20 (水)	11:38	05:11	23:32	17:40
	200cm	7cm	184cm	47cm
中潮 出 07:24 入 17:17 出 10:16 入 21:26

大山浦（長崎）2028年12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
12/20 00:00	175.5	↓-3.8
12/20 00:10	171.3	↓-4.2
12/20 00:20	166.5	↓-4.8
12/20 00:30	161.2	↓-5.3
12/20 00:40	155.5	↓-5.7
12/20 00:50	149.5	↓-6.0
12/20 01:00	143.0	↓-6.5
12/20 01:10	136.3	↓-6.7
12/20 01:20	129.3	↓-7.0
12/20 01:30	122.0	↓-7.3
12/20 01:40	114.6	↓-7.4
12/20 01:50	107.1	↓-7.5
12/20 02:00	99.5	↓-7.6
12/20 02:10	91.9	↓-7.6
12/20 02:20	84.4	↓-7.5
12/20 02:30	76.9	↓-7.5
12/20 02:40	69.6	↓-7.3
12/20 02:50	62.5	↓-7.1
12/20 03:00	55.6	↓-6.9
12/20 03:10	49.0	↓-6.6
12/20 03:20	42.8	↓-6.2
12/20 03:30	36.9	↓-5.9
12/20 03:40	31.5	↓-5.4
12/20 03:50	26.5	↓-5.0
12/20 04:00	22.0	↓-4.5
12/20 04:10	18.0	↓-4.0
12/20 04:20	14.7	↓-3.3
12/20 04:30	11.8	↓-2.9
12/20 04:40	9.6	↓-2.2
12/20 04:50	8.0	↓-1.6
12/20 05:00	7.1	↓-0.9
12/20 05:10	6.8	↓-0.3	干潮
12/20 05:20	7.1	↑0.3
12/20 05:30	8.1	↑1.0
12/20 05:40	9.7	↑1.6
12/20 05:50	11.9	↑2.2
12/20 06:00	14.7	↑2.8
12/20 06:10	18.1	↑3.4
12/20 06:20	22.1	↑4.0
12/20 06:30	26.6	↑4.5
12/20 06:40	31.7	↑5.1
12/20 06:50	37.2	↑5.5
12/20 07:00	43.2	↑6.0
12/20 07:10	49.5	↑6.3
12/20 07:20	56.2	↑6.7
12/20 07:30	63.2	↑7.0
12/20 07:40	70.5	↑7.3
12/20 07:50	78.0	↑7.5
12/20 08:00	85.7	↑7.7
12/20 08:10	93.5	↑7.8
12/20 08:20	101.3	↑7.8
12/20 08:30	109.2	↑7.9	最大潮位差
12/20 08:40	117.0	↑7.8
12/20 08:50	124.7	↑7.7
12/20 09:00	132.2	↑7.5
12/20 09:10	139.6	↑7.4
12/20 09:20	146.7	↑7.1
12/20 09:30	153.5	↑6.8
12/20 09:40	160.0	↑6.5
12/20 09:50	166.1	↑6.1
12/20 10:00	171.7	↑5.6
12/20 10:10	177.0	↑5.3
12/20 10:20	181.7	↑4.7
12/20 10:30	185.9	↑4.2
12/20 10:40	189.6	↑3.7
12/20 10:50	192.7	↑3.1
12/20 11:00	195.2	↑2.5
12/20 11:10	197.2	↑2.0
12/20 11:20	198.5	↑1.3
12/20 11:30	199.2	↑0.7	満潮
12/20 11:40	199.4	↑0.2
12/20 11:50	198.9	↓-0.5
12/20 12:00	197.8	↓-1.1
12/20 12:10	196.1	↓-1.7
12/20 12:20	193.9	↓-2.2
12/20 12:30	191.1	↓-2.8
12/20 12:40	187.8	↓-3.3
12/20 12:50	184.0	↓-3.8
12/20 13:00	179.7	↓-4.3
12/20 13:10	175.0	↓-4.7
12/20 13:20	169.9	↓-5.1
12/20 13:30	164.5	↓-5.4
12/20 13:40	158.7	↓-5.8
12/20 13:50	152.7	↓-6.0
12/20 14:00	146.5	↓-6.2
12/20 14:10	140.1	↓-6.4
12/20 14:20	133.6	↓-6.5
12/20 14:30	127.0	↓-6.6
12/20 14:40	120.3	↓-6.7
12/20 14:50	113.7	↓-6.6
12/20 15:00	107.2	↓-6.5
12/20 15:10	100.8	↓-6.4
12/20 15:20	94.6	↓-6.2
12/20 15:30	88.6	↓-6.0
12/20 15:40	82.9	↓-5.7
12/20 15:50	77.4	↓-5.5
12/20 16:00	72.3	↓-5.1
12/20 16:10	67.6	↓-4.7
12/20 16:20	63.3	↓-4.3
12/20 16:30	59.4	↓-3.9
12/20 16:40	56.0	↓-3.4
12/20 16:50	53.1	↓-2.9
12/20 17:00	50.7	↓-2.4
12/20 17:10	48.8	↓-1.9
12/20 17:20	47.5	↓-1.3
12/20 17:30	46.7	↓-0.8	干潮
12/20 17:40	46.5	↓-0.2	干潮
12/20 17:50	46.8	↑0.3
12/20 18:00	47.7	↑0.9
12/20 18:10	49.1	↑1.4
12/20 18:20	51.1	↑2.0
12/20 18:30	53.5	↑2.4
12/20 18:40	56.5	↑3.0
12/20 18:50	59.9	↑3.4
12/20 19:00	63.7	↑3.8
12/20 19:10	67.9	↑4.2
12/20 19:20	72.5	↑4.6
12/20 19:30	77.5	↑5.0
12/20 19:40	82.7	↑5.2
12/20 19:50	88.2	↑5.5
12/20 20:00	93.9	↑5.7
12/20 20:10	99.8	↑5.9
12/20 20:20	105.8	↑6.0
12/20 20:30	111.9	↑6.1
12/20 20:40	118.0	↑6.1
12/20 20:50	124.0	↑6.0
12/20 21:00	130.0	↑6.0
12/20 21:10	135.9	↑5.9
12/20 21:20	141.6	↑5.7
12/20 21:30	147.1	↑5.5
12/20 21:40	152.4	↑5.3
12/20 21:50	157.3	↑4.9
12/20 22:00	162.0	↑4.7
12/20 22:10	166.2	↑4.2
12/20 22:20	170.1	↑3.9
12/20 22:30	173.5	↑3.4
12/20 22:40	176.5	↑3.0
12/20 22:50	178.9	↑2.4
12/20 23:00	180.9	↑2.0
12/20 23:10	182.3	↑1.4
12/20 23:20	183.2	↑0.9
12/20 23:30	183.5	↑0.3	満潮
12/20 23:40	183.3	↓-0.2
12/20 23:50	182.6	↓-0.7