diff --git a/backend/src/Controller/ForecastController.php b/backend/src/Controller/ForecastController.php
new file mode 100644
index 0000000..faa55aa
--- /dev/null
+++ b/backend/src/Controller/ForecastController.php
@@ -0,0 +1,95 @@
+<?php
+
+namespace App\Controller;
+
+use Doctrine\DBAL\Connection;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\Routing\Attribute\Route;
+
+#[Route('/api/forecasts', name: 'api_forecasts_')]
+class ForecastController extends AbstractController
+{
+    public function __construct(private Connection $connection) {}
+
+    /**
+     * GET /api/forecasts
+     *
+     * Paramètres optionnels :
+     *   ?bbox=minLon,minLat,maxLon,maxLat   filtre spatial PostGIS
+     *   ?horizon=6                           filtre sur time_horizon (6, 12, 24, 48)
+     */
+    #[Route('', name: 'collection', methods: ['GET'])]
+    public function collection(Request $request): JsonResponse
+    {
+        $sql = <<<SQL
+            SELECT
+                f.id,
+                f.time_horizon      AS "timeHorizon",
+                f.valid_at          AS "validAt",
+                f.computed_at       AS "computedAt",
+                f.model_version     AS "modelVersion",
+                f.confidence,
+                f.source_observation_id AS "sourceObservationId",
+                ST_AsGeoJSON(f.geometry)::json AS geometry
+            FROM sargassum_forecast f
+            WHERE 1=1
+        SQL;
+
+        $params = [];
+
+        $bboxParam = $request->query->get('bbox');
+        if ($bboxParam !== null) {
+            $parts = array_map('floatval', explode(',', $bboxParam));
+            if (count($parts) === 4) {
+                [$minLon, $minLat, $maxLon, $maxLat] = $parts;
+                $sql .= ' AND ST_Intersects(f.geometry, ST_MakeEnvelope(:minLon, :minLat, :maxLon, :maxLat, 4326))';
+                $params['minLon'] = $minLon;
+                $params['minLat'] = $minLat;
+                $params['maxLon'] = $maxLon;
+                $params['maxLat'] = $maxLat;
+            }
+        }
+
+        $horizonParam = $request->query->get('horizon');
+        if ($horizonParam !== null && in_array((int) $horizonParam, [6, 12, 24, 48], true)) {
+            $sql .= ' AND f.time_horizon = :horizon';
+            $params['horizon'] = (int) $horizonParam;
+        }
+
+        $sql .= ' ORDER BY f.valid_at DESC LIMIT 50';
+
+        $rows = $this->connection->fetchAllAssociative($sql, $params);
+
+        foreach ($rows as &$row) {
+            $row['geometry'] = $row['geometry'] ? json_decode($row['geometry'], true) : null;
+        }
+
+        return $this->json(['items' => $rows, 'total' => count($rows)]);
+    }
+
+    /**
+     * GET /api/forecasts/{id}
+     */
+    #[Route('/{id}', name: 'item', methods: ['GET'])]
+    public function item(string $id): JsonResponse
+    {
+        $row = $this->connection->fetchAssociative(
+            'SELECT f.id, f.time_horizon AS "timeHorizon", f.valid_at AS "validAt",
+                    f.computed_at AS "computedAt", f.model_version AS "modelVersion",
+                    f.confidence, f.source_observation_id AS "sourceObservationId",
+                    ST_AsGeoJSON(f.geometry)::json AS geometry
+             FROM sargassum_forecast f WHERE f.id = :id',
+            ['id' => $id]
+        );
+
+        if ($row === false) {
+            return $this->json(['error' => 'Forecast not found'], 404);
+        }
+
+        $row['geometry'] = $row['geometry'] ? json_decode($row['geometry'], true) : null;
+
+        return $this->json($row);
+    }
+}
diff --git a/backend/src/Entity/SargassumForecast.php b/backend/src/Entity/SargassumForecast.php
index 2fd16f0..7bf6971 100644
--- a/backend/src/Entity/SargassumForecast.php
+++ b/backend/src/Entity/SargassumForecast.php
@@ -2,9 +2,6 @@
 
 namespace App\Entity;
 
-use ApiPlatform\Metadata\ApiResource;
-use ApiPlatform\Metadata\Get;
-use ApiPlatform\Metadata\GetCollection;
 use App\Repository\SargassumForecastRepository;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Bridge\Doctrine\Types\UuidType;
@@ -13,13 +10,7 @@ use Symfony\Component\Uid\Uuid;
 #[ORM\Entity(repositoryClass: SargassumForecastRepository::class)]
 #[ORM\Index(columns: ['valid_at'], name: 'idx_forecast_valid_at')]
 #[ORM\Index(columns: ['time_horizon'], name: 'idx_forecast_horizon')]
-#[ApiResource(
-    shortName: 'Forecast',
-    operations: [
-        new GetCollection(),
-        new Get(),
-    ]
-)]
+// Routes gérées par ForecastController (filtres bbox + horizon)
 class SargassumForecast
 {
     #[ORM\Id]