20 (木)	04:35	10:50	16:43	22:52
	168cm	73cm	157cm	56cm
若潮 出 05:35 入 18:46 出 02:56 入 14:40

日振島（愛媛）2028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	82.2	↑3.5
4/20 00:10	85.8	↑3.6
4/20 00:20	89.6	↑3.8
4/20 00:30	93.6	↑4.0
4/20 00:40	97.7	↑4.1
4/20 00:50	101.8	↑4.1
4/20 01:00	106.1	↑4.3
4/20 01:10	110.3	↑4.2
4/20 01:20	114.7	↑4.4	最大潮位差
4/20 01:30	118.9	↑4.2
4/20 01:40	123.2	↑4.3
4/20 01:50	127.4	↑4.2
4/20 02:00	131.5	↑4.1
4/20 02:10	135.5	↑4.0
4/20 02:20	139.4	↑3.9
4/20 02:30	143.1	↑3.7
4/20 02:40	146.6	↑3.5
4/20 02:50	149.9	↑3.3
4/20 03:00	152.9	↑3.0
4/20 03:10	155.7	↑2.8
4/20 03:20	158.3	↑2.6
4/20 03:30	160.5	↑2.2
4/20 03:40	162.5	↑2.0
4/20 03:50	164.1	↑1.6
4/20 04:00	165.5	↑1.4
4/20 04:10	166.5	↑1.0
4/20 04:20	167.1	↑0.6
4/20 04:30	167.4	↑0.3	満潮
4/20 04:40	167.4	0
4/20 04:50	167.1	↓-0.3
4/20 05:00	166.4	↓-0.7
4/20 05:10	165.3	↓-1.1
4/20 05:20	164.0	↓-1.3
4/20 05:30	162.3	↓-1.7
4/20 05:40	160.4	↓-1.9
4/20 05:50	158.1	↓-2.3
4/20 06:00	155.6	↓-2.5
4/20 06:10	152.9	↓-2.7
4/20 06:20	149.9	↓-3.0
4/20 06:30	146.6	↓-3.3
4/20 06:40	143.3	↓-3.3
4/20 06:50	139.7	↓-3.6
4/20 07:00	136.0	↓-3.7
4/20 07:10	132.2	↓-3.8
4/20 07:20	128.3	↓-3.9
4/20 07:30	124.3	↓-4.0
4/20 07:40	120.4	↓-3.9
4/20 07:50	116.4	↓-4.0
4/20 08:00	112.4	↓-4.0
4/20 08:10	108.5	↓-3.9
4/20 08:20	104.7	↓-3.8
4/20 08:30	101.0	↓-3.7
4/20 08:40	97.4	↓-3.6
4/20 08:50	94.0	↓-3.4
4/20 09:00	90.8	↓-3.2
4/20 09:10	87.7	↓-3.1
4/20 09:20	84.9	↓-2.8
4/20 09:30	82.4	↓-2.5
4/20 09:40	80.1	↓-2.3
4/20 09:50	78.1	↓-2.0
4/20 10:00	76.4	↓-1.7
4/20 10:10	75.0	↓-1.4
4/20 10:20	73.9	↓-1.1
4/20 10:30	73.1	↓-0.8
4/20 10:40	72.7	↓-0.4	干潮
4/20 10:50	72.5	↓-0.2	干潮
4/20 11:00	72.7	↑0.2
4/20 11:10	73.3	↑0.6
4/20 11:20	74.1	↑0.8
4/20 11:30	75.3	↑1.2
4/20 11:40	76.8	↑1.5
4/20 11:50	78.6	↑1.8
4/20 12:00	80.6	↑2.0
4/20 12:10	82.9	↑2.3
4/20 12:20	85.5	↑2.6
4/20 12:30	88.3	↑2.8
4/20 12:40	91.2	↑2.9
4/20 12:50	94.4	↑3.2
4/20 13:00	97.7	↑3.3
4/20 13:10	101.2	↑3.5
4/20 13:20	104.7	↑3.5
4/20 13:30	108.4	↑3.7
4/20 13:40	112.0	↑3.6
4/20 13:50	115.7	↑3.7
4/20 14:00	119.4	↑3.7
4/20 14:10	123.1	↑3.7
4/20 14:20	126.7	↑3.6
4/20 14:30	130.1	↑3.4
4/20 14:40	133.5	↑3.4
4/20 14:50	136.7	↑3.2
4/20 15:00	139.8	↑3.1
4/20 15:10	142.6	↑2.8
4/20 15:20	145.2	↑2.6
4/20 15:30	147.6	↑2.4
4/20 15:40	149.7	↑2.1
4/20 15:50	151.6	↑1.9
4/20 16:00	153.1	↑1.5
4/20 16:10	154.3	↑1.2
4/20 16:20	155.2	↑0.9
4/20 16:30	155.8	↑0.6
4/20 16:40	156.0	↑0.2	満潮
4/20 16:50	155.9	↓-0.1
4/20 17:00	155.5	↓-0.4
4/20 17:10	154.7	↓-0.8
4/20 17:20	153.6	↓-1.1
4/20 17:30	152.1	↓-1.5
4/20 17:40	150.3	↓-1.8
4/20 17:50	148.2	↓-2.1
4/20 18:00	145.8	↓-2.4
4/20 18:10	143.1	↓-2.7
4/20 18:20	140.2	↓-2.9
4/20 18:30	137.0	↓-3.2
4/20 18:40	133.5	↓-3.5
4/20 18:50	129.9	↓-3.6
4/20 19:00	126.1	↓-3.8
4/20 19:10	122.1	↓-4.0
4/20 19:20	118.1	↓-4.0
4/20 19:30	113.9	↓-4.2
4/20 19:40	109.6	↓-4.3
4/20 19:50	105.4	↓-4.2
4/20 20:00	101.1	↓-4.3
4/20 20:10	96.9	↓-4.2
4/20 20:20	92.7	↓-4.2
4/20 20:30	88.6	↓-4.1
4/20 20:40	84.6	↓-4.0
4/20 20:50	80.8	↓-3.8
4/20 21:00	77.2	↓-3.6
4/20 21:10	73.7	↓-3.5
4/20 21:20	70.5	↓-3.2
4/20 21:30	67.6	↓-2.9
4/20 21:40	64.9	↓-2.7
4/20 21:50	62.6	↓-2.3
4/20 22:00	60.5	↓-2.1
4/20 22:10	58.8	↓-1.7
4/20 22:20	57.5	↓-1.3
4/20 22:30	56.5	↓-1.0
4/20 22:40	55.9	↓-0.6
4/20 22:50	55.6	↓-0.3	干潮
4/20 23:00	55.8	↑0.2
4/20 23:10	56.3	↑0.5
4/20 23:20	57.2	↑0.9
4/20 23:30	58.5	↑1.3
4/20 23:40	60.2	↑1.7
4/20 23:50	62.3	↑2.1