diff --git a/src/field/arena.ts b/src/field/arena.ts
index efbcdcd6727..cb045cc76ac 100644
--- a/src/field/arena.ts
+++ b/src/field/arena.ts
@@ -639,9 +639,13 @@ export class Arena {
   }
 
   /**
-   * Clears terrain and arena tags when entering new biome or trainer battle.
+   * Clears weather, terrain and arena tags when entering new biome or trainer battle.
    */
   resetArenaEffects(): void {
+    // Don't reset weather if a Biome's permanent weather is active
+    if (this.weather?.turnsLeft !== 0) {
+      this.trySetWeather(WeatherType.NONE, false);
+    }
     this.trySetTerrain(TerrainType.NONE, false, true);
     this.removeAllTags();
   }