20 (土)	10:56	04:55	23:39	17:20
	124cm	25cm	113cm	10cm
中潮 出 05:45 入 18:59 出 23:05 入 07:55

大河内湾（長崎）2041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	115.6	↓-2.1
4/20 00:10	113.2	↓-2.4
4/20 00:20	110.4	↓-2.8
4/20 00:30	107.4	↓-3.0
4/20 00:40	104.1	↓-3.3
4/20 00:50	100.6	↓-3.5
4/20 01:00	96.8	↓-3.8
4/20 01:10	92.9	↓-3.9
4/20 01:20	88.9	↓-4.0
4/20 01:30	84.7	↓-4.2
4/20 01:40	80.4	↓-4.3
4/20 01:50	76.1	↓-4.3
4/20 02:00	71.8	↓-4.3
4/20 02:10	67.5	↓-4.3
4/20 02:20	63.2	↓-4.3
4/20 02:30	59.1	↓-4.1
4/20 02:40	55.0	↓-4.1
4/20 02:50	51.1	↓-3.9
4/20 03:00	47.4	↓-3.7
4/20 03:10	43.9	↓-3.5
4/20 03:20	40.6	↓-3.3
4/20 03:30	37.5	↓-3.1
4/20 03:40	34.8	↓-2.7
4/20 03:50	32.3	↓-2.5
4/20 04:00	30.2	↓-2.1
4/20 04:10	28.4	↓-1.8
4/20 04:20	27.0	↓-1.4
4/20 04:30	25.9	↓-1.1
4/20 04:40	25.2	↓-0.7
4/20 04:50	24.8	↓-0.4	干潮
4/20 05:00	24.8	0
4/20 05:10	25.2	↑0.4
4/20 05:20	26.0	↑0.8
4/20 05:30	27.1	↑1.1
4/20 05:40	28.6	↑1.5
4/20 05:50	30.4	↑1.8
4/20 06:00	32.6	↑2.2
4/20 06:10	35.1	↑2.5
4/20 06:20	37.9	↑2.8
4/20 06:30	40.9	↑3.0
4/20 06:40	44.2	↑3.3
4/20 06:50	47.7	↑3.5
4/20 07:00	51.4	↑3.7
4/20 07:10	55.3	↑3.9
4/20 07:20	59.3	↑4.0
4/20 07:30	63.5	↑4.2
4/20 07:40	67.7	↑4.2
4/20 07:50	72.0	↑4.3
4/20 08:00	76.3	↑4.3
4/20 08:10	80.5	↑4.2
4/20 08:20	84.7	↑4.2
4/20 08:30	88.9	↑4.2
4/20 08:40	92.9	↑4.0
4/20 08:50	96.8	↑3.9
4/20 09:00	100.5	↑3.7
4/20 09:10	104.0	↑3.5
4/20 09:20	107.3	↑3.3
4/20 09:30	110.3	↑3.0
4/20 09:40	113.1	↑2.8
4/20 09:50	115.5	↑2.4
4/20 10:00	117.7	↑2.2
4/20 10:10	119.5	↑1.8
4/20 10:20	121.0	↑1.5
4/20 10:30	122.1	↑1.1
4/20 10:40	122.8	↑0.7
4/20 10:50	123.2	↑0.4	満潮
4/20 11:00	123.2	0
4/20 11:10	122.8	↓-0.4
4/20 11:20	122.0	↓-0.8
4/20 11:30	120.9	↓-1.1
4/20 11:40	119.4	↓-1.5
4/20 11:50	117.5	↓-1.9
4/20 12:00	115.3	↓-2.2
4/20 12:10	112.8	↓-2.5
4/20 12:20	109.9	↓-2.9
4/20 12:30	106.8	↓-3.1
4/20 12:40	103.3	↓-3.5
4/20 12:50	99.7	↓-3.6
4/20 13:00	95.8	↓-3.9
4/20 13:10	91.7	↓-4.1
4/20 13:20	87.4	↓-4.3
4/20 13:30	83.0	↓-4.4
4/20 13:40	78.5	↓-4.5
4/20 13:50	73.9	↓-4.6
4/20 14:00	69.2	↓-4.7	最大潮位差
4/20 14:10	64.5	↓-4.7	最大潮位差
4/20 14:20	59.9	↓-4.6
4/20 14:30	55.3	↓-4.6
4/20 14:40	50.7	↓-4.6
4/20 14:50	46.3	↓-4.4
4/20 15:00	42.0	↓-4.3
4/20 15:10	37.9	↓-4.1
4/20 15:20	33.9	↓-4.0
4/20 15:30	30.2	↓-3.7
4/20 15:40	26.7	↓-3.5
4/20 15:50	23.5	↓-3.2
4/20 16:00	20.6	↓-2.9
4/20 16:10	18.0	↓-2.6
4/20 16:20	15.7	↓-2.3
4/20 16:30	13.8	↓-1.9
4/20 16:40	12.2	↓-1.6
4/20 16:50	10.9	↓-1.3
4/20 17:00	10.1	↓-0.8
4/20 17:10	9.5	↓-0.6	干潮
4/20 17:20	9.4	↓-0.1	干潮
4/20 17:30	9.7	↑0.3
4/20 17:40	10.3	↑0.6
4/20 17:50	11.2	↑0.9
4/20 18:00	12.5	↑1.3
4/20 18:10	14.2	↑1.7
4/20 18:20	16.2	↑2.0
4/20 18:30	18.5	↑2.3
4/20 18:40	21.1	↑2.6
4/20 18:50	24.0	↑2.9
4/20 19:00	27.1	↑3.1
4/20 19:10	30.5	↑3.4
4/20 19:20	34.1	↑3.6
4/20 19:30	37.8	↑3.7
4/20 19:40	41.8	↑4.0
4/20 19:50	45.8	↑4.0
4/20 20:00	49.9	↑4.1
4/20 20:10	54.1	↑4.2
4/20 20:20	58.4	↑4.3
4/20 20:30	62.7	↑4.3
4/20 20:40	66.9	↑4.2
4/20 20:50	71.1	↑4.2
4/20 21:00	75.2	↑4.1
4/20 21:10	79.2	↑4.0
4/20 21:20	83.1	↑3.9
4/20 21:30	86.8	↑3.7
4/20 21:40	90.4	↑3.6
4/20 21:50	93.7	↑3.3
4/20 22:00	96.8	↑3.1
4/20 22:10	99.7	↑2.9
4/20 22:20	102.3	↑2.6
4/20 22:30	104.6	↑2.3
4/20 22:40	106.6	↑2.0
4/20 22:50	108.3	↑1.7
4/20 23:00	109.7	↑1.4
4/20 23:10	110.8	↑1.1
4/20 23:20	111.6	↑0.8
4/20 23:30	112.0	↑0.4	満潮
4/20 23:40	112.1	↑0.1
4/20 23:50	111.9	↓-0.2