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Map of Port Mansfield
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IntermediateBoat entry

Port Mansfield

Texas, United States
20 m depthBoat entryRash guard or 2mm shorty typical

Boat dive — see Entry & access.

Port Mansfield at a glance

Port Mansfield is a intermediate boat dive site in Texas, United States with depths of up to 19.8 m (65 ft). Typically most favorable Aug · from 3 years of archive data. Divers commonly see Red snapper and Juvenile sailfish. Recent reports put the water around 29°C (84°F). Check the latest conditions and entry details before you go.

Marine model · graded 2h ago
0.6 mwaves — under a meter expected

Tap a factor for its source and model point · Forecast 29°C · seasonal avg 28°C

Site hazards: Offshore boat-access site in open Gulf waters; depth of roughly 65 ft places it at recreational depth limits. The associated Liberty Ship Reef nearby is deeper (~90-105 ft), well into advanced/deep-diving range.

Read the full hazards ↓

Dive windows this week

Best: Sun
Sun7:00–21:00
Mon7:00–21:00
Tue7:00–21:00
Wed7:00–21:00
Thu7:00–21:00
Fri7:00–21:00
Sat7:00–21:00

Favorable windowModerate window— no window

First light 6:25 · Sunrise 6:50 · Sunset 20:19

Source: Open-Meteo marine · model point 5.7 km from site · graded 2h ago

Forecast only — always assess conditions on site.

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan31%18°C1.7 m
  2. Feb49%18°C1.5 m
  3. Mar46%20°C1.5 m
  4. Apr44%23°C1.6 m
  5. May55%26°C1.3 m
  6. Jun64%28°C1.3 m
  7. Jul91%28°C1.0 m
  8. Aug95%29°C0.8 m
  9. Sep90%30°C1.0 m
  10. Oct58%28°C1.4 m
  11. Nov50%25°C1.5 m
  12. Dec69%21°C1.4 m

August hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

  • Red snapperCommonly seen
  • Juvenile sailfishOccasionally seen

Fills & rentals nearby

No dive shops mapped within 25 km. Know one? Add it to the map.

Site details

Port Mansfield is a Texas Parks & Wildlife artificial reef in the Gulf of Mexico off the South Texas coast, reached by boat from the Port Mansfield jetties. The nearshore reef site, lying in roughly 65-70 feet of water about seven nautical miles offshore, has been built up with thousands of concrete culverts and a sunken tugboat to create durable fish habitat. Deeper waters in the same general area also hold the separate Port Mansfield Liberty Ship Reef, made of three sunken WWII-era Liberty Ships and several oil-platform jackets. The reefs are designed to serve both recreational anglers and divers.

reef

Offshore boat-access site in open Gulf waters; depth of roughly 65 ft places it at recreational depth limits. The associated Liberty Ship Reef nearby is deeper (~90-105 ft), well into advanced/deep-diving range.

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