20 (水)	03:14	09:12	15:02	21:19
	124cm	54cm	121cm	36cm
中潮 出 05:02 入 18:16 出 03:42 入 15:14

上総勝浦（千葉）2039年04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
4/20 00:00	80.2	↑3.5
4/20 00:10	83.7	↑3.5
4/20 00:20	87.2	↑3.5
4/20 00:30	90.7	↑3.5
4/20 00:40	94.1	↑3.4
4/20 00:50	97.3	↑3.2
4/20 01:00	100.5	↑3.2
4/20 01:10	103.5	↑3.0
4/20 01:20	106.4	↑2.9
4/20 01:30	109.1	↑2.7
4/20 01:40	111.6	↑2.5
4/20 01:50	113.9	↑2.3
4/20 02:00	116.0	↑2.1
4/20 02:10	117.8	↑1.8
4/20 02:20	119.4	↑1.6
4/20 02:30	120.7	↑1.3
4/20 02:40	121.8	↑1.1
4/20 02:50	122.5	↑0.7
4/20 03:00	123.0	↑0.5
4/20 03:10	123.2	↑0.2	満潮
4/20 03:20	123.2	0
4/20 03:30	122.8	↓-0.4
4/20 03:40	122.2	↓-0.6
4/20 03:50	121.3	↓-0.9
4/20 04:00	120.2	↓-1.1
4/20 04:10	118.8	↓-1.4
4/20 04:20	117.1	↓-1.7
4/20 04:30	115.3	↓-1.8
4/20 04:40	113.2	↓-2.1
4/20 04:50	110.9	↓-2.3
4/20 05:00	108.5	↓-2.4
4/20 05:10	105.9	↓-2.6
4/20 05:20	103.2	↓-2.7
4/20 05:30	100.3	↓-2.9
4/20 05:40	97.4	↓-2.9
4/20 05:50	94.4	↓-3.0
4/20 06:00	91.4	↓-3.0
4/20 06:10	88.3	↓-3.1
4/20 06:20	85.2	↓-3.1
4/20 06:30	82.2	↓-3.0
4/20 06:40	79.2	↓-3.0
4/20 06:50	76.3	↓-2.9
4/20 07:00	73.5	↓-2.8
4/20 07:10	70.7	↓-2.8
4/20 07:20	68.2	↓-2.5
4/20 07:30	65.7	↓-2.5
4/20 07:40	63.5	↓-2.2
4/20 07:50	61.4	↓-2.1
4/20 08:00	59.5	↓-1.9
4/20 08:10	57.9	↓-1.6
4/20 08:20	56.4	↓-1.5
4/20 08:30	55.3	↓-1.1
4/20 08:40	54.3	↓-1.0
4/20 08:50	53.6	↓-0.7
4/20 09:00	53.2	↓-0.4
4/20 09:10	53.1	↓-0.1	干潮
4/20 09:20	53.2	↑0.1
4/20 09:30	53.6	↑0.4
4/20 09:40	54.2	↑0.6
4/20 09:50	55.1	↑0.9
4/20 10:00	56.3	↑1.2
4/20 10:10	57.7	↑1.4
4/20 10:20	59.3	↑1.6
4/20 10:30	61.1	↑1.8
4/20 10:40	63.2	↑2.1
4/20 10:50	65.4	↑2.2
4/20 11:00	67.8	↑2.4
4/20 11:10	70.3	↑2.5
4/20 11:20	73.0	↑2.7
4/20 11:30	75.8	↑2.8
4/20 11:40	78.7	↑2.9
4/20 11:50	81.6	↑2.9
4/20 12:00	84.6	↑3.0
4/20 12:10	87.6	↑3.0
4/20 12:20	90.6	↑3.0
4/20 12:30	93.5	↑2.9
4/20 12:40	96.5	↑3.0
4/20 12:50	99.3	↑2.8
4/20 13:00	102.0	↑2.7
4/20 13:10	104.7	↑2.7
4/20 13:20	107.1	↑2.4
4/20 13:30	109.5	↑2.4
4/20 13:40	111.6	↑2.1
4/20 13:50	113.6	↑2.0
4/20 14:00	115.3	↑1.7
4/20 14:10	116.8	↑1.5
4/20 14:20	118.0	↑1.2
4/20 14:30	119.0	↑1.0
4/20 14:40	119.8	↑0.8
4/20 14:50	120.2	↑0.4
4/20 15:00	120.4	↑0.2	満潮
4/20 15:10	120.3	↓-0.1
4/20 15:20	119.9	↓-0.4
4/20 15:30	119.3	↓-0.6
4/20 15:40	118.3	↓-1.0
4/20 15:50	117.1	↓-1.2
4/20 16:00	115.6	↓-1.5
4/20 16:10	113.8	↓-1.8
4/20 16:20	111.8	↓-2.0
4/20 16:30	109.6	↓-2.2
4/20 16:40	107.1	↓-2.5
4/20 16:50	104.5	↓-2.6
4/20 17:00	101.6	↓-2.9
4/20 17:10	98.6	↓-3.0
4/20 17:20	95.5	↓-3.1
4/20 17:30	92.2	↓-3.3
4/20 17:40	88.8	↓-3.4
4/20 17:50	85.3	↓-3.5
4/20 18:00	81.8	↓-3.5
4/20 18:10	78.3	↓-3.5
4/20 18:20	74.8	↓-3.5
4/20 18:30	71.3	↓-3.5
4/20 18:40	67.8	↓-3.5
4/20 18:50	64.4	↓-3.4
4/20 19:00	61.1	↓-3.3
4/20 19:10	57.9	↓-3.2
4/20 19:20	54.9	↓-3.0
4/20 19:30	52.0	↓-2.9
4/20 19:40	49.3	↓-2.7
4/20 19:50	46.8	↓-2.5
4/20 20:00	44.5	↓-2.3
4/20 20:10	42.5	↓-2.0
4/20 20:20	40.7	↓-1.8
4/20 20:30	39.1	↓-1.6
4/20 20:40	37.9	↓-1.2
4/20 20:50	36.9	↓-1.0
4/20 21:00	36.2	↓-0.7
4/20 21:10	35.8	↓-0.4	干潮
4/20 21:20	35.8	0
4/20 21:30	36.0	↑0.2
4/20 21:40	36.5	↑0.5
4/20 21:50	37.4	↑0.9
4/20 22:00	38.5	↑1.1
4/20 22:10	39.9	↑1.4
4/20 22:20	41.6	↑1.7
4/20 22:30	43.6	↑2.0
4/20 22:40	45.8	↑2.2
4/20 22:50	48.3	↑2.5
4/20 23:00	51.0	↑2.7
4/20 23:10	54.0	↑3.0
4/20 23:20	57.1	↑3.1
4/20 23:30	60.4	↑3.3
4/20 23:40	63.8	↑3.4
4/20 23:50	67.4	↑3.6	最大潮位差