20 (日)	07:38	01:41	20:13	13:51
	169cm	40cm	177cm	22cm
大潮 出 06:19 入 19:12 出 06:16 入 19:28 潮干狩り ○ 12:23～15:19

黄尾嶼（沖縄）2042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	63.3	↓-4.5
4/20 00:10	59.0	↓-4.3
4/20 00:20	55.1	↓-3.9
4/20 00:30	51.7	↓-3.4
4/20 00:40	48.6	↓-3.1
4/20 00:50	45.9	↓-2.7
4/20 01:00	43.8	↓-2.1
4/20 01:10	42.1	↓-1.7
4/20 01:20	40.8	↓-1.3
4/20 01:30	40.1	↓-0.7
4/20 01:40	39.9	↓-0.2	干潮
4/20 01:50	40.1	↑0.2
4/20 02:00	40.9	↑0.8
4/20 02:10	42.2	↑1.3
4/20 02:20	43.9	↑1.7
4/20 02:30	46.1	↑2.2
4/20 02:40	48.7	↑2.6
4/20 02:50	51.8	↑3.1
4/20 03:00	55.2	↑3.4
4/20 03:10	59.1	↑3.9
4/20 03:20	63.3	↑4.2
4/20 03:30	67.8	↑4.5
4/20 03:40	72.6	↑4.8
4/20 03:50	77.6	↑5.0
4/20 04:00	82.8	↑5.2
4/20 04:10	88.3	↑5.5
4/20 04:20	93.8	↑5.5
4/20 04:30	99.4	↑5.6
4/20 04:40	105.0	↑5.6
4/20 04:50	110.7	↑5.7
4/20 05:00	116.3	↑5.6
4/20 05:10	121.8	↑5.5
4/20 05:20	127.1	↑5.3
4/20 05:30	132.3	↑5.2
4/20 05:40	137.3	↑5.0
4/20 05:50	142.1	↑4.8
4/20 06:00	146.5	↑4.4
4/20 06:10	150.6	↑4.1
4/20 06:20	154.4	↑3.8
4/20 06:30	157.8	↑3.4
4/20 06:40	160.7	↑2.9
4/20 06:50	163.2	↑2.5
4/20 07:00	165.3	↑2.1
4/20 07:10	166.9	↑1.6
4/20 07:20	168.0	↑1.1
4/20 07:30	168.6	↑0.6	満潮
4/20 07:40	168.7	↑0.1
4/20 07:50	168.3	↓-0.4
4/20 08:00	167.4	↓-0.9
4/20 08:10	166.0	↓-1.4
4/20 08:20	164.1	↓-1.9
4/20 08:30	161.7	↓-2.4
4/20 08:40	158.8	↓-2.9
4/20 08:50	155.5	↓-3.3
4/20 09:00	151.8	↓-3.7
4/20 09:10	147.6	↓-4.2
4/20 09:20	143.1	↓-4.5
4/20 09:30	138.3	↓-4.8
4/20 09:40	133.1	↓-5.2
4/20 09:50	127.7	↓-5.4
4/20 10:00	122.0	↓-5.7
4/20 10:10	116.2	↓-5.8
4/20 10:20	110.2	↓-6.0
4/20 10:30	104.0	↓-6.2
4/20 10:40	97.8	↓-6.2
4/20 10:50	91.6	↓-6.2
4/20 11:00	85.4	↓-6.2
4/20 11:10	79.3	↓-6.1
4/20 11:20	73.3	↓-6.0
4/20 11:30	67.4	↓-5.9
4/20 11:40	61.8	↓-5.6
4/20 11:50	56.3	↓-5.5
4/20 12:00	51.2	↓-5.1
4/20 12:10	46.3	↓-4.9
4/20 12:20	41.8	↓-4.5
4/20 12:30	37.7	↓-4.1
4/20 12:40	34.0	↓-3.7
4/20 12:50	30.7	↓-3.3
4/20 13:00	27.9	↓-2.8
4/20 13:10	25.5	↓-2.4
4/20 13:20	23.7	↓-1.8
4/20 13:30	22.3	↓-1.4
4/20 13:40	21.5	↓-0.8
4/20 13:50	21.2	↓-0.3	干潮
4/20 14:00	21.5	↑0.3
4/20 14:10	22.3	↑0.8
4/20 14:20	23.5	↑1.2
4/20 14:30	25.4	↑1.9
4/20 14:40	27.7	↑2.3
4/20 14:50	30.5	↑2.8
4/20 15:00	33.7	↑3.2
4/20 15:10	37.5	↑3.8
4/20 15:20	41.6	↑4.1
4/20 15:30	46.1	↑4.5
4/20 15:40	51.0	↑4.9
4/20 15:50	56.2	↑5.2
4/20 16:00	61.7	↑5.5
4/20 16:10	67.5	↑5.8
4/20 16:20	73.4	↑5.9
4/20 16:30	79.6	↑6.2
4/20 16:40	85.9	↑6.3
4/20 16:50	92.2	↑6.3
4/20 17:00	98.6	↑6.4	最大潮位差
4/20 17:10	105.0	↑6.4	最大潮位差
4/20 17:20	111.4	↑6.4	最大潮位差
4/20 17:30	117.6	↑6.2
4/20 17:40	123.7	↑6.1
4/20 17:50	129.7	↑6.0
4/20 18:00	135.4	↑5.7
4/20 18:10	140.9	↑5.5
4/20 18:20	146.1	↑5.2
4/20 18:30	151.0	↑4.9
4/20 18:40	155.5	↑4.5
4/20 18:50	159.6	↑4.1
4/20 19:00	163.3	↑3.7
4/20 19:10	166.6	↑3.3
4/20 19:20	169.4	↑2.8
4/20 19:30	171.7	↑2.3
4/20 19:40	173.6	↑1.9
4/20 19:50	174.9	↑1.3
4/20 20:00	175.8	↑0.9
4/20 20:10	176.1	↑0.3	満潮
4/20 20:20	176.0	↓-0.1
4/20 20:30	175.3	↓-0.7
4/20 20:40	174.2	↓-1.1
4/20 20:50	172.5	↓-1.7
4/20 21:00	170.4	↓-2.1
4/20 21:10	167.9	↓-2.5
4/20 21:20	164.9	↓-3.0
4/20 21:30	161.5	↓-3.4
4/20 21:40	157.8	↓-3.7
4/20 21:50	153.7	↓-4.1
4/20 22:00	149.3	↓-4.4
4/20 22:10	144.6	↓-4.7
4/20 22:20	139.7	↓-4.9
4/20 22:30	134.6	↓-5.1
4/20 22:40	129.3	↓-5.3
4/20 22:50	123.9	↓-5.4
4/20 23:00	118.5	↓-5.4
4/20 23:10	113.0	↓-5.5
4/20 23:20	107.5	↓-5.5
4/20 23:30	102.1	↓-5.4
4/20 23:40	96.7	↓-5.4
4/20 23:50	91.5	↓-5.2