, and numerous outdoor recreation opportunities for residents and visitors alike.