20 (土)	05:07	11:57	18:50	-
	147cm	-16cm	137cm	-
中潮 出 05:01 入 18:16 出 20:59 入 06:10 潮干狩り ◎ 09:23～14:33

上総勝浦（千葉）2030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	59.8	↑0.9
4/20 00:10	61.0	↑1.2
4/20 00:20	62.6	↑1.6
4/20 00:30	64.5	↑1.9
4/20 00:40	66.7	↑2.2
4/20 00:50	69.2	↑2.5
4/20 01:00	72.0	↑2.8
4/20 01:10	75.1	↑3.1
4/20 01:20	78.4	↑3.3
4/20 01:30	81.9	↑3.5
4/20 01:40	85.6	↑3.7
4/20 01:50	89.4	↑3.8
4/20 02:00	93.4	↑4.0
4/20 02:10	97.4	↑4.0
4/20 02:20	101.5	↑4.1
4/20 02:30	105.6	↑4.1
4/20 02:40	109.7	↑4.1
4/20 02:50	113.8	↑4.1
4/20 03:00	117.7	↑3.9
4/20 03:10	121.5	↑3.8
4/20 03:20	125.2	↑3.7
4/20 03:30	128.7	↑3.5
4/20 03:40	131.9	↑3.2
4/20 03:50	134.9	↑3.0
4/20 04:00	137.6	↑2.7
4/20 04:10	140.0	↑2.4
4/20 04:20	142.1	↑2.1
4/20 04:30	143.8	↑1.7
4/20 04:40	145.1	↑1.3
4/20 04:50	146.0	↑0.9
4/20 05:00	146.5	↑0.5	満潮
4/20 05:10	146.6	↑0.1
4/20 05:20	146.2	↓-0.4
4/20 05:30	145.4	↓-0.8
4/20 05:40	144.1	↓-1.3
4/20 05:50	142.4	↓-1.7
4/20 06:00	140.2	↓-2.2
4/20 06:10	137.6	↓-2.6
4/20 06:20	134.6	↓-3.0
4/20 06:30	131.2	↓-3.4
4/20 06:40	127.4	↓-3.8
4/20 06:50	123.2	↓-4.2
4/20 07:00	118.7	↓-4.5
4/20 07:10	113.8	↓-4.9
4/20 07:20	108.7	↓-5.1
4/20 07:30	103.3	↓-5.4
4/20 07:40	97.6	↓-5.7
4/20 07:50	91.8	↓-5.8
4/20 08:00	85.8	↓-6.0
4/20 08:10	79.6	↓-6.2
4/20 08:20	73.4	↓-6.2
4/20 08:30	67.1	↓-6.3	最大潮位差
4/20 08:40	60.8	↓-6.3	最大潮位差
4/20 08:50	54.5	↓-6.3	最大潮位差
4/20 09:00	48.2	↓-6.3	最大潮位差
4/20 09:10	42.1	↓-6.1
4/20 09:20	36.1	↓-6.0
4/20 09:30	30.3	↓-5.8
4/20 09:40	24.7	↓-5.6
4/20 09:50	19.3	↓-5.4
4/20 10:00	14.2	↓-5.1
4/20 10:10	9.4	↓-4.8
4/20 10:20	4.9	↓-4.5
4/20 10:30	0.8	↓-4.1
4/20 10:40	-2.9	↓-3.7
4/20 10:50	-6.2	↓-3.3
4/20 11:00	-9.0	↓-2.8
4/20 11:10	-11.4	↓-2.4
4/20 11:20	-13.4	↓-2.0
4/20 11:30	-14.9	↓-1.5
4/20 11:40	-15.8	↓-0.9
4/20 11:50	-16.4	↓-0.6	干潮
4/20 12:00	-16.4	0
4/20 12:10	-15.9	↑0.5
4/20 12:20	-15.0	↑0.9
4/20 12:30	-13.6	↑1.4
4/20 12:40	-11.7	↑1.9
4/20 12:50	-9.4	↑2.3
4/20 13:00	-6.7	↑2.7
4/20 13:10	-3.6	↑3.1
4/20 13:20	-0.1	↑3.5
4/20 13:30	3.8	↑3.9
4/20 13:40	8.0	↑4.2
4/20 13:50	12.6	↑4.6
4/20 14:00	17.4	↑4.8
4/20 14:10	22.4	↑5.0
4/20 14:20	27.7	↑5.3
4/20 14:30	33.1	↑5.4
4/20 14:40	38.7	↑5.6
4/20 14:50	44.5	↑5.8
4/20 15:00	50.3	↑5.8
4/20 15:10	56.1	↑5.8
4/20 15:20	62.0	↑5.9
4/20 15:30	67.8	↑5.8
4/20 15:40	73.6	↑5.8
4/20 15:50	79.3	↑5.7
4/20 16:00	84.9	↑5.6
4/20 16:10	90.3	↑5.4
4/20 16:20	95.6	↑5.3
4/20 16:30	100.6	↑5.0
4/20 16:40	105.4	↑4.8
4/20 16:50	109.9	↑4.5
4/20 17:00	114.1	↑4.2
4/20 17:10	118.0	↑3.9
4/20 17:20	121.6	↑3.6
4/20 17:30	124.8	↑3.2
4/20 17:40	127.6	↑2.8
4/20 17:50	130.1	↑2.5
4/20 18:00	132.2	↑2.1
4/20 18:10	133.9	↑1.7
4/20 18:20	135.2	↑1.3
4/20 18:30	136.2	↑1.0
4/20 18:40	136.7	↑0.5	満潮
4/20 18:50	136.9	↑0.2	満潮
4/20 19:00	136.6	↓-0.3
4/20 19:10	136.1	↓-0.5
4/20 19:20	135.2	↓-0.9
4/20 19:30	133.9	↓-1.3
4/20 19:40	132.3	↓-1.6
4/20 19:50	130.5	↓-1.8
4/20 20:00	128.3	↓-2.2
4/20 20:10	126.0	↓-2.3
4/20 20:20	123.3	↓-2.7
4/20 20:30	120.5	↓-2.8
4/20 20:40	117.6	↓-2.9
4/20 20:50	114.4	↓-3.2
4/20 21:00	111.2	↓-3.2
4/20 21:10	107.9	↓-3.3
4/20 21:20	104.5	↓-3.4
4/20 21:30	101.1	↓-3.4
4/20 21:40	97.7	↓-3.4
4/20 21:50	94.4	↓-3.3
4/20 22:00	91.1	↓-3.3
4/20 22:10	88.0	↓-3.1
4/20 22:20	84.9	↓-3.1
4/20 22:30	82.0	↓-2.9
4/20 22:40	79.3	↓-2.7
4/20 22:50	76.8	↓-2.5
4/20 23:00	74.6	↓-2.2
4/20 23:10	72.6	↓-2.0
4/20 23:20	70.8	↓-1.8
4/20 23:30	69.4	↓-1.4
4/20 23:40	68.2	↓-1.2
4/20 23:50	67.4	↓-0.8