20 (金)	04:05	10:20	16:13	22:53
	89cm	59cm	86cm	41cm
長潮 出 05:45 入 18:59 出 12:03 入 01:59

大河内湾（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	61.4	↑1.6
4/20 00:10	63.1	↑1.7
4/20 00:20	64.7	↑1.6
4/20 00:30	66.4	↑1.7
4/20 00:40	68.0	↑1.6
4/20 00:50	69.7	↑1.7
4/20 01:00	71.3	↑1.6
4/20 01:10	72.8	↑1.5
4/20 01:20	74.4	↑1.6
4/20 01:30	75.9	↑1.5
4/20 01:40	77.3	↑1.4
4/20 01:50	78.6	↑1.3
4/20 02:00	79.9	↑1.3
4/20 02:10	81.2	↑1.3
4/20 02:20	82.3	↑1.1
4/20 02:30	83.3	↑1.0
4/20 02:40	84.3	↑1.0
4/20 02:50	85.1	↑0.8
4/20 03:00	85.9	↑0.8
4/20 03:10	86.5	↑0.6
4/20 03:20	87.1	↑0.6
4/20 03:30	87.5	↑0.4
4/20 03:40	87.8	↑0.3
4/20 03:50	88.0	↑0.2
4/20 04:00	88.1	↑0.1	満潮
4/20 04:10	88.1	0
4/20 04:20	88.0	↓-0.1
4/20 04:30	87.8	↓-0.2
4/20 04:40	87.4	↓-0.4
4/20 04:50	87.0	↓-0.4
4/20 05:00	86.5	↓-0.5
4/20 05:10	85.8	↓-0.7
4/20 05:20	85.1	↓-0.7
4/20 05:30	84.3	↓-0.8
4/20 05:40	83.5	↓-0.8
4/20 05:50	82.5	↓-1.0
4/20 06:00	81.5	↓-1.0
4/20 06:10	80.5	↓-1.0
4/20 06:20	79.4	↓-1.1
4/20 06:30	78.2	↓-1.2
4/20 06:40	77.1	↓-1.1
4/20 06:50	75.9	↓-1.2
4/20 07:00	74.6	↓-1.3
4/20 07:10	73.4	↓-1.2
4/20 07:20	72.2	↓-1.2
4/20 07:30	71.0	↓-1.2
4/20 07:40	69.8	↓-1.2
4/20 07:50	68.6	↓-1.2
4/20 08:00	67.5	↓-1.1
4/20 08:10	66.4	↓-1.1
4/20 08:20	65.4	↓-1.0
4/20 08:30	64.4	↓-1.0
4/20 08:40	63.4	↓-1.0
4/20 08:50	62.6	↓-0.8
4/20 09:00	61.8	↓-0.8
4/20 09:10	61.1	↓-0.7
4/20 09:20	60.5	↓-0.6
4/20 09:30	59.9	↓-0.6
4/20 09:40	59.5	↓-0.4
4/20 09:50	59.2	↓-0.3
4/20 10:00	58.9	↓-0.3
4/20 10:10	58.8	↓-0.1	干潮
4/20 10:20	58.7	↓-0.1	干潮
4/20 10:30	58.8	↑0.1
4/20 10:40	58.9	↑0.1
4/20 10:50	59.2	↑0.3
4/20 11:00	59.6	↑0.4
4/20 11:10	60.0	↑0.4
4/20 11:20	60.5	↑0.5
4/20 11:30	61.2	↑0.7
4/20 11:40	61.9	↑0.7
4/20 11:50	62.7	↑0.8
4/20 12:00	63.5	↑0.8
4/20 12:10	64.4	↑0.9
4/20 12:20	65.4	↑1.0
4/20 12:30	66.5	↑1.1
4/20 12:40	67.5	↑1.0
4/20 12:50	68.7	↑1.2
4/20 13:00	69.8	↑1.1
4/20 13:10	71.0	↑1.2
4/20 13:20	72.2	↑1.2
4/20 13:30	73.3	↑1.1
4/20 13:40	74.5	↑1.2
4/20 13:50	75.7	↑1.2
4/20 14:00	76.8	↑1.1
4/20 14:10	77.9	↑1.1
4/20 14:20	78.9	↑1.0
4/20 14:30	79.9	↑1.0
4/20 14:40	80.9	↑1.0
4/20 14:50	81.7	↑0.8
4/20 15:00	82.5	↑0.8
4/20 15:10	83.2	↑0.7
4/20 15:20	83.8	↑0.6
4/20 15:30	84.4	↑0.6
4/20 15:40	84.8	↑0.4
4/20 15:50	85.1	↑0.3
4/20 16:00	85.3	↑0.2
4/20 16:10	85.4	↑0.1	満潮
4/20 16:20	85.3	↓-0.1
4/20 16:30	85.2	↓-0.1
4/20 16:40	84.9	↓-0.3
4/20 16:50	84.5	↓-0.4
4/20 17:00	84.0	↓-0.5
4/20 17:10	83.3	↓-0.7
4/20 17:20	82.6	↓-0.7
4/20 17:30	81.7	↓-0.9
4/20 17:40	80.7	↓-1.0
4/20 17:50	79.6	↓-1.1
4/20 18:00	78.4	↓-1.2
4/20 18:10	77.1	↓-1.3
4/20 18:20	75.8	↓-1.3
4/20 18:30	74.3	↓-1.5
4/20 18:40	72.8	↓-1.5
4/20 18:50	71.2	↓-1.6
4/20 19:00	69.5	↓-1.7
4/20 19:10	67.8	↓-1.7
4/20 19:20	66.1	↓-1.7
4/20 19:30	64.3	↓-1.8	最大潮位差
4/20 19:40	62.5	↓-1.8	最大潮位差
4/20 19:50	60.7	↓-1.8	最大潮位差
4/20 20:00	58.9	↓-1.8	最大潮位差
4/20 20:10	57.2	↓-1.7
4/20 20:20	55.5	↓-1.7
4/20 20:30	53.8	↓-1.7
4/20 20:40	52.1	↓-1.7
4/20 20:50	50.6	↓-1.5
4/20 21:00	49.1	↓-1.5
4/20 21:10	47.7	↓-1.4
4/20 21:20	46.4	↓-1.3
4/20 21:30	45.1	↓-1.3
4/20 21:40	44.1	↓-1.0
4/20 21:50	43.1	↓-1.0
4/20 22:00	42.2	↓-0.9
4/20 22:10	41.5	↓-0.7
4/20 22:20	41.0	↓-0.5
4/20 22:30	40.6	↓-0.4
4/20 22:40	40.3	↓-0.3
4/20 22:50	40.2	↓-0.1	干潮
4/20 23:00	40.2	0
4/20 23:10	40.4	↑0.2
4/20 23:20	40.8	↑0.4
4/20 23:30	41.3	↑0.5
4/20 23:40	42.0	↑0.7
4/20 23:50	42.9	↑0.9