20 (火)	08:16	01:53	19:54	13:56
	162cm	-6cm	183cm	44cm
大潮 出 07:09 入 18:37 出 19:26 入 07:43

長山（沖縄）2057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	28.0	↓-5.9
2/20 00:10	22.5	↓-5.5
2/20 00:20	17.4	↓-5.1
2/20 00:30	12.8	↓-4.6
2/20 00:40	8.6	↓-4.2
2/20 00:50	4.8	↓-3.8
2/20 01:00	1.6	↓-3.2
2/20 01:10	-1.0	↓-2.6
2/20 01:20	-3.1	↓-2.1
2/20 01:30	-4.7	↓-1.6
2/20 01:40	-5.6	↓-0.9
2/20 01:50	-6.0	↓-0.4	干潮
2/20 02:00	-5.8	↑0.2
2/20 02:10	-5.0	↑0.8
2/20 02:20	-3.7	↑1.3
2/20 02:30	-1.8	↑1.9
2/20 02:40	0.7	↑2.5
2/20 02:50	3.7	↑3.0
2/20 03:00	7.1	↑3.4
2/20 03:10	11.1	↑4.0
2/20 03:20	15.6	↑4.5
2/20 03:30	20.4	↑4.8
2/20 03:40	25.7	↑5.3
2/20 03:50	31.3	↑5.6
2/20 04:00	37.2	↑5.9
2/20 04:10	43.4	↑6.2
2/20 04:20	49.8	↑6.4
2/20 04:30	56.4	↑6.6
2/20 04:40	63.2	↑6.8
2/20 04:50	70.0	↑6.8
2/20 05:00	76.9	↑6.9
2/20 05:10	83.8	↑6.9
2/20 05:20	90.6	↑6.8
2/20 05:30	97.4	↑6.8
2/20 05:40	104.0	↑6.6
2/20 05:50	110.4	↑6.4
2/20 06:00	116.6	↑6.2
2/20 06:10	122.6	↑6.0
2/20 06:20	128.2	↑5.6
2/20 06:30	133.5	↑5.3
2/20 06:40	138.4	↑4.9
2/20 06:50	142.9	↑4.5
2/20 07:00	146.9	↑4.0
2/20 07:10	150.5	↑3.6
2/20 07:20	153.6	↑3.1
2/20 07:30	156.3	↑2.7
2/20 07:40	158.4	↑2.1
2/20 07:50	159.9	↑1.5
2/20 08:00	161.0	↑1.1
2/20 08:10	161.5	↑0.5	満潮
2/20 08:20	161.5	0
2/20 08:30	160.9	↓-0.6
2/20 08:40	159.9	↓-1.0
2/20 08:50	158.3	↓-1.6
2/20 09:00	156.3	↓-2.0
2/20 09:10	153.8	↓-2.5
2/20 09:20	150.8	↓-3.0
2/20 09:30	147.5	↓-3.3
2/20 09:40	143.8	↓-3.7
2/20 09:50	139.7	↓-4.1
2/20 10:00	135.3	↓-4.4
2/20 10:10	130.7	↓-4.6
2/20 10:20	125.8	↓-4.9
2/20 10:30	120.7	↓-5.1
2/20 10:40	115.5	↓-5.2
2/20 10:50	110.1	↓-5.4
2/20 11:00	104.8	↓-5.3
2/20 11:10	99.3	↓-5.5
2/20 11:20	94.0	↓-5.3
2/20 11:30	88.7	↓-5.3
2/20 11:40	83.5	↓-5.2
2/20 11:50	78.5	↓-5.0
2/20 12:00	73.7	↓-4.8
2/20 12:10	69.1	↓-4.6
2/20 12:20	64.8	↓-4.3
2/20 12:30	60.8	↓-4.0
2/20 12:40	57.2	↓-3.6
2/20 12:50	54.0	↓-3.2
2/20 13:00	51.1	↓-2.9
2/20 13:10	48.7	↓-2.4
2/20 13:20	46.8	↓-1.9
2/20 13:30	45.3	↓-1.5
2/20 13:40	44.3	↓-1.0
2/20 13:50	43.8	↓-0.5	干潮
2/20 14:00	43.8	0
2/20 14:10	44.3	↑0.5
2/20 14:20	45.3	↑1.0
2/20 14:30	46.9	↑1.6
2/20 14:40	48.9	↑2.0
2/20 14:50	51.4	↑2.5
2/20 15:00	54.3	↑2.9
2/20 15:10	57.7	↑3.4
2/20 15:20	61.5	↑3.8
2/20 15:30	65.7	↑4.2
2/20 15:40	70.3	↑4.6
2/20 15:50	75.1	↑4.8
2/20 16:00	80.3	↑5.2
2/20 16:10	85.8	↑5.5
2/20 16:20	91.4	↑5.6
2/20 16:30	97.2	↑5.8
2/20 16:40	103.2	↑6.0
2/20 16:50	109.2	↑6.0
2/20 17:00	115.3	↑6.1
2/20 17:10	121.3	↑6.0
2/20 17:20	127.3	↑6.0
2/20 17:30	133.2	↑5.9
2/20 17:40	139.0	↑5.8
2/20 17:50	144.6	↑5.6
2/20 18:00	149.9	↑5.3
2/20 18:10	154.9	↑5.0
2/20 18:20	159.7	↑4.8
2/20 18:30	164.1	↑4.4
2/20 18:40	168.0	↑3.9
2/20 18:50	171.6	↑3.6
2/20 19:00	174.7	↑3.1
2/20 19:10	177.3	↑2.6
2/20 19:20	179.4	↑2.1
2/20 19:30	181.0	↑1.6
2/20 19:40	182.0	↑1.0
2/20 19:50	182.5	↑0.5	満潮
2/20 20:00	182.4	↓-0.1
2/20 20:10	181.7	↓-0.7
2/20 20:20	180.5	↓-1.2
2/20 20:30	178.6	↓-1.9
2/20 20:40	176.3	↓-2.3
2/20 20:50	173.3	↓-3.0
2/20 21:00	169.9	↓-3.4
2/20 21:10	165.9	↓-4.0
2/20 21:20	161.4	↓-4.5
2/20 21:30	156.4	↓-5.0
2/20 21:40	151.0	↓-5.4
2/20 21:50	145.3	↓-5.7
2/20 22:00	139.1	↓-6.2
2/20 22:10	132.6	↓-6.5
2/20 22:20	125.8	↓-6.8
2/20 22:30	118.8	↓-7.0
2/20 22:40	111.6	↓-7.2
2/20 22:50	104.2	↓-7.4
2/20 23:00	96.7	↓-7.5
2/20 23:10	89.2	↓-7.5
2/20 23:20	81.6	↓-7.6	最大潮位差
2/20 23:30	74.1	↓-7.5
2/20 23:40	66.7	↓-7.4
2/20 23:50	59.5	↓-7.2