18 (火)	07:48	01:38	20:26	14:15
	163cm	48cm	140cm	38cm
中潮 出 06:25 入 17:28 出 22:51 入 08:54 潮干狩り ○ 13:26～15:03

第一海堡（千葉）2025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	65.6	↓-3.6
2/18 00:10	62.3	↓-3.3
2/18 00:20	59.2	↓-3.1
2/18 00:30	56.5	↓-2.7
2/18 00:40	54.2	↓-2.3
2/18 00:50	52.1	↓-2.1
2/18 01:00	50.5	↓-1.6
2/18 01:10	49.2	↓-1.3
2/18 01:20	48.3	↓-0.9
2/18 01:30	47.9	↓-0.4	干潮
2/18 01:40	47.8	↓-0.1
2/18 01:50	48.1	↑0.3
2/18 02:00	48.9	↑0.8
2/18 02:10	50.0	↑1.1
2/18 02:20	51.5	↑1.5
2/18 02:30	53.4	↑1.9
2/18 02:40	55.7	↑2.3
2/18 02:50	58.3	↑2.6
2/18 03:00	61.3	↑3.0
2/18 03:10	64.6	↑3.3
2/18 03:20	68.2	↑3.6
2/18 03:30	72.0	↑3.8
2/18 03:40	76.1	↑4.1
2/18 03:50	80.3	↑4.2
2/18 04:00	84.8	↑4.5
2/18 04:10	89.4	↑4.6
2/18 04:20	94.1	↑4.7
2/18 04:30	98.9	↑4.8
2/18 04:40	103.7	↑4.8
2/18 04:50	108.6	↑4.9
2/18 05:00	113.4	↑4.8
2/18 05:10	118.1	↑4.7
2/18 05:20	122.8	↑4.7
2/18 05:30	127.4	↑4.6
2/18 05:40	131.7	↑4.3
2/18 05:50	135.9	↑4.2
2/18 06:00	139.9	↑4.0
2/18 06:10	143.6	↑3.7
2/18 06:20	147.0	↑3.4
2/18 06:30	150.2	↑3.2
2/18 06:40	153.0	↑2.8
2/18 06:50	155.4	↑2.4
2/18 07:00	157.5	↑2.1
2/18 07:10	159.2	↑1.7
2/18 07:20	160.5	↑1.3
2/18 07:30	161.5	↑1.0
2/18 07:40	162.0	↑0.5	満潮
2/18 07:50	162.1	↑0.1
2/18 08:00	161.7	↓-0.4
2/18 08:10	161.0	↓-0.7
2/18 08:20	159.9	↓-1.1
2/18 08:30	158.3	↓-1.6
2/18 08:40	156.4	↓-1.9
2/18 08:50	154.1	↓-2.3
2/18 09:00	151.4	↓-2.7
2/18 09:10	148.4	↓-3.0
2/18 09:20	145.0	↓-3.4
2/18 09:30	141.4	↓-3.6
2/18 09:40	137.5	↓-3.9
2/18 09:50	133.3	↓-4.2
2/18 10:00	128.9	↓-4.4
2/18 10:10	124.3	↓-4.6
2/18 10:20	119.5	↓-4.8
2/18 10:30	114.7	↓-4.8
2/18 10:40	109.7	↓-5.0
2/18 10:50	104.7	↓-5.0
2/18 11:00	99.6	↓-5.1	最大潮位差
2/18 11:10	94.5	↓-5.1	最大潮位差
2/18 11:20	89.5	↓-5.0
2/18 11:30	84.6	↓-4.9
2/18 11:40	79.7	↓-4.9
2/18 11:50	75.0	↓-4.7
2/18 12:00	70.5	↓-4.5
2/18 12:10	66.2	↓-4.3
2/18 12:20	62.1	↓-4.1
2/18 12:30	58.2	↓-3.9
2/18 12:40	54.6	↓-3.6
2/18 12:50	51.4	↓-3.2
2/18 13:00	48.4	↓-3.0
2/18 13:10	45.8	↓-2.6
2/18 13:20	43.5	↓-2.3
2/18 13:30	41.7	↓-1.8
2/18 13:40	40.1	↓-1.6
2/18 13:50	39.0	↓-1.1
2/18 14:00	38.3	↓-0.7
2/18 14:10	38.0	↓-0.3	干潮
2/18 14:20	38.0	0
2/18 14:30	38.4	↑0.4
2/18 14:40	39.3	↑0.9
2/18 14:50	40.5	↑1.2
2/18 15:00	42.0	↑1.5
2/18 15:10	43.9	↑1.9
2/18 15:20	46.2	↑2.3
2/18 15:30	48.7	↑2.5
2/18 15:40	51.6	↑2.9
2/18 15:50	54.7	↑3.1
2/18 16:00	58.1	↑3.4
2/18 16:10	61.7	↑3.6
2/18 16:20	65.5	↑3.8
2/18 16:30	69.4	↑3.9
2/18 16:40	73.5	↑4.1
2/18 16:50	77.7	↑4.2
2/18 17:00	82.0	↑4.3
2/18 17:10	86.3	↑4.3
2/18 17:20	90.6	↑4.3
2/18 17:30	94.9	↑4.3
2/18 17:40	99.1	↑4.2
2/18 17:50	103.3	↑4.2
2/18 18:00	107.4	↑4.1
2/18 18:10	111.3	↑3.9
2/18 18:20	115.0	↑3.7
2/18 18:30	118.6	↑3.6
2/18 18:40	121.9	↑3.3
2/18 18:50	125.1	↑3.2
2/18 19:00	127.9	↑2.8
2/18 19:10	130.5	↑2.6
2/18 19:20	132.8	↑2.3
2/18 19:30	134.8	↑2.0
2/18 19:40	136.4	↑1.6
2/18 19:50	137.8	↑1.4
2/18 20:00	138.8	↑1.0
2/18 20:10	139.5	↑0.7
2/18 20:20	139.8	↑0.3	満潮
2/18 20:30	139.8	0
2/18 20:40	139.4	↓-0.4
2/18 20:50	138.8	↓-0.6
2/18 21:00	137.8	↓-1.0
2/18 21:10	136.5	↓-1.3
2/18 21:20	134.9	↓-1.6
2/18 21:30	133.1	↓-1.8
2/18 21:40	130.9	↓-2.2
2/18 21:50	128.6	↓-2.3
2/18 22:00	126.0	↓-2.6
2/18 22:10	123.2	↓-2.8
2/18 22:20	120.3	↓-2.9
2/18 22:30	117.2	↓-3.1
2/18 22:40	113.9	↓-3.3
2/18 22:50	110.6	↓-3.3
2/18 23:00	107.3	↓-3.3
2/18 23:10	103.8	↓-3.5
2/18 23:20	100.4	↓-3.4
2/18 23:30	97.0	↓-3.4
2/18 23:40	93.7	↓-3.3
2/18 23:50	90.4	↓-3.3