20 (火)	08:19	02:00	20:16	14:16
	125cm	1cm	130cm	21cm
大潮 出 07:24 入 17:17 出 05:38 入 16:17 潮干狩り ○ 13:06～15:25

大河内湾（長崎）2033年12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
12/20 00:00	28.7	↓-4.4
12/20 00:10	24.5	↓-4.2
12/20 00:20	20.6	↓-3.9
12/20 00:30	17.0	↓-3.6
12/20 00:40	13.8	↓-3.2
12/20 00:50	10.8	↓-3.0
12/20 01:00	8.2	↓-2.6
12/20 01:10	6.0	↓-2.2
12/20 01:20	4.2	↓-1.8
12/20 01:30	2.7	↓-1.5
12/20 01:40	1.7	↓-1.0
12/20 01:50	1.1	↓-0.6	干潮
12/20 02:00	1.0	↓-0.1	干潮
12/20 02:10	1.2	↑0.2
12/20 02:20	1.9	↑0.7
12/20 02:30	3.0	↑1.1
12/20 02:40	4.6	↑1.6
12/20 02:50	6.5	↑1.9
12/20 03:00	8.8	↑2.3
12/20 03:10	11.5	↑2.7
12/20 03:20	14.5	↑3.0
12/20 03:30	17.9	↑3.4
12/20 03:40	21.6	↑3.7
12/20 03:50	25.6	↑4.0
12/20 04:00	29.8	↑4.2
12/20 04:10	34.3	↑4.5
12/20 04:20	38.9	↑4.6
12/20 04:30	43.7	↑4.8
12/20 04:40	48.7	↑5.0
12/20 04:50	53.7	↑5.0
12/20 05:00	58.8	↑5.1
12/20 05:10	64.0	↑5.2
12/20 05:20	69.1	↑5.1
12/20 05:30	74.2	↑5.1
12/20 05:40	79.2	↑5.0
12/20 05:50	84.1	↑4.9
12/20 06:00	88.8	↑4.7
12/20 06:10	93.4	↑4.6
12/20 06:20	97.7	↑4.3
12/20 06:30	101.9	↑4.2
12/20 06:40	105.7	↑3.8
12/20 06:50	109.3	↑3.6
12/20 07:00	112.5	↑3.2
12/20 07:10	115.4	↑2.9
12/20 07:20	117.9	↑2.5
12/20 07:30	120.1	↑2.2
12/20 07:40	121.8	↑1.7
12/20 07:50	123.2	↑1.4
12/20 08:00	124.2	↑1.0
12/20 08:10	124.7	↑0.5	満潮
12/20 08:20	124.9	↑0.2
12/20 08:30	124.6	↓-0.3
12/20 08:40	123.9	↓-0.7
12/20 08:50	122.8	↓-1.1
12/20 09:00	121.3	↓-1.5
12/20 09:10	119.5	↓-1.8
12/20 09:20	117.3	↓-2.2
12/20 09:30	114.7	↓-2.6
12/20 09:40	111.8	↓-2.9
12/20 09:50	108.6	↓-3.2
12/20 10:00	105.1	↓-3.5
12/20 10:10	101.4	↓-3.7
12/20 10:20	97.5	↓-3.9
12/20 10:30	93.4	↓-4.1
12/20 10:40	89.1	↓-4.3
12/20 10:50	84.7	↓-4.4
12/20 11:00	80.1	↓-4.6
12/20 11:10	75.6	↓-4.5
12/20 11:20	71.0	↓-4.6
12/20 11:30	66.4	↓-4.6
12/20 11:40	61.9	↓-4.5
12/20 11:50	57.5	↓-4.4
12/20 12:00	53.2	↓-4.3
12/20 12:10	49.0	↓-4.2
12/20 12:20	45.0	↓-4.0
12/20 12:30	41.2	↓-3.8
12/20 12:40	37.7	↓-3.5
12/20 12:50	34.4	↓-3.3
12/20 13:00	31.5	↓-2.9
12/20 13:10	28.8	↓-2.7
12/20 13:20	26.5	↓-2.3
12/20 13:30	24.5	↓-2.0
12/20 13:40	22.9	↓-1.6
12/20 13:50	21.7	↓-1.2
12/20 14:00	20.9	↓-0.8
12/20 14:10	20.5	↓-0.4	干潮
12/20 14:20	20.5	0
12/20 14:30	20.9	↑0.4
12/20 14:40	21.7	↑0.8
12/20 14:50	22.9	↑1.2
12/20 15:00	24.5	↑1.6
12/20 15:10	26.5	↑2.0
12/20 15:20	28.8	↑2.3
12/20 15:30	31.5	↑2.7
12/20 15:40	34.5	↑3.0
12/20 15:50	37.8	↑3.3
12/20 16:00	41.4	↑3.6
12/20 16:10	45.3	↑3.9
12/20 16:20	49.3	↑4.0
12/20 16:30	53.6	↑4.3
12/20 16:40	58.0	↑4.4
12/20 16:50	62.6	↑4.6
12/20 17:00	67.3	↑4.7
12/20 17:10	72.0	↑4.7
12/20 17:20	76.8	↑4.8
12/20 17:30	81.5	↑4.7
12/20 17:40	86.2	↑4.7
12/20 17:50	90.8	↑4.6
12/20 18:00	95.4	↑4.6
12/20 18:10	99.7	↑4.3
12/20 18:20	103.9	↑4.2
12/20 18:30	107.8	↑3.9
12/20 18:40	111.5	↑3.7
12/20 18:50	115.0	↑3.5
12/20 19:00	118.1	↑3.1
12/20 19:10	120.9	↑2.8
12/20 19:20	123.3	↑2.4
12/20 19:30	125.4	↑2.1
12/20 19:40	127.1	↑1.7
12/20 19:50	128.3	↑1.2
12/20 20:00	129.2	↑0.9
12/20 20:10	129.6	↑0.4	満潮
12/20 20:20	129.6	0
12/20 20:30	129.2	↓-0.4
12/20 20:40	128.3	↓-0.9
12/20 20:50	127.0	↓-1.3
12/20 21:00	125.2	↓-1.8
12/20 21:10	123.1	↓-2.1
12/20 21:20	120.5	↓-2.6
12/20 21:30	117.6	↓-2.9
12/20 21:40	114.2	↓-3.4
12/20 21:50	110.6	↓-3.6
12/20 22:00	106.6	↓-4.0
12/20 22:10	102.3	↓-4.3
12/20 22:20	97.7	↓-4.6
12/20 22:30	92.9	↓-4.8
12/20 22:40	87.9	↓-5.0
12/20 22:50	82.7	↓-5.2
12/20 23:00	77.3	↓-5.4
12/20 23:10	71.9	↓-5.4
12/20 23:20	66.4	↓-5.5
12/20 23:30	60.8	↓-5.6	最大潮位差
12/20 23:40	55.3	↓-5.5
12/20 23:50	49.8	↓-5.5