Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 9:26 am (0.5 ft)
Next high tide : in 2h 28m at 2:31 am (7.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:09 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - May 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:167.012:416.47:010.57:140.95:387:43Full Moon1Tue
2Wed12:567.21:226.47:450.47:551.05:367:45Full Moon2Wed
3Thu1:367.42:036.48:270.48:351.15:357:46Full Moon3Thu
4Fri2:167.52:456.49:090.49:141.25:347:47Waning Gibbous4Fri
5Sat2:577.63:276.39:520.49:541.35:327:48Waning Gibbous5Sat
6Sun3:417.64:136.310:370.510:381.45:317:49Waning Gibbous6Sun
7Mon4:277.65:026.311:260.511:281.45:307:50Waning Gibbous7Mon
8Tue5:187.55:556.312:170.65:297:51Third Quarter8Tue
9Wed6:127.56:496.412:241.41:100.55:277:52Third Quarter9Wed
10Thu7:077.47:456.61:221.32:040.55:267:54Third Quarter10Thu
11Fri8:057.48:416.92:221.12:590.45:257:55Third Quarter11Fri
12Sat9:047.39:387.33:220.83:520.25:247:56Waning Crescent12Sat
13Sun10:037.310:327.84:200.44:430.15:237:57Waning Crescent13Sun
14Mon10:597.311:248.25:16-0.15:330.15:227:58Waning Crescent14Mon
15Tue11:537.26:10-0.46:230.15:217:59New Moon15Tue
16Wed12:158.512:477.27:03-0.67:140.15:208:00New Moon16Wed
17Thu1:058.71:397.07:55-0.78:040.25:198:01New Moon17Thu
18Fri1:568.72:296.98:46-0.78:540.35:188:02Waxing Crescent18Fri
19Sat2:458.63:196.79:37-0.69:440.55:178:03Waxing Crescent19Sat
20Sun3:358.44:106.610:29-0.310:370.75:168:04Waxing Crescent20Sun
21Mon4:278.05:026.411:210.011:320.95:158:05Waxing Crescent21Mon
22Tue5:207.75:566.312:140.25:148:06First Quarter22Tue
23Wed6:137.36:506.312:281.01:060.45:138:07First Quarter23Wed
24Thu7:076.97:436.31:241.11:580.65:138:08First Quarter24Thu
25Fri8:016.68:366.52:201.22:490.85:128:09First Quarter25Fri
26Sat8:566.49:276.63:161.13:400.95:118:10Waxing Gibbous26Sat
27Sun9:496.310:166.84:091.04:270.95:108:11Waxing Gibbous27Sun
28Mon10:396.211:007.05:000.95:131.05:108:12Waxing Gibbous28Mon
29Tue11:256.111:437.25:470.75:581.15:098:12Waxing Gibbous29Tue
30Wed12:106.16:340.66:421.25:098:13Full Moon30Wed
31Thu12:257.412:546.17:190.57:251.25:088:14Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440369)

Common Questions About Merrimacport, MA Tides

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What time does the tide turn (slack tide) in Merrimacport, MA today?

Slack tide in Merrimacport, MA is approximately 5:58 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Merrimacport, MA?

Merrimacport, MA is currently in a spring phase. Tonight's moon is 94% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Merrimacport, MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Merrimacport, MA?

Tide predictions for Merrimacport, MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Merrimacport, MA?

Tide data for Merrimacport, MA is sourced from NOAA Station #8440369. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8440369.

What is the moon phase in Merrimacport, MA tonight?

Tonight the moon over Merrimacport, MA is Waning Gibbous (94% illuminated). This places Merrimacport, MA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA