18 (金)	01:35	07:22	13:38	20:35
	83cm	40cm	89cm	30cm
小潮 出 07:06 入 18:09 出 01:50 入 11:36

大河内湾（長崎）2028年02月18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
2/18 00:00	73.9	↑1.8
2/18 00:10	75.5	↑1.6
2/18 00:20	77.0	↑1.5
2/18 00:30	78.3	↑1.3
2/18 00:40	79.4	↑1.1
2/18 00:50	80.4	↑1.0
2/18 01:00	81.1	↑0.7
2/18 01:10	81.7	↑0.6
2/18 01:20	82.0	↑0.3
2/18 01:30	82.2	↑0.2	満潮
2/18 01:40	82.2	0
2/18 01:50	82.0	↓-0.2
2/18 02:00	81.6	↓-0.4
2/18 02:10	81.0	↓-0.6
2/18 02:20	80.2	↓-0.8
2/18 02:30	79.3	↓-0.9
2/18 02:40	78.3	↓-1.0
2/18 02:50	77.1	↓-1.2
2/18 03:00	75.7	↓-1.4
2/18 03:10	74.3	↓-1.4
2/18 03:20	72.7	↓-1.6
2/18 03:30	71.0	↓-1.7
2/18 03:40	69.3	↓-1.7
2/18 03:50	67.5	↓-1.8
2/18 04:00	65.6	↓-1.9
2/18 04:10	63.7	↓-1.9
2/18 04:20	61.8	↓-1.9
2/18 04:30	59.9	↓-1.9
2/18 04:40	57.9	↓-2.0
2/18 04:50	56.0	↓-1.9
2/18 05:00	54.2	↓-1.8
2/18 05:10	52.4	↓-1.8
2/18 05:20	50.7	↓-1.7
2/18 05:30	49.0	↓-1.7
2/18 05:40	47.5	↓-1.5
2/18 05:50	46.0	↓-1.5
2/18 06:00	44.7	↓-1.3
2/18 06:10	43.5	↓-1.2
2/18 06:20	42.5	↓-1.0
2/18 06:30	41.6	↓-0.9
2/18 06:40	40.8	↓-0.8
2/18 06:50	40.2	↓-0.6
2/18 07:00	39.8	↓-0.4
2/18 07:10	39.5	↓-0.3
2/18 07:20	39.4	↓-0.1	干潮
2/18 07:30	39.5	↑0.1
2/18 07:40	39.7	↑0.2
2/18 07:50	40.2	↑0.5
2/18 08:00	40.7	↑0.5
2/18 08:10	41.5	↑0.8
2/18 08:20	42.4	↑0.9
2/18 08:30	43.4	↑1.0
2/18 08:40	44.6	↑1.2
2/18 08:50	46.0	↑1.4
2/18 09:00	47.4	↑1.4
2/18 09:10	49.0	↑1.6
2/18 09:20	50.7	↑1.7
2/18 09:30	52.4	↑1.7
2/18 09:40	54.3	↑1.9
2/18 09:50	56.2	↑1.9
2/18 10:00	58.2	↑2.0
2/18 10:10	60.2	↑2.0
2/18 10:20	62.2	↑2.0
2/18 10:30	64.3	↑2.1
2/18 10:40	66.4	↑2.1
2/18 10:50	68.4	↑2.0
2/18 11:00	70.4	↑2.0
2/18 11:10	72.4	↑2.0
2/18 11:20	74.3	↑1.9
2/18 11:30	76.1	↑1.8
2/18 11:40	77.9	↑1.8
2/18 11:50	79.5	↑1.6
2/18 12:00	81.1	↑1.6
2/18 12:10	82.5	↑1.4
2/18 12:20	83.8	↑1.3
2/18 12:30	85.0	↑1.2
2/18 12:40	86.0	↑1.0
2/18 12:50	86.9	↑0.9
2/18 13:00	87.6	↑0.7
2/18 13:10	88.1	↑0.5
2/18 13:20	88.5	↑0.4
2/18 13:30	88.7	↑0.2	満潮
2/18 13:40	88.7	0
2/18 13:50	88.6	↓-0.1
2/18 14:00	88.3	↓-0.3
2/18 14:10	87.8	↓-0.5
2/18 14:20	87.2	↓-0.6
2/18 14:30	86.4	↓-0.8
2/18 14:40	85.4	↓-1.0
2/18 14:50	84.3	↓-1.1
2/18 15:00	83.0	↓-1.3
2/18 15:10	81.6	↓-1.4
2/18 15:20	80.1	↓-1.5
2/18 15:30	78.4	↓-1.7
2/18 15:40	76.7	↓-1.7
2/18 15:50	74.8	↓-1.9
2/18 16:00	72.8	↓-2.0
2/18 16:10	70.8	↓-2.0
2/18 16:20	68.7	↓-2.1
2/18 16:30	66.5	↓-2.2
2/18 16:40	64.4	↓-2.1
2/18 16:50	62.1	↓-2.3	最大潮位差
2/18 17:00	59.9	↓-2.2
2/18 17:10	57.7	↓-2.2
2/18 17:20	55.5	↓-2.2
2/18 17:30	53.3	↓-2.2
2/18 17:40	51.1	↓-2.2
2/18 17:50	49.0	↓-2.1
2/18 18:00	47.0	↓-2.0
2/18 18:10	45.0	↓-2.0
2/18 18:20	43.1	↓-1.9
2/18 18:30	41.3	↓-1.8
2/18 18:40	39.6	↓-1.7
2/18 18:50	38.1	↓-1.5
2/18 19:00	36.6	↓-1.5
2/18 19:10	35.3	↓-1.3
2/18 19:20	34.1	↓-1.2
2/18 19:30	33.1	↓-1.0
2/18 19:40	32.2	↓-0.9
2/18 19:50	31.4	↓-0.8
2/18 20:00	30.8	↓-0.6
2/18 20:10	30.4	↓-0.4
2/18 20:20	30.1	↓-0.3
2/18 20:30	29.9	↓-0.2	干潮
2/18 20:40	29.9	0
2/18 20:50	30.1	↑0.2
2/18 21:00	30.4	↑0.3
2/18 21:10	30.9	↑0.5
2/18 21:20	31.5	↑0.6
2/18 21:30	32.2	↑0.7
2/18 21:40	33.0	↑0.8
2/18 21:50	34.0	↑1.0
2/18 22:00	35.1	↑1.1
2/18 22:10	36.3	↑1.2
2/18 22:20	37.6	↑1.3
2/18 22:30	38.9	↑1.3
2/18 22:40	40.4	↑1.5
2/18 22:50	41.9	↑1.5
2/18 23:00	43.5	↑1.6
2/18 23:10	45.1	↑1.6
2/18 23:20	46.8	↑1.7
2/18 23:30	48.4	↑1.6
2/18 23:40	50.1	↑1.7
2/18 23:50	51.8	↑1.7