20 (土)	05:45	11:15	16:58	23:41
	138cm	57cm	149cm	-8cm
大潮 出 06:20 入 17:27 出 18:07 入 06:47

上総勝浦（千葉）2038年02月20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
2/20 00:00	-4.0	↑2.4
2/20 00:10	-1.1	↑2.9
2/20 00:20	2.2	↑3.3
2/20 00:30	5.9	↑3.7
2/20 00:40	9.9	↑4.0
2/20 00:50	14.3	↑4.4
2/20 01:00	18.9	↑4.6
2/20 01:10	23.8	↑4.9
2/20 01:20	29.0	↑5.2
2/20 01:30	34.4	↑5.4
2/20 01:40	39.9	↑5.5
2/20 01:50	45.6	↑5.7
2/20 02:00	51.4	↑5.8
2/20 02:10	57.2	↑5.8
2/20 02:20	63.1	↑5.9
2/20 02:30	68.9	↑5.8
2/20 02:40	74.7	↑5.8
2/20 02:50	80.5	↑5.8
2/20 03:00	86.1	↑5.6
2/20 03:10	91.5	↑5.4
2/20 03:20	96.8	↑5.3
2/20 03:30	101.9	↑5.1
2/20 03:40	106.7	↑4.8
2/20 03:50	111.2	↑4.5
2/20 04:00	115.4	↑4.2
2/20 04:10	119.3	↑3.9
2/20 04:20	122.9	↑3.6
2/20 04:30	126.1	↑3.2
2/20 04:40	128.9	↑2.8
2/20 04:50	131.3	↑2.4
2/20 05:00	133.3	↑2.0
2/20 05:10	134.9	↑1.6
2/20 05:20	136.1	↑1.2
2/20 05:30	136.9	↑0.8
2/20 05:40	137.2	↑0.3	満潮
2/20 05:50	137.2	0
2/20 06:00	136.8	↓-0.4
2/20 06:10	135.9	↓-0.9
2/20 06:20	134.8	↓-1.1
2/20 06:30	133.2	↓-1.6
2/20 06:40	131.3	↓-1.9
2/20 06:50	129.1	↓-2.2
2/20 07:00	126.6	↓-2.5
2/20 07:10	123.9	↓-2.7
2/20 07:20	120.9	↓-3.0
2/20 07:30	117.7	↓-3.2
2/20 07:40	114.3	↓-3.4
2/20 07:50	110.7	↓-3.6
2/20 08:00	107.1	↓-3.6
2/20 08:10	103.3	↓-3.8
2/20 08:20	99.5	↓-3.8
2/20 08:30	95.7	↓-3.8
2/20 08:40	91.9	↓-3.8
2/20 08:50	88.1	↓-3.8
2/20 09:00	84.4	↓-3.7
2/20 09:10	80.9	↓-3.5
2/20 09:20	77.5	↓-3.4
2/20 09:30	74.2	↓-3.3
2/20 09:40	71.2	↓-3.0
2/20 09:50	68.3	↓-2.9
2/20 10:00	65.8	↓-2.5
2/20 10:10	63.5	↓-2.3
2/20 10:20	61.5	↓-2.0
2/20 10:30	59.8	↓-1.7
2/20 10:40	58.5	↓-1.3
2/20 10:50	57.4	↓-1.1
2/20 11:00	56.8	↓-0.6
2/20 11:10	56.5	↓-0.3	干潮
2/20 11:20	56.5	0
2/20 11:30	56.9	↑0.4
2/20 11:40	57.7	↑0.8
2/20 11:50	58.8	↑1.1
2/20 12:00	60.3	↑1.5
2/20 12:10	62.1	↑1.8
2/20 12:20	64.2	↑2.1
2/20 12:30	66.7	↑2.5
2/20 12:40	69.4	↑2.7
2/20 12:50	72.4	↑3.0
2/20 13:00	75.6	↑3.2
2/20 13:10	79.1	↑3.5
2/20 13:20	82.7	↑3.6
2/20 13:30	86.5	↑3.8
2/20 13:40	90.5	↑4.0
2/20 13:50	94.6	↑4.1
2/20 14:00	98.7	↑4.1
2/20 14:10	102.8	↑4.1
2/20 14:20	107.0	↑4.2
2/20 14:30	111.2	↑4.2
2/20 14:40	115.2	↑4.0
2/20 14:50	119.2	↑4.0
2/20 15:00	123.1	↑3.9
2/20 15:10	126.8	↑3.7
2/20 15:20	130.3	↑3.5
2/20 15:30	133.5	↑3.2
2/20 15:40	136.5	↑3.0
2/20 15:50	139.2	↑2.7
2/20 16:00	141.6	↑2.4
2/20 16:10	143.7	↑2.1
2/20 16:20	145.4	↑1.7
2/20 16:30	146.7	↑1.3
2/20 16:40	147.6	↑0.9
2/20 16:50	148.1	↑0.5	満潮
2/20 17:00	148.2	↑0.1
2/20 17:10	147.8	↓-0.4
2/20 17:20	147.1	↓-0.7
2/20 17:30	145.8	↓-1.3
2/20 17:40	144.2	↓-1.6
2/20 17:50	142.1	↓-2.1
2/20 18:00	139.5	↓-2.6
2/20 18:10	136.6	↓-2.9
2/20 18:20	133.3	↓-3.3
2/20 18:30	129.5	↓-3.8
2/20 18:40	125.4	↓-4.1
2/20 18:50	121.0	↓-4.4
2/20 19:00	116.3	↓-4.7
2/20 19:10	111.2	↓-5.1
2/20 19:20	105.9	↓-5.3
2/20 19:30	100.4	↓-5.5
2/20 19:40	94.7	↓-5.7
2/20 19:50	88.8	↓-5.9
2/20 20:00	82.8	↓-6.0
2/20 20:10	76.6	↓-6.2	最大潮位差
2/20 20:20	70.5	↓-6.1
2/20 20:30	64.3	↓-6.2	最大潮位差
2/20 20:40	58.2	↓-6.1
2/20 20:50	52.1	↓-6.1
2/20 21:00	46.1	↓-6.0
2/20 21:10	40.2	↓-5.9
2/20 21:20	34.6	↓-5.6
2/20 21:30	29.1	↓-5.5
2/20 21:40	23.9	↓-5.2
2/20 21:50	19.0	↓-4.9
2/20 22:00	14.4	↓-4.6
2/20 22:10	10.1	↓-4.3
2/20 22:20	6.2	↓-3.9
2/20 22:30	2.7	↓-3.5
2/20 22:40	-0.3	↓-3.0
2/20 22:50	-3.0	↓-2.7
2/20 23:00	-5.1	↓-2.1
2/20 23:10	-6.8	↓-1.7
2/20 23:20	-8.0	↓-1.2
2/20 23:30	-8.7	↓-0.7
2/20 23:40	-9.0	↓-0.3	干潮
2/20 23:50	-8.7	↑0.3