From inter- +‎ latitude +‎ -in- +‎ -al.

interlatitudinal (not comparable)

1. Between latitudes.
   • 2015 June 26, Groves B. Dixon, “Genomic determinants of coral heat tolerance across latitudes"”, in Science, volume 348, →DOI, pages 1460–1462:

     Moreover, two genomic regions strongly responded to selection for thermal tolerance in interlatitudinal crosses.