diff --git a/doc/classes/Viewport.xml b/doc/classes/Viewport.xml
index c9d831e28..5234e747c 100644
--- a/doc/classes/Viewport.xml
+++ b/doc/classes/Viewport.xml
@@ -211,6 +211,7 @@
 		<member name="msaa" type="int" setter="set_msaa" getter="get_msaa" enum="Viewport.MSAA" default="0">
 			The multisample anti-aliasing mode. A higher number results in smoother edges at the cost of significantly worse performance. A value of 4 is best unless targeting very high-end systems.
 		</member>
+		<member name="physics_interpolation_mode" type="int" setter="set_physics_interpolation_mode" getter="get_physics_interpolation_mode" overrides="Node" enum="Node.PhysicsInterpolationMode" default="2" />
 		<member name="physics_object_picking" type="bool" setter="set_physics_object_picking" getter="get_physics_object_picking" default="false">
 			If [code]true[/code], the objects rendered by viewport become subjects of mouse picking process.
 		</member>
diff --git a/scene/main/viewport.cpp b/scene/main/viewport.cpp
index e42c34f6f..1ad260ac7 100644
--- a/scene/main/viewport.cpp
+++ b/scene/main/viewport.cpp
@@ -3469,6 +3469,13 @@ Viewport::Viewport() {
 	local_input_handled = false;
 	handle_input_locally = true;
 	physics_last_id = 0; //ensures first time there will be a check
+
+	// Physics interpolation mode for viewports is a special case.
+	// Typically viewports will be housed within Controls,
+	// and Controls default to PHYSICS_INTERPOLATION_MODE_OFF.
+	// Viewports can thus inherit physics interpolation OFF, which is unexpected.
+	// Setting to ON allows each viewport to have a fresh interpolation state.
+	set_physics_interpolation_mode(Node::PHYSICS_INTERPOLATION_MODE_ON);
 }
 
 Viewport::~Viewport() {