31 (木)	12:35	06:02	23:59	18:58
	345cm	10cm	280cm	123cm
大潮 出 07:12 入 17:07 出 18:05 入 08:03

粟島（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	270.8	↓-2.4
12/31 00:10	267.4	↓-3.4
12/31 00:20	263.2	↓-4.2
12/31 00:30	258.1	↓-5.1
12/31 00:40	252.1	↓-6.0
12/31 00:50	245.4	↓-6.7
12/31 01:00	237.8	↓-7.6
12/31 01:10	229.5	↓-8.3
12/31 01:20	220.6	↓-8.9
12/31 01:30	211.1	↓-9.5
12/31 01:40	201.1	↓-10.0
12/31 01:50	190.7	↓-10.4
12/31 02:00	180.0	↓-10.7
12/31 02:10	169.1	↓-10.9
12/31 02:20	158.1	↓-11.0
12/31 02:30	147.1	↓-11.0
12/31 02:40	136.1	↓-11.0
12/31 02:50	125.4	↓-10.7
12/31 03:00	114.9	↓-10.5
12/31 03:10	104.7	↓-10.2
12/31 03:20	94.9	↓-9.8
12/31 03:30	85.5	↓-9.4
12/31 03:40	76.6	↓-8.9
12/31 03:50	68.1	↓-8.5
12/31 04:00	60.2	↓-7.9
12/31 04:10	52.7	↓-7.5
12/31 04:20	45.8	↓-6.9
12/31 04:30	39.4	↓-6.4
12/31 04:40	33.6	↓-5.8
12/31 04:50	28.3	↓-5.3
12/31 05:00	23.6	↓-4.7
12/31 05:10	19.5	↓-4.1
12/31 05:20	16.0	↓-3.5
12/31 05:30	13.2	↓-2.8
12/31 05:40	11.1	↓-2.1
12/31 05:50	9.8	↓-1.3
12/31 06:00	9.2	↓-0.6	干潮
12/31 06:10	9.6	↑0.4
12/31 06:20	10.8	↑1.2
12/31 06:30	13.0	↑2.2
12/31 06:40	16.1	↑3.1
12/31 06:50	20.3	↑4.2
12/31 07:00	25.5	↑5.2
12/31 07:10	31.7	↑6.2
12/31 07:20	39.0	↑7.3
12/31 07:30	47.2	↑8.2
12/31 07:40	56.5	↑9.3
12/31 07:50	66.6	↑10.1
12/31 08:00	77.5	↑10.9
12/31 08:10	89.2	↑11.7
12/31 08:20	101.5	↑12.3
12/31 08:30	114.4	↑12.9
12/31 08:40	127.7	↑13.3
12/31 08:50	141.3	↑13.6
12/31 09:00	155.1	↑13.8
12/31 09:10	169.0	↑13.9	最大潮位差
12/31 09:20	182.9	↑13.9	最大潮位差
12/31 09:30	196.7	↑13.8
12/31 09:40	210.2	↑13.5
12/31 09:50	223.4	↑13.2
12/31 10:00	236.3	↑12.9
12/31 10:10	248.6	↑12.3
12/31 10:20	260.4	↑11.8
12/31 10:30	271.7	↑11.3
12/31 10:40	282.2	↑10.5
12/31 10:50	292.1	↑9.9
12/31 11:00	301.3	↑9.2
12/31 11:10	309.6	↑8.3
12/31 11:20	317.1	↑7.5
12/31 11:30	323.8	↑6.7
12/31 11:40	329.5	↑5.7
12/31 11:50	334.4	↑4.9
12/31 12:00	338.3	↑3.9
12/31 12:10	341.2	↑2.9
12/31 12:20	343.1	↑1.9
12/31 12:30	344.0	↑0.9	満潮
12/31 12:40	343.9	↓-0.1
12/31 12:50	342.8	↓-1.1
12/31 13:00	340.7	↓-2.1
12/31 13:10	337.7	↓-3.0
12/31 13:20	333.7	↓-4.0
12/31 13:30	328.9	↓-4.8
12/31 13:40	323.3	↓-5.6
12/31 13:50	316.9	↓-6.4
12/31 14:00	309.9	↓-7.0
12/31 14:10	302.3	↓-7.6
12/31 14:20	294.2	↓-8.1
12/31 14:30	285.8	↓-8.4
12/31 14:40	277.1	↓-8.7
12/31 14:50	268.2	↓-8.9
12/31 15:00	259.2	↓-9.0
12/31 15:10	250.2	↓-9.0
12/31 15:20	241.2	↓-9.0
12/31 15:30	232.4	↓-8.8
12/31 15:40	223.8	↓-8.6
12/31 15:50	215.3	↓-8.5
12/31 16:00	207.2	↓-8.1
12/31 16:10	199.3	↓-7.9
12/31 16:20	191.7	↓-7.6
12/31 16:30	184.4	↓-7.3
12/31 16:40	177.4	↓-7.0
12/31 16:50	170.8	↓-6.6
12/31 17:00	164.5	↓-6.3
12/31 17:10	158.5	↓-6.0
12/31 17:20	152.8	↓-5.7
12/31 17:30	147.5	↓-5.3
12/31 17:40	142.7	↓-4.8
12/31 17:50	138.2	↓-4.5
12/31 18:00	134.2	↓-4.0
12/31 18:10	130.7	↓-3.5
12/31 18:20	127.8	↓-2.9
12/31 18:30	125.5	↓-2.3
12/31 18:40	123.8	↓-1.7
12/31 18:50	122.9	↓-0.9	干潮
12/31 19:00	122.7	↓-0.2
12/31 19:10	123.3	↑0.6
12/31 19:20	124.7	↑1.4
12/31 19:30	127.0	↑2.3
12/31 19:40	130.1	↑3.1
12/31 19:50	134.0	↑3.9
12/31 20:00	138.6	↑4.6
12/31 20:10	144.1	↑5.5
12/31 20:20	150.2	↑6.1
12/31 20:30	156.9	↑6.7
12/31 20:40	164.2	↑7.3
12/31 20:50	171.9	↑7.7
12/31 21:00	179.9	↑8.0
12/31 21:10	188.1	↑8.2
12/31 21:20	196.5	↑8.4
12/31 21:30	204.9	↑8.4
12/31 21:40	213.1	↑8.2
12/31 21:50	221.2	↑8.1
12/31 22:00	229.1	↑7.9
12/31 22:10	236.5	↑7.4
12/31 22:20	243.5	↑7.0
12/31 22:30	250.0	↑6.5
12/31 22:40	256.0	↑6.0
12/31 22:50	261.3	↑5.3
12/31 23:00	266.0	↑4.7
12/31 23:10	270.1	↑4.1
12/31 23:20	273.4	↑3.3
12/31 23:30	275.9	↑2.5
12/31 23:40	277.8	↑1.9
12/31 23:50	278.8	↑1.0	満潮