20 (月)	10:23	04:31	23:11	16:45
	191cm	40cm	189cm	3cm
中潮 出 05:46 入 18:59 出 07:19 入 22:33 潮干狩り ◎ 14:46～18:45

島山（長崎）2026年04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
4/20 00:00	176.1	↓-4.7
4/20 00:10	170.9	↓-5.2
4/20 00:20	165.3	↓-5.6
4/20 00:30	159.3	↓-6.0
4/20 00:40	153.0	↓-6.3
4/20 00:50	146.5	↓-6.5
4/20 01:00	139.8	↓-6.7
4/20 01:10	132.9	↓-6.9
4/20 01:20	126.0	↓-6.9
4/20 01:30	118.9	↓-7.1
4/20 01:40	111.9	↓-7.0
4/20 01:50	105.0	↓-6.9
4/20 02:00	98.2	↓-6.8
4/20 02:10	91.5	↓-6.7
4/20 02:20	85.1	↓-6.4
4/20 02:30	78.9	↓-6.2
4/20 02:40	73.0	↓-5.9
4/20 02:50	67.5	↓-5.5
4/20 03:00	62.4	↓-5.1
4/20 03:10	57.8	↓-4.6
4/20 03:20	53.6	↓-4.2
4/20 03:30	49.9	↓-3.7
4/20 03:40	46.7	↓-3.2
4/20 03:50	44.1	↓-2.6
4/20 04:00	42.1	↓-2.0
4/20 04:10	40.6	↓-1.5
4/20 04:20	39.7	↓-0.9
4/20 04:30	39.5	↓-0.2	干潮
4/20 04:40	39.8	↑0.3
4/20 04:50	40.7	↑0.9
4/20 05:00	42.2	↑1.5
4/20 05:10	44.3	↑2.1
4/20 05:20	46.9	↑2.6
4/20 05:30	50.1	↑3.2
4/20 05:40	53.8	↑3.7
4/20 05:50	58.0	↑4.2
4/20 06:00	62.6	↑4.6
4/20 06:10	67.6	↑5.0
4/20 06:20	73.0	↑5.4
4/20 06:30	78.7	↑5.7
4/20 06:40	84.7	↑6.0
4/20 06:50	91.0	↑6.3
4/20 07:00	97.4	↑6.4
4/20 07:10	104.0	↑6.6
4/20 07:20	110.6	↑6.6
4/20 07:30	117.3	↑6.7
4/20 07:40	124.0	↑6.7
4/20 07:50	130.6	↑6.6
4/20 08:00	137.0	↑6.4
4/20 08:10	143.4	↑6.4
4/20 08:20	149.4	↑6.0
4/20 08:30	155.3	↑5.9
4/20 08:40	160.8	↑5.5
4/20 08:50	165.9	↑5.1
4/20 09:00	170.6	↑4.7
4/20 09:10	174.9	↑4.3
4/20 09:20	178.8	↑3.9
4/20 09:30	182.1	↑3.3
4/20 09:40	184.9	↑2.8
4/20 09:50	187.1	↑2.2
4/20 10:00	188.7	↑1.6
4/20 10:10	189.8	↑1.1
4/20 10:20	190.2	↑0.4	満潮
4/20 10:30	190.1	↓-0.1
4/20 10:40	189.3	↓-0.8
4/20 10:50	187.9	↓-1.4
4/20 11:00	185.9	↓-2.0
4/20 11:10	183.3	↓-2.6
4/20 11:20	180.1	↓-3.2
4/20 11:30	176.4	↓-3.7
4/20 11:40	172.1	↓-4.3
4/20 11:50	167.3	↓-4.8
4/20 12:00	162.0	↓-5.3
4/20 12:10	156.3	↓-5.7
4/20 12:20	150.2	↓-6.1
4/20 12:30	143.7	↓-6.5
4/20 12:40	136.9	↓-6.8
4/20 12:50	129.8	↓-7.1
4/20 13:00	122.5	↓-7.3
4/20 13:10	115.0	↓-7.5
4/20 13:20	107.4	↓-7.6
4/20 13:30	99.7	↓-7.7	最大潮位差
4/20 13:40	92.0	↓-7.7	最大潮位差
4/20 13:50	84.3	↓-7.7	最大潮位差
4/20 14:00	76.7	↓-7.6
4/20 14:10	69.2	↓-7.5
4/20 14:20	61.9	↓-7.3
4/20 14:30	54.8	↓-7.1
4/20 14:40	48.1	↓-6.7
4/20 14:50	41.6	↓-6.5
4/20 15:00	35.6	↓-6.0
4/20 15:10	29.9	↓-5.7
4/20 15:20	24.7	↓-5.2
4/20 15:30	20.0	↓-4.7
4/20 15:40	15.8	↓-4.2
4/20 15:50	12.2	↓-3.6
4/20 16:00	9.1	↓-3.1
4/20 16:10	6.7	↓-2.4
4/20 16:20	4.8	↓-1.9
4/20 16:30	3.6	↓-1.2
4/20 16:40	3.0	↓-0.6	干潮
4/20 16:50	3.0	0
4/20 17:00	3.7	↑0.7
4/20 17:10	5.0	↑1.3
4/20 17:20	6.9	↑1.9
4/20 17:30	9.4	↑2.5
4/20 17:40	12.5	↑3.1
4/20 17:50	16.2	↑3.7
4/20 18:00	20.4	↑4.2
4/20 18:10	25.1	↑4.7
4/20 18:20	30.3	↑5.2
4/20 18:30	35.9	↑5.6
4/20 18:40	42.0	↑6.1
4/20 18:50	48.4	↑6.4
4/20 19:00	55.1	↑6.7
4/20 19:10	62.0	↑6.9
4/20 19:20	69.2	↑7.2
4/20 19:30	76.6	↑7.4
4/20 19:40	84.1	↑7.5
4/20 19:50	91.6	↑7.5
4/20 20:00	99.2	↑7.6
4/20 20:10	106.7	↑7.5
4/20 20:20	114.2	↑7.5
4/20 20:30	121.5	↑7.3
4/20 20:40	128.6	↑7.1
4/20 20:50	135.6	↑7.0
4/20 21:00	142.2	↑6.6
4/20 21:10	148.5	↑6.3
4/20 21:20	154.5	↑6.0
4/20 21:30	160.0	↑5.5
4/20 21:40	165.2	↑5.2
4/20 21:50	169.9	↑4.7
4/20 22:00	174.1	↑4.2
4/20 22:10	177.7	↑3.6
4/20 22:20	180.9	↑3.2
4/20 22:30	183.5	↑2.6
4/20 22:40	185.5	↑2.0
4/20 22:50	187.0	↑1.5
4/20 23:00	187.8	↑0.8
4/20 23:10	188.2	↑0.4	満潮
4/20 23:20	187.9	↓-0.3
4/20 23:30	187.1	↓-0.8
4/20 23:40	185.7	↓-1.4
4/20 23:50	183.8	↓-1.9