20 (月)	10:16	04:16	22:55	16:37
	131cm	18cm	122cm	1cm
中潮 出 05:46 入 18:59 出 07:18 入 22:34 潮干狩り ◎ 14:36～18:40

大河内湾（長崎）2026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	108.2	↓-3.7
4/20 00:10	104.1	↓-4.1
4/20 00:20	99.9	↓-4.2
4/20 00:30	95.5	↓-4.4
4/20 00:40	90.8	↓-4.7
4/20 00:50	86.1	↓-4.7
4/20 01:00	81.3	↓-4.8
4/20 01:10	76.4	↓-4.9
4/20 01:20	71.5	↓-4.9
4/20 01:30	66.6	↓-4.9
4/20 01:40	61.7	↓-4.9
4/20 01:50	57.0	↓-4.7
4/20 02:00	52.4	↓-4.6
4/20 02:10	47.9	↓-4.5
4/20 02:20	43.7	↓-4.2
4/20 02:30	39.7	↓-4.0
4/20 02:40	35.9	↓-3.8
4/20 02:50	32.5	↓-3.4
4/20 03:00	29.3	↓-3.2
4/20 03:10	26.5	↓-2.8
4/20 03:20	24.1	↓-2.4
4/20 03:30	22.0	↓-2.1
4/20 03:40	20.4	↓-1.6
4/20 03:50	19.1	↓-1.3
4/20 04:00	18.3	↓-0.8
4/20 04:10	17.9	↓-0.4	干潮
4/20 04:20	17.9	0
4/20 04:30	18.3	↑0.4
4/20 04:40	19.2	↑0.9
4/20 04:50	20.5	↑1.3
4/20 05:00	22.2	↑1.7
4/20 05:10	24.3	↑2.1
4/20 05:20	26.7	↑2.4
4/20 05:30	29.5	↑2.8
4/20 05:40	32.7	↑3.2
4/20 05:50	36.2	↑3.5
4/20 06:00	39.9	↑3.7
4/20 06:10	44.0	↑4.1
4/20 06:20	48.2	↑4.2
4/20 06:30	52.7	↑4.5
4/20 06:40	57.3	↑4.6
4/20 06:50	62.0	↑4.7
4/20 07:00	66.9	↑4.9
4/20 07:10	71.8	↑4.9
4/20 07:20	76.7	↑4.9
4/20 07:30	81.6	↑4.9
4/20 07:40	86.4	↑4.8
4/20 07:50	91.2	↑4.8
4/20 08:00	95.8	↑4.6
4/20 08:10	100.3	↑4.5
4/20 08:20	104.5	↑4.2
4/20 08:30	108.6	↑4.1
4/20 08:40	112.4	↑3.8
4/20 08:50	115.9	↑3.5
4/20 09:00	119.0	↑3.1
4/20 09:10	121.9	↑2.9
4/20 09:20	124.4	↑2.5
4/20 09:30	126.4	↑2.0
4/20 09:40	128.1	↑1.7
4/20 09:50	129.4	↑1.3
4/20 10:00	130.3	↑0.9
4/20 10:10	130.7	↑0.4	満潮
4/20 10:20	130.7	0
4/20 10:30	130.3	↓-0.4
4/20 10:40	129.4	↓-0.9
4/20 10:50	128.1	↓-1.3
4/20 11:00	126.4	↓-1.7
4/20 11:10	124.2	↓-2.2
4/20 11:20	121.7	↓-2.5
4/20 11:30	118.7	↓-3.0
4/20 11:40	115.4	↓-3.3
4/20 11:50	111.8	↓-3.6
4/20 12:00	107.9	↓-3.9
4/20 12:10	103.6	↓-4.3
4/20 12:20	99.1	↓-4.5
4/20 12:30	94.4	↓-4.7
4/20 12:40	89.5	↓-4.9
4/20 12:50	84.4	↓-5.1
4/20 13:00	79.2	↓-5.2
4/20 13:10	73.9	↓-5.3
4/20 13:20	68.5	↓-5.4	最大潮位差
4/20 13:30	63.1	↓-5.4	最大潮位差
4/20 13:40	57.7	↓-5.4	最大潮位差
4/20 13:50	52.4	↓-5.3
4/20 14:00	47.2	↓-5.2
4/20 14:10	42.1	↓-5.1
4/20 14:20	37.1	↓-5.0
4/20 14:30	32.4	↓-4.7
4/20 14:40	27.9	↓-4.5
4/20 14:50	23.6	↓-4.3
4/20 15:00	19.6	↓-4.0
4/20 15:10	16.0	↓-3.6
4/20 15:20	12.6	↓-3.4
4/20 15:30	9.7	↓-2.9
4/20 15:40	7.1	↓-2.6
4/20 15:50	4.9	↓-2.2
4/20 16:00	3.1	↓-1.8
4/20 16:10	1.8	↓-1.3
4/20 16:20	0.8	↓-1.0
4/20 16:30	0.3	↓-0.5	干潮
4/20 16:40	0.3	0
4/20 16:50	0.7	↑0.4
4/20 17:00	1.5	↑0.8
4/20 17:10	2.7	↑1.2
4/20 17:20	4.3	↑1.6
4/20 17:30	6.4	↑2.1
4/20 17:40	8.8	↑2.4
4/20 17:50	11.6	↑2.8
4/20 18:00	14.8	↑3.2
4/20 18:10	18.2	↑3.4
4/20 18:20	22.0	↑3.8
4/20 18:30	26.1	↑4.1
4/20 18:40	30.3	↑4.2
4/20 18:50	34.8	↑4.5
4/20 19:00	39.5	↑4.7
4/20 19:10	44.3	↑4.8
4/20 19:20	49.2	↑4.9
4/20 19:30	54.2	↑5.0
4/20 19:40	59.2	↑5.0
4/20 19:50	64.3	↑5.1
4/20 20:00	69.3	↑5.0
4/20 20:10	74.3	↑5.0
4/20 20:20	79.1	↑4.8
4/20 20:30	83.8	↑4.7
4/20 20:40	88.4	↑4.6
4/20 20:50	92.7	↑4.3
4/20 21:00	96.9	↑4.2
4/20 21:10	100.7	↑3.8
4/20 21:20	104.3	↑3.6
4/20 21:30	107.6	↑3.3
4/20 21:40	110.6	↑3.0
4/20 21:50	113.3	↑2.7
4/20 22:00	115.6	↑2.3
4/20 22:10	117.5	↑1.9
4/20 22:20	119.0	↑1.5
4/20 22:30	120.1	↑1.1
4/20 22:40	120.9	↑0.8
4/20 22:50	121.3	↑0.4	満潮
4/20 23:00	121.2	↓-0.1
4/20 23:10	120.8	↓-0.4
4/20 23:20	120.0	↓-0.8
4/20 23:30	118.8	↓-1.2
4/20 23:40	117.3	↓-1.5
4/20 23:50	115.4	↓-1.9