Tempe, Arizona is located in the Sonoran Desert and experiences a hot desert climate. Summers are extremely hot, with average temperatures ranging from 90°F to 105°F (32°C to 41°C) and occasionally exceeding 110°F (43°C). Winters are mild, with average temperatures ranging from 65°F to 75°F (18°C to 24°C) during the day and dropping to around 40°F (4°C) at night. The city enjoys more than 300 sunny days per year.

Regarding hydrology constituents, Tempe is situated alongside the Salt River, which provides a vital water source in an otherwise arid region. Tempe Town Lake, a man-made reservoir on the Salt River, offers opportunities for boating, fishing, and other water sports. The lake also serves as a recreational hub, hosting various events and festivals.

Outdoor recreation enthusiasts can explore the numerous parks and trails in Tempe. Papago Park features unique geological formations and hiking trails, while South Mountain Park offers expansive desert vistas and over 50 miles of hiking, biking, and horseback riding trails. Tempe is also home to several golf courses, including the renowned Karsten Golf Course.

In summary, Tempe, Arizona has a hot desert climate, relies on the Salt River for water, and offers a range of outdoor recreation opportunities such as boating, fishing, hiking, and golfing.