Where to find Poliwhirl in Sun, Moon, Ultra Sun & Ultra Moon

NPC Trade: Konikoni City (Only in Sun & Moon)
SOS Encounter: Malie Garden (10%)
Walk: Malie Garden (20%, Only in Ultra Sun & Ultra Moon)

• Konikoni City — NPC Trade
• Malie Garden — SOS Encounter, Walk

Poliwhirl also appears in

• Poliwhirl location in Scarlet & Violet – The Teal Mask
• Poliwhirl location in Brilliant Diamond & Shining Pearl
• Poliwhirl location in Sword & Shield
• Poliwhirl location in Black & White / Black 2 & White 2
• Poliwhirl location in HeartGold & SoulSilver
• Poliwhirl location in Diamond, Pearl & Platinum
• Poliwhirl location in FireRed & LeafGreen (Kanto)
• Poliwhirl location in FireRed & LeafGreen (Sevii Islands)
• Poliwhirl location in Gold, Silver & Crystal
• Poliwhirl location in Red, Blue & Yellow

How to get Poliwhirl in Sun, Moon, Ultra Sun & Ultra Moon

Its base catch rate is 120 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Dive Ball.

Evolution: Poliwag → Poliwhirl (Level 25) → Poliwrath (Water Stone) · Politoed.

Poliwhirl in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)