diff --git a/src/View/WeatherParameters/TableDefault.py b/src/View/WeatherParameters/TableDefault.py
index 8c472483..c4b55b9a 100644
--- a/src/View/WeatherParameters/TableDefault.py
+++ b/src/View/WeatherParameters/TableDefault.py
@@ -67,6 +67,16 @@ class WeatherParametersTableDefaultModel(PamhyrTableModel):
 
         return QVariant()
 
+    def headerData(self, section, orientation, role):
+        if (orientation == Qt.Orientation.Horizontal and
+                self._headers[section] == "value" and
+                role == Qt.ItemDataRole.ToolTipRole):
+            return self._trad["default_values_tooltip"]
+
+        return super(WeatherParametersTableDefaultModel, self).headerData(
+            section, orientation, role
+        )
+
     def setData(self, index, value, role=Qt.EditRole):
         if not index.isValid() or role != Qt.EditRole:
             return False
diff --git a/src/View/WeatherParameters/Window.py b/src/View/WeatherParameters/Window.py
index e03bafda..4730f7e5 100644
--- a/src/View/WeatherParameters/Window.py
+++ b/src/View/WeatherParameters/Window.py
@@ -128,9 +128,19 @@ class WeatherParametersWindow(PamhyrWindow):
         toolBar.addAction(self.action_delete)
         toolBar.addAction(self.action_edit)
 
+        self.time_series_info = QLabel(
+            self._trad["time_series_unavailable"]
+        )
+        self.time_series_info.setWordWrap(True)
+        layout.addWidget(self.time_series_info)
         layout.addWidget(self.table_spec_title)
         layout.addWidget(self.table_spec)
 
+        selected_type = self._wp_acronyms[
+            self._selected_default_row_index
+        ]
+        self.update_time_series_info(selected_type)
+
     def setup_table(self):
         self.table_default = self.find(QTableView, f"tableView")
 
@@ -249,6 +259,7 @@ class WeatherParametersWindow(PamhyrWindow):
         self.enable_actions(tab_enabled)
 
         self.update_table_spec_title(enabled=tab_enabled)
+        self.update_time_series_info(type_selected)
 
         self._table_spec.update_tab_spec(
             type=type_selected, enabled=tab_enabled
@@ -256,6 +267,12 @@ class WeatherParametersWindow(PamhyrWindow):
 
         return self._selected_default_row_index
 
+    def update_time_series_info(self, parameter_type):
+        if hasattr(self, "time_series_info"):
+            self.time_series_info.setVisible(
+                parameter_type in {"ALB", "SC", "CCF"}
+            )
+
     def enable_actions(self, enabled):
         if hasattr(self, "action_add"):
             self.action_add.setEnabled(enabled)
diff --git a/src/View/WeatherParameters/translate.py b/src/View/WeatherParameters/translate.py
index 0ac2f2b3..7f4fc107 100644
--- a/src/View/WeatherParameters/translate.py
+++ b/src/View/WeatherParameters/translate.py
@@ -29,12 +29,24 @@ class WeatherParametersTranslate(MainTranslate):
 
         self._dict["Weather parameters"] = _translate(
             "WeatherParameters", "Weather parameters")
+        self._dict["time_series_unavailable"] = _translate(
+            "WeatherParameters",
+            "Time series are not available for this parameter type."
+        )
+        self._dict["default_values"] = _translate(
+            "WeatherParameters", "Default values"
+        )
+        self._dict["default_values_tooltip"] = _translate(
+            "WeatherParameters",
+            "These values are applied to sections that have not been "
+            "defined using time series."
+        )
 
         self._dict["rk"] = self._dict["unit_rk"]
 
         self._sub_dict["table_headers"] = {
             "name": self._dict["name"],
-            "value": self._dict["value"]
+            "value": self._dict["default_values"]
         }
 
         self._sub_dict["table_headers_spec"] = {