20 (土)	08:56	02:33	20:52	14:56
	188cm	-3cm	186cm	25cm
大潮 出 07:03 入 18:11 出 17:28 入 06:24 潮干狩り ○ 13:32～16:18

島山（長崎）2027年02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
2/20 00:00	59.0	↓-7.2
2/20 00:10	52.1	↓-6.9
2/20 00:20	45.4	↓-6.7
2/20 00:30	38.9	↓-6.5
2/20 00:40	32.7	↓-6.2
2/20 00:50	26.9	↓-5.8
2/20 01:00	21.6	↓-5.3
2/20 01:10	16.6	↓-5.0
2/20 01:20	12.1	↓-4.5
2/20 01:30	8.1	↓-4.0
2/20 01:40	4.7	↓-3.4
2/20 01:50	1.8	↓-2.9
2/20 02:00	-0.4	↓-2.2
2/20 02:10	-2.1	↓-1.7
2/20 02:20	-3.2	↓-1.1
2/20 02:30	-3.6	↓-0.4	干潮
2/20 02:40	-3.4	↑0.2
2/20 02:50	-2.6	↑0.8
2/20 03:00	-1.1	↑1.5
2/20 03:10	1.0	↑2.1
2/20 03:20	3.7	↑2.7
2/20 03:30	7.0	↑3.3
2/20 03:40	10.8	↑3.8
2/20 03:50	15.2	↑4.4
2/20 04:00	20.2	↑5.0
2/20 04:10	25.6	↑5.4
2/20 04:20	31.5	↑5.9
2/20 04:30	37.7	↑6.2
2/20 04:40	44.4	↑6.7
2/20 04:50	51.3	↑6.9
2/20 05:00	58.6	↑7.3
2/20 05:10	66.0	↑7.4
2/20 05:20	73.7	↑7.7
2/20 05:30	81.5	↑7.8
2/20 05:40	89.3	↑7.8
2/20 05:50	97.2	↑7.9
2/20 06:00	105.0	↑7.8
2/20 06:10	112.7	↑7.7
2/20 06:20	120.3	↑7.6
2/20 06:30	127.7	↑7.4
2/20 06:40	134.9	↑7.2
2/20 06:50	141.7	↑6.8
2/20 07:00	148.3	↑6.6
2/20 07:10	154.4	↑6.1
2/20 07:20	160.1	↑5.7
2/20 07:30	165.4	↑5.3
2/20 07:40	170.1	↑4.7
2/20 07:50	174.4	↑4.3
2/20 08:00	178.0	↑3.6
2/20 08:10	181.1	↑3.1
2/20 08:20	183.6	↑2.5
2/20 08:30	185.5	↑1.9
2/20 08:40	186.7	↑1.2
2/20 08:50	187.3	↑0.6	満潮
2/20 09:00	187.3	0
2/20 09:10	186.7	↓-0.6
2/20 09:20	185.4	↓-1.3
2/20 09:30	183.5	↓-1.9
2/20 09:40	181.0	↓-2.5
2/20 09:50	178.0	↓-3.0
2/20 10:00	174.4	↓-3.6
2/20 10:10	170.2	↓-4.2
2/20 10:20	165.6	↓-4.6
2/20 10:30	160.5	↓-5.1
2/20 10:40	155.1	↓-5.4
2/20 10:50	149.2	↓-5.9
2/20 11:00	143.0	↓-6.2
2/20 11:10	136.5	↓-6.5
2/20 11:20	129.9	↓-6.6
2/20 11:30	123.0	↓-6.9
2/20 11:40	116.0	↓-7.0
2/20 11:50	108.9	↓-7.1
2/20 12:00	101.8	↓-7.1
2/20 12:10	94.7	↓-7.1
2/20 12:20	87.8	↓-6.9
2/20 12:30	80.9	↓-6.9
2/20 12:40	74.3	↓-6.6
2/20 12:50	67.9	↓-6.4
2/20 13:00	61.7	↓-6.2
2/20 13:10	55.9	↓-5.8
2/20 13:20	50.5	↓-5.4
2/20 13:30	45.5	↓-5.0
2/20 13:40	41.0	↓-4.5
2/20 13:50	37.0	↓-4.0
2/20 14:00	33.4	↓-3.6
2/20 14:10	30.5	↓-2.9
2/20 14:20	28.1	↓-2.4
2/20 14:30	26.2	↓-1.9
2/20 14:40	25.0	↓-1.2
2/20 14:50	24.4	↓-0.6	干潮
2/20 15:00	24.4	0
2/20 15:10	25.0	↑0.6
2/20 15:20	26.3	↑1.3
2/20 15:30	28.1	↑1.8
2/20 15:40	30.6	↑2.5
2/20 15:50	33.5	↑2.9
2/20 16:00	37.1	↑3.6
2/20 16:10	41.2	↑4.1
2/20 16:20	45.7	↑4.5
2/20 16:30	50.7	↑5.0
2/20 16:40	56.2	↑5.5
2/20 16:50	62.0	↑5.8
2/20 17:00	68.1	↑6.1
2/20 17:10	74.5	↑6.4
2/20 17:20	81.2	↑6.7
2/20 17:30	88.0	↑6.8
2/20 17:40	95.0	↑7.0
2/20 17:50	102.0	↑7.0
2/20 18:00	109.1	↑7.1
2/20 18:10	116.2	↑7.1
2/20 18:20	123.2	↑7.0
2/20 18:30	130.0	↑6.8
2/20 18:40	136.6	↑6.6
2/20 18:50	143.0	↑6.4
2/20 19:00	149.1	↑6.1
2/20 19:10	154.9	↑5.8
2/20 19:20	160.3	↑5.4
2/20 19:30	165.2	↑4.9
2/20 19:40	169.7	↑4.5
2/20 19:50	173.6	↑3.9
2/20 20:00	177.1	↑3.5
2/20 20:10	179.9	↑2.8
2/20 20:20	182.2	↑2.3
2/20 20:30	183.8	↑1.6
2/20 20:40	184.8	↑1.0
2/20 20:50	185.2	↑0.4	満潮
2/20 21:00	184.9	↓-0.3
2/20 21:10	183.9	↓-1.0
2/20 21:20	182.3	↓-1.6
2/20 21:30	180.1	↓-2.2
2/20 21:40	177.2	↓-2.9
2/20 21:50	173.7	↓-3.5
2/20 22:00	169.6	↓-4.1
2/20 22:10	165.0	↓-4.6
2/20 22:20	159.8	↓-5.2
2/20 22:30	154.1	↓-5.7
2/20 22:40	147.9	↓-6.2
2/20 22:50	141.3	↓-6.6
2/20 23:00	134.4	↓-6.9
2/20 23:10	127.1	↓-7.3
2/20 23:20	119.5	↓-7.6
2/20 23:30	111.6	↓-7.9
2/20 23:40	103.7	↓-7.9
2/20 23:50	95.5	↓-8.2	最大潮位差