20 (日)	04:16	10:39	17:09	22:58
	144cm	1cm	146cm	48cm
大潮 出 05:01 入 18:16 出 04:58 入 18:31 潮干狩り ◎ 08:35～12:43

上総勝浦（千葉）2042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	55.5	↑3.5
4/20 00:10	59.2	↑3.7
4/20 00:20	63.2	↑4.0
4/20 00:30	67.3	↑4.1
4/20 00:40	71.6	↑4.3
4/20 00:50	76.1	↑4.5
4/20 01:00	80.7	↑4.6
4/20 01:10	85.4	↑4.7
4/20 01:20	90.1	↑4.7
4/20 01:30	94.8	↑4.7
4/20 01:40	99.5	↑4.7
4/20 01:50	104.1	↑4.6
4/20 02:00	108.6	↑4.5
4/20 02:10	113.0	↑4.4
4/20 02:20	117.2	↑4.2
4/20 02:30	121.1	↑3.9
4/20 02:40	124.9	↑3.8
4/20 02:50	128.4	↑3.5
4/20 03:00	131.6	↑3.2
4/20 03:10	134.4	↑2.8
4/20 03:20	136.9	↑2.5
4/20 03:30	139.0	↑2.1
4/20 03:40	140.8	↑1.8
4/20 03:50	142.1	↑1.3
4/20 04:00	143.0	↑0.9
4/20 04:10	143.4	↑0.4	満潮
4/20 04:20	143.4	0
4/20 04:30	143.0	↓-0.4
4/20 04:40	142.1	↓-0.9
4/20 04:50	140.7	↓-1.4
4/20 05:00	138.9	↓-1.8
4/20 05:10	136.7	↓-2.2
4/20 05:20	134.0	↓-2.7
4/20 05:30	130.9	↓-3.1
4/20 05:40	127.4	↓-3.5
4/20 05:50	123.5	↓-3.9
4/20 06:00	119.3	↓-4.2
4/20 06:10	114.8	↓-4.5
4/20 06:20	110.0	↓-4.8
4/20 06:30	104.9	↓-5.1
4/20 06:40	99.6	↓-5.3
4/20 06:50	94.1	↓-5.5
4/20 07:00	88.4	↓-5.7
4/20 07:10	82.6	↓-5.8
4/20 07:20	76.8	↓-5.8
4/20 07:30	70.9	↓-5.9	最大潮位差
4/20 07:40	65.0	↓-5.9	最大潮位差
4/20 07:50	59.1	↓-5.9	最大潮位差
4/20 08:00	53.3	↓-5.8
4/20 08:10	47.7	↓-5.6
4/20 08:20	42.2	↓-5.5
4/20 08:30	36.9	↓-5.3
4/20 08:40	31.8	↓-5.1
4/20 08:50	27.0	↓-4.8
4/20 09:00	22.6	↓-4.4
4/20 09:10	18.4	↓-4.2
4/20 09:20	14.6	↓-3.8
4/20 09:30	11.2	↓-3.4
4/20 09:40	8.3	↓-2.9
4/20 09:50	5.7	↓-2.6
4/20 10:00	3.7	↓-2.0
4/20 10:10	2.0	↓-1.7
4/20 10:20	0.9	↓-1.1
4/20 10:30	0.3	↓-0.6	干潮
4/20 10:40	0.1	↓-0.2
4/20 10:50	0.4	↑0.3
4/20 11:00	1.3	↑0.9
4/20 11:10	2.6	↑1.3
4/20 11:20	4.4	↑1.8
4/20 11:30	6.6	↑2.2
4/20 11:40	9.3	↑2.7
4/20 11:50	12.4	↑3.1
4/20 12:00	15.9	↑3.5
4/20 12:10	19.8	↑3.9
4/20 12:20	24.0	↑4.2
4/20 12:30	28.6	↑4.6
4/20 12:40	33.5	↑4.9
4/20 12:50	38.6	↑5.1
4/20 13:00	43.9	↑5.3
4/20 13:10	49.4	↑5.5
4/20 13:20	55.1	↑5.7
4/20 13:30	60.9	↑5.8
4/20 13:40	66.8	↑5.9	最大潮位差
4/20 13:50	72.6	↑5.8
4/20 14:00	78.5	↑5.9	最大潮位差
4/20 14:10	84.4	↑5.9	最大潮位差
4/20 14:20	90.1	↑5.7
4/20 14:30	95.8	↑5.7
4/20 14:40	101.3	↑5.5
4/20 14:50	106.6	↑5.3
4/20 15:00	111.6	↑5.0
4/20 15:10	116.4	↑4.8
4/20 15:20	121.0	↑4.6
4/20 15:30	125.2	↑4.2
4/20 15:40	129.0	↑3.8
4/20 15:50	132.5	↑3.5
4/20 16:00	135.7	↑3.2
4/20 16:10	138.4	↑2.7
4/20 16:20	140.7	↑2.3
4/20 16:30	142.6	↑1.9
4/20 16:40	144.0	↑1.4
4/20 16:50	145.0	↑1.0
4/20 17:00	145.6	↑0.6	満潮
4/20 17:10	145.8	↑0.2
4/20 17:20	145.5	↓-0.3
4/20 17:30	144.8	↓-0.7
4/20 17:40	143.6	↓-1.2
4/20 17:50	142.1	↓-1.5
4/20 18:00	140.2	↓-1.9
4/20 18:10	138.0	↓-2.2
4/20 18:20	135.4	↓-2.6
4/20 18:30	132.4	↓-3.0
4/20 18:40	129.2	↓-3.2
4/20 18:50	125.8	↓-3.4
4/20 19:00	122.1	↓-3.7
4/20 19:10	118.2	↓-3.9
4/20 19:20	114.1	↓-4.1
4/20 19:30	109.9	↓-4.2
4/20 19:40	105.6	↓-4.3
4/20 19:50	101.2	↓-4.4
4/20 20:00	96.8	↓-4.4
4/20 20:10	92.4	↓-4.4
4/20 20:20	88.1	↓-4.3
4/20 20:30	83.8	↓-4.3
4/20 20:40	79.6	↓-4.2
4/20 20:50	75.5	↓-4.1
4/20 21:00	71.6	↓-3.9
4/20 21:10	68.0	↓-3.6
4/20 21:20	64.5	↓-3.5
4/20 21:30	61.3	↓-3.2
4/20 21:40	58.4	↓-2.9
4/20 21:50	55.8	↓-2.6
4/20 22:00	53.5	↓-2.3
4/20 22:10	51.6	↓-1.9
4/20 22:20	50.0	↓-1.6
4/20 22:30	48.8	↓-1.2
4/20 22:40	47.9	↓-0.9
4/20 22:50	47.5	↓-0.4	干潮
4/20 23:00	47.4	↓-0.1
4/20 23:10	47.7	↑0.3
4/20 23:20	48.5	↑0.8
4/20 23:30	49.6	↑1.1
4/20 23:40	51.0	↑1.4
4/20 23:50	52.8	↑1.8