18 (金)	07:05	00:50	19:17	13:14
	169cm	28cm	158cm	39cm
中潮 出 06:25 入 17:28 出 21:05 入 08:07 潮干狩り ○ 12:31～13:57

第一海堡（千葉）2033年02月18日の10分毎の潮の高低差を確認できます。
また1日の潮の高低差が1番大きい（潮の流れが大きい）時間に「最大潮位差」と明記してます。

時刻	潮位	高低差	各ポイント
2/18 00:00	32.9	↓-2.6
2/18 00:10	30.8	↓-2.1
2/18 00:20	29.1	↓-1.7
2/18 00:30	28.0	↓-1.1
2/18 00:40	27.3	↓-0.7	干潮
2/18 00:50	27.1	↓-0.2	干潮
2/18 01:00	27.4	↑0.3
2/18 01:10	28.2	↑0.8
2/18 01:20	29.5	↑1.3
2/18 01:30	31.3	↑1.8
2/18 01:40	33.5	↑2.2
2/18 01:50	36.2	↑2.7
2/18 02:00	39.3	↑3.1
2/18 02:10	42.9	↑3.6
2/18 02:20	46.8	↑3.9
2/18 02:30	51.1	↑4.3
2/18 02:40	55.7	↑4.6
2/18 02:50	60.6	↑4.9
2/18 03:00	65.8	↑5.2
2/18 03:10	71.1	↑5.3
2/18 03:20	76.7	↑5.6
2/18 03:30	82.4	↑5.7
2/18 03:40	88.3	↑5.9	最大潮位差
2/18 03:50	94.2	↑5.9	最大潮位差
2/18 04:00	100.1	↑5.9	最大潮位差
2/18 04:10	106.0	↑5.9	最大潮位差
2/18 04:20	111.8	↑5.8
2/18 04:30	117.5	↑5.7
2/18 04:40	123.1	↑5.6
2/18 04:50	128.6	↑5.5
2/18 05:00	133.8	↑5.2
2/18 05:10	138.7	↑4.9
2/18 05:20	143.4	↑4.7
2/18 05:30	147.7	↑4.3
2/18 05:40	151.7	↑4.0
2/18 05:50	155.3	↑3.6
2/18 06:00	158.5	↑3.2
2/18 06:10	161.3	↑2.8
2/18 06:20	163.6	↑2.3
2/18 06:30	165.5	↑1.9
2/18 06:40	166.9	↑1.4
2/18 06:50	167.9	↑1.0
2/18 07:00	168.3	↑0.4	満潮
2/18 07:10	168.3	0
2/18 07:20	167.8	↓-0.5
2/18 07:30	166.8	↓-1.0
2/18 07:40	165.3	↓-1.5
2/18 07:50	163.4	↓-1.9
2/18 08:00	161.1	↓-2.3
2/18 08:10	158.3	↓-2.8
2/18 08:20	155.1	↓-3.2
2/18 08:30	151.5	↓-3.6
2/18 08:40	147.6	↓-3.9
2/18 08:50	143.4	↓-4.2
2/18 09:00	138.8	↓-4.6
2/18 09:10	134.1	↓-4.7
2/18 09:20	129.1	↓-5.0
2/18 09:30	123.9	↓-5.2
2/18 09:40	118.5	↓-5.4
2/18 09:50	113.1	↓-5.4
2/18 10:00	107.6	↓-5.5
2/18 10:10	102.0	↓-5.6
2/18 10:20	96.5	↓-5.5
2/18 10:30	91.0	↓-5.5
2/18 10:40	85.6	↓-5.4
2/18 10:50	80.4	↓-5.2
2/18 11:00	75.3	↓-5.1
2/18 11:10	70.4	↓-4.9
2/18 11:20	65.8	↓-4.6
2/18 11:30	61.4	↓-4.4
2/18 11:40	57.3	↓-4.1
2/18 11:50	53.6	↓-3.7
2/18 12:00	50.2	↓-3.4
2/18 12:10	47.2	↓-3.0
2/18 12:20	44.6	↓-2.6
2/18 12:30	42.5	↓-2.1
2/18 12:40	40.7	↓-1.8
2/18 12:50	39.4	↓-1.3
2/18 13:00	38.6	↓-0.8
2/18 13:10	38.2	↓-0.4	干潮
2/18 13:20	38.3	↑0.1
2/18 13:30	38.8	↑0.5
2/18 13:40	39.8	↑1.0
2/18 13:50	41.2	↑1.4
2/18 14:00	43.0	↑1.8
2/18 14:10	45.3	↑2.3
2/18 14:20	48.0	↑2.7
2/18 14:30	51.0	↑3.0
2/18 14:40	54.4	↑3.4
2/18 14:50	58.1	↑3.7
2/18 15:00	62.1	↑4.0
2/18 15:10	66.4	↑4.3
2/18 15:20	70.9	↑4.5
2/18 15:30	75.7	↑4.8
2/18 15:40	80.5	↑4.8
2/18 15:50	85.5	↑5.0
2/18 16:00	90.6	↑5.1
2/18 16:10	95.8	↑5.2
2/18 16:20	101.0	↑5.2
2/18 16:30	106.1	↑5.1
2/18 16:40	111.2	↑5.1
2/18 16:50	116.1	↑4.9
2/18 17:00	121.0	↑4.9
2/18 17:10	125.6	↑4.6
2/18 17:20	130.1	↑4.5
2/18 17:30	134.3	↑4.2
2/18 17:40	138.2	↑3.9
2/18 17:50	141.9	↑3.7
2/18 18:00	145.2	↑3.3
2/18 18:10	148.1	↑2.9
2/18 18:20	150.7	↑2.6
2/18 18:30	152.9	↑2.2
2/18 18:40	154.7	↑1.8
2/18 18:50	156.0	↑1.3
2/18 19:00	157.0	↑1.0
2/18 19:10	157.5	↑0.5	満潮
2/18 19:20	157.5	0
2/18 19:30	157.1	↓-0.4
2/18 19:40	156.3	↓-0.8
2/18 19:50	155.1	↓-1.2
2/18 20:00	153.4	↓-1.7
2/18 20:10	151.3	↓-2.1
2/18 20:20	148.8	↓-2.5
2/18 20:30	146.0	↓-2.8
2/18 20:40	142.8	↓-3.2
2/18 20:50	139.3	↓-3.5
2/18 21:00	135.4	↓-3.9
2/18 21:10	131.3	↓-4.1
2/18 21:20	127.0	↓-4.3
2/18 21:30	122.4	↓-4.6
2/18 21:40	117.7	↓-4.7
2/18 21:50	112.8	↓-4.9
2/18 22:00	107.9	↓-4.9
2/18 22:10	102.8	↓-5.1
2/18 22:20	97.8	↓-5.0
2/18 22:30	92.7	↓-5.1
2/18 22:40	87.7	↓-5.0
2/18 22:50	82.7	↓-5.0
2/18 23:00	77.9	↓-4.8
2/18 23:10	73.3	↓-4.6
2/18 23:20	68.8	↓-4.5
2/18 23:30	64.6	↓-4.2
2/18 23:40	60.6	↓-4.0
2/18 23:50	56.9	↓-3.7