Mississippi Sound clears after Isaias as snapper season closes
Water temperatures across Mississippi Sound held in the mid-70s this morning, 74.1°F at CO-OPS station 8747437 and 76.8°F at station 8741533, as the Sound dries out after Hurricane Isaias forced MDMR's Biloxi licensing office to shut down Oct. 9 (it reopens Monday, Oct. 12, per MS DMR). The bigger story for anyone planning a trip is regulatory, not biological: per MS DMR, Mississippi's state recreational red snapper season closed for the year at 11:59 p.m. on Sept. 27, and no red snapper may be landed or possessed in state waters for the rest of 2026.
New to these readings? What water temp, tide, and moon phase mean for fishing →
What's next
Tides stay tight through the next few days with lows arriving early: roughly 6:19 a.m. CDT at station 8741533 and 8:15 a.m. at station 8747437 today, and neither station has a predicted high logged yet, so plan around the falling water through midmorning. Anyone planning the next couple of days should treat that early low as the start of the workable window, since moving water around a new moon tends to concentrate bait and predators along the same current lines for longer stretches than during a neutral tide phase, especially once the sun is up and visibility improves.
Tonight's new moon pushes the tidal range toward the stronger end of its cycle, which typically sharpens activity around the turn as current lines firm up over structure and passes. The roughly three-degree spread between the two stations, warmer at 8741533, suggests any temperature-driven movement in the next couple of days will lean toward that side of the Sound before conditions even out. Worth building a weekend trip around those early lows while the new-moon push is still working. MDMR's Biloxi office reopening Monday also matters if a license or permit renewal is on the to-do list before heading out.
Context
Mid-October has Mississippi Sound in its usual fall transition: water still holding summer-range warmth in the mid-70s while nights cool and baitfish begin shifting toward the back bays, marshes and passes, a pattern typical for the Gulf Coast at this point in the calendar. The season now carries an added wrinkle: the state recreational red snapper fishery is closed for the remainder of 2026, per MS DMR, after landings were tallied through the Tails n' Scales reporting program, which shifts more attention toward inshore and nearshore targets through year's end.
The Gulf hurricane season typically runs into November, and this week's disruption from Isaias is a reminder to double-check local marine conditions before launching, especially along exposed stretches of the Sound. MDMR's brief licensing-office closure and Monday reopening is a normal part of how Gulf Coast agencies handle storm disruptions this time of year, and it's a useful prompt to confirm license status now rather than waiting until a trip is already planned.
Synthesized from real-time NOAA buoy data, USGS stream gauges, and current reports across regional fishing blogs, captain updates, and angler forums. Check local regulations before keeping fish. Never trust a single source for a trip decision.
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