diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 4698e144293..1229dc97925 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -58,6 +58,9 @@ jobs:
             python-version: "3.10"
             os: ubuntu-latest
           # Latest python version:
+          - env: "all-but-numba"
+            python-version: "3.12"
+            os: ubuntu-latest
           - env: "all-but-dask"
             # Not 3.12 because of pint
             python-version: "3.11"
diff --git a/ci/requirements/all-but-numba.yml b/ci/requirements/all-but-numba.yml
new file mode 100644
index 00000000000..61f64a176af
--- /dev/null
+++ b/ci/requirements/all-but-numba.yml
@@ -0,0 +1,54 @@
+name: xarray-tests
+channels:
+  - conda-forge
+  - nodefaults
+dependencies:
+  # Pin a "very new numpy" (updated Sept 24, 2024)
+  - numpy>=2.1.1
+  - aiobotocore
+  - array-api-strict
+  - boto3
+  - bottleneck
+  - cartopy
+  - cftime
+  - dask-core
+  - dask-expr # dask raises a deprecation warning without this, breaking doctests
+  - distributed
+  - flox
+  - fsspec
+  - h5netcdf
+  - h5py
+  - hdf5
+  - hypothesis
+  - iris
+  - lxml # Optional dep of pydap
+  - matplotlib-base
+  - nc-time-axis
+  - netcdf4
+  # numba, sparse, numbagg, numexpr often conflicts with newer versions of numpy.
+  # This environment helps us test xarray with the latest versions
+  # of numpy
+  # - numba
+  # - numbagg
+  # - numexpr
+  # - sparse
+  - opt_einsum
+  - packaging
+  - pandas
+  # - pint>=0.22
+  - pip
+  - pooch
+  - pre-commit
+  - pyarrow # pandas raises a deprecation warning without this, breaking doctests
+  - pydap
+  - pytest
+  - pytest-cov
+  - pytest-env
+  - pytest-xdist
+  - pytest-timeout
+  - rasterio
+  - scipy
+  - seaborn
+  - toolz
+  - typing_extensions
+  - zarr