diff --git a/xarray/core/common.py b/xarray/core/common.py
index a762f7fbed9..d23428eca62 100644
--- a/xarray/core/common.py
+++ b/xarray/core/common.py
@@ -1069,7 +1069,7 @@ def where(self, cond, other=dtypes.NA, drop: bool = False):
 
         Returns
         -------
-        Same type as caller.
+        Same xarray type as caller, with dtype float64.
 
         Examples
         --------