20 (水)	00:08	06:07	12:08	18:36
	111cm	37cm	108cm	26cm
中潮 出 05:45 入 18:59 出 23:52 入 09:34 潮干狩り ○ 17:38～18:59

大河内湾（長崎）2033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	110.5	↑0.3	満潮
4/20 00:10	110.6	↑0.1
4/20 00:20	110.4	↓-0.2
4/20 00:30	109.8	↓-0.6
4/20 00:40	109.0	↓-0.8
4/20 00:50	107.9	↓-1.1
4/20 01:00	106.5	↓-1.4
4/20 01:10	104.9	↓-1.6
4/20 01:20	103.0	↓-1.9
4/20 01:30	100.9	↓-2.1
4/20 01:40	98.6	↓-2.3
4/20 01:50	96.0	↓-2.6
4/20 02:00	93.4	↓-2.6
4/20 02:10	90.5	↓-2.9
4/20 02:20	87.5	↓-3.0
4/20 02:30	84.5	↓-3.0
4/20 02:40	81.3	↓-3.2
4/20 02:50	78.1	↓-3.2
4/20 03:00	74.9	↓-3.2
4/20 03:10	71.6	↓-3.3
4/20 03:20	68.4	↓-3.2
4/20 03:30	65.2	↓-3.2
4/20 03:40	62.1	↓-3.1
4/20 03:50	59.1	↓-3.0
4/20 04:00	56.1	↓-3.0
4/20 04:10	53.4	↓-2.7
4/20 04:20	50.7	↓-2.7
4/20 04:30	48.3	↓-2.4
4/20 04:40	46.0	↓-2.3
4/20 04:50	44.0	↓-2.0
4/20 05:00	42.1	↓-1.9
4/20 05:10	40.5	↓-1.6
4/20 05:20	39.2	↓-1.3
4/20 05:30	38.1	↓-1.1
4/20 05:40	37.3	↓-0.8
4/20 05:50	36.7	↓-0.6
4/20 06:00	36.4	↓-0.3	干潮
4/20 06:10	36.4	0
4/20 06:20	36.6	↑0.2
4/20 06:30	37.2	↑0.6
4/20 06:40	37.9	↑0.7
4/20 06:50	39.0	↑1.1
4/20 07:00	40.3	↑1.3
4/20 07:10	41.8	↑1.5
4/20 07:20	43.6	↑1.8
4/20 07:30	45.6	↑2.0
4/20 07:40	47.8	↑2.2
4/20 07:50	50.1	↑2.3
4/20 08:00	52.7	↑2.6
4/20 08:10	55.3	↑2.6
4/20 08:20	58.1	↑2.8
4/20 08:30	61.0	↑2.9
4/20 08:40	64.0	↑3.0
4/20 08:50	67.0	↑3.0
4/20 09:00	70.1	↑3.1
4/20 09:10	73.2	↑3.1
4/20 09:20	76.3	↑3.1
4/20 09:30	79.3	↑3.0
4/20 09:40	82.3	↑3.0
4/20 09:50	85.2	↑2.9
4/20 10:00	88.1	↑2.9
4/20 10:10	90.7	↑2.6
4/20 10:20	93.3	↑2.6
4/20 10:30	95.7	↑2.4
4/20 10:40	97.9	↑2.2
4/20 10:50	99.9	↑2.0
4/20 11:00	101.8	↑1.9
4/20 11:10	103.3	↑1.5
4/20 11:20	104.7	↑1.4
4/20 11:30	105.8	↑1.1
4/20 11:40	106.7	↑0.9
4/20 11:50	107.3	↑0.6
4/20 12:00	107.6	↑0.3	満潮
4/20 12:10	107.7	↑0.1
4/20 12:20	107.5	↓-0.2
4/20 12:30	107.0	↓-0.5
4/20 12:40	106.2	↓-0.8
4/20 12:50	105.2	↓-1.0
4/20 13:00	104.0	↓-1.2
4/20 13:10	102.5	↓-1.5
4/20 13:20	100.7	↓-1.8
4/20 13:30	98.7	↓-2.0
4/20 13:40	96.6	↓-2.1
4/20 13:50	94.2	↓-2.4
4/20 14:00	91.6	↓-2.6
4/20 14:10	88.9	↓-2.7
4/20 14:20	86.0	↓-2.9
4/20 14:30	83.0	↓-3.0
4/20 14:40	79.9	↓-3.1
4/20 14:50	76.7	↓-3.2
4/20 15:00	73.4	↓-3.3
4/20 15:10	70.1	↓-3.3
4/20 15:20	66.8	↓-3.3
4/20 15:30	63.4	↓-3.4	最大潮位差
4/20 15:40	60.1	↓-3.3
4/20 15:50	56.9	↓-3.2
4/20 16:00	53.7	↓-3.2
4/20 16:10	50.6	↓-3.1
4/20 16:20	47.6	↓-3.0
4/20 16:30	44.7	↓-2.9
4/20 16:40	41.9	↓-2.8
4/20 16:50	39.4	↓-2.5
4/20 17:00	37.0	↓-2.4
4/20 17:10	34.8	↓-2.2
4/20 17:20	32.8	↓-2.0
4/20 17:30	31.1	↓-1.7
4/20 17:40	29.5	↓-1.6
4/20 17:50	28.2	↓-1.3
4/20 18:00	27.2	↓-1.0
4/20 18:10	26.4	↓-0.8
4/20 18:20	25.9	↓-0.5
4/20 18:30	25.6	↓-0.3	干潮
4/20 18:40	25.6	0
4/20 18:50	25.9	↑0.3
4/20 19:00	26.4	↑0.5
4/20 19:10	27.2	↑0.8
4/20 19:20	28.2	↑1.0
4/20 19:30	29.5	↑1.3
4/20 19:40	31.0	↑1.5
4/20 19:50	32.7	↑1.7
4/20 20:00	34.6	↑1.9
4/20 20:10	36.7	↑2.1
4/20 20:20	39.0	↑2.3
4/20 20:30	41.4	↑2.4
4/20 20:40	44.0	↑2.6
4/20 20:50	46.7	↑2.7
4/20 21:00	49.5	↑2.8
4/20 21:10	52.4	↑2.9
4/20 21:20	55.4	↑3.0
4/20 21:30	58.4	↑3.0
4/20 21:40	61.5	↑3.1
4/20 21:50	64.5	↑3.0
4/20 22:00	67.6	↑3.1
4/20 22:10	70.6	↑3.0
4/20 22:20	73.5	↑2.9
4/20 22:30	76.4	↑2.9
4/20 22:40	79.2	↑2.8
4/20 22:50	81.9	↑2.7
4/20 23:00	84.5	↑2.6
4/20 23:10	86.9	↑2.4
4/20 23:20	89.1	↑2.2
4/20 23:30	91.2	↑2.1
4/20 23:40	93.2	↑2.0
4/20 23:50	94.9	↑1.7