Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide (tomorrow) : 2:40 am (0.6 ft)
Next high tide : in 4h 27m at 7:49 pm (7.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - Jul 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:325.911:507.35:580.76:041.25:098:26Waning Crescent1Wed
2Thu12:185.96:450.66:501.15:108:26New Moon2Thu
3Fri12:357.51:036.17:310.57:351.15:108:25New Moon3Fri
4Sat1:197.61:486.28:150.48:191.05:118:25New Moon4Sat
5Sun2:037.72:326.48:570.39:020.95:128:25Waxing Crescent5Sun
6Mon2:467.83:166.79:390.29:460.85:128:25Waxing Crescent6Mon
7Tue3:317.94:026.910:230.110:340.85:138:24Waxing Crescent7Tue
8Wed4:197.84:517.111:080.111:260.75:148:24Waxing Crescent8Wed
9Thu5:097.65:427.411:560.25:158:23First Quarter9Thu
10Fri6:027.46:347.612:210.612:450.25:158:23First Quarter10Fri
11Sat6:577.17:287.81:190.51:380.35:168:22First Quarter11Sat
12Sun7:556.88:257.92:180.32:340.45:178:22First Quarter12Sun
13Mon8:556.69:238.13:190.23:310.55:188:21Waxing Gibbous13Mon
14Tue9:566.510:218.24:180.04:280.45:198:21Waxing Gibbous14Tue
15Wed10:546.411:178.35:15-0.25:230.45:198:20Waxing Gibbous15Wed
16Thu11:506.56:09-0.36:170.35:208:19Full Moon16Thu
17Fri12:128.312:446.67:03-0.47:110.25:218:18Full Moon17Fri
18Sat1:048.31:366.77:53-0.48:020.25:228:18Full Moon18Sat
19Sun1:548.22:246.88:41-0.48:520.25:238:17Waning Gibbous19Sun
20Mon2:418.03:106.99:27-0.29:410.35:248:16Waning Gibbous20Mon
21Tue3:277.83:557.010:12-0.110:300.45:258:15Waning Gibbous21Tue
22Wed4:137.44:417.010:580.111:200.65:268:14Waning Gibbous22Wed
23Thu5:007.15:297.011:450.45:278:13Third Quarter23Thu
24Fri5:496.76:177.012:120.712:330.65:288:12Third Quarter24Fri
25Sat6:386.47:057.01:040.81:210.95:298:12Third Quarter25Sat
26Sun7:296.17:566.91:570.92:121.15:308:11Third Quarter26Sun
27Mon8:225.98:496.92:521.03:051.25:318:09Waning Crescent27Mon
28Tue9:175.89:427.03:471.03:571.25:328:08Waning Crescent28Tue
29Wed10:115.710:347.14:390.94:481.25:338:07Waning Crescent29Wed
30Thu11:025.811:227.35:290.85:361.15:348:06Waning Crescent30Thu
31Fri11:506.06:170.66:231.05:358:05New Moon31Fri
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 11:14 pm — 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 neap phase. Tonight's moon is 41% 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 minimum.

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 Third Quarter (41% illuminated). This places Merrimacport, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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