diff --git a/front/src/app/embalse/[embalse]/page.tsx b/front/src/app/embalse/[embalse]/page.tsx
index 1bca99e..5b6bf34 100644
--- a/front/src/app/embalse/[embalse]/page.tsx
+++ b/front/src/app/embalse/[embalse]/page.tsx
@@ -36,7 +36,6 @@ export default async function EmbalseDetallePage({ params }: Props) {
   const { embalse } = await params;
   const embalseDoc = await getEmbalseBySlugCached(embalse);
   const embalseInfo = await getReservoirInfoBySlugCached(embalse);
-  const actualYear = new Date().getFullYear();
   const actualMonth = new Date().getMonth(); // return month 0-11
 
   if (!embalseDoc) {
@@ -52,7 +51,6 @@ export default async function EmbalseDetallePage({ params }: Props) {
   const averageHistoricalData = await getAverageHistoricalByMonthCached(
     embalseDoc.nombre,
     actualMonth + 1,
-    actualYear - 10, // 10 years ago
   ).then(mapHistoricalReservoirToViewModel);
 
   return (
diff --git a/front/src/pods/embalse/api/embalse.api-model.ts b/front/src/pods/embalse/api/embalse.api-model.ts
index 0db2038..b5ab28e 100644
--- a/front/src/pods/embalse/api/embalse.api-model.ts
+++ b/front/src/pods/embalse/api/embalse.api-model.ts
@@ -20,6 +20,5 @@ export interface ReservoirLastYearModel {
 export interface HistoricalAverageReservoir {
   embalse: string;
   mes: number;
-  año: number;
   promedio_agua_actual: number;
 }
diff --git a/front/src/pods/embalse/api/embalse.api.ts b/front/src/pods/embalse/api/embalse.api.ts
index 03b09c1..6bac2d0 100644
--- a/front/src/pods/embalse/api/embalse.api.ts
+++ b/front/src/pods/embalse/api/embalse.api.ts
@@ -88,13 +88,11 @@ export const getAverageHistoricalByMonthCached = unstable_cache(
   async (
     reservoirName: string,
     month: number,
-    year: number,
   ): Promise<HistoricalAverageReservoir> => {
     try {
       const historicalStatistics = await getAverageHistoricalByMonth(
         reservoirName,
         month,
-        year,
       );
 
       if (!historicalStatistics) {
diff --git a/front/src/pods/embalse/components/chart/chart-legend.tsx b/front/src/pods/embalse/components/chart/chart-legend.tsx
index 3f110a3..04bacb5 100644
--- a/front/src/pods/embalse/components/chart/chart-legend.tsx
+++ b/front/src/pods/embalse/components/chart/chart-legend.tsx
@@ -40,8 +40,7 @@ export const ChartLegend: React.FC<Props> = ({
           <div className="mx-auto h-0.5 w-10 border-t-4 border-dotted border-(--line-average-last-ten-years)" />
           <div>
             <span>
-              {monthsNames[dataTenYearsAgo.month - 1]} de {dataTenYearsAgo.year}
-              :
+              Media {monthsNames[dataTenYearsAgo.month - 1]} (10 años):
             </span>
             <span className="pl-1">{dataTenYearsAgo.average} Hm³</span>
           </div>
diff --git a/front/src/pods/embalse/components/chart/history-chart.tsx b/front/src/pods/embalse/components/chart/history-chart.tsx
index 5ed5e61..7c2176b 100644
--- a/front/src/pods/embalse/components/chart/history-chart.tsx
+++ b/front/src/pods/embalse/components/chart/history-chart.tsx
@@ -100,9 +100,7 @@ export const HistoryChart: React.FC<ChartModel> = ({
           y={labelY}
           textAnchor="middle"
           fontSize="16px"
-          fill={
-            isOutside ? "var(--color-base-content)" : "var(--color-brand-100)"
-          }
+          fill="var(--color-brand-100)"
           fontWeight="900"
         >
           {reservoirData.currentVolume} Hm³
diff --git a/front/src/pods/embalse/embalse.mapper.spec.ts b/front/src/pods/embalse/embalse.mapper.spec.ts
index 07ba85e..09cca7e 100644
--- a/front/src/pods/embalse/embalse.mapper.spec.ts
+++ b/front/src/pods/embalse/embalse.mapper.spec.ts
@@ -231,7 +231,6 @@ describe("mapReservoirLastYearToViewModel", () => {
 describe("mapHistoricalReservoirToViewModel", () => {
   it("should accurately map the fields for the last ten years", () => {
     const mockHistoricalData: historicalApi.HistoricalAverageReservoir = {
-      año: 2026,
       embalse: "Viñuela, La",
       mes: 3,
       promedio_agua_actual: 149.21,
@@ -241,7 +240,6 @@ describe("mapHistoricalReservoirToViewModel", () => {
       mapHistoricalReservoirToViewModel(mockHistoricalData);
 
     const expectResult = {
-      year: 2026,
       nameReservoir: "Viñuela, La",
       month: 3,
       average: 149.21,
diff --git a/front/src/pods/embalse/embalse.mapper.ts b/front/src/pods/embalse/embalse.mapper.ts
index abe6866..ace57bd 100644
--- a/front/src/pods/embalse/embalse.mapper.ts
+++ b/front/src/pods/embalse/embalse.mapper.ts
@@ -87,7 +87,6 @@ export const mapHistoricalReservoirToViewModel = (
   return Boolean(apiData)
     ? {
         nameReservoir: apiData.embalse,
-        year: apiData.año,
         month: apiData.mes,
         average: apiData.promedio_agua_actual,
       }
diff --git a/front/src/pods/embalse/embalse.repository.ts b/front/src/pods/embalse/embalse.repository.ts
index d97312c..239cdf0 100644
--- a/front/src/pods/embalse/embalse.repository.ts
+++ b/front/src/pods/embalse/embalse.repository.ts
@@ -58,17 +58,15 @@ export const getAverageLastYearByMonth = async (
 };
 
 /**
- * Obtain the average monthly and annual values ​​received per parameter
+ * Obtain the average for a given month across the last 10 years.
  *
  * @param name:string Reservoir name
  * @param month:number Month number (1-12)
- * @param year:number Year number (yyyy)
  * @returns HistoricalAverageReservoir:
  */
 export const getAverageHistoricalByMonth = async (
   reservoirName: string,
   month: number,
-  year: number,
 ): Promise<ApiModel.HistoricalAverageReservoir> => {
   try {
     const db = await getDb();
@@ -79,14 +77,26 @@ export const getAverageHistoricalByMonth = async (
       .aggregate<ApiModel.HistoricalAverageReservoir>([
         { $match: { embalse: reservoirName } },
         { $unwind: "$meses" },
-        { $match: { "meses.año": year, "meses.mes": month } },
+        {
+          $match: {
+            "meses.mes": month,
+            "meses.año": { $lt: new Date().getFullYear() },
+          },
+        },
+        {
+          $group: {
+            _id: null,
+            embalse: { $first: "$embalse" },
+            mes: { $first: "$meses.mes" },
+            promedio_agua_actual: { $avg: "$meses.promedio_agua_actual" },
+          },
+        },
         {
           $project: {
             _id: 0,
             embalse: 1,
-            año: "$meses.año",
-            mes: "$meses.mes",
-            promedio_agua_actual: "$meses.promedio_agua_actual",
+            mes: 1,
+            promedio_agua_actual: { $round: ["$promedio_agua_actual", 2] },
           },
         },
       ])
diff --git a/front/src/pods/embalse/embalse.vm.ts b/front/src/pods/embalse/embalse.vm.ts
index 536189e..eef0297 100644
--- a/front/src/pods/embalse/embalse.vm.ts
+++ b/front/src/pods/embalse/embalse.vm.ts
@@ -68,7 +68,7 @@ export const createEmptyDataLastYearModel = (): DataLastYearModel => ({
 export interface HistoricalAverageReservoir {
   nameReservoir: string;
   month: number;
-  year: number;
+  year?: number;
   average: number;
 }
 export const createEmptyHistoricalAverageReservoir =