Whilom Catfish

Replaying the weather rotation for 365 real days from 1 January 2020 — 7,509 Eorzean days across 22,526 eight-bell weather periods — Whilom Catfish opens 4,881 times, about 13.4 windows per real day. Those windows average 31 minutes 59 seconds, which leaves it catchable 29.7% of the time.

The median wait from one window closing to the next opening is 46 minutes 40 seconds, and the mean 1 hour 16 minutes. The shortest gap in that simulation was 23 minutes 20 seconds; the worst drought ran 10 hours 30 minutes.

Ranked against every other fish in this dataset that carries a time or weather requirement, that is the 217th tightest of 348: 123 are catchable for more of the clock than Whilom Catfish, and 8 others land on exactly the same figure.

Those windows are not spread evenly across the conditions that allow them: Dust Storms carries 34.2% of them (1,670 of 4,881) and Clouds 33.1%, leaving 1 rarer combination to make up the rest.