Tide & TempNOAA tides and water temperature

Massachusetts tide station

Brant Rock, Green Harbor River tide times

Today, Sunday, October 18, 2026: high tide at 5:27 AM (7.5 ft) and 5:40 PM (8.4 ft); low tide at 11:23 AM (2.4 ft). Water temperature 57.4 F at buoy 44013 (18 mi away).

NOAA station 8446009 · Reference station · MLLW datum · times in EDT · sunrise 6:59 AM, sunset 5:56 PM · first quarter (51% lit)

High tide▲
5:27AM
7.5FT MLLW
high
Low tide▼
11:23AM
2.4FT MLLW
low
High tide▲
5:40PM
8.4FT MLLW
high
Water temp°F
57.4
14.1C
buoy 44013, 18 mi
12345678912 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM12 AM5:27 AM7.5 ft11:23 AM2.4 ft5:40 PM8.4 ftnow 5:20 AM
predicted height above MLLWnightnow (build time; your browser updates it)

As of 5:20 AM the tide is rising toward high tide at 5:27 AM (7.5 ft).

First Quarter 51% litSunrise 6:59 AMSunset 5:56 PMDaylight 10h 57mEDT

Next 7 days at Brant Rock, Green Harbor River

DateTide 1Tide 2Tide 3Tide 4SunriseSunsetMoon
Sun Oct 18today5:27 AM7.5 ft11:23 AM2.4 ft5:40 PM8.4 ft 6:59 AM5:56 PM 51%
Mon Oct 1912:06 AM1.6 ft6:25 AM7.5 ft12:21 PM2.4 ft6:39 PM8.3 ft7:00 AM5:55 PM 61%
Tue Oct 201:02 AM1.6 ft7:23 AM7.6 ft1:20 PM2.2 ft7:38 PM8.4 ft7:01 AM5:53 PM 71%
Wed Oct 211:56 AM1.5 ft8:16 AM8.0 ft2:16 PM1.9 ft8:32 PM8.6 ft7:02 AM5:52 PM 80%
Thu Oct 222:46 AM1.3 ft9:03 AM8.4 ft3:07 PM1.4 ft9:22 PM8.8 ft7:04 AM5:50 PM 88%
Fri Oct 233:31 AM1.1 ft9:46 AM8.9 ft3:54 PM0.9 ft10:09 PM9.0 ft7:05 AM5:49 PM 94%
Sat Oct 244:14 AM0.8 ft10:27 AM9.5 ft4:40 PM0.3 ft10:53 PM9.2 ft7:06 AM5:47 PM 98%

Water temperature near Brant Rock, Green Harbor River

405060708090
57.4 F (14.1 C)
NDBC buoy 44013 (BOSTON 16 NM East of Boston, MA), 18 mi away, observed 08:50 UTC October 18, 2026

Water temperature is the nearest NOAA reading to Brant Rock, Green Harbor River, not a measurement at the tide gauge itself (this station has no water-temperature sensor). See water temperature by state for every sensor and buoy.

Tide tables

High (▲) and low (▼) tides in EDT with sunrise, sunset and moon illumination. CSV of today's tides for every Massachusetts station.

October 2026 tide table

DateTide 1Tide 2Tide 3Tide 4SunriseSunsetMoon
Thu Oct 1    6:40 AM6:25 PM 72%
Fri Oct 2    6:41 AM6:23 PM 62%
Sat Oct 3    6:42 AM6:21 PM 52%
Sun Oct 4    6:43 AM6:19 PM 41%
Mon Oct 5    6:44 AM6:18 PM 31%
Tue Oct 6    6:45 AM6:16 PM 22%
Wed Oct 7    6:46 AM6:14 PM 14%
Thu Oct 8    6:48 AM6:13 PM 7%
Fri Oct 9    6:49 AM6:11 PM 3%
Sat Oct 10    6:50 AM6:09 PM 0%
Sun Oct 11    6:51 AM6:08 PM 0%
Mon Oct 12    6:52 AM6:06 PM 2%
Tue Oct 13    6:53 AM6:04 PM 7%
Wed Oct 14    6:54 AM6:03 PM 13%
Thu Oct 15    6:55 AM6:01 PM 21%
Fri Oct 163:44 AM8.0 ft9:39 AM2.0 ft3:53 PM8.9 ft10:18 PM1.1 ft6:57 AM6:00 PM 30%
Sat Oct 174:33 AM7.7 ft10:28 AM2.2 ft4:44 PM8.6 ft11:10 PM1.4 ft6:58 AM5:58 PM 40%
Sun Oct 18today5:27 AM7.5 ft11:23 AM2.4 ft5:40 PM8.4 ft 6:59 AM5:56 PM 51%
Mon Oct 1912:06 AM1.6 ft6:25 AM7.5 ft12:21 PM2.4 ft6:39 PM8.3 ft7:00 AM5:55 PM 61%
Tue Oct 201:02 AM1.6 ft7:23 AM7.6 ft1:20 PM2.2 ft7:38 PM8.4 ft7:01 AM5:53 PM 71%
Wed Oct 211:56 AM1.5 ft8:16 AM8.0 ft2:16 PM1.9 ft8:32 PM8.6 ft7:02 AM5:52 PM 80%
Thu Oct 222:46 AM1.3 ft9:03 AM8.4 ft3:07 PM1.4 ft9:22 PM8.8 ft7:04 AM5:50 PM 88%
Fri Oct 233:31 AM1.1 ft9:46 AM8.9 ft3:54 PM0.9 ft10:09 PM9.0 ft7:05 AM5:49 PM 94%
Sat Oct 244:14 AM0.8 ft10:27 AM9.5 ft4:40 PM0.3 ft10:53 PM9.2 ft7:06 AM5:47 PM 98%
Sun Oct 254:55 AM0.6 ft11:08 AM10.0 ft5:24 PM-0.2 ft11:37 PM9.4 ft7:07 AM5:46 PM 100%
Mon Oct 265:37 AM0.5 ft11:49 AM10.5 ft6:09 PM-0.7 ft 7:08 AM5:45 PM 99%
Tue Oct 2712:21 AM9.5 ft6:20 AM0.3 ft12:32 PM10.8 ft6:55 PM-1.0 ft7:10 AM5:43 PM 97%
Wed Oct 281:07 AM9.5 ft7:05 AM0.3 ft1:17 PM11.0 ft7:43 PM-1.1 ft7:11 AM5:42 PM 92%
Thu Oct 291:55 AM9.5 ft7:53 AM0.3 ft2:07 PM11.1 ft8:35 PM-1.0 ft7:12 AM5:40 PM 85%
Fri Oct 302:48 AM9.3 ft8:45 AM0.4 ft3:01 PM10.9 ft9:30 PM-0.7 ft7:13 AM5:39 PM 77%
Sat Oct 313:44 AM9.1 ft9:43 AM0.6 ft4:00 PM10.6 ft10:29 PM-0.4 ft7:14 AM5:38 PM 68%

November 2026 tide table

DateTide 1Tide 2Tide 3Tide 4SunriseSunsetMoon
Sun Nov 13:45 AM8.9 ft9:45 AM0.8 ft4:04 PM10.2 ft10:30 PM-0.1 ft6:16 AM4:37 PM 57%
Mon Nov 24:50 AM8.9 ft10:51 AM0.9 ft5:11 PM9.9 ft11:34 PM0.1 ft6:17 AM4:35 PM 46%
Tue Nov 35:57 AM9.1 ft11:59 AM0.8 ft6:20 PM9.6 ft 6:18 AM4:34 PM 36%
Wed Nov 412:37 AM0.2 ft7:01 AM9.4 ft1:06 PM0.6 ft7:26 PM9.5 ft6:19 AM4:33 PM 26%
Thu Nov 51:36 AM0.3 ft7:59 AM9.7 ft2:08 PM0.3 ft8:26 PM9.5 ft6:21 AM4:32 PM 17%
Fri Nov 62:30 AM0.4 ft8:51 AM10.0 ft3:03 PM0.1 ft9:21 PM9.4 ft6:22 AM4:30 PM 10%
Sat Nov 73:19 AM0.5 ft9:39 AM10.1 ft3:53 PM-0.1 ft10:10 PM9.2 ft6:23 AM4:29 PM 5%
Sun Nov 84:04 AM0.7 ft10:22 AM10.1 ft4:38 PM-0.1 ft10:55 PM9.0 ft6:24 AM4:28 PM 1%
Mon Nov 94:45 AM0.9 ft11:01 AM10.0 ft5:19 PM-0.0 ft11:35 PM8.8 ft6:26 AM4:27 PM 0%
Tue Nov 105:24 AM1.2 ft11:39 AM9.8 ft5:58 PM0.1 ft 6:27 AM4:26 PM 1%
Wed Nov 1112:14 AM8.5 ft6:03 AM1.4 ft12:16 PM9.6 ft6:37 PM0.3 ft6:28 AM4:25 PM 4%
Thu Nov 1212:52 AM8.3 ft6:42 AM1.6 ft12:55 PM9.4 ft7:18 PM0.6 ft6:29 AM4:24 PM 10%
Fri Nov 131:32 AM8.0 ft7:23 AM1.8 ft1:36 PM9.1 ft8:01 PM0.8 ft6:31 AM4:23 PM 17%
Sat Nov 142:15 AM7.8 ft8:08 AM2.0 ft2:20 PM8.9 ft8:46 PM1.0 ft6:32 AM4:22 PM 25%
Sun Nov 153:01 AM7.7 ft8:56 AM2.1 ft3:09 PM8.7 ft9:35 PM1.2 ft6:33 AM4:21 PM 35%
Mon Nov 163:51 AM7.7 ft9:48 AM2.2 ft4:01 PM8.5 ft10:25 PM1.3 ft6:34 AM4:20 PM 45%
Tue Nov 174:43 AM7.7 ft10:43 AM2.2 ft4:56 PM8.3 ft11:17 PM1.4 ft6:35 AM4:20 PM 56%
Wed Nov 185:36 AM7.9 ft11:40 AM2.0 ft5:53 PM8.3 ft 6:37 AM4:19 PM 66%
Thu Nov 1912:09 AM1.4 ft6:28 AM8.3 ft12:36 PM1.6 ft6:49 PM8.3 ft6:38 AM4:18 PM 76%
Fri Nov 2012:59 AM1.3 ft7:17 AM8.7 ft1:30 PM1.1 ft7:42 PM8.4 ft6:39 AM4:17 PM 84%
Sat Nov 211:47 AM1.1 ft8:03 AM9.2 ft2:20 PM0.6 ft8:33 PM8.6 ft6:40 AM4:17 PM 91%
Sun Nov 222:33 AM0.9 ft8:49 AM9.8 ft3:10 PM-0.0 ft9:22 PM8.9 ft6:41 AM4:16 PM 96%
Mon Nov 233:20 AM0.7 ft9:34 AM10.4 ft3:58 PM-0.6 ft10:11 PM9.1 ft6:43 AM4:15 PM 99%
Tue Nov 244:07 AM0.5 ft10:21 AM10.8 ft4:47 PM-1.0 ft10:59 PM9.3 ft6:44 AM4:15 PM 100%
Wed Nov 254:54 AM0.3 ft11:09 AM11.2 ft5:36 PM-1.3 ft11:49 PM9.4 ft6:45 AM4:14 PM 98%
Thu Nov 265:44 AM0.1 ft11:59 AM11.4 ft6:27 PM-1.4 ft 6:46 AM4:14 PM 95%
Fri Nov 2712:40 AM9.4 ft6:35 AM0.1 ft12:52 PM11.3 ft7:20 PM-1.3 ft6:47 AM4:13 PM 89%
Sat Nov 281:33 AM9.4 ft7:30 AM0.1 ft1:48 PM11.1 ft8:14 PM-1.1 ft6:48 AM4:13 PM 81%
Sun Nov 292:30 AM9.4 ft8:29 AM0.2 ft2:46 PM10.7 ft9:11 PM-0.8 ft6:49 AM4:12 PM 73%
Mon Nov 303:29 AM9.4 ft9:30 AM0.4 ft3:48 PM10.2 ft10:09 PM-0.4 ft6:50 AM4:12 PM 63%

Tidal datums at Brant Rock, Green Harbor River

Heights on this page are above mean lower low water (MLLW), the chart datum. NOAA's accepted datums for station 8446009, in feet above MLLW:

MHHW

11.23 ft
Mean higher high water

MHW

10.79 ft
Mean high water

MSL

6.31 ft
Mean sea level

MLW

1.71 ft
Mean low water

MN

9.08 ft
Mean range

GT

9.87 ft
Diurnal range

Nearby tide stations

Questions

What time is high tide at Brant Rock, Green Harbor River today?

High tide at Brant Rock, Green Harbor River, Massachusetts on Sunday, October 18, 2026 is at 5:27 AM (7.5 ft above MLLW) and 5:40 PM (8.4 ft above MLLW), NOAA prediction, local time.

What time is low tide at Brant Rock, Green Harbor River today?

Low tide at Brant Rock, Green Harbor River on Sunday, October 18, 2026 is at 11:23 AM (2.4 ft).

What is the water temperature at Brant Rock, Green Harbor River?

The nearest NOAA water-temperature reading to Brant Rock, Green Harbor River is 57.4 F at buoy 44013 (18 mi away), as of October 18, 2026.

Not for navigation. Predictions do not include weather; wind and pressure can move the real water level by a foot or more. Source: NOAA CO-OPS station 8446009.