Tides Today & Tomorrow in Deer Island, MA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Deer Island, MA.
Next low tide : 10:34 pm (0.8 ft)
Next high tide : in 4h 17m at 4:16 pm (9.6 ft)
Sunset today : 7:40 pm
Sunrise tomorrow : 5:54 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8444012
Common Questions About Tides

Deer Island, MA Tides - May 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:4510.91:249.57:12-0.97:220.35:397:42Waning Gibbous1Tue
2Wed1:3210.92:149.48:00-0.88:110.45:387:43Waning Gibbous2Wed
3Thu2:2210.83:069.28:52-0.79:040.65:367:44Waning Gibbous3Thu
4Fri3:1610.64:039.19:46-0.410:020.85:357:45Third Quarter4Fri
5Sat4:1510.35:049.010:45-0.111:041.05:347:46Third Quarter5Sat
6Sun5:199.96:079.111:460.25:327:47Third Quarter6Sun
7Mon6:259.67:109.312:091.012:470.35:317:49Third Quarter7Mon
8Tue7:329.58:119.61:150.91:460.45:307:50Waning Crescent8Tue
9Wed8:379.49:079.92:190.62:440.55:297:51Waning Crescent9Wed
10Thu9:379.49:5810.23:200.33:380.55:287:52Waning Crescent10Thu
11Fri10:319.410:4510.44:15-0.14:280.55:267:53New Moon11Fri
12Sat11:199.411:2810.45:04-0.35:130.75:257:54New Moon12Sat
13Sun12:059.35:49-0.45:560.85:247:55New Moon13Sun
14Mon12:0910.312:499.16:33-0.36:391.05:237:56New Moon14Mon
15Tue12:5110.21:318.97:15-0.17:211.25:227:57Waxing Crescent15Tue
16Wed1:3210.02:138.77:570.28:031.55:217:58Waxing Crescent16Wed
17Thu2:149.72:568.58:400.58:461.75:207:59Waxing Crescent17Thu
18Fri2:589.53:408.39:230.89:321.95:198:00Waxing Crescent18Fri
19Sat3:449.24:278.210:091.010:212.15:188:01First Quarter19Sat
20Sun4:328.95:168.210:571.311:132.15:178:02First Quarter20Sun
21Mon5:248.76:058.311:451.45:168:03First Quarter21Mon
22Tue6:178.56:538.512:062.112:341.55:168:04First Quarter22Tue
23Wed7:108.57:408.912:591.91:221.55:158:05Waxing Gibbous23Wed
24Thu8:038.58:279.31:521.52:111.45:148:06Waxing Gibbous24Thu
25Fri8:568.79:149.72:451.12:591.25:138:07Waxing Gibbous25Fri
26Sat9:478.99:5910.23:360.53:481.05:138:08Waxing Gibbous26Sat
27Sun10:369.110:4510.74:260.04:350.75:128:09Full Moon27Sun
28Mon11:259.311:3211.15:14-0.55:230.55:118:10Full Moon28Mon
29Tue12:159.46:03-0.86:120.35:118:10Full Moon29Tue
30Wed12:2211.31:079.56:53-1.07:030.35:108:11Waning Gibbous30Wed
31Thu1:1411.32:009.67:45-1.17:560.35:108:12Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8444012)

Common Questions About Deer Island, MA Tides

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

Slack tide in Deer Island, MA is approximately 7:25 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 Deer Island, MA?

Deer Island, MA is currently in a transitional phase. Tonight's moon is 36% 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 shifting between spring and neap.

What datum are Deer Island, 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 Deer Island, MA?

Tide predictions for Deer Island, 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 Deer Island, MA?

Tide data for Deer Island, MA is sourced from NOAA Station #8444012. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8444012.

What is the moon phase in Deer Island, MA tonight?

Tonight the moon over Deer Island, MA is First Quarter (36% illuminated). This places Deer Island, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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