21 (金)	07:08	00:54	19:29	13:14
	177cm	56cm	181cm	45cm
中潮 出 05:45 入 19:00 出 03:35 入 15:47

小茂田（長崎）2028年04月21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
4/21 00:00	60.4	↓-2.2
4/21 00:10	58.6	↓-1.8
4/21 00:20	57.2	↓-1.4
4/21 00:30	56.1	↓-1.1
4/21 00:40	55.4	↓-0.7
4/21 00:50	55.1	↓-0.3	干潮
4/21 01:00	55.2	↑0.1
4/21 01:10	55.6	↑0.4
4/21 01:20	56.4	↑0.8
4/21 01:30	57.6	↑1.2
4/21 01:40	59.2	↑1.6
4/21 01:50	61.1	↑1.9
4/21 02:00	63.3	↑2.2
4/21 02:10	65.9	↑2.6
4/21 02:20	68.9	↑3.0
4/21 02:30	72.1	↑3.2
4/21 02:40	75.6	↑3.5
4/21 02:50	79.4	↑3.8
4/21 03:00	83.4	↑4.0
4/21 03:10	87.7	↑4.3
4/21 03:20	92.2	↑4.5
4/21 03:30	96.8	↑4.6
4/21 03:40	101.7	↑4.9
4/21 03:50	106.6	↑4.9
4/21 04:00	111.6	↑5.0
4/21 04:10	116.7	↑5.1
4/21 04:20	121.8	↑5.1
4/21 04:30	126.9	↑5.1
4/21 04:40	131.9	↑5.0
4/21 04:50	136.8	↑4.9
4/21 05:00	141.6	↑4.8
4/21 05:10	146.2	↑4.6
4/21 05:20	150.7	↑4.5
4/21 05:30	154.9	↑4.2
4/21 05:40	158.8	↑3.9
4/21 05:50	162.3	↑3.5
4/21 06:00	165.6	↑3.3
4/21 06:10	168.4	↑2.8
4/21 06:20	170.9	↑2.5
4/21 06:30	172.9	↑2.0
4/21 06:40	174.4	↑1.5
4/21 06:50	175.5	↑1.1
4/21 07:00	176.1	↑0.6	満潮
4/21 07:10	176.2	↑0.1
4/21 07:20	175.7	↓-0.5
4/21 07:30	174.8	↓-0.9
4/21 07:40	173.4	↓-1.4
4/21 07:50	171.5	↓-1.9
4/21 08:00	169.1	↓-2.4
4/21 08:10	166.3	↓-2.8
4/21 08:20	163.0	↓-3.3
4/21 08:30	159.3	↓-3.7
4/21 08:40	155.3	↓-4.0
4/21 08:50	150.9	↓-4.4
4/21 09:00	146.2	↓-4.7
4/21 09:10	141.2	↓-5.0
4/21 09:20	136.0	↓-5.2
4/21 09:30	130.6	↓-5.4
4/21 09:40	125.0	↓-5.6
4/21 09:50	119.4	↓-5.6
4/21 10:00	113.7	↓-5.7
4/21 10:10	108.0	↓-5.7
4/21 10:20	102.4	↓-5.6
4/21 10:30	96.8	↓-5.6
4/21 10:40	91.3	↓-5.5
4/21 10:50	86.0	↓-5.3
4/21 11:00	80.9	↓-5.1
4/21 11:10	76.1	↓-4.8
4/21 11:20	71.5	↓-4.6
4/21 11:30	67.1	↓-4.4
4/21 11:40	63.2	↓-3.9
4/21 11:50	59.5	↓-3.7
4/21 12:00	56.2	↓-3.3
4/21 12:10	53.3	↓-2.9
4/21 12:20	50.8	↓-2.5
4/21 12:30	48.7	↓-2.1
4/21 12:40	47.1	↓-1.6
4/21 12:50	45.8	↓-1.3
4/21 13:00	45.0	↓-0.8
4/21 13:10	44.6	↓-0.4	干潮
4/21 13:20	44.7	↑0.1
4/21 13:30	45.2	↑0.5
4/21 13:40	46.2	↑1.0
4/21 13:50	47.5	↑1.3
4/21 14:00	49.3	↑1.8
4/21 14:10	51.5	↑2.2
4/21 14:20	54.1	↑2.6
4/21 14:30	57.0	↑2.9
4/21 14:40	60.3	↑3.3
4/21 14:50	64.0	↑3.7
4/21 15:00	68.0	↑4.0
4/21 15:10	72.3	↑4.3
4/21 15:20	76.8	↑4.5
4/21 15:30	81.7	↑4.9
4/21 15:40	86.7	↑5.0
4/21 15:50	91.9	↑5.2
4/21 16:00	97.3	↑5.4
4/21 16:10	102.9	↑5.6
4/21 16:20	108.5	↑5.6
4/21 16:30	114.2	↑5.7
4/21 16:40	119.8	↑5.6
4/21 16:50	125.5	↑5.7
4/21 17:00	131.1	↑5.6
4/21 17:10	136.6	↑5.5
4/21 17:20	141.9	↑5.3
4/21 17:30	147.0	↑5.1
4/21 17:40	151.9	↑4.9
4/21 17:50	156.5	↑4.6
4/21 18:00	160.9	↑4.4
4/21 18:10	164.8	↑3.9
4/21 18:20	168.4	↑3.6
4/21 18:30	171.5	↑3.1
4/21 18:40	174.2	↑2.7
4/21 18:50	176.5	↑2.3
4/21 19:00	178.2	↑1.7
4/21 19:10	179.4	↑1.2
4/21 19:20	180.1	↑0.7	満潮
4/21 19:30	180.2	↑0.1
4/21 19:40	179.8	↓-0.4
4/21 19:50	178.9	↓-0.9
4/21 20:00	177.4	↓-1.5
4/21 20:10	175.4	↓-2.0
4/21 20:20	172.9	↓-2.5
4/21 20:30	169.9	↓-3.0
4/21 20:40	166.5	↓-3.4
4/21 20:50	162.6	↓-3.9
4/21 21:00	158.3	↓-4.3
4/21 21:10	153.7	↓-4.6
4/21 21:20	148.7	↓-5.0
4/21 21:30	143.5	↓-5.2
4/21 21:40	138.0	↓-5.5
4/21 21:50	132.3	↓-5.7
4/21 22:00	126.5	↓-5.8
4/21 22:10	120.7	↓-5.8
4/21 22:20	114.7	↓-6.0	最大潮位差
4/21 22:30	108.8	↓-5.9
4/21 22:40	103.0	↓-5.8
4/21 22:50	97.2	↓-5.8
4/21 23:00	91.6	↓-5.6
4/21 23:10	86.2	↓-5.4
4/21 23:20	81.0	↓-5.2
4/21 23:30	76.0	↓-5.0
4/21 23:40	71.4	↓-4.6
4/21 23:50	67.1	↓-4.3