20 (火)	08:12	02:07	20:38	14:26
	136cm	9cm	136cm	-4cm
大潮 出 05:46 入 18:59 出 18:29 入 04:54 潮干狩り ◎ 12:22～16:28

大河内湾（長崎）2027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	41.3	↓-4.8
4/20 00:10	36.7	↓-4.6
4/20 00:20	32.3	↓-4.4
4/20 00:30	28.2	↓-4.1
4/20 00:40	24.4	↓-3.8
4/20 00:50	21.0	↓-3.4
4/20 01:00	17.9	↓-3.1
4/20 01:10	15.2	↓-2.7
4/20 01:20	12.9	↓-2.3
4/20 01:30	11.1	↓-1.8
4/20 01:40	9.6	↓-1.5
4/20 01:50	8.7	↓-0.9
4/20 02:00	8.2	↓-0.5	干潮
4/20 02:10	8.1	↓-0.1
4/20 02:20	8.5	↑0.4
4/20 02:30	9.4	↑0.9
4/20 02:40	10.7	↑1.3
4/20 02:50	12.5	↑1.8
4/20 03:00	14.7	↑2.2
4/20 03:10	17.4	↑2.7
4/20 03:20	20.4	↑3.0
4/20 03:30	23.8	↑3.4
4/20 03:40	27.6	↑3.8
4/20 03:50	31.7	↑4.1
4/20 04:00	36.1	↑4.4
4/20 04:10	40.8	↑4.7
4/20 04:20	45.7	↑4.9
4/20 04:30	50.8	↑5.1
4/20 04:40	56.0	↑5.2
4/20 04:50	61.4	↑5.4
4/20 05:00	66.8	↑5.4
4/20 05:10	72.3	↑5.5
4/20 05:20	77.8	↑5.5
4/20 05:30	83.3	↑5.5
4/20 05:40	88.7	↑5.4
4/20 05:50	93.9	↑5.2
4/20 06:00	99.0	↑5.1
4/20 06:10	103.9	↑4.9
4/20 06:20	108.6	↑4.7
4/20 06:30	112.9	↑4.3
4/20 06:40	117.0	↑4.1
4/20 06:50	120.8	↑3.8
4/20 07:00	124.2	↑3.4
4/20 07:10	127.2	↑3.0
4/20 07:20	129.8	↑2.6
4/20 07:30	131.9	↑2.1
4/20 07:40	133.6	↑1.7
4/20 07:50	134.9	↑1.3
4/20 08:00	135.6	↑0.7
4/20 08:10	135.9	↑0.3	満潮
4/20 08:20	135.7	↓-0.2
4/20 08:30	135.0	↓-0.7
4/20 08:40	133.9	↓-1.1
4/20 08:50	132.2	↓-1.7
4/20 09:00	130.1	↓-2.1
4/20 09:10	127.6	↓-2.5
4/20 09:20	124.6	↓-3.0
4/20 09:30	121.2	↓-3.4
4/20 09:40	117.4	↓-3.8
4/20 09:50	113.2	↓-4.2
4/20 10:00	108.7	↓-4.5
4/20 10:10	103.9	↓-4.8
4/20 10:20	98.8	↓-5.1
4/20 10:30	93.5	↓-5.3
4/20 10:40	88.0	↓-5.5
4/20 10:50	82.3	↓-5.7
4/20 11:00	76.5	↓-5.8
4/20 11:10	70.7	↓-5.8
4/20 11:20	64.8	↓-5.9
4/20 11:30	58.9	↓-5.9
4/20 11:40	53.0	↓-5.9
4/20 11:50	47.2	↓-5.8
4/20 12:00	41.6	↓-5.6
4/20 12:10	36.1	↓-5.5
4/20 12:20	30.9	↓-5.2
4/20 12:30	25.9	↓-5.0
4/20 12:40	21.2	↓-4.7
4/20 12:50	16.7	↓-4.5
4/20 13:00	12.7	↓-4.0
4/20 13:10	9.0	↓-3.7
4/20 13:20	5.7	↓-3.3
4/20 13:30	2.9	↓-2.8
4/20 13:40	0.5	↓-2.4
4/20 13:50	-1.5	↓-2.0
4/20 14:00	-3.0	↓-1.5
4/20 14:10	-3.9	↓-0.9
4/20 14:20	-4.4	↓-0.5	干潮
4/20 14:30	-4.4	0
4/20 14:40	-3.9	↑0.5
4/20 14:50	-2.8	↑1.1
4/20 15:00	-1.3	↑1.5
4/20 15:10	0.6	↑1.9
4/20 15:20	3.1	↑2.5
4/20 15:30	6.0	↑2.9
4/20 15:40	9.3	↑3.3
4/20 15:50	13.0	↑3.7
4/20 16:00	17.1	↑4.1
4/20 16:10	21.6	↑4.5
4/20 16:20	26.3	↑4.7
4/20 16:30	31.4	↑5.1
4/20 16:40	36.7	↑5.3
4/20 16:50	42.1	↑5.4
4/20 17:00	47.8	↑5.7
4/20 17:10	53.6	↑5.8
4/20 17:20	59.4	↑5.8
4/20 17:30	65.3	↑5.9
4/20 17:40	71.3	↑6.0	最大潮位差
4/20 17:50	77.1	↑5.8
4/20 18:00	82.9	↑5.8
4/20 18:10	88.5	↑5.6
4/20 18:20	94.0	↑5.5
4/20 18:30	99.3	↑5.3
4/20 18:40	104.4	↑5.1
4/20 18:50	109.1	↑4.7
4/20 19:00	113.6	↑4.5
4/20 19:10	117.7	↑4.1
4/20 19:20	121.4	↑3.7
4/20 19:30	124.7	↑3.3
4/20 19:40	127.7	↑3.0
4/20 19:50	130.1	↑2.4
4/20 20:00	132.1	↑2.0
4/20 20:10	133.7	↑1.6
4/20 20:20	134.7	↑1.0
4/20 20:30	135.3	↑0.6	満潮
4/20 20:40	135.4	↑0.1
4/20 20:50	135.0	↓-0.4
4/20 21:00	134.1	↓-0.9
4/20 21:10	132.7	↓-1.4
4/20 21:20	130.8	↓-1.9
4/20 21:30	128.5	↓-2.3
4/20 21:40	125.8	↓-2.7
4/20 21:50	122.6	↓-3.2
4/20 22:00	119.1	↓-3.5
4/20 22:10	115.2	↓-3.9
4/20 22:20	111.0	↓-4.2
4/20 22:30	106.4	↓-4.6
4/20 22:40	101.6	↓-4.8
4/20 22:50	96.6	↓-5.0
4/20 23:00	91.4	↓-5.2
4/20 23:10	86.0	↓-5.4
4/20 23:20	80.5	↓-5.5
4/20 23:30	74.9	↓-5.6
4/20 23:40	69.4	↓-5.5
4/20 23:50	63.8	↓-5.6