The Soil & Water Assessment Tool is a small watershed to river basin-scale model used to simulate the quality and quantity of surface and ground water and predict the environmental impact of land use, land management practices, and climate change. SWAT is widely used in assessing soil erosion prevention and control, non-point source pollution control and regional management in watersheds.
Download SWAT+
A modernized, highly flexible ecohydrological model built with a streamlined setup and advanced code structure. SWAT+ delivers comprehensive capabilities for water balance, crop growth, and nutrient transport, with upcoming support for advanced water allocation systems.
rev. 62.0.1 with interfaces v4.1.0 - 20 October 2026
Join us January 2027 in India
The next SWAT Conference & Workshops will be held 4-8 January 2027 at the National Institute of Technology Warangal. Submit an abstract and register today.
Call for Papers
Advances in SWAT Applications: Modeling Hydrology, Climate Resilience, and Sustainable Land-Water Management. Special issue in Hydrology. Submission deadline: 31 October 2026
Integrated Hydrologic Modeling and Data-Driven Decision Support. Special issue in Water. Submission deadline: 20 March 2027
SWAT-VEXA
Texas A&M AgriLife Research collaborated with the IBM Sustainability Accelerator to create the SWAT Virtual Extension Assistant, an interactive Gen AI virtual assistant that provides user-friendly soil and water information to support agricultural and natural resource decision-making.
Upcoming Workshops
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12 Nov 2026 / Online
OK-HAWQS Beginner Workshop
Join us for a free overview and live demonstration to discover how Oklahoma HAWQS can support and streamline your watershed planning needs.
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16-18 Nov 2026 / Online
SWAT+ Beginner Workshop
From setup to simulation: your guided start in SWAT+ modeling
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23-25 Nov 2026 / Online
SWAT+ Advanced Workshop
From land management to calibration: advanced SWAT+ modeling in practice
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4-5 Jan 2027 / India / online
SWAT+ Workshop
Basics and beyond: from GIS setup to model calibration
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4-5 Jan 2027 / India / online
SWAT+ gwflow Workshop
Advanced coupled surface-groundwater simulations in SWAT+