20 (木)	06:48	00:03	18:14	12:37
	178cm	12cm	170cm	70cm
大潮 出 06:50 入 18:01 出 05:24 入 16:34

日振島（愛媛）2031年02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
2/20 00:00	11.5	↓-0.3	干潮
2/20 00:10	11.6	↑0.1
2/20 00:20	12.3	↑0.7
2/20 00:30	13.4	↑1.1
2/20 00:40	15.0	↑1.6
2/20 00:50	17.1	↑2.1
2/20 01:00	19.7	↑2.6
2/20 01:10	22.7	↑3.0
2/20 01:20	26.2	↑3.5
2/20 01:30	30.1	↑3.9
2/20 01:40	34.4	↑4.3
2/20 01:50	39.1	↑4.7
2/20 02:00	44.0	↑4.9
2/20 02:10	49.4	↑5.4
2/20 02:20	54.9	↑5.5
2/20 02:30	60.8	↑5.9
2/20 02:40	66.8	↑6.0
2/20 02:50	73.0	↑6.2
2/20 03:00	79.3	↑6.3
2/20 03:10	85.8	↑6.5
2/20 03:20	92.2	↑6.4
2/20 03:30	98.7	↑6.5
2/20 03:40	105.2	↑6.5
2/20 03:50	111.6	↑6.4
2/20 04:00	117.9	↑6.3
2/20 04:10	124.0	↑6.1
2/20 04:20	129.9	↑5.9
2/20 04:30	135.7	↑5.8
2/20 04:40	141.1	↑5.4
2/20 04:50	146.3	↑5.2
2/20 05:00	151.2	↑4.9
2/20 05:10	155.7	↑4.5
2/20 05:20	159.9	↑4.2
2/20 05:30	163.6	↑3.7
2/20 05:40	166.9	↑3.3
2/20 05:50	169.8	↑2.9
2/20 06:00	172.3	↑2.5
2/20 06:10	174.2	↑1.9
2/20 06:20	175.8	↑1.6
2/20 06:30	176.8	↑1.0
2/20 06:40	177.4	↑0.6	満潮
2/20 06:50	177.4	0
2/20 07:00	177.1	↓-0.3
2/20 07:10	176.2	↓-0.9
2/20 07:20	174.9	↓-1.3
2/20 07:30	173.2	↓-1.7
2/20 07:40	171.1	↓-2.1
2/20 07:50	168.5	↓-2.6
2/20 08:00	165.6	↓-2.9
2/20 08:10	162.4	↓-3.2
2/20 08:20	158.8	↓-3.6
2/20 08:30	155.0	↓-3.8
2/20 08:40	150.9	↓-4.1
2/20 08:50	146.6	↓-4.3
2/20 09:00	142.1	↓-4.5
2/20 09:10	137.4	↓-4.7
2/20 09:20	132.6	↓-4.8
2/20 09:30	127.8	↓-4.8
2/20 09:40	123.0	↓-4.8
2/20 09:50	118.1	↓-4.9
2/20 10:00	113.3	↓-4.8
2/20 10:10	108.6	↓-4.7
2/20 10:20	104.0	↓-4.6
2/20 10:30	99.5	↓-4.5
2/20 10:40	95.3	↓-4.2
2/20 10:50	91.3	↓-4.0
2/20 11:00	87.5	↓-3.8
2/20 11:10	84.0	↓-3.5
2/20 11:20	80.8	↓-3.2
2/20 11:30	78.0	↓-2.8
2/20 11:40	75.5	↓-2.5
2/20 11:50	73.4	↓-2.1
2/20 12:00	71.7	↓-1.7
2/20 12:10	70.4	↓-1.3
2/20 12:20	69.6	↓-0.8
2/20 12:30	69.1	↓-0.5	干潮
2/20 12:40	69.1	0
2/20 12:50	69.5	↑0.4
2/20 13:00	70.3	↑0.8
2/20 13:10	71.5	↑1.2
2/20 13:20	73.1	↑1.6
2/20 13:30	75.2	↑2.1
2/20 13:40	77.6	↑2.4
2/20 13:50	80.3	↑2.7
2/20 14:00	83.4	↑3.1
2/20 14:10	86.8	↑3.4
2/20 14:20	90.4	↑3.6
2/20 14:30	94.3	↑3.9
2/20 14:40	98.5	↑4.2
2/20 14:50	102.8	↑4.3
2/20 15:00	107.2	↑4.4
2/20 15:10	111.8	↑4.6
2/20 15:20	116.4	↑4.6
2/20 15:30	121.0	↑4.6
2/20 15:40	125.7	↑4.7
2/20 15:50	130.3	↑4.6
2/20 16:00	134.8	↑4.5
2/20 16:10	139.2	↑4.4
2/20 16:20	143.4	↑4.2
2/20 16:30	147.4	↑4.0
2/20 16:40	151.2	↑3.8
2/20 16:50	154.7	↑3.5
2/20 17:00	157.9	↑3.2
2/20 17:10	160.8	↑2.9
2/20 17:20	163.3	↑2.5
2/20 17:30	165.4	↑2.1
2/20 17:40	167.1	↑1.7
2/20 17:50	168.4	↑1.3
2/20 18:00	169.2	↑0.8
2/20 18:10	169.6	↑0.4	満潮
2/20 18:20	169.5	↓-0.1
2/20 18:30	168.9	↓-0.6
2/20 18:40	167.8	↓-1.1
2/20 18:50	166.2	↓-1.6
2/20 19:00	164.2	↓-2.0
2/20 19:10	161.6	↓-2.6
2/20 19:20	158.7	↓-2.9
2/20 19:30	155.2	↓-3.5
2/20 19:40	151.4	↓-3.8
2/20 19:50	147.1	↓-4.3
2/20 20:00	142.4	↓-4.7
2/20 20:10	137.4	↓-5.0
2/20 20:20	132.1	↓-5.3
2/20 20:30	126.4	↓-5.7
2/20 20:40	120.5	↓-5.9
2/20 20:50	114.4	↓-6.1
2/20 21:00	108.1	↓-6.3
2/20 21:10	101.6	↓-6.5
2/20 21:20	95.0	↓-6.6
2/20 21:30	88.4	↓-6.6
2/20 21:40	81.8	↓-6.6
2/20 21:50	75.1	↓-6.7	最大潮位差
2/20 22:00	68.6	↓-6.5
2/20 22:10	62.2	↓-6.4
2/20 22:20	55.9	↓-6.3
2/20 22:30	49.8	↓-6.1
2/20 22:40	44.0	↓-5.8
2/20 22:50	38.4	↓-5.6
2/20 23:00	33.2	↓-5.2
2/20 23:10	28.3	↓-4.9
2/20 23:20	23.9	↓-4.4
2/20 23:30	19.8	↓-4.1
2/20 23:40	16.2	↓-3.6
2/20 23:50	13.1	↓-3.1