diff --git a/packages/sveltekit/src/vite/sourceMaps.ts b/packages/sveltekit/src/vite/sourceMaps.ts
--- a/packages/sveltekit/src/vite/sourceMaps.ts
+++ b/packages/sveltekit/src/vite/sourceMaps.ts
@@ -221,8 +221,12 @@
             '',
           );
           await fs.promises.writeFile(mapFile, cleanedMapContent);
-        } catch {
-          // Map file doesn't exist, nothing to clean
+        } catch (e) {
+          const isKnownError = e instanceof Error && e.message.includes('ENOENT: no such file or directory, open');
+          if (debug && !isKnownError) {
+            // eslint-disable-next-line no-console
+            console.error('[Source Maps Plugin] error while cleaning source map', mapFile, e);
+          }
         }
       }
 

diff --git a/packages/sveltekit/test/vite/sourceMaps.test.ts b/packages/sveltekit/test/vite/sourceMaps.test.ts
--- a/packages/sveltekit/test/vite/sourceMaps.test.ts
+++ b/packages/sveltekit/test/vite/sourceMaps.test.ts
@@ -1,4 +1,5 @@
 import { sentryVitePlugin } from '@sentry/vite-plugin';
+import * as fs from 'fs';
 import type { Plugin } from 'vite';
 import * as vite from 'vite';
 import { beforeEach, describe, expect, it, vi } from 'vitest';
@@ -37,6 +38,20 @@
   };
 });
 
+vi.mock('fs', async () => {
+  const actual = (await vi.importActual('fs')) as typeof fs;
+  return {
+    ...actual,
+    existsSync: vi.fn(actual.existsSync),
+    readdirSync: vi.fn(actual.readdirSync),
+    promises: {
+      ...actual.promises,
+      readFile: vi.fn(actual.promises.readFile),
+      writeFile: vi.fn(actual.promises.writeFile),
+    },
+  };
+});
+
 beforeEach(() => {
   vi.clearAllMocks();
 });
@@ -212,6 +227,57 @@
     expect(consoleWarnSpy).toHaveBeenCalledWith(expect.stringContaining('Failed to upload source maps'));
     expect(consoleLogSpy).toHaveBeenCalled();
   });
+
+  it('handles missing map files gracefully during source map cleaning', async () => {
+    const consoleErrorSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
+
+    vi.mocked(fs.existsSync).mockReturnValueOnce(true);
+    vi.mocked(fs.readdirSync).mockReturnValueOnce([{ name: 'test.js', isDirectory: () => false } as any]);
+    vi.mocked(fs.promises.readFile).mockRejectedValueOnce(
+      Object.assign(new Error('ENOENT: no such file or directory, open'), { code: 'ENOENT' }),
+    );
+
+    const plugin = await getSentryViteSubPlugin('sentry-sveltekit-debug-id-upload-plugin');
+
+    // @ts-expect-error this function exists!
+    plugin.configResolved({ build: { ssr: true } });
+    // @ts-expect-error this function exists!
+    await plugin.closeBundle();
+
+    expect(consoleErrorSpy).not.toHaveBeenCalled();
+  });
+
+  it('logs unexpected errors during source map cleaning when debug is enabled', async () => {
+    const consoleErrorSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
+
+    vi.mocked(fs.existsSync).mockReturnValueOnce(true);
+    vi.mocked(fs.readdirSync).mockReturnValueOnce([{ name: 'test.js', isDirectory: () => false } as any]);
+    vi.mocked(fs.promises.readFile).mockRejectedValueOnce(new Error('Permission denied'));
+
+    const plugins = await makeCustomSentryVitePlugins(
+      {
+        authToken: 'token',
+        org: 'org',
+        project: 'project',
+        adapter: 'other',
+        debug: true,
+      },
+      { kit: {} },
+    );
+
+    const plugin = plugins.find(p => p.name === 'sentry-sveltekit-debug-id-upload-plugin');
+
+    // @ts-expect-error this function exists!
+    plugin.configResolved({ build: { ssr: true } });
+    // @ts-expect-error this function exists!
+    await plugin.closeBundle();
+
+    expect(consoleErrorSpy).toHaveBeenCalledWith(
+      expect.stringContaining('[Source Maps Plugin] error while cleaning source map'),
+      expect.any(String),
+      expect.any(Error),
+    );
+  });
 });
 
 describe('_getUpdatedSourceMapSettings', () => {