Maryland Tide Charts
Worldwide Tides

King tides at Assateague Island

The highest predicted waters at Assateague Island, through 2030. Every high tide reaching 7.00 ft above MLLW.

What counts as a king tide

There is no official definition. NOAA does not publish one, and the California King Tides Project simply means the highest predicted tides of the year. This page lists every predicted high water of 7.0 ft or more above MLLW, which on this stretch of coast picks out the handful of days each winter when the water comes up unusually far.

They happen when the moon is closest to Earth and new or full at the same time, with the Earth near its own closest approach to the sun. That alignment stacks the solar and lunar pulls together, and it lands in November, December and January far more often than not.

These are predictions of astronomical tide only. A winter storm arriving on a king tide is what causes flooding, because surge and wind can add a foot or more on top of the figures here.

King tides still to come

25–29 October 2026

Date High water Height
25 OctSun12:32 pm0.88 ft
26 OctMon12:14 am0.71 ft
26 OctMon1:16 pm0.91 ft
27 OctTue12:50 am0.70 ft
27 OctTue2:02 pm0.92 ft
28 OctWed1:27 am0.68 ft
28 OctWed2:55 pm0.92 ft
29 OctThu2:12 am0.66 ft
29 OctThu3:52 pm0.91 ft

18–22 September 2027

Date High water Height
18 SepSat1:48 am0.78 ft
18 SepSat2:39 pm0.87 ft
19 SepSun2:12 am0.77 ft
19 SepSun3:27 pm0.89 ft
20 SepMon2:48 am0.75 ft
20 SepMon4:18 pm0.90 ft
21 SepTue3:35 am0.74 ft
21 SepTue5:09 pm0.90 ft
22 SepWed4:25 am0.73 ft
22 SepWed6:12 pm0.89 ft

29 September – 3 October 2027

Date High water Height
29 SepWed12:26 pm0.92 ft
30 SepThu12:42 am0.87 ft
30 SepThu1:15 pm0.95 ft
1 OctFri1:22 am0.83 ft
1 OctFri2:02 pm0.96 ft
2 OctSat2:01 am0.80 ft
2 OctSat2:53 pm0.96 ft
3 OctSun2:43 am0.76 ft
3 OctSun3:45 pm0.95 ft

15–19 October 2027

Date High water Height
15 OctFri12:20 am0.75 ft
15 OctFri1:03 pm0.88 ft
16 OctSat12:46 am0.73 ft
16 OctSat1:40 pm0.90 ft
17 OctSun1:09 am0.72 ft
17 OctSun2:21 pm0.91 ft
18 OctMon1:38 am0.71 ft
18 OctMon3:10 pm0.91 ft
19 OctTue2:18 am0.70 ft
19 OctTue4:04 pm0.90 ft

18–22 September 2028

Date High water Height
18 SepMon12:13 am0.90 ft
18 SepMon12:37 pm0.92 ft
19 SepTue12:56 am0.89 ft
19 SepTue1:28 pm0.96 ft
20 SepWed1:38 am0.86 ft
20 SepWed2:20 pm0.98 ft
21 SepThu2:21 am0.83 ft
21 SepThu3:16 pm0.98 ft
22 SepFri3:11 am0.80 ft
22 SepFri4:13 pm0.97 ft

4–8 October 2028

Date High water Height
4 OctWed1:01 am0.77 ft
4 OctWed1:37 pm0.87 ft
5 OctThu1:24 am0.75 ft
5 OctThu2:12 pm0.88 ft
6 OctFri1:40 am0.74 ft
6 OctFri2:52 pm0.89 ft
7 OctSat2:05 am0.73 ft
7 OctSat3:39 pm0.89 ft
8 OctSun2:44 am0.71 ft
8 OctSun4:25 pm0.89 ft

17–21 October 2028

Date High water Height
17 OctTue12:25 pm0.95 ft
18 OctWed12:26 am0.79 ft
18 OctWed1:15 pm0.97 ft
19 OctThu1:09 am0.76 ft
19 OctThu2:04 pm0.98 ft
20 OctFri1:52 am0.73 ft
20 OctFri2:57 pm0.96 ft
21 OctSat2:40 am0.70 ft
21 OctSat3:51 pm0.93 ft

9–13 September 2029

Date High water Height
9 SepSun1:13 am0.86 ft
9 SepSun1:41 pm0.90 ft
10 SepMon1:51 am0.84 ft
10 SepMon2:34 pm0.93 ft
11 SepTue2:34 am0.82 ft
11 SepTue3:33 pm0.94 ft
12 SepWed3:25 am0.80 ft
12 SepWed4:30 pm0.94 ft
13 SepThu4:18 am0.77 ft
13 SepThu5:26 pm0.93 ft

7–11 October 2029

Date High water Height
7 OctSun12:39 pm0.96 ft
8 OctMon12:41 am0.83 ft
8 OctMon1:28 pm0.99 ft
9 OctTue1:22 am0.81 ft
9 OctTue2:19 pm1.00 ft
10 OctWed2:06 am0.79 ft
10 OctWed3:16 pm1.00 ft
11 OctThu3:00 am0.77 ft
11 OctThu4:13 pm0.98 ft

4–8 November 2029

Date High water Height
4 NovSun10:29 am0.84 ft
4 NovSun10:17 pm0.68 ft
5 NovMon11:25 am0.88 ft
5 NovMon11:12 pm0.66 ft
6 NovTue12:15 pm0.90 ft
6 NovTue11:59 pm0.64 ft
7 NovWed1:05 pm0.90 ft
8 NovThu12:46 am0.62 ft
8 NovThu1:59 pm0.88 ft

4–8 September 2030

Date High water Height
4 SepWed5:07 am0.73 ft
4 SepWed6:46 pm0.86 ft
5 SepThu6:14 am0.71 ft
5 SepThu7:59 pm0.88 ft
6 SepFri7:51 am0.71 ft
6 SepFri8:56 pm0.89 ft
7 SepSat8:53 am0.74 ft
7 SepSat9:48 pm0.89 ft
8 SepSun9:48 am0.76 ft
8 SepSun10:41 pm0.89 ft

28 September – 2 October 2030

Date High water Height
28 SepSat1:01 am0.83 ft
28 SepSat1:43 pm0.95 ft
29 SepSun1:35 am0.82 ft
29 SepSun2:33 pm0.96 ft
30 SepMon2:14 am0.81 ft
30 SepMon3:29 pm0.97 ft
1 OctTue3:06 am0.79 ft
1 OctTue4:26 pm0.96 ft
2 OctWed4:07 am0.77 ft
2 OctWed5:21 pm0.95 ft

25–29 October 2030

Date High water Height
25 OctFri11:54 am0.87 ft
25 OctFri11:43 pm0.73 ft
26 OctSat12:43 pm0.91 ft
27 OctSun12:28 am0.72 ft
27 OctSun1:29 pm0.93 ft
28 OctMon1:10 am0.71 ft
28 OctMon2:19 pm0.93 ft
29 OctTue1:54 am0.70 ft
29 OctTue3:14 pm0.92 ft

King tides already past

31 December – 2 January 2026

Date High water Height
31 DecWed8:54 pm0.23 ft
1 JanThu10:40 am0.49 ft
1 JanThu9:59 pm0.22 ft
2 JanFri11:36 am0.50 ft
2 JanFri11:09 pm0.22 ft

28 September – 2 October 2026

Date High water Height
28 SepMon1:24 am0.81 ft
28 SepMon2:16 pm0.94 ft
29 SepTue1:54 am0.79 ft
29 SepTue3:08 pm0.95 ft
30 SepWed2:34 am0.77 ft
30 SepWed4:05 pm0.96 ft
1 OctThu3:26 am0.75 ft
1 OctThu5:00 pm0.95 ft
2 OctFri4:23 am0.74 ft
2 OctFri6:00 pm0.93 ft

9–13 October 2026

Date High water Height
9 OctFri12:13 pm0.87 ft
10 OctSat12:23 am0.81 ft
10 OctSat12:58 pm0.90 ft
11 OctSun1:00 am0.78 ft
11 OctSun1:39 pm0.91 ft
12 OctMon1:33 am0.75 ft
12 OctMon2:21 pm0.91 ft
13 OctTue2:04 am0.72 ft
13 OctTue3:06 pm0.90 ft