diff --git a/cypress/integration/origin-visits.spec.js b/cypress/integration/origin-visits.spec.js
--- a/cypress/integration/origin-visits.spec.js
+++ b/cypress/integration/origin-visits.spec.js
@@ -75,4 +75,20 @@
         searchInCalendar(getTime($el.text()));
       });
   });
+
+  it('should close calendar popover when leaving day', function() {
+    cy.get('#swh-last-visit > .swh-visit-full')
+      .then(($el) => {
+        const date = getTime($el.text());
+        searchInCalendar(date);
+        cy.contains('.month', date.monthName)
+          .find('.day-content')
+          .eq(date.date - 1)
+          .trigger('mouseout');
+
+        cy.get('.popover')
+          .should('not.be.visible');
+      });
+  });
+
 });
diff --git a/swh/web/assets/src/bundles/origin/visits-calendar.js b/swh/web/assets/src/bundles/origin/visits-calendar.js
--- a/swh/web/assets/src/bundles/origin/visits-calendar.js
+++ b/swh/web/assets/src/bundles/origin/visits-calendar.js
@@ -15,7 +15,7 @@
 
 function closePopover() {
   if (currentPopover) {
-    $(currentPopover).popover('hide');
+    $(currentPopover).popover('dispose');
     currentPopover = null;
   }
 }
@@ -121,6 +121,19 @@
           container: 'body',
           html: true,
           content: content
+        }).on('mouseleave', () => {
+          if (!$('.popover:hover').length) {
+            // close popover when leaving day in calendar
+            // except if the pointer is hovering it
+            closePopover();
+          }
+        });
+
+        $(e.element).on('shown.bs.popover', () => {
+          $('.popover').mouseleave(() => {
+            // close popover when pointer leaves it
+            closePopover();
+          });
         });
 
         $(e.element).popover('show');
@@ -128,12 +141,6 @@
       }
     }
   });
-  $('#swh-visits-timeline').mouseenter(() => {
-    closePopover();
-  });
-  $('#swh-visits-list').mouseenter(() => {
-    closePopover();
-  });
   $('#swh-visits-calendar.calendar table td').css('width', maxSize + 'px');
   $('#swh-visits-calendar.calendar table td').css('height', maxSize + 'px');
   $('#swh-visits-calendar.calendar table td').css('padding', '0px');