Heavyweight Fishing Islands and Weather Map

There is no published island order in-game, but the rod prices give one away: each island's rod seller stocks a strictly higher price band than the last, from 100 Cash on Beginning Isle to 60M on Amber Isle. The order below follows that price ladder. Two islands sit outside it — Battlefield Isle and Mistpeak Isle have no rod seller at all, which is why players hunting for rods there come up empty.

Weather map

WeatherIslandSecret fish it brings
Thunderstorm Bamboo Isle Scarlet Fish, Elder Scarlet Fish, Crimson Electric Eel
Rainy Fallout Isle Verdant Alligator Gar, Verdant Grouper, Verdant Bonefang
Windy Perch Isle Flying Fish Emperor, Flying Fish Empress
Snowy Frost Isle Reborn Puffer Beast, Frost Kingfish
Foggy Coconut Isle Tigerfang Whale, Heaven Piercer Turtle
Blazing Sun Amber Isle Draconic Koi, Sanguine Fish

All 10 islands, in progression order

#IslandWeatherWhat is there
1 Beginning Isle Starter island. Home of Nanjiang (trait rerolls), Sage Yijiu (skill shop), the Ticket quest giver and the first four rods (100 to 2,000 Cash).
2 Bamboo Isle Thunderstorm Rods from 5,000 to 60,000 Cash. Giang Lao's quest here gives Shadowless Taji Strike. Scarlet Fish, Elder Scarlet Fish and Crimson Electric Eel spawn in Thunderstorm. One of the three Spirit islands.
3 Fallout Isle Rainy Rods from 100,000 to 200,000 Cash. Enzo, the level-1000 boss, is fought here. Verdant Alligator Gar, Verdant Grouper and Verdant Bonefang spawn in Rain.
4 Sovereign's Isle The Grandmaster and Inferno rods, 250,000 to 1.5M Cash. No weather event is listed for this island.
5 Perch Isle Windy The Spine rod line, 1.5M to 4M Cash. Flying Fish Emperor and Empress both spawn in Wind — farm them in the same cycle for the Heaven Piercer recipe.
6 Frost Isle Snowy Gravity rods, 5M to 8M Cash, plus the Cryo Gravity quest. Ha Dieu De gives Sever The Gate v3. Frost Kingfish and Reborn Puffer Beast spawn in Snow. One of the three Spirit islands.
7 Coconut Isle Foggy Thunder Thorn and Soul Thorn rods, 10M and 20M Cash. Bac Minh's quest is here. Tigerfang Whale and Heaven Piercer Turtle spawn in Fog.
8 Amber Isle Blazing Sun The Starlight Rod at 60M Cash. Sanguine Fish and Draconic Koi share Blazing Sun conditions. One of the three Spirit islands.
9 Battlefield Isle No rod seller. Sage Yijiu's five-quest chain, Giang Lao's Ascended Taji Art, Lao Ngo and the Blind Grand Angler are all here — the endgame skill island.
10 Mistpeak Isle No rod seller. Home of the Mountain Fish, which drops Mountain Flip at a 5% rate.

Planning a crafting run

Both 100-Power crafted rods need four fish each, and the weather requirements overlap in useful ways. Flying Fish Emperor and Empress both spawn in Wind on Perch Isle, so one windy cycle covers half the Heaven Piercer recipe. Sanguine Fish and Draconic Koi both spawn in Blazing Sun on Amber Isle, covering half of Pure Diamond. The remaining materials — Rainbow Dragon Fish and Frost Queen Fish — are summoned with crafted bait instead of waited for, so save those for when the weather is wrong.

Getting between islands

Travel is by boat: talk to the Spawn Boat NPC. Once you arrive, set your respawn with the Set Spawn NPC so a disconnect does not send you back to Beginning Isle. Both appear on the NPC list.

Island data transcribed: