20 (火)	08:58	02:59	21:30	15:12
	298cm	40cm	306cm	5cm
大潮 出 05:47 入 18:57 出 19:58 入 06:26 潮干狩り ◎ 13:18～17:04

相浦（長崎）2038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	166.8	↓-11.5
4/20 00:10	155.4	↓-11.4
4/20 00:20	144.1	↓-11.3
4/20 00:30	133.0	↓-11.1
4/20 00:40	122.3	↓-10.7
4/20 00:50	111.8	↓-10.5
4/20 01:00	101.9	↓-9.9
4/20 01:10	92.4	↓-9.5
4/20 01:20	83.6	↓-8.8
4/20 01:30	75.4	↓-8.2
4/20 01:40	67.9	↓-7.5
4/20 01:50	61.2	↓-6.7
4/20 02:00	55.3	↓-5.9
4/20 02:10	50.3	↓-5.0
4/20 02:20	46.2	↓-4.1
4/20 02:30	43.0	↓-3.2
4/20 02:40	40.7	↓-2.3
4/20 02:50	39.5	↓-1.2	干潮
4/20 03:00	39.2	↓-0.3
4/20 03:10	39.9	↑0.7
4/20 03:20	41.6	↑1.7
4/20 03:30	44.3	↑2.7
4/20 03:40	47.9	↑3.6
4/20 03:50	52.4	↑4.5
4/20 04:00	57.8	↑5.4
4/20 04:10	64.0	↑6.2
4/20 04:20	71.0	↑7.0
4/20 04:30	78.8	↑7.8
4/20 04:40	87.2	↑8.4
4/20 04:50	96.3	↑9.1
4/20 05:00	105.9	↑9.6
4/20 05:10	116.0	↑10.1
4/20 05:20	126.5	↑10.5
4/20 05:30	137.3	↑10.8
4/20 05:40	148.4	↑11.1
4/20 05:50	159.6	↑11.2
4/20 06:00	170.9	↑11.3
4/20 06:10	182.2	↑11.3
4/20 06:20	193.3	↑11.1
4/20 06:30	204.3	↑11.0
4/20 06:40	215.0	↑10.7
4/20 06:50	225.4	↑10.4
4/20 07:00	235.3	↑9.9
4/20 07:10	244.8	↑9.5
4/20 07:20	253.6	↑8.8
4/20 07:30	261.8	↑8.2
4/20 07:40	269.3	↑7.5
4/20 07:50	276.0	↑6.7
4/20 08:00	281.9	↑5.9
4/20 08:10	287.0	↑5.1
4/20 08:20	291.1	↑4.1
4/20 08:30	294.3	↑3.2
4/20 08:40	296.5	↑2.2
4/20 08:50	297.7	↑1.2	満潮
4/20 09:00	297.9	↑0.2
4/20 09:10	297.1	↓-0.8
4/20 09:20	295.2	↓-1.9
4/20 09:30	292.4	↓-2.8
4/20 09:40	288.6	↓-3.8
4/20 09:50	283.9	↓-4.7
4/20 10:00	278.2	↓-5.7
4/20 10:10	271.6	↓-6.6
4/20 10:20	264.2	↓-7.4
4/20 10:30	255.9	↓-8.3
4/20 10:40	247.0	↓-8.9
4/20 10:50	237.3	↓-9.7
4/20 11:00	227.1	↓-10.2
4/20 11:10	216.3	↓-10.8
4/20 11:20	205.1	↓-11.2
4/20 11:30	193.4	↓-11.7
4/20 11:40	181.5	↓-11.9
4/20 11:50	169.3	↓-12.2
4/20 12:00	157.0	↓-12.3
4/20 12:10	144.7	↓-12.3
4/20 12:20	132.4	↓-12.3
4/20 12:30	120.2	↓-12.2
4/20 12:40	108.3	↓-11.9
4/20 12:50	96.6	↓-11.7
4/20 13:00	85.4	↓-11.2
4/20 13:10	74.6	↓-10.8
4/20 13:20	64.3	↓-10.3
4/20 13:30	54.7	↓-9.6
4/20 13:40	45.7	↓-9.0
4/20 13:50	37.5	↓-8.2
4/20 14:00	30.1	↓-7.4
4/20 14:10	23.6	↓-6.5
4/20 14:20	17.9	↓-5.7
4/20 14:30	13.3	↓-4.6
4/20 14:40	9.6	↓-3.7
4/20 14:50	6.9	↓-2.7
4/20 15:00	5.2	↓-1.7
4/20 15:10	4.6	↓-0.6	干潮
4/20 15:20	5.0	↑0.4
4/20 15:30	6.5	↑1.5
4/20 15:40	9.0	↑2.5
4/20 15:50	12.5	↑3.5
4/20 16:00	17.1	↑4.6
4/20 16:10	22.5	↑5.4
4/20 16:20	29.0	↑6.5
4/20 16:30	36.2	↑7.2
4/20 16:40	44.4	↑8.2
4/20 16:50	53.2	↑8.8
4/20 17:00	62.8	↑9.6
4/20 17:10	73.1	↑10.3
4/20 17:20	83.9	↑10.8
4/20 17:30	95.2	↑11.3
4/20 17:40	106.9	↑11.7
4/20 17:50	118.9	↑12.0
4/20 18:00	131.2	↑12.3
4/20 18:10	143.6	↑12.4
4/20 18:20	156.2	↑12.6	最大潮位差
4/20 18:30	168.7	↑12.5
4/20 18:40	181.1	↑12.4
4/20 18:50	193.3	↑12.2
4/20 19:00	205.3	↑12.0
4/20 19:10	216.9	↑11.6
4/20 19:20	228.0	↑11.1
4/20 19:30	238.7	↑10.7
4/20 19:40	248.8	↑10.1
4/20 19:50	258.2	↑9.4
4/20 20:00	266.9	↑8.7
4/20 20:10	274.8	↑7.9
4/20 20:20	281.9	↑7.1
4/20 20:30	288.1	↑6.2
4/20 20:40	293.5	↑5.4
4/20 20:50	297.8	↑4.3
4/20 21:00	301.2	↑3.4
4/20 21:10	303.6	↑2.4
4/20 21:20	305.0	↑1.4	満潮
4/20 21:30	305.4	↑0.4	満潮
4/20 21:40	304.8	↓-0.6
4/20 21:50	303.2	↓-1.6
4/20 22:00	300.6	↓-2.6
4/20 22:10	297.1	↓-3.5
4/20 22:20	292.6	↓-4.5
4/20 22:30	287.2	↓-5.4
4/20 22:40	281.0	↓-6.2
4/20 22:50	274.0	↓-7.0
4/20 23:00	266.3	↓-7.7
4/20 23:10	257.9	↓-8.4
4/20 23:20	248.9	↓-9.0
4/20 23:30	239.3	↓-9.6
4/20 23:40	229.3	↓-10.0
4/20 23:50	218.9	↓-10.4