User blog comment:FairyRaven/Fairy Tail Chapter 357: The Nine Demon Gates, Review and Commentary/@comment-117.232.36.106-20131026103016/@comment-7418318-20131026104253

In japanese an 'a' at the end in common in both male and female names.

The only end syllable that is almost exclusive to female names is 'ko'.

So while Tempesta might sound female in western countries, the same does not hold true for Japan.