Note: Merrimack River at Lawrence Ma has a very small astronomical tide — about 8 cm between high and low water. Day-to-day changes in water level here are driven mainly by wind, air pressure and seiche rather than the tide, so observed levels can differ noticeably from these predictions.
Today — Thu, Aug 20
- Low Tide8:46 AM0.05m (0.2ft) LAT
- High Tide7:08 PM0.11m (0.4ft) LAT
Fri, Aug 21
- Low Tide9:10 AM0.07m (0.2ft) LAT
- High Tide7:29 PM0.12m (0.4ft) LAT
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Station Details
- Location
- Merrimack River at Lawrence Ma, Massachusetts, United States
- Coordinates
- 42.7048°N, 71.1531°W
- Station ID
- merrimack_river_at_lawrence_ma-1100500-usa-usgs
- Type
- Reference (harmonic)
- Timezone
- America/New_York
- Datum
- MLLW (Mean Lower Low Water)
- Source
- TICON-4 (SHOM)
Tide Chart for Merrimack River at Lawrence Ma
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Set
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Moon
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Tidal Conditions
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Fishing & Tides at Merrimack River at Lawrence Ma — Thursday, August 20
Best fishing times today
- Minor10:20 PM – 11:20 PM
- Major5:44 AM – 7:44 AM☀ prime
- Minor2:16 PM – 3:16 PM
- Major6:06 PM – 8:06 PM☀ prime
Neap tides — a smaller tidal range than usual today
The moon is at a quarter phase, so today's high and low tides are closer together than usual.
7-Day Tide Table & Forecast for Merrimack River at Lawrence Ma
Legend — How to read this forecast
High Tide / Low Tide — Predicted peak and trough water levels with time and height.
Sunrise / Sunset — Local times for the station’s timezone.
Moon Phase — Current lunar phase and illumination percentage. New/Full moons correlate with stronger (spring) tides; Quarter moons with weaker (neap) tides.
Spring / Neap — Spring tides (near new/full moon) have larger tidal ranges. Neap tides (near quarter moons) have smaller ranges. Moderate is in between.
Fishing (Solunar) — ★★★★★ 1–5 star rating based on moon phase and lunar distance. Best fishing is typically around new and full moons when the moon is closest (perigee). Major feeding periods occur when the moon is overhead or underfoot.
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