Tualatin is a city located in Washington County, Oregon. It has a mild climate with warm summers and cool, wet winters. The average temperature ranges from the mid-40s°F in winter to the mid-70s°F in summer. Rainfall is abundant, with an average of 40 inches per year, mostly occurring between October and April.

The city is situated along the Tualatin River, which is a significant hydrological feature. This river is fed by several tributaries and provides a beautiful natural landscape for residents and visitors alike. The Tualatin River Watershed is home to a diverse range of flora and fauna, making it a great place for nature enthusiasts.

Outdoor recreation opportunities in Tualatin are abundant. The city boasts numerous parks, trails, and open spaces where residents can engage in activities such as hiking, biking, and picnicking. Tualatin River National Wildlife Refuge offers bird-watching and wildlife viewing opportunities, while Brown's Ferry Park features a boat ramp for kayaking and fishing on the river.

Overall, Tualatin offers a pleasant climate, a stunning hydrological landscape, and ample opportunities for outdoor recreation, making it an attractive place to live or visit for nature lovers and outdoor enthusiasts.