20 (木)	07:49	01:23	19:22	13:23
	162cm	-15cm	192cm	46cm
大潮 出 07:09 入 18:37 出 07:12 入 18:35

長山（沖縄）2042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	4.2	↓-4.9
2/20 00:10	-0.3	↓-4.5
2/20 00:20	-4.2	↓-3.9
2/20 00:30	-7.5	↓-3.3
2/20 00:40	-10.3	↓-2.8
2/20 00:50	-12.6	↓-2.3
2/20 01:00	-14.2	↓-1.6
2/20 01:10	-15.2	↓-1.0
2/20 01:20	-15.7	↓-0.5	干潮
2/20 01:30	-15.5	↑0.2
2/20 01:40	-14.7	↑0.8
2/20 01:50	-13.3	↑1.4
2/20 02:00	-11.4	↑1.9
2/20 02:10	-8.8	↑2.6
2/20 02:20	-5.7	↑3.1
2/20 02:30	-2.1	↑3.6
2/20 02:40	2.0	↑4.1
2/20 02:50	6.6	↑4.6
2/20 03:00	11.7	↑5.1
2/20 03:10	17.2	↑5.5
2/20 03:20	23.0	↑5.8
2/20 03:30	29.2	↑6.2
2/20 03:40	35.6	↑6.4
2/20 03:50	42.4	↑6.8
2/20 04:00	49.3	↑6.9
2/20 04:10	56.3	↑7.0
2/20 04:20	63.5	↑7.2
2/20 04:30	70.8	↑7.3
2/20 04:40	78.0	↑7.2
2/20 04:50	85.2	↑7.2
2/20 05:00	92.3	↑7.1
2/20 05:10	99.3	↑7.0
2/20 05:20	106.1	↑6.8
2/20 05:30	112.7	↑6.6
2/20 05:40	119.0	↑6.3
2/20 05:50	125.0	↑6.0
2/20 06:00	130.6	↑5.6
2/20 06:10	135.8	↑5.2
2/20 06:20	140.7	↑4.9
2/20 06:30	145.0	↑4.3
2/20 06:40	149.0	↑4.0
2/20 06:50	152.4	↑3.4
2/20 07:00	155.3	↑2.9
2/20 07:10	157.6	↑2.3
2/20 07:20	159.4	↑1.8
2/20 07:30	160.7	↑1.3
2/20 07:40	161.4	↑0.7	満潮
2/20 07:50	161.6	↑0.2
2/20 08:00	161.2	↓-0.4
2/20 08:10	160.3	↓-0.9
2/20 08:20	158.9	↓-1.4
2/20 08:30	157.0	↓-1.9
2/20 08:40	154.6	↓-2.4
2/20 08:50	151.8	↓-2.8
2/20 09:00	148.5	↓-3.3
2/20 09:10	144.9	↓-3.6
2/20 09:20	140.9	↓-4.0
2/20 09:30	136.5	↓-4.4
2/20 09:40	131.9	↓-4.6
2/20 09:50	127.0	↓-4.9
2/20 10:00	122.0	↓-5.0
2/20 10:10	116.8	↓-5.2
2/20 10:20	111.5	↓-5.3
2/20 10:30	106.1	↓-5.4
2/20 10:40	100.7	↓-5.4
2/20 10:50	95.3	↓-5.4
2/20 11:00	90.1	↓-5.2
2/20 11:10	84.9	↓-5.2
2/20 11:20	79.9	↓-5.0
2/20 11:30	75.1	↓-4.8
2/20 11:40	70.6	↓-4.5
2/20 11:50	66.3	↓-4.3
2/20 12:00	62.4	↓-3.9
2/20 12:10	58.8	↓-3.6
2/20 12:20	55.6	↓-3.2
2/20 12:30	52.8	↓-2.8
2/20 12:40	50.5	↓-2.3
2/20 12:50	48.6	↓-1.9
2/20 13:00	47.3	↓-1.3
2/20 13:10	46.4	↓-0.9
2/20 13:20	46.0	↓-0.4	干潮
2/20 13:30	46.1	↑0.1
2/20 13:40	46.8	↑0.7
2/20 13:50	48.0	↑1.2
2/20 14:00	49.7	↑1.7
2/20 14:10	51.9	↑2.2
2/20 14:20	54.5	↑2.6
2/20 14:30	57.7	↑3.2
2/20 14:40	61.3	↑3.6
2/20 14:50	65.3	↑4.0
2/20 15:00	69.8	↑4.5
2/20 15:10	74.6	↑4.8
2/20 15:20	79.8	↑5.2
2/20 15:30	85.2	↑5.4
2/20 15:40	90.9	↑5.7
2/20 15:50	96.9	↑6.0
2/20 16:00	103.0	↑6.1
2/20 16:10	109.2	↑6.2
2/20 16:20	115.5	↑6.3
2/20 16:30	121.9	↑6.4
2/20 16:40	128.3	↑6.4
2/20 16:50	134.6	↑6.3
2/20 17:00	140.7	↑6.1
2/20 17:10	146.8	↑6.1
2/20 17:20	152.6	↑5.8
2/20 17:30	158.2	↑5.6
2/20 17:40	163.4	↑5.2
2/20 17:50	168.4	↑5.0
2/20 18:00	172.9	↑4.5
2/20 18:10	177.0	↑4.1
2/20 18:20	180.7	↑3.7
2/20 18:30	183.9	↑3.2
2/20 18:40	186.6	↑2.7
2/20 18:50	188.7	↑2.1
2/20 19:00	190.3	↑1.6
2/20 19:10	191.3	↑1.0
2/20 19:20	191.6	↑0.3	満潮
2/20 19:30	191.4	↓-0.2
2/20 19:40	190.6	↓-0.8
2/20 19:50	189.1	↓-1.5
2/20 20:00	187.1	↓-2.0
2/20 20:10	184.4	↓-2.7
2/20 20:20	181.1	↓-3.3
2/20 20:30	177.3	↓-3.8
2/20 20:40	172.9	↓-4.4
2/20 20:50	168.0	↓-4.9
2/20 21:00	162.6	↓-5.4
2/20 21:10	156.7	↓-5.9
2/20 21:20	150.4	↓-6.3
2/20 21:30	143.7	↓-6.7
2/20 21:40	136.6	↓-7.1
2/20 21:50	129.2	↓-7.4
2/20 22:00	121.6	↓-7.6
2/20 22:10	113.7	↓-7.9
2/20 22:20	105.7	↓-8.0
2/20 22:30	97.6	↓-8.1
2/20 22:40	89.4	↓-8.2
2/20 22:50	81.1	↓-8.3	最大潮位差
2/20 23:00	73.0	↓-8.1
2/20 23:10	64.9	↓-8.1
2/20 23:20	56.9	↓-8.0
2/20 23:30	49.2	↓-7.7
2/20 23:40	41.7	↓-7.5
2/20 23:50	34.5	↓-7.2