In Greek mythology, the Anemoi, or the Winds, were the four sons of the dawn goddess, Eos, and the god of dusk, Astraeus. They each represented a different directional wind: North, East, South, and West. Zephyrus, the gentle west wind, was the most benevolent of the four and the only one that featured prominently in myth. The other three, Boreas (north wind), Notus (south wind), and Eurus (east wind), had few characteristics aside from that of the wind they controlled. Boreas appeared sometimes in myths, but as he was identified with the cold north, demigods would rather talk to Zephyrus for help.
Of the four chief Anemoi, Boreas was the north wind and bringer of cold winter air; Notus was the south wind and bringer of the storms of late summer and autumn; Zephyrus was the west wind and bringer of light spring and early summer breezes; and Eurus, the east wind, was not associated with any of the three Greek seasons, and is the only one of these four Anemoi not mentioned in Hesiod's Theogony or in the Orphic Hymns. Additionally, four lesser Anemoi were sometimes referenced, representing the northeast, southeast, northwest, and southwest winds.
- Boreas - God of the North Wind and Winter
- Notus - God of the South Wind and Summer
- Eurus - God of the East Wind and Autumn
- Zephyrus - God of the West Wind and Spring
The Winds were mentioned as defending Olympus from aerial attack by Kronos and the Titan Army. The ability of the gods to instantly teleport from one location to another is a form of air travel, and therefore the Winds are able to prevent the Titans from transporting themselves to Olympus from afar. They also almost blew Blackjack away before he tells them that he was on Percy's side.
The North Wind god, Boreas, and his children appear when Jason Grace was trying to find storm spirits so they could guide them to Hera's prison. Later, Aeolus appears and initially was going to let them go and continue their quest, but Khione tells him to kill them. The heroes barely escaped with the help of Mellie, a Wind Nymph. It's revealed that the Wind gods have allied themselves to Gaea, and so the seven must leave for Greece on the Summer Solstice when they are at their weakest.
Jason and Nico di Angelo encounter Favonius in Split, who leads them to Cupid so that they may obtain the scepter. After encountering Boreas's children, Nico, Gleeson Hedge, Jason, Piper McLean, Frank Zhang, and Hazel Levesque land in Notus' palace, where he speaks with Jason constantly about choosing between the two camps while shifting between Greek and Roman forms.
After the civil war is stopped and the gods Greek and Roman aspects settle down, the four wind gods pull Zeus's chariot into battle.
- Presumably possesses the standard powers of a god.
- Are able to move at incredible speeds, even faster than the gods' teleportation powers.
- Each Anemos is able to control powers of their respective season; for example Boreas can control all things having to do with winter.