20 (木)	08:27	02:11	20:22	14:19
	166cm	3cm	179cm	33cm
大潮 出 07:09 入 18:37 出 07:58 入 20:06 潮干狩り ○ 13:17～15:20

長山（沖縄）2053年02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
2/20 00:00	46.8	↓-6.4
2/20 00:10	40.7	↓-6.1
2/20 00:20	35.0	↓-5.7
2/20 00:30	29.6	↓-5.4
2/20 00:40	24.6	↓-5.0
2/20 00:50	20.0	↓-4.6
2/20 01:00	15.9	↓-4.1
2/20 01:10	12.3	↓-3.6
2/20 01:20	9.2	↓-3.1
2/20 01:30	6.7	↓-2.5
2/20 01:40	4.7	↓-2.0
2/20 01:50	3.3	↓-1.4
2/20 02:00	2.4	↓-0.9
2/20 02:10	2.2	↓-0.2	干潮
2/20 02:20	2.5	↑0.3
2/20 02:30	3.4	↑0.9
2/20 02:40	4.9	↑1.5
2/20 02:50	6.9	↑2.0
2/20 03:00	9.5	↑2.6
2/20 03:10	12.6	↑3.1
2/20 03:20	16.2	↑3.6
2/20 03:30	20.2	↑4.0
2/20 03:40	24.8	↑4.6
2/20 03:50	29.7	↑4.9
2/20 04:00	35.0	↑5.3
2/20 04:10	40.7	↑5.7
2/20 04:20	46.7	↑6.0
2/20 04:30	52.9	↑6.2
2/20 04:40	59.3	↑6.4
2/20 04:50	65.9	↑6.6
2/20 05:00	72.7	↑6.8
2/20 05:10	79.5	↑6.8
2/20 05:20	86.3	↑6.8
2/20 05:30	93.1	↑6.8
2/20 05:40	99.9	↑6.8
2/20 05:50	106.5	↑6.6
2/20 06:00	113.0	↑6.5
2/20 06:10	119.2	↑6.2
2/20 06:20	125.2	↑6.0
2/20 06:30	131.0	↑5.8
2/20 06:40	136.4	↑5.4
2/20 06:50	141.4	↑5.0
2/20 07:00	146.0	↑4.6
2/20 07:10	150.2	↑4.2
2/20 07:20	153.9	↑3.7
2/20 07:30	157.2	↑3.3
2/20 07:40	159.9	↑2.7
2/20 07:50	162.2	↑2.3
2/20 08:00	163.9	↑1.7
2/20 08:10	165.0	↑1.1
2/20 08:20	165.6	↑0.6	満潮
2/20 08:30	165.7	↑0.1
2/20 08:40	165.2	↓-0.5
2/20 08:50	164.1	↓-1.1
2/20 09:00	162.6	↓-1.5
2/20 09:10	160.5	↓-2.1
2/20 09:20	158.0	↓-2.5
2/20 09:30	154.9	↓-3.1
2/20 09:40	151.5	↓-3.4
2/20 09:50	147.6	↓-3.9
2/20 10:00	143.3	↓-4.3
2/20 10:10	138.6	↓-4.7
2/20 10:20	133.7	↓-4.9
2/20 10:30	128.5	↓-5.2
2/20 10:40	123.0	↓-5.5
2/20 10:50	117.4	↓-5.6
2/20 11:00	111.6	↓-5.8
2/20 11:10	105.8	↓-5.8
2/20 11:20	99.8	↓-6.0
2/20 11:30	93.9	↓-5.9
2/20 11:40	88.0	↓-5.9
2/20 11:50	82.2	↓-5.8
2/20 12:00	76.5	↓-5.7
2/20 12:10	71.0	↓-5.5
2/20 12:20	65.7	↓-5.3
2/20 12:30	60.7	↓-5.0
2/20 12:40	56.0	↓-4.7
2/20 12:50	51.6	↓-4.4
2/20 13:00	47.6	↓-4.0
2/20 13:10	44.0	↓-3.6
2/20 13:20	40.9	↓-3.1
2/20 13:30	38.2	↓-2.7
2/20 13:40	35.9	↓-2.3
2/20 13:50	34.2	↓-1.7
2/20 14:00	33.0	↓-1.2
2/20 14:10	32.3	↓-0.7	干潮
2/20 14:20	32.1	↓-0.2
2/20 14:30	32.5	↑0.4
2/20 14:40	33.4	↑0.9
2/20 14:50	34.8	↑1.4
2/20 15:00	36.8	↑2.0
2/20 15:10	39.2	↑2.4
2/20 15:20	42.2	↑3.0
2/20 15:30	45.6	↑3.4
2/20 15:40	49.4	↑3.8
2/20 15:50	53.7	↑4.3
2/20 16:00	58.3	↑4.6
2/20 16:10	63.3	↑5.0
2/20 16:20	68.7	↑5.4
2/20 16:30	74.2	↑5.5
2/20 16:40	80.1	↑5.9
2/20 16:50	86.1	↑6.0
2/20 17:00	92.2	↑6.1
2/20 17:10	98.5	↑6.3
2/20 17:20	104.8	↑6.3
2/20 17:30	111.1	↑6.3
2/20 17:40	117.4	↑6.3
2/20 17:50	123.6	↑6.2
2/20 18:00	129.6	↑6.0
2/20 18:10	135.5	↑5.9
2/20 18:20	141.1	↑5.6
2/20 18:30	146.5	↑5.4
2/20 18:40	151.6	↑5.1
2/20 18:50	156.3	↑4.7
2/20 19:00	160.6	↑4.3
2/20 19:10	164.6	↑4.0
2/20 19:20	168.0	↑3.4
2/20 19:30	171.0	↑3.0
2/20 19:40	173.5	↑2.5
2/20 19:50	175.5	↑2.0
2/20 20:00	176.9	↑1.4
2/20 20:10	177.8	↑0.9
2/20 20:20	178.2	↑0.4	満潮
2/20 20:30	177.9	↓-0.3
2/20 20:40	177.1	↓-0.8
2/20 20:50	175.7	↓-1.4
2/20 21:00	173.8	↓-1.9
2/20 21:10	171.3	↓-2.5
2/20 21:20	168.3	↓-3.0
2/20 21:30	164.8	↓-3.5
2/20 21:40	160.8	↓-4.0
2/20 21:50	156.3	↓-4.5
2/20 22:00	151.4	↓-4.9
2/20 22:10	146.0	↓-5.4
2/20 22:20	140.3	↓-5.7
2/20 22:30	134.3	↓-6.0
2/20 22:40	128.0	↓-6.3
2/20 22:50	121.4	↓-6.6
2/20 23:00	114.7	↓-6.7
2/20 23:10	107.8	↓-6.9
2/20 23:20	100.7	↓-7.1	最大潮位差
2/20 23:30	93.6	↓-7.1	最大潮位差
2/20 23:40	86.5	↓-7.1	最大潮位差
2/20 23:50	79.4	↓-7.1	最大潮位差