How to shiny hunt Dewgong.

The fastest known Dewgong shiny hunt is Overworld spawn at Seafoam Islands 1f in Let's Go Pikachu — roughly 3.0 hours of active hunting. Every other game and route is ranked below.

Dewgong

44 shiny-huntable encounters

Best huntOverworld spawn

Seafoam Islands 1f

Let's Go Pikachu

3.0 hr

estimated time to shiny

Encounter rate: 100%
Shiny odds: 1/1365
Encounters: 1,365
Level: 39–44

Catch Combo + Lure stacks to roughly 1/273 with the charm.

#23.0 hr

Seafoam Islands 1f

Let's Go Eevee

Method: Overworld spawn
Encounter rate: 100%
Shiny odds: 1/1365

#33.0 hr

Seafoam Islands B1f

Let's Go Pikachu

Method: Overworld spawn
Encounter rate: 100%
Shiny odds: 1/1365

Catch Combo + Lure stacks to roughly 1/273 with the charm.

#43.0 hr

Seafoam Islands B1f

Let's Go Eevee

Method: Overworld spawn
Encounter rate: 100%
Shiny odds: 1/1365

#	Game	Location	Method	Rate	Shiny odds	Encounters	Est. time
1	Let's Go Pikachu	Seafoam Islands 1f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
2	Let's Go Eevee	Seafoam Islands 1f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
3	Let's Go Pikachu	Seafoam Islands B1f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
4	Let's Go Eevee	Seafoam Islands B1f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
5	Let's Go Pikachu	Seafoam Islands B2f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
6	Let's Go Eevee	Seafoam Islands B2f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
7	Let's Go Pikachu	Seafoam Islands B3f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
8	Let's Go Eevee	Seafoam Islands B3f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
9	Let's Go Pikachu	Seafoam Islands B4f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
10	Let's Go Eevee	Seafoam Islands B4f	Overworld spawnLv 39–44	100%	1/1365	1,365	3.0 hr
11	X	Friend Safari Ice Friend Safari Slot 3	Walking in grassLv 30	33%	1/1365	4,136	12.6 hr
12	Y	Friend Safari Ice Friend Safari Slot 3	Walking in grassLv 30	33%	1/1365	4,136	12.6 hr
13	Platinum	Sinnoh Victory Road Inside B1f	SurfingLv 35–55	30%	1/8192	27,307	3.8 days
14	HeartGold	Seafoam Islands B3f	Walking in grassLv 35–36	24%	1/8192	34,133	4.3 days
15	SoulSilver	Seafoam Islands B3f	Walking in grassLv 35–36	24%	1/8192	34,133	4.3 days
16	HeartGold	Seafoam Islands B4f	Walking in grassLv 37–38	24%	1/8192	34,133	4.3 days
17	SoulSilver	Seafoam Islands B4f	Walking in grassLv 37–38	24%	1/8192	34,133	4.3 days
18	FireRed	Icefall Cave Entrance	Walking in grassLv 49–53	20%	1/8192	40,960	5.2 days
19	LeafGreen	Icefall Cave Entrance	Walking in grassLv 49–53	20%	1/8192	40,960	5.2 days
20	FireRed	Icefall Cave Waterfall	Walking in grassLv 49–53	20%	1/8192	40,960	5.2 days
21	LeafGreen	Icefall Cave Waterfall	Walking in grassLv 49–53	20%	1/8192	40,960	5.2 days
22	Platinum	Sinnoh Victory Road Inside B1f	Walking in grassLv 48–50	15%	1/8192	54,613	7.0 days
23	Black 2	Giant Chasm	Rippling waterLv 40–50	10%	1/2731	27,310	7.0 days
24	White 2	Giant Chasm	Rippling waterLv 40–50	10%	1/2731	27,310	7.0 days
25	Black 2	Seaside Cave 1f	Rippling waterLv 30–40	10%	1/2731	27,310	7.0 days
26	White 2	Seaside Cave 1f	Rippling waterLv 30–40	10%	1/2731	27,310	7.0 days
27	Scarlet: Indigo Disk	Polar Biome	Overworld spawnLv 10–60	1.59%	1/1365	85,849	7.9 days
28	Violet: Indigo Disk	Polar Biome	Overworld spawnLv 10–60	1.59%	1/1365	85,849	7.9 days
29	FireRed	Seafoam Islands B4f	Walking in grassLv 34–36	10%	1/8192	81,920	10.4 days
30	LeafGreen	Seafoam Islands B4f	Walking in grassLv 34–36	10%	1/8192	81,920	10.4 days
31	FireRed	Seafoam Islands B3f	Walking in grassLv 32–34	5%	1/8192	163,840	20.9 days
32	LeafGreen	Seafoam Islands B3f	Walking in grassLv 32–34	5%	1/8192	163,840	20.9 days
33	Black	Giant Chasm	Rippling waterLv 35–70	10%	1/8192	81,920	20.9 days
34	White	Giant Chasm	Rippling waterLv 35–70	10%	1/8192	81,920	20.9 days
35	Black	Giant Chasm Forest Cave	Rippling waterLv 35–70	10%	1/8192	81,920	20.9 days
36	White	Giant Chasm Forest Cave	Rippling waterLv 35–70	10%	1/8192	81,920	20.9 days
37	Diamond	Sinnoh Sea Route 226	SurfingLv 40–55	5%	1/8192	163,840	22.8 days
38	Diamond	Sinnoh Sea Route 230	SurfingLv 40–55	5%	1/8192	163,840	22.8 days
39	FireRed	Seafoam Islands B3f	SurfingLv 35–40	5%	1/8192	163,840	22.8 days
40	LeafGreen	Seafoam Islands B3f	SurfingLv 35–40	5%	1/8192	163,840	22.8 days
41	FireRed	Seafoam Islands B4f	SurfingLv 35–40	5%	1/8192	163,840	22.8 days
42	LeafGreen	Seafoam Islands B4f	SurfingLv 35–40	5%	1/8192	163,840	22.8 days
43	FireRed	Icefall Cave Entrance	SurfingLv 35–40	5%	1/8192	163,840	22.8 days
44	LeafGreen	Icefall Cave Entrance	SurfingLv 35–40	5%	1/8192	163,840	22.8 days