20 (金)	04:05	10:21	15:59	22:39
	144cm	93cm	131cm	60cm
長潮 出 05:46 入 18:59 出 12:04 入 01:59

島山（長崎）2040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	94.6	↑2.9
4/20 00:10	97.6	↑3.0
4/20 00:20	100.7	↑3.1	最大潮位差
4/20 00:30	103.7	↑3.0
4/20 00:40	106.7	↑3.0
4/20 00:50	109.6	↑2.9
4/20 01:00	112.6	↑3.0
4/20 01:10	115.4	↑2.8
4/20 01:20	118.2	↑2.8
4/20 01:30	120.9	↑2.7
4/20 01:40	123.5	↑2.6
4/20 01:50	125.9	↑2.4
4/20 02:00	128.3	↑2.4
4/20 02:10	130.5	↑2.2
4/20 02:20	132.5	↑2.0
4/20 02:30	134.4	↑1.9
4/20 02:40	136.1	↑1.7
4/20 02:50	137.6	↑1.5
4/20 03:00	139.0	↑1.4
4/20 03:10	140.2	↑1.2
4/20 03:20	141.1	↑0.9
4/20 03:30	141.9	↑0.8
4/20 03:40	142.5	↑0.6
4/20 03:50	142.8	↑0.3
4/20 04:00	143.0	↑0.2	満潮
4/20 04:10	143.0	0
4/20 04:20	142.8	↓-0.2
4/20 04:30	142.4	↓-0.4
4/20 04:40	141.8	↓-0.6
4/20 04:50	141.0	↓-0.8
4/20 05:00	140.1	↓-0.9
4/20 05:10	139.0	↓-1.1
4/20 05:20	137.7	↓-1.3
4/20 05:30	136.3	↓-1.4
4/20 05:40	134.8	↓-1.5
4/20 05:50	133.1	↓-1.7
4/20 06:00	131.4	↓-1.7
4/20 06:10	129.5	↓-1.9
4/20 06:20	127.6	↓-1.9
4/20 06:30	125.6	↓-2.0
4/20 06:40	123.6	↓-2.0
4/20 06:50	121.5	↓-2.1
4/20 07:00	119.4	↓-2.1
4/20 07:10	117.2	↓-2.2
4/20 07:20	115.1	↓-2.1
4/20 07:30	113.0	↓-2.1
4/20 07:40	111.0	↓-2.0
4/20 07:50	109.0	↓-2.0
4/20 08:00	107.0	↓-2.0
4/20 08:10	105.2	↓-1.8
4/20 08:20	103.4	↓-1.8
4/20 08:30	101.7	↓-1.7
4/20 08:40	100.1	↓-1.6
4/20 08:50	98.7	↓-1.4
4/20 09:00	97.3	↓-1.4
4/20 09:10	96.2	↓-1.1
4/20 09:20	95.1	↓-1.1
4/20 09:30	94.2	↓-0.9
4/20 09:40	93.5	↓-0.7
4/20 09:50	92.9	↓-0.6
4/20 10:00	92.5	↓-0.4
4/20 10:10	92.3	↓-0.2
4/20 10:20	92.2	↓-0.1	干潮
4/20 10:30	92.3	↑0.1
4/20 10:40	92.5	↑0.2
4/20 10:50	92.9	↑0.4
4/20 11:00	93.5	↑0.6
4/20 11:10	94.2	↑0.7
4/20 11:20	95.1	↑0.9
4/20 11:30	96.1	↑1.0
4/20 11:40	97.2	↑1.1
4/20 11:50	98.4	↑1.2
4/20 12:00	99.8	↑1.4
4/20 12:10	101.3	↑1.5
4/20 12:20	102.8	↑1.5
4/20 12:30	104.4	↑1.6
4/20 12:40	106.1	↑1.7
4/20 12:50	107.8	↑1.7
4/20 13:00	109.6	↑1.8
4/20 13:10	111.3	↑1.7
4/20 13:20	113.1	↑1.8
4/20 13:30	114.9	↑1.8
4/20 13:40	116.6	↑1.7
4/20 13:50	118.3	↑1.7
4/20 14:00	120.0	↑1.7
4/20 14:10	121.5	↑1.5
4/20 14:20	123.0	↑1.5
4/20 14:30	124.4	↑1.4
4/20 14:40	125.7	↑1.3
4/20 14:50	126.9	↑1.2
4/20 15:00	127.9	↑1.0
4/20 15:10	128.8	↑0.9
4/20 15:20	129.5	↑0.7
4/20 15:30	130.1	↑0.6
4/20 15:40	130.5	↑0.4
4/20 15:50	130.7	↑0.2	満潮
4/20 16:00	130.8	↑0.1
4/20 16:10	130.6	↓-0.2
4/20 16:20	130.3	↓-0.3
4/20 16:30	129.8	↓-0.5
4/20 16:40	129.1	↓-0.7
4/20 16:50	128.2	↓-0.9
4/20 17:00	127.1	↓-1.1
4/20 17:10	125.8	↓-1.3
4/20 17:20	124.4	↓-1.4
4/20 17:30	122.8	↓-1.6
4/20 17:40	121.0	↓-1.8
4/20 17:50	119.0	↓-2.0
4/20 18:00	117.0	↓-2.0
4/20 18:10	114.7	↓-2.3
4/20 18:20	112.4	↓-2.3
4/20 18:30	109.9	↓-2.5
4/20 18:40	107.4	↓-2.5
4/20 18:50	104.7	↓-2.7
4/20 19:00	102.0	↓-2.7
4/20 19:10	99.3	↓-2.7
4/20 19:20	96.5	↓-2.8
4/20 19:30	93.7	↓-2.8
4/20 19:40	90.9	↓-2.8
4/20 19:50	88.2	↓-2.7
4/20 20:00	85.4	↓-2.8
4/20 20:10	82.7	↓-2.7
4/20 20:20	80.1	↓-2.6
4/20 20:30	77.6	↓-2.5
4/20 20:40	75.2	↓-2.4
4/20 20:50	72.9	↓-2.3
4/20 21:00	70.7	↓-2.2
4/20 21:10	68.7	↓-2.0
4/20 21:20	66.9	↓-1.8
4/20 21:30	65.3	↓-1.6
4/20 21:40	63.8	↓-1.5
4/20 21:50	62.6	↓-1.2
4/20 22:00	61.6	↓-1.0
4/20 22:10	60.8	↓-0.8
4/20 22:20	60.2	↓-0.6
4/20 22:30	59.9	↓-0.3	干潮
4/20 22:40	59.8	↓-0.1
4/20 22:50	59.9	↑0.1
4/20 23:00	60.4	↑0.5
4/20 23:10	61.0	↑0.6
4/20 23:20	61.9	↑0.9
4/20 23:30	63.1	↑1.2
4/20 23:40	64.5	↑1.4
4/20 23:50	66.1	↑1.6