20 (火)	04:45	11:09	17:41	23:30
	146cm	0cm	147cm	44cm
大潮 出 05:01 入 18:16 出 19:15 入 05:40 潮干狩り ◎ 09:05～13:14

上総勝浦（千葉）2038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	43.1	↑2.7
4/20 00:10	46.1	↑3.0
4/20 00:20	49.5	↑3.4
4/20 00:30	53.2	↑3.7
4/20 00:40	57.1	↑3.9
4/20 00:50	61.3	↑4.2
4/20 01:00	65.7	↑4.4
4/20 01:10	70.3	↑4.6
4/20 01:20	75.0	↑4.7
4/20 01:30	79.9	↑4.9
4/20 01:40	84.8	↑4.9
4/20 01:50	89.8	↑5.0
4/20 02:00	94.7	↑4.9
4/20 02:10	99.6	↑4.9
4/20 02:20	104.5	↑4.9
4/20 02:30	109.2	↑4.7
4/20 02:40	113.8	↑4.6
4/20 02:50	118.2	↑4.4
4/20 03:00	122.4	↑4.2
4/20 03:10	126.3	↑3.9
4/20 03:20	129.9	↑3.6
4/20 03:30	133.2	↑3.3
4/20 03:40	136.1	↑2.9
4/20 03:50	138.7	↑2.6
4/20 04:00	140.9	↑2.2
4/20 04:10	142.7	↑1.8
4/20 04:20	144.0	↑1.3
4/20 04:30	144.9	↑0.9
4/20 04:40	145.3	↑0.4	満潮
4/20 04:50	145.2	↓-0.1
4/20 05:00	144.7	↓-0.5
4/20 05:10	143.7	↓-1.0
4/20 05:20	142.3	↓-1.4
4/20 05:30	140.4	↓-1.9
4/20 05:40	138.0	↓-2.4
4/20 05:50	135.2	↓-2.8
4/20 06:00	132.0	↓-3.2
4/20 06:10	128.4	↓-3.6
4/20 06:20	124.5	↓-3.9
4/20 06:30	120.1	↓-4.4
4/20 06:40	115.5	↓-4.6
4/20 06:50	110.6	↓-4.9
4/20 07:00	105.4	↓-5.2
4/20 07:10	100.0	↓-5.4
4/20 07:20	94.4	↓-5.6
4/20 07:30	88.6	↓-5.8
4/20 07:40	82.8	↓-5.8
4/20 07:50	76.9	↓-5.9
4/20 08:00	70.9	↓-6.0	最大潮位差
4/20 08:10	64.9	↓-6.0	最大潮位差
4/20 08:20	59.0	↓-5.9
4/20 08:30	53.2	↓-5.8
4/20 08:40	47.5	↓-5.7
4/20 08:50	42.0	↓-5.5
4/20 09:00	36.7	↓-5.3
4/20 09:10	31.6	↓-5.1
4/20 09:20	26.8	↓-4.8
4/20 09:30	22.4	↓-4.4
4/20 09:40	18.2	↓-4.2
4/20 09:50	14.4	↓-3.8
4/20 10:00	11.1	↓-3.3
4/20 10:10	8.1	↓-3.0
4/20 10:20	5.6	↓-2.5
4/20 10:30	3.5	↓-2.1
4/20 10:40	1.9	↓-1.6
4/20 10:50	0.7	↓-1.2
4/20 11:00	0.1	↓-0.6	干潮
4/20 11:10	-0.1	↓-0.2
4/20 11:20	0.2	↑0.3
4/20 11:30	1.1	↑0.9
4/20 11:40	2.3	↑1.2
4/20 11:50	4.1	↑1.8
4/20 12:00	6.3	↑2.2
4/20 12:10	9.0	↑2.7
4/20 12:20	12.1	↑3.1
4/20 12:30	15.5	↑3.4
4/20 12:40	19.4	↑3.9
4/20 12:50	23.6	↑4.2
4/20 13:00	28.1	↑4.5
4/20 13:10	33.0	↑4.9
4/20 13:20	38.1	↑5.1
4/20 13:30	43.4	↑5.3
4/20 13:40	48.9	↑5.5
4/20 13:50	54.5	↑5.6
4/20 14:00	60.3	↑5.8
4/20 14:10	66.2	↑5.9
4/20 14:20	72.1	↑5.9
4/20 14:30	78.0	↑5.9
4/20 14:40	83.9	↑5.9
4/20 14:50	89.7	↑5.8
4/20 15:00	95.4	↑5.7
4/20 15:10	100.9	↑5.5
4/20 15:20	106.3	↑5.4
4/20 15:30	111.4	↑5.1
4/20 15:40	116.3	↑4.9
4/20 15:50	121.0	↑4.7
4/20 16:00	125.3	↑4.3
4/20 16:10	129.3	↑4.0
4/20 16:20	132.9	↑3.6
4/20 16:30	136.1	↑3.2
4/20 16:40	138.9	↑2.8
4/20 16:50	141.3	↑2.4
4/20 17:00	143.3	↑2.0
4/20 17:10	144.9	↑1.6
4/20 17:20	146.0	↑1.1
4/20 17:30	146.7	↑0.7
4/20 17:40	146.9	↑0.2	満潮
4/20 17:50	146.7	↓-0.2
4/20 18:00	146.0	↓-0.7
4/20 18:10	144.9	↓-1.1
4/20 18:20	143.4	↓-1.5
4/20 18:30	141.5	↓-1.9
4/20 18:40	139.2	↓-2.3
4/20 18:50	136.6	↓-2.6
4/20 19:00	133.6	↓-3.0
4/20 19:10	130.3	↓-3.3
4/20 19:20	126.8	↓-3.5
4/20 19:30	123.0	↓-3.8
4/20 19:40	118.9	↓-4.1
4/20 19:50	114.7	↓-4.2
4/20 20:00	110.3	↓-4.4
4/20 20:10	105.9	↓-4.4
4/20 20:20	101.3	↓-4.6
4/20 20:30	96.7	↓-4.6
4/20 20:40	92.0	↓-4.7
4/20 20:50	87.4	↓-4.6
4/20 21:00	82.9	↓-4.5
4/20 21:10	78.4	↓-4.5
4/20 21:20	74.1	↓-4.3
4/20 21:30	70.0	↓-4.1
4/20 21:40	66.0	↓-4.0
4/20 21:50	62.3	↓-3.7
4/20 22:00	58.9	↓-3.4
4/20 22:10	55.7	↓-3.2
4/20 22:20	52.9	↓-2.8
4/20 22:30	50.4	↓-2.5
4/20 22:40	48.3	↓-2.1
4/20 22:50	46.5	↓-1.8
4/20 23:00	45.1	↓-1.4
4/20 23:10	44.1	↓-1.0
4/20 23:20	43.6	↓-0.5	干潮
4/20 23:30	43.4	↓-0.2	干潮
4/20 23:40	43.7	↑0.3
4/20 23:50	44.3	↑0.6