Tides Today & Tomorrow in Newburyport (Merrimack River), MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Newburyport (Merrimack River), MA.
Next low tide : 9:52 pm (1.2 ft)
Next high tide : in 5h 28m at 3:33 pm (7.7 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - Dec 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:288.411:007.24:331.15:100.26:544:10Full Moon1Sun
2Mon11:088.511:397.25:151.15:510.26:554:10Full Moon2Mon
3Tue11:478.55:551.16:320.26:564:10Full Moon3Tue
4Wed12:187.212:268.66:351.27:120.26:574:09Waning Gibbous4Wed
5Thu12:597.31:078.67:161.27:530.26:584:09Waning Gibbous5Thu
6Fri1:417.31:518.57:571.28:340.26:594:09Waning Gibbous6Fri
7Sat2:257.42:368.48:411.29:180.37:004:09Waning Gibbous7Sat
8Sun3:127.63:258.39:301.110:040.47:014:09Third Quarter8Sun
9Mon4:017.84:178.110:241.010:530.47:024:09Third Quarter9Mon
10Tue4:528.05:127.911:220.911:460.57:034:09Third Quarter10Tue
11Wed5:458.36:107.812:220.67:034:09Third Quarter11Wed
12Thu6:398.77:107.712:400.51:210.27:044:09Waning Crescent12Thu
13Fri7:359.08:107.71:350.42:19-0.27:054:09Waning Crescent13Fri
14Sat8:319.49:087.82:290.33:16-0.67:064:09Waning Crescent14Sat
15Sun9:269.810:048.03:240.24:11-1.07:074:10New Moon15Sun
16Mon10:2010.010:578.14:180.05:04-1.27:074:10New Moon16Mon
17Tue11:1310.111:498.35:11-0.25:56-1.37:084:10New Moon17Tue
18Wed12:0510.16:04-0.36:47-1.37:094:11Waxing Crescent18Wed
19Thu12:418.312:569.96:57-0.37:37-1.27:094:11Waxing Crescent19Thu
20Fri1:328.31:489.57:50-0.28:27-0.97:104:11Waxing Crescent20Fri
21Sat2:238.32:409.08:430.09:17-0.67:104:12Waxing Crescent21Sat
22Sun3:148.33:328.59:380.210:07-0.27:114:12First Quarter22Sun
23Mon4:068.24:268.010:340.410:590.27:114:13First Quarter23Mon
24Tue4:588.15:217.511:310.611:520.57:124:13First Quarter24Tue
25Wed5:508.06:177.112:290.67:124:14First Quarter25Wed
26Thu6:437.97:136.912:450.81:250.67:124:15Waxing Gibbous26Thu
27Fri7:367.98:096.71:371.02:190.67:134:15Waxing Gibbous27Fri
28Sat8:278.09:016.72:281.13:100.57:134:16Waxing Gibbous28Sat
29Sun9:158.19:496.83:171.23:590.47:134:17Waxing Gibbous29Sun
30Mon10:008.210:336.94:041.24:440.37:134:18Full Moon30Mon
31Tue10:438.311:137.14:481.15:280.27:134:19Full Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440466)

Common Questions About Newburyport (Merrimack River), MA Tides

Show All
What time does the tide turn (slack tide) in Newburyport (Merrimack River), MA today?

Slack tide in Newburyport (Merrimack River), MA is approximately 6:42 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 Newburyport (Merrimack River), MA?

Newburyport (Merrimack River), MA is currently in a spring phase. Tonight's moon is 81% 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 Newburyport (Merrimack River), 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 Newburyport (Merrimack River), MA?

Tide predictions for Newburyport (Merrimack River), 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 Newburyport (Merrimack River), MA?

Tide data for Newburyport (Merrimack River), MA is sourced from NOAA Station #8440466. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8440466.

What is the moon phase in Newburyport (Merrimack River), MA tonight?

Tonight the moon over Newburyport (Merrimack River), MA is Waning Gibbous (81% illuminated). This places Newburyport (Merrimack River), 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