31 (木)	12:30	05:43	23:30	18:51
	305cm	23cm	248cm	120cm
大潮 出 07:11 入 17:07 出 18:04 入 08:03

与島（香川）2020年12月31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
12/31 00:00	232.6	↓-3.8
12/31 00:10	228.2	↓-4.4
12/31 00:20	223.2	↓-5.0
12/31 00:30	217.5	↓-5.7
12/31 00:40	211.2	↓-6.3
12/31 00:50	204.3	↓-6.9
12/31 01:00	196.8	↓-7.5
12/31 01:10	188.8	↓-8.0
12/31 01:20	180.3	↓-8.5
12/31 01:30	171.3	↓-9.0
12/31 01:40	162.1	↓-9.2
12/31 01:50	152.5	↓-9.6
12/31 02:00	142.9	↓-9.6
12/31 02:10	133.1	↓-9.8
12/31 02:20	123.5	↓-9.6
12/31 02:30	114.0	↓-9.5
12/31 02:40	104.7	↓-9.3
12/31 02:50	95.8	↓-8.9
12/31 03:00	87.3	↓-8.5
12/31 03:10	79.2	↓-8.1
12/31 03:20	71.7	↓-7.5
12/31 03:30	64.8	↓-6.9
12/31 03:40	58.4	↓-6.4
12/31 03:50	52.6	↓-5.8
12/31 04:00	47.3	↓-5.3
12/31 04:10	42.7	↓-4.6
12/31 04:20	38.5	↓-4.2
12/31 04:30	34.9	↓-3.6
12/31 04:40	31.7	↓-3.2
12/31 04:50	29.0	↓-2.7
12/31 05:00	26.8	↓-2.2
12/31 05:10	25.0	↓-1.8
12/31 05:20	23.6	↓-1.4
12/31 05:30	22.7	↓-0.9
12/31 05:40	22.4	↓-0.3	干潮
12/31 05:50	22.5	↑0.1
12/31 06:00	23.3	↑0.8
12/31 06:10	24.7	↑1.4
12/31 06:20	26.8	↑2.1
12/31 06:30	29.7	↑2.9
12/31 06:40	33.4	↑3.7
12/31 06:50	37.9	↑4.5
12/31 07:00	43.3	↑5.4
12/31 07:10	49.6	↑6.3
12/31 07:20	56.8	↑7.2
12/31 07:30	64.9	↑8.1
12/31 07:40	73.8	↑8.9
12/31 07:50	83.4	↑9.6
12/31 08:00	93.8	↑10.4
12/31 08:10	104.7	↑10.9
12/31 08:20	116.0	↑11.3
12/31 08:30	127.8	↑11.8
12/31 08:40	139.7	↑11.9
12/31 08:50	151.8	↑12.1	最大潮位差
12/31 09:00	163.9	↑12.1	最大潮位差
12/31 09:10	175.8	↑11.9
12/31 09:20	187.5	↑11.7
12/31 09:30	198.8	↑11.3
12/31 09:40	209.8	↑11.0
12/31 09:50	220.2	↑10.4
12/31 10:00	230.1	↑9.9
12/31 10:10	239.5	↑9.4
12/31 10:20	248.2	↑8.7
12/31 10:30	256.3	↑8.1
12/31 10:40	263.8	↑7.5
12/31 10:50	270.7	↑6.9
12/31 11:00	277.0	↑6.3
12/31 11:10	282.7	↑5.7
12/31 11:20	287.7	↑5.0
12/31 11:30	292.1	↑4.4
12/31 11:40	295.9	↑3.8
12/31 11:50	299.0	↑3.1
12/31 12:00	301.4	↑2.4
12/31 12:10	303.2	↑1.8
12/31 12:20	304.2	↑1.0	満潮
12/31 12:30	304.6	↑0.4	満潮
12/31 12:40	304.1	↓-0.5
12/31 12:50	302.9	↓-1.2
12/31 13:00	300.8	↓-2.1
12/31 13:10	298.0	↓-2.8
12/31 13:20	294.5	↓-3.5
12/31 13:30	290.1	↓-4.4
12/31 13:40	285.1	↓-5.0
12/31 13:50	279.4	↓-5.7
12/31 14:00	273.2	↓-6.2
12/31 14:10	266.4	↓-6.8
12/31 14:20	259.2	↓-7.2
12/31 14:30	251.7	↓-7.5
12/31 14:40	244.0	↓-7.7
12/31 14:50	236.1	↓-7.9
12/31 15:00	228.2	↓-7.9
12/31 15:10	220.4	↓-7.8
12/31 15:20	212.7	↓-7.7
12/31 15:30	205.2	↓-7.5
12/31 15:40	197.9	↓-7.3
12/31 15:50	190.9	↓-7.0
12/31 16:00	184.2	↓-6.7
12/31 16:10	177.9	↓-6.3
12/31 16:20	171.8	↓-6.1
12/31 16:30	166.1	↓-5.7
12/31 16:40	160.7	↓-5.4
12/31 16:50	155.5	↓-5.2
12/31 17:00	150.7	↓-4.8
12/31 17:10	146.1	↓-4.6
12/31 17:20	141.7	↓-4.4
12/31 17:30	137.7	↓-4.0
12/31 17:40	133.9	↓-3.8
12/31 17:50	130.5	↓-3.4
12/31 18:00	127.4	↓-3.1
12/31 18:10	124.7	↓-2.7
12/31 18:20	122.5	↓-2.2
12/31 18:30	120.9	↓-1.6
12/31 18:40	119.8	↓-1.1
12/31 18:50	119.5	↓-0.3	干潮
12/31 19:00	119.8	↑0.3
12/31 19:10	120.9	↑1.1
12/31 19:20	122.8	↑1.9
12/31 19:30	125.5	↑2.7
12/31 19:40	129.0	↑3.5
12/31 19:50	133.3	↑4.3
12/31 20:00	138.3	↑5.0
12/31 20:10	144.1	↑5.8
12/31 20:20	150.4	↑6.3
12/31 20:30	157.2	↑6.8
12/31 20:40	164.4	↑7.2
12/31 20:50	171.9	↑7.5
12/31 21:00	179.6	↑7.7
12/31 21:10	187.2	↑7.6
12/31 21:20	194.8	↑7.6
12/31 21:30	202.1	↑7.3
12/31 21:40	209.1	↑7.0
12/31 21:50	215.7	↑6.6
12/31 22:00	221.8	↑6.1
12/31 22:10	227.3	↑5.5
12/31 22:20	232.1	↑4.8
12/31 22:30	236.4	↑4.3
12/31 22:40	239.9	↑3.5
12/31 22:50	242.8	↑2.9
12/31 23:00	245.1	↑2.3
12/31 23:10	246.6	↑1.5
12/31 23:20	247.5	↑0.9	満潮
12/31 23:30	247.7	↑0.2	満潮
12/31 23:40	247.3	↓-0.4
12/31 23:50	246.3	↓-1.0