31 (金)	09:31	02:37	20:46	15:47
	290cm	42cm	252cm	125cm
中潮 出 07:11 入 17:07 出 04:07 入 14:31

与島（香川）2021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	105.6	↓-8.1
12/31 00:10	97.8	↓-7.8
12/31 00:20	90.4	↓-7.4
12/31 00:30	83.5	↓-6.9
12/31 00:40	77.0	↓-6.5
12/31 00:50	71.1	↓-5.9
12/31 01:00	65.8	↓-5.3
12/31 01:10	61.0	↓-4.8
12/31 01:20	56.7	↓-4.3
12/31 01:30	53.0	↓-3.7
12/31 01:40	49.9	↓-3.1
12/31 01:50	47.2	↓-2.7
12/31 02:00	45.1	↓-2.1
12/31 02:10	43.5	↓-1.6
12/31 02:20	42.4	↓-1.1
12/31 02:30	41.9	↓-0.5	干潮
12/31 02:40	41.8	↓-0.1
12/31 02:50	42.3	↑0.5
12/31 03:00	43.3	↑1.0
12/31 03:10	44.8	↑1.5
12/31 03:20	47.0	↑2.2
12/31 03:30	49.7	↑2.7
12/31 03:40	53.1	↑3.4
12/31 03:50	57.1	↑4.0
12/31 04:00	61.8	↑4.7
12/31 04:10	67.2	↑5.4
12/31 04:20	73.2	↑6.0
12/31 04:30	79.9	↑6.7
12/31 04:40	87.3	↑7.4
12/31 04:50	95.2	↑7.9
12/31 05:00	103.7	↑8.5
12/31 05:10	112.7	↑9.0
12/31 05:20	122.2	↑9.5
12/31 05:30	131.9	↑9.7
12/31 05:40	142.0	↑10.1
12/31 05:50	152.2	↑10.2
12/31 06:00	162.4	↑10.2
12/31 06:10	172.7	↑10.3	最大潮位差
12/31 06:20	182.8	↑10.1
12/31 06:30	192.8	↑10.0
12/31 06:40	202.5	↑9.7
12/31 06:50	211.8	↑9.3
12/31 07:00	220.8	↑9.0
12/31 07:10	229.3	↑8.5
12/31 07:20	237.3	↑8.0
12/31 07:30	244.8	↑7.5
12/31 07:40	251.8	↑7.0
12/31 07:50	258.1	↑6.3
12/31 08:00	264.0	↑5.9
12/31 08:10	269.2	↑5.2
12/31 08:20	273.9	↑4.7
12/31 08:30	277.9	↑4.0
12/31 08:40	281.4	↑3.5
12/31 08:50	284.3	↑2.9
12/31 09:00	286.5	↑2.2
12/31 09:10	288.2	↑1.7
12/31 09:20	289.1	↑0.9
12/31 09:30	289.5	↑0.4	満潮
12/31 09:40	289.1	↓-0.4
12/31 09:50	288.1	↓-1.0
12/31 10:00	286.4	↓-1.7
12/31 10:10	284.0	↓-2.4
12/31 10:20	281.0	↓-3.0
12/31 10:30	277.2	↓-3.8
12/31 10:40	272.9	↓-4.3
12/31 10:50	268.0	↓-4.9
12/31 11:00	262.5	↓-5.5
12/31 11:10	256.6	↓-5.9
12/31 11:20	250.2	↓-6.4
12/31 11:30	243.5	↓-6.7
12/31 11:40	236.5	↓-7.0
12/31 11:50	229.4	↓-7.1
12/31 12:00	222.1	↓-7.3
12/31 12:10	214.8	↓-7.3
12/31 12:20	207.6	↓-7.2
12/31 12:30	200.5	↓-7.1
12/31 12:40	193.6	↓-6.9
12/31 12:50	186.9	↓-6.7
12/31 13:00	180.5	↓-6.4
12/31 13:10	174.4	↓-6.1
12/31 13:20	168.6	↓-5.8
12/31 13:30	163.2	↓-5.4
12/31 13:40	158.1	↓-5.1
12/31 13:50	153.4	↓-4.7
12/31 14:00	149.0	↓-4.4
12/31 14:10	145.0	↓-4.0
12/31 14:20	141.3	↓-3.7
12/31 14:30	137.9	↓-3.4
12/31 14:40	134.9	↓-3.0
12/31 14:50	132.3	↓-2.6
12/31 15:00	130.0	↓-2.3
12/31 15:10	128.0	↓-2.0
12/31 15:20	126.5	↓-1.5
12/31 15:30	125.5	↓-1.0
12/31 15:40	124.9	↓-0.6	干潮
12/31 15:50	124.9	0
12/31 16:00	125.4	↑0.5
12/31 16:10	126.5	↑1.1
12/31 16:20	128.3	↑1.8
12/31 16:30	130.7	↑2.4
12/31 16:40	133.7	↑3.0
12/31 16:50	137.4	↑3.7
12/31 17:00	141.7	↑4.3
12/31 17:10	146.6	↑4.9
12/31 17:20	152.0	↑5.4
12/31 17:30	157.9	↑5.9
12/31 17:40	164.2	↑6.3
12/31 17:50	170.9	↑6.7
12/31 18:00	177.7	↑6.8
12/31 18:10	184.7	↑7.0
12/31 18:20	191.8	↑7.1
12/31 18:30	198.7	↑6.9
12/31 18:40	205.6	↑6.9
12/31 18:50	212.1	↑6.5
12/31 19:00	218.3	↑6.2
12/31 19:10	224.2	↑5.9
12/31 19:20	229.5	↑5.3
12/31 19:30	234.4	↑4.9
12/31 19:40	238.6	↑4.2
12/31 19:50	242.4	↑3.8
12/31 20:00	245.5	↑3.1
12/31 20:10	248.0	↑2.5
12/31 20:20	249.8	↑1.8
12/31 20:30	251.1	↑1.3
12/31 20:40	251.7	↑0.6	満潮
12/31 20:50	251.8	↑0.1
12/31 21:00	251.2	↓-0.6
12/31 21:10	250.0	↓-1.2
12/31 21:20	248.1	↓-1.9
12/31 21:30	245.7	↓-2.4
12/31 21:40	242.6	↓-3.1
12/31 21:50	238.9	↓-3.7
12/31 22:00	234.6	↓-4.3
12/31 22:10	229.6	↓-5.0
12/31 22:20	224.0	↓-5.6
12/31 22:30	217.8	↓-6.2
12/31 22:40	211.0	↓-6.8
12/31 22:50	203.6	↓-7.4
12/31 23:00	195.7	↓-7.9
12/31 23:10	187.3	↓-8.4
12/31 23:20	178.5	↓-8.8
12/31 23:30	169.3	↓-9.2
12/31 23:40	159.9	↓-9.4
12/31 23:50	150.3	↓-9.6