southeasterly (suomeksi)

kaakkoinen (a: situated in, or pointing to, the southeast / coming from the southeast)
kaakkois- (a: situated in, or pointing to, the southeast / coming from the southeast)
voimakas kaakkoistuuli (s: wind or storm / kaakkoistuuli / strong wind)
kaakkoismyrsky (s: wind or storm / kaakkoistuulikaakkoismyrsky / storm)
kaakossa (d: from the southeast)
kaakosta (d: from the southeast)
kaakkoon (d: from the southeast / kaakkoon / noun cases)