18 (木)	08:55	02:31	20:51	14:56
	183cm	1cm	180cm	28cm
大潮 出 07:05 入 18:10 出 16:34 入 05:59 潮干狩り ○ 13:37～16:14

万関瀬戸（長崎）2038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	58.9	↓-6.7
2/18 00:10	52.3	↓-6.6
2/18 00:20	46.0	↓-6.3
2/18 00:30	39.9	↓-6.1
2/18 00:40	34.1	↓-5.8
2/18 00:50	28.7	↓-5.4
2/18 01:00	23.6	↓-5.1
2/18 01:10	19.0	↓-4.6
2/18 01:20	14.8	↓-4.2
2/18 01:30	11.2	↓-3.6
2/18 01:40	8.0	↓-3.2
2/18 01:50	5.4	↓-2.6
2/18 02:00	3.3	↓-2.1
2/18 02:10	1.8	↓-1.5
2/18 02:20	1.0	↓-0.8
2/18 02:30	0.7	↓-0.3	干潮
2/18 02:40	1.0	↑0.3
2/18 02:50	1.9	↑0.9
2/18 03:00	3.4	↑1.5
2/18 03:10	5.4	↑2.0
2/18 03:20	8.1	↑2.7
2/18 03:30	11.3	↑3.2
2/18 03:40	15.1	↑3.8
2/18 03:50	19.4	↑4.3
2/18 04:00	24.1	↑4.7
2/18 04:10	29.4	↑5.3
2/18 04:20	35.0	↑5.6
2/18 04:30	41.0	↑6.0
2/18 04:40	47.4	↑6.4
2/18 04:50	54.1	↑6.7
2/18 05:00	61.0	↑6.9
2/18 05:10	68.1	↑7.1
2/18 05:20	75.4	↑7.3
2/18 05:30	82.8	↑7.4
2/18 05:40	90.3	↑7.5
2/18 05:50	97.8	↑7.5
2/18 06:00	105.2	↑7.4
2/18 06:10	112.5	↑7.3
2/18 06:20	119.7	↑7.2
2/18 06:30	126.8	↑7.1
2/18 06:40	133.5	↑6.7
2/18 06:50	140.0	↑6.5
2/18 07:00	146.2	↑6.2
2/18 07:10	152.0	↑5.8
2/18 07:20	157.4	↑5.4
2/18 07:30	162.3	↑4.9
2/18 07:40	166.8	↑4.5
2/18 07:50	170.8	↑4.0
2/18 08:00	174.2	↑3.4
2/18 08:10	177.1	↑2.9
2/18 08:20	179.4	↑2.3
2/18 08:30	181.1	↑1.7
2/18 08:40	182.2	↑1.1
2/18 08:50	182.8	↑0.6	満潮
2/18 09:00	182.7	↓-0.1
2/18 09:10	182.0	↓-0.7
2/18 09:20	180.7	↓-1.3
2/18 09:30	178.9	↓-1.8
2/18 09:40	176.5	↓-2.4
2/18 09:50	173.5	↓-3.0
2/18 10:00	170.0	↓-3.5
2/18 10:10	166.1	↓-3.9
2/18 10:20	161.6	↓-4.5
2/18 10:30	156.8	↓-4.8
2/18 10:40	151.5	↓-5.3
2/18 10:50	145.9	↓-5.6
2/18 11:00	140.0	↓-5.9
2/18 11:10	133.8	↓-6.2
2/18 11:20	127.4	↓-6.4
2/18 11:30	120.9	↓-6.5
2/18 11:40	114.2	↓-6.7
2/18 11:50	107.5	↓-6.7
2/18 12:00	100.7	↓-6.8
2/18 12:10	94.0	↓-6.7
2/18 12:20	87.3	↓-6.7
2/18 12:30	80.8	↓-6.5
2/18 12:40	74.5	↓-6.3
2/18 12:50	68.4	↓-6.1
2/18 13:00	62.6	↓-5.8
2/18 13:10	57.1	↓-5.5
2/18 13:20	51.9	↓-5.2
2/18 13:30	47.2	↓-4.7
2/18 13:40	42.9	↓-4.3
2/18 13:50	39.1	↓-3.8
2/18 14:00	35.7	↓-3.4
2/18 14:10	32.9	↓-2.8
2/18 14:20	30.6	↓-2.3
2/18 14:30	28.9	↓-1.7
2/18 14:40	27.7	↓-1.2
2/18 14:50	27.1	↓-0.6	干潮
2/18 15:00	27.1	0
2/18 15:10	27.7	↑0.6
2/18 15:20	28.9	↑1.2
2/18 15:30	30.7	↑1.8
2/18 15:40	33.0	↑2.3
2/18 15:50	35.8	↑2.8
2/18 16:00	39.2	↑3.4
2/18 16:10	43.0	↑3.8
2/18 16:20	47.3	↑4.3
2/18 16:30	52.1	↑4.8
2/18 16:40	57.2	↑5.1
2/18 16:50	62.7	↑5.5
2/18 17:00	68.5	↑5.8
2/18 17:10	74.6	↑6.1
2/18 17:20	80.9	↑6.3
2/18 17:30	87.4	↑6.5
2/18 17:40	94.0	↑6.6
2/18 17:50	100.7	↑6.7
2/18 18:00	107.4	↑6.7
2/18 18:10	114.1	↑6.7
2/18 18:20	120.7	↑6.6
2/18 18:30	127.1	↑6.4
2/18 18:40	133.4	↑6.3
2/18 18:50	139.5	↑6.1
2/18 19:00	145.3	↑5.8
2/18 19:10	150.7	↑5.4
2/18 19:20	155.8	↑5.1
2/18 19:30	160.4	↑4.6
2/18 19:40	164.7	↑4.3
2/18 19:50	168.4	↑3.7
2/18 20:00	171.6	↑3.2
2/18 20:10	174.3	↑2.7
2/18 20:20	176.4	↑2.1
2/18 20:30	178.0	↑1.6
2/18 20:40	178.9	↑0.9
2/18 20:50	179.2	↑0.3	満潮
2/18 21:00	178.9	↓-0.3
2/18 21:10	178.0	↓-0.9
2/18 21:20	176.4	↓-1.6
2/18 21:30	174.3	↓-2.1
2/18 21:40	171.5	↓-2.8
2/18 21:50	168.2	↓-3.3
2/18 22:00	164.3	↓-3.9
2/18 22:10	159.8	↓-4.5
2/18 22:20	154.8	↓-5.0
2/18 22:30	149.4	↓-5.4
2/18 22:40	143.5	↓-5.9
2/18 22:50	137.2	↓-6.3
2/18 23:00	130.6	↓-6.6
2/18 23:10	123.6	↓-7.0
2/18 23:20	116.3	↓-7.3
2/18 23:30	108.9	↓-7.4
2/18 23:40	101.3	↓-7.6
2/18 23:50	93.5	↓-7.8	最大潮位差