20 (日)	07:55	01:29	19:26	13:30
	159cm	-7cm	184cm	50cm
大潮 出 07:09 入 18:37 出 07:16 入 18:41

長山（沖縄）2061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	13.5	↓-4.8
2/20 00:10	9.1	↓-4.4
2/20 00:20	5.2	↓-3.9
2/20 00:30	1.7	↓-3.5
2/20 00:40	-1.2	↓-2.9
2/20 00:50	-3.6	↓-2.4
2/20 01:00	-5.4	↓-1.8
2/20 01:10	-6.7	↓-1.3
2/20 01:20	-7.4	↓-0.7	干潮
2/20 01:30	-7.6	↓-0.2
2/20 01:40	-7.2	↑0.4
2/20 01:50	-6.2	↑1.0
2/20 02:00	-4.7	↑1.5
2/20 02:10	-2.7	↑2.0
2/20 02:20	-0.1	↑2.6
2/20 02:30	3.0	↑3.1
2/20 02:40	6.6	↑3.6
2/20 02:50	10.7	↑4.1
2/20 03:00	15.2	↑4.5
2/20 03:10	20.1	↑4.9
2/20 03:20	25.4	↑5.3
2/20 03:30	31.0	↑5.6
2/20 03:40	36.9	↑5.9
2/20 03:50	43.1	↑6.2
2/20 04:00	49.4	↑6.3
2/20 04:10	56.0	↑6.6
2/20 04:20	62.7	↑6.7
2/20 04:30	69.4	↑6.7
2/20 04:40	76.2	↑6.8
2/20 04:50	83.0	↑6.8
2/20 05:00	89.7	↑6.7
2/20 05:10	96.4	↑6.7
2/20 05:20	102.9	↑6.5
2/20 05:30	109.2	↑6.3
2/20 05:40	115.2	↑6.0
2/20 05:50	121.0	↑5.8
2/20 06:00	126.5	↑5.5
2/20 06:10	131.7	↑5.2
2/20 06:20	136.4	↑4.7
2/20 06:30	140.8	↑4.4
2/20 06:40	144.7	↑3.9
2/20 06:50	148.2	↑3.5
2/20 07:00	151.2	↑3.0
2/20 07:10	153.7	↑2.5
2/20 07:20	155.7	↑2.0
2/20 07:30	157.2	↑1.5
2/20 07:40	158.2	↑1.0
2/20 07:50	158.7	↑0.5	満潮
2/20 08:00	158.7	0
2/20 08:10	158.1	↓-0.6
2/20 08:20	157.1	↓-1.0
2/20 08:30	155.5	↓-1.6
2/20 08:40	153.5	↓-2.0
2/20 08:50	151.1	↓-2.4
2/20 09:00	148.3	↓-2.8
2/20 09:10	145.0	↓-3.3
2/20 09:20	141.4	↓-3.6
2/20 09:30	137.5	↓-3.9
2/20 09:40	133.3	↓-4.2
2/20 09:50	128.9	↓-4.4
2/20 10:00	124.2	↓-4.7
2/20 10:10	119.4	↓-4.8
2/20 10:20	114.4	↓-5.0
2/20 10:30	109.4	↓-5.0
2/20 10:40	104.3	↓-5.1
2/20 10:50	99.2	↓-5.1
2/20 11:00	94.2	↓-5.0
2/20 11:10	89.2	↓-5.0
2/20 11:20	84.4	↓-4.8
2/20 11:30	79.7	↓-4.7
2/20 11:40	75.3	↓-4.4
2/20 11:50	71.1	↓-4.2
2/20 12:00	67.2	↓-3.9
2/20 12:10	63.6	↓-3.6
2/20 12:20	60.4	↓-3.2
2/20 12:30	57.5	↓-2.9
2/20 12:40	55.0	↓-2.5
2/20 12:50	53.0	↓-2.0
2/20 13:00	51.4	↓-1.6
2/20 13:10	50.3	↓-1.1
2/20 13:20	49.6	↓-0.7	干潮
2/20 13:30	49.4	↓-0.2	干潮
2/20 13:40	49.7	↑0.3
2/20 13:50	50.5	↑0.8
2/20 14:00	51.8	↑1.3
2/20 14:10	53.5	↑1.7
2/20 14:20	55.7	↑2.2
2/20 14:30	58.4	↑2.7
2/20 14:40	61.5	↑3.1
2/20 14:50	65.0	↑3.5
2/20 15:00	69.0	↑4.0
2/20 15:10	73.2	↑4.2
2/20 15:20	77.8	↑4.6
2/20 15:30	82.7	↑4.9
2/20 15:40	87.9	↑5.2
2/20 15:50	93.3	↑5.4
2/20 16:00	98.9	↑5.6
2/20 16:10	104.6	↑5.7
2/20 16:20	110.5	↑5.9
2/20 16:30	116.4	↑5.9
2/20 16:40	122.3	↑5.9
2/20 16:50	128.1	↑5.8
2/20 17:00	133.9	↑5.8
2/20 17:10	139.6	↑5.7
2/20 17:20	145.1	↑5.5
2/20 17:30	150.4	↑5.3
2/20 17:40	155.4	↑5.0
2/20 17:50	160.1	↑4.7
2/20 18:00	164.5	↑4.4
2/20 18:10	168.5	↑4.0
2/20 18:20	172.1	↑3.6
2/20 18:30	175.3	↑3.2
2/20 18:40	178.0	↑2.7
2/20 18:50	180.2	↑2.2
2/20 19:00	181.8	↑1.6
2/20 19:10	183.0	↑1.2
2/20 19:20	183.6	↑0.6	満潮
2/20 19:30	183.6	0
2/20 19:40	183.0	↓-0.6
2/20 19:50	181.9	↓-1.1
2/20 20:00	180.2	↓-1.7
2/20 20:10	178.0	↓-2.2
2/20 20:20	175.1	↓-2.9
2/20 20:30	171.8	↓-3.3
2/20 20:40	167.9	↓-3.9
2/20 20:50	163.5	↓-4.4
2/20 21:00	158.6	↓-4.9
2/20 21:10	153.3	↓-5.3
2/20 21:20	147.6	↓-5.7
2/20 21:30	141.5	↓-6.1
2/20 21:40	135.0	↓-6.5
2/20 21:50	128.2	↓-6.8
2/20 22:00	121.2	↓-7.0
2/20 22:10	113.9	↓-7.3
2/20 22:20	106.5	↓-7.4
2/20 22:30	98.9	↓-7.6
2/20 22:40	91.3	↓-7.6
2/20 22:50	83.6	↓-7.7	最大潮位差
2/20 23:00	76.0	↓-7.6
2/20 23:10	68.4	↓-7.6
2/20 23:20	60.9	↓-7.5
2/20 23:30	53.6	↓-7.3
2/20 23:40	46.6	↓-7.0
2/20 23:50	39.7	↓-6.9