20 (日)	05:39	11:59	18:15	-
	178cm	19cm	176cm	-
大潮 出 05:59 入 18:54 出 04:44 入 17:36 潮干狩り ◎ 10:22～13:34

安田（沖縄）2031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	43.3	↑1.0
4/20 00:10	44.8	↑1.5
4/20 00:20	46.7	↑1.9
4/20 00:30	49.1	↑2.4
4/20 00:40	52.0	↑2.9
4/20 00:50	55.2	↑3.2
4/20 01:00	58.9	↑3.7
4/20 01:10	62.9	↑4.0
4/20 01:20	67.3	↑4.4
4/20 01:30	72.0	↑4.7
4/20 01:40	76.9	↑4.9
4/20 01:50	82.1	↑5.2
4/20 02:00	87.6	↑5.5
4/20 02:10	93.1	↑5.5
4/20 02:20	98.9	↑5.8
4/20 02:30	104.7	↑5.8
4/20 02:40	110.5	↑5.8
4/20 02:50	116.4	↑5.9
4/20 03:00	122.2	↑5.8
4/20 03:10	127.9	↑5.7
4/20 03:20	133.5	↑5.6
4/20 03:30	138.9	↑5.4
4/20 03:40	144.1	↑5.2
4/20 03:50	149.1	↑5.0
4/20 04:00	153.8	↑4.7
4/20 04:10	158.1	↑4.3
4/20 04:20	162.1	↑4.0
4/20 04:30	165.6	↑3.5
4/20 04:40	168.8	↑3.2
4/20 04:50	171.5	↑2.7
4/20 05:00	173.7	↑2.2
4/20 05:10	175.4	↑1.7
4/20 05:20	176.6	↑1.2
4/20 05:30	177.3	↑0.7	満潮
4/20 05:40	177.4	↑0.1
4/20 05:50	177.0	↓-0.4
4/20 06:00	176.1	↓-0.9
4/20 06:10	174.6	↓-1.5
4/20 06:20	172.6	↓-2.0
4/20 06:30	170.1	↓-2.5
4/20 06:40	167.2	↓-2.9
4/20 06:50	163.7	↓-3.5
4/20 07:00	159.8	↓-3.9
4/20 07:10	155.4	↓-4.4
4/20 07:20	150.7	↓-4.7
4/20 07:30	145.6	↓-5.1
4/20 07:40	140.2	↓-5.4
4/20 07:50	134.4	↓-5.8
4/20 08:00	128.5	↓-5.9
4/20 08:10	122.3	↓-6.2
4/20 08:20	116.0	↓-6.3
4/20 08:30	109.5	↓-6.5
4/20 08:40	103.0	↓-6.5
4/20 08:50	96.4	↓-6.6	最大潮位差
4/20 09:00	89.8	↓-6.6	最大潮位差
4/20 09:10	83.3	↓-6.5
4/20 09:20	76.9	↓-6.4
4/20 09:30	70.7	↓-6.2
4/20 09:40	64.6	↓-6.1
4/20 09:50	58.8	↓-5.8
4/20 10:00	53.2	↓-5.6
4/20 10:10	48.0	↓-5.2
4/20 10:20	43.1	↓-4.9
4/20 10:30	38.5	↓-4.6
4/20 10:40	34.4	↓-4.1
4/20 10:50	30.7	↓-3.7
4/20 11:00	27.5	↓-3.2
4/20 11:10	24.7	↓-2.8
4/20 11:20	22.5	↓-2.2
4/20 11:30	20.7	↓-1.8
4/20 11:40	19.5	↓-1.2
4/20 11:50	18.8	↓-0.7	干潮
4/20 12:00	18.7	↓-0.1
4/20 12:10	19.1	↑0.4
4/20 12:20	20.0	↑0.9
4/20 12:30	21.4	↑1.4
4/20 12:40	23.4	↑2.0
4/20 12:50	25.9	↑2.5
4/20 13:00	28.9	↑3.0
4/20 13:10	32.4	↑3.5
4/20 13:20	36.3	↑3.9
4/20 13:30	40.6	↑4.3
4/20 13:40	45.3	↑4.7
4/20 13:50	50.4	↑5.1
4/20 14:00	55.8	↑5.4
4/20 14:10	61.5	↑5.7
4/20 14:20	67.5	↑6.0
4/20 14:30	73.6	↑6.1
4/20 14:40	80.0	↑6.4
4/20 14:50	86.4	↑6.4
4/20 15:00	93.0	↑6.6	最大潮位差
4/20 15:10	99.5	↑6.5
4/20 15:20	106.1	↑6.6	最大潮位差
4/20 15:30	112.6	↑6.5
4/20 15:40	118.9	↑6.3
4/20 15:50	125.2	↑6.3
4/20 16:00	131.2	↑6.0
4/20 16:10	137.0	↑5.8
4/20 16:20	142.5	↑5.5
4/20 16:30	147.7	↑5.2
4/20 16:40	152.5	↑4.8
4/20 16:50	156.9	↑4.4
4/20 17:00	161.0	↑4.1
4/20 17:10	164.5	↑3.5
4/20 17:20	167.6	↑3.1
4/20 17:30	170.2	↑2.6
4/20 17:40	172.3	↑2.1
4/20 17:50	173.9	↑1.6
4/20 18:00	174.9	↑1.0
4/20 18:10	175.4	↑0.5	満潮
4/20 18:20	175.3	↓-0.1
4/20 18:30	174.7	↓-0.6
4/20 18:40	173.6	↓-1.1
4/20 18:50	172.0	↓-1.6
4/20 19:00	169.8	↓-2.2
4/20 19:10	167.2	↓-2.6
4/20 19:20	164.2	↓-3.0
4/20 19:30	160.7	↓-3.5
4/20 19:40	156.8	↓-3.9
4/20 19:50	152.5	↓-4.3
4/20 20:00	147.9	↓-4.6
4/20 20:10	143.0	↓-4.9
4/20 20:20	137.9	↓-5.1
4/20 20:30	132.5	↓-5.4
4/20 20:40	127.0	↓-5.5
4/20 20:50	121.3	↓-5.7
4/20 21:00	115.6	↓-5.7
4/20 21:10	109.8	↓-5.8
4/20 21:20	104.0	↓-5.8
4/20 21:30	98.3	↓-5.7
4/20 21:40	92.6	↓-5.7
4/20 21:50	87.1	↓-5.5
4/20 22:00	81.8	↓-5.3
4/20 22:10	76.7	↓-5.1
4/20 22:20	71.9	↓-4.8
4/20 22:30	67.3	↓-4.6
4/20 22:40	63.1	↓-4.2
4/20 22:50	59.2	↓-3.9
4/20 23:00	55.7	↓-3.5
4/20 23:10	52.7	↓-3.0
4/20 23:20	50.0	↓-2.7
4/20 23:30	47.9	↓-2.1
4/20 23:40	46.2	↓-1.7
4/20 23:50	44.9	↓-1.3