Software Downloads

  • May 18, 2015 QSWAT 1.0
    First release of a QGIS interface for SWAT
  • Dec 17, 2014 Climate Change Data
    Download global CMIP3 data for SWAT
  • Dec 15, 2014 SWAT2012 rev. 635
    Executables and source code
  • Sep 10, 2014 ArcSWAT 2012.10.16/15
    10.16 is for ArcGIS 10.2; Fixes a bug in watershed delineation not present in other versions. 10.15 is for ArcGIS 10.1 SP1, and 10.0 SP5
  • Jun 24, 2014 SWATeditor 2012.10.15
    Companion to ArcSWAT
  • Aug 13, 2014 SWAT Check
    Identify potential model input problems


Upcoming Workshops

Additional learning resources:

Call for Papers

Submit to a special issue in the Sustainability of Water Quality and Ecology journal. The issue is on development and applications of SWAT to support sustainable water systems and ecosystem services. Deadline: February 29, 2016. More information...

Job Opportunities

Looking for job opportunities related to SWAT and/or watershed modeling? Check out our listing.

Reviewers Needed!

We are looking for help reviewing SWAT peer-reviewed journal papers from the community. Please sign up as a volunteer.

Italy Conference 2015


The 2015 SWAT Conference will be held in Pula, Sardinia, Italy June 22-26, 2015. Visit the conference website to register and learn more.

Japan Conference 2015


The International SWAT-Asia Conference IV will be held in Tsukuba, Japan October 19-23, 2015. Visit the conference website to learn more.

The Soil and Water Assessment Tool (SWAT) is a public domain model jointly developed by USDA Agricultural Research Service (USDA-ARS) and Texas A&M AgriLife Research, part of The Texas A&M University System. SWAT is a small watershed to river basin-scale model 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. Read our fact sheet and disclaimer.