diff --git a/.github/workflows/beam_PostCommit_Python_Arm.yml b/.github/workflows/beam_PostCommit_Python_Arm.yml
index ee7745c7a6cf..d6841ae137ab 100644
--- a/.github/workflows/beam_PostCommit_Python_Arm.yml
+++ b/.github/workflows/beam_PostCommit_Python_Arm.yml
@@ -54,7 +54,8 @@ jobs:
   beam_PostCommit_Python_Arm:
     name: ${{ matrix.job_name }} ${{ matrix.python_version }}
     runs-on: [self-hosted, ubuntu-24.04, main]
-    timeout-minutes: 480
+    # Python 3.14 multiarch container builds take much longer than other versions.
+    timeout-minutes: ${{ matrix.python_version == '3.14' && 600 || 480 }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/beam_Python_ValidatesContainer_Dataflow_ARM.yml b/.github/workflows/beam_Python_ValidatesContainer_Dataflow_ARM.yml
index df545d6b0d5e..20c7988b1b94 100644
--- a/.github/workflows/beam_Python_ValidatesContainer_Dataflow_ARM.yml
+++ b/.github/workflows/beam_Python_ValidatesContainer_Dataflow_ARM.yml
@@ -62,6 +62,8 @@ jobs:
       startsWith(github.event.comment.body, 'Run Python ValidatesContainer Dataflow ARM')
 
     runs-on: ubuntu-22.04
+    # Python 3.14 multiarch container builds compile many deps from source on arm64.
+    timeout-minutes: ${{ matrix.python_version == '3.14' && 300 || 120 }}
     steps:
       - uses: actions/checkout@v7
       - name: Free Disk Space (Ubuntu)
diff --git a/.github/workflows/update_python_dependencies.yml b/.github/workflows/update_python_dependencies.yml
index 36752bc3c65a..358a260d6300 100644
--- a/.github/workflows/update_python_dependencies.yml
+++ b/.github/workflows/update_python_dependencies.yml
@@ -49,6 +49,7 @@ jobs:
     runs-on: [self-hosted, ubuntu-24.04, main]
     needs: set-properties
     name: Update Python Dependencies
+    timeout-minutes: 180
     steps:
       - name: Checkout code
         uses: actions/checkout@v7