20 (日)	05:18	09:44	15:33	23:05
	117cm	100cm	139cm	29cm
長潮 出 07:10 入 18:37 出 03:31 入 14:07

長山（沖縄）2028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	53.6	↑2.3
2/20 00:10	55.9	↑2.3
2/20 00:20	58.4	↑2.5
2/20 00:30	60.9	↑2.5
2/20 00:40	63.5	↑2.6
2/20 00:50	66.3	↑2.8
2/20 01:00	69.0	↑2.7
2/20 01:10	71.8	↑2.8
2/20 01:20	74.7	↑2.9
2/20 01:30	77.5	↑2.8
2/20 01:40	80.4	↑2.9
2/20 01:50	83.2	↑2.8
2/20 02:00	86.0	↑2.8
2/20 02:10	88.7	↑2.7
2/20 02:20	91.4	↑2.7
2/20 02:30	93.9	↑2.5
2/20 02:40	96.4	↑2.5
2/20 02:50	98.8	↑2.4
2/20 03:00	101.0	↑2.2
2/20 03:10	103.2	↑2.2
2/20 03:20	105.1	↑1.9
2/20 03:30	107.0	↑1.9
2/20 03:40	108.6	↑1.6
2/20 03:50	110.2	↑1.6
2/20 04:00	111.5	↑1.3
2/20 04:10	112.7	↑1.2
2/20 04:20	113.7	↑1.0
2/20 04:30	114.5	↑0.8
2/20 04:40	115.2	↑0.7
2/20 04:50	115.7	↑0.5
2/20 05:00	116.0	↑0.3
2/20 05:10	116.2	↑0.2	満潮
2/20 05:20	116.2	0
2/20 05:30	116.1	↓-0.1
2/20 05:40	115.8	↓-0.3
2/20 05:50	115.5	↓-0.3
2/20 06:00	115.0	↓-0.5
2/20 06:10	114.4	↓-0.6
2/20 06:20	113.7	↓-0.7
2/20 06:30	113.0	↓-0.7
2/20 06:40	112.2	↓-0.8
2/20 06:50	111.3	↓-0.9
2/20 07:00	110.4	↓-0.9
2/20 07:10	109.4	↓-1.0
2/20 07:20	108.5	↓-0.9
2/20 07:30	107.5	↓-1.0
2/20 07:40	106.6	↓-0.9
2/20 07:50	105.7	↓-0.9
2/20 08:00	104.8	↓-0.9
2/20 08:10	103.9	↓-0.9
2/20 08:20	103.1	↓-0.8
2/20 08:30	102.4	↓-0.7
2/20 08:40	101.7	↓-0.7
2/20 08:50	101.1	↓-0.6
2/20 09:00	100.6	↓-0.5
2/20 09:10	100.2	↓-0.4
2/20 09:20	99.9	↓-0.3
2/20 09:30	99.7	↓-0.2
2/20 09:40	99.6	↓-0.1	干潮
2/20 09:50	99.6	0
2/20 10:00	99.7	↑0.1
2/20 10:10	100.0	↑0.3
2/20 10:20	100.4	↑0.4
2/20 10:30	100.9	↑0.5
2/20 10:40	101.5	↑0.6
2/20 10:50	102.3	↑0.8
2/20 11:00	103.1	↑0.8
2/20 11:10	104.1	↑1.0
2/20 11:20	105.2	↑1.1
2/20 11:30	106.4	↑1.2
2/20 11:40	107.7	↑1.3
2/20 11:50	109.1	↑1.4
2/20 12:00	110.6	↑1.5
2/20 12:10	112.1	↑1.5
2/20 12:20	113.8	↑1.7
2/20 12:30	115.4	↑1.6
2/20 12:40	117.2	↑1.8
2/20 12:50	118.9	↑1.7
2/20 13:00	120.7	↑1.8
2/20 13:10	122.4	↑1.7
2/20 13:20	124.2	↑1.8
2/20 13:30	125.9	↑1.7
2/20 13:40	127.6	↑1.7
2/20 13:50	129.2	↑1.6
2/20 14:00	130.7	↑1.5
2/20 14:10	132.2	↑1.5
2/20 14:20	133.5	↑1.3
2/20 14:30	134.7	↑1.2
2/20 14:40	135.8	↑1.1
2/20 14:50	136.7	↑0.9
2/20 15:00	137.4	↑0.7
2/20 15:10	138.0	↑0.6
2/20 15:20	138.3	↑0.3
2/20 15:30	138.5	↑0.2	満潮
2/20 15:40	138.4	↓-0.1
2/20 15:50	138.2	↓-0.2
2/20 16:00	137.6	↓-0.6
2/20 16:10	136.9	↓-0.7
2/20 16:20	135.9	↓-1.0
2/20 16:30	134.7	↓-1.2
2/20 16:40	133.2	↓-1.5
2/20 16:50	131.6	↓-1.6
2/20 17:00	129.6	↓-2.0
2/20 17:10	127.5	↓-2.1
2/20 17:20	125.1	↓-2.4
2/20 17:30	122.6	↓-2.5
2/20 17:40	119.8	↓-2.8
2/20 17:50	116.9	↓-2.9
2/20 18:00	113.8	↓-3.1
2/20 18:10	110.5	↓-3.3
2/20 18:20	107.1	↓-3.4
2/20 18:30	103.6	↓-3.5
2/20 18:40	100.0	↓-3.6
2/20 18:50	96.2	↓-3.8
2/20 19:00	92.4	↓-3.8
2/20 19:10	88.6	↓-3.8
2/20 19:20	84.8	↓-3.8
2/20 19:30	80.9	↓-3.9	最大潮位差
2/20 19:40	77.0	↓-3.9	最大潮位差
2/20 19:50	73.2	↓-3.8
2/20 20:00	69.4	↓-3.8
2/20 20:10	65.7	↓-3.7
2/20 20:20	62.1	↓-3.6
2/20 20:30	58.6	↓-3.5
2/20 20:40	55.2	↓-3.4
2/20 20:50	51.9	↓-3.3
2/20 21:00	48.8	↓-3.1
2/20 21:10	45.9	↓-2.9
2/20 21:20	43.2	↓-2.7
2/20 21:30	40.6	↓-2.6
2/20 21:40	38.3	↓-2.3
2/20 21:50	36.2	↓-2.1
2/20 22:00	34.4	↓-1.8
2/20 22:10	32.8	↓-1.6
2/20 22:20	31.5	↓-1.3
2/20 22:30	30.4	↓-1.1
2/20 22:40	29.6	↓-0.8
2/20 22:50	29.1	↓-0.5
2/20 23:00	28.8	↓-0.3	干潮
2/20 23:10	28.8	0
2/20 23:20	29.2	↑0.4
2/20 23:30	29.8	↑0.6
2/20 23:40	30.6	↑0.8
2/20 23:50	31.8	↑1.2