18 (月)	05:40	12:00	18:13	-
	177cm	41cm	179cm	-
中潮 出 06:38 入 18:11 出 17:05 入 04:17

長山（沖縄）2021年10月18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
10/18 00:00	64.7	↑0.6
10/18 00:10	65.7	↑1.0
10/18 00:20	67.1	↑1.4
10/18 00:30	68.9	↑1.8
10/18 00:40	71.1	↑2.2
10/18 00:50	73.7	↑2.6
10/18 01:00	76.6	↑2.9
10/18 01:10	79.8	↑3.2
10/18 01:20	83.3	↑3.5
10/18 01:30	87.2	↑3.9
10/18 01:40	91.2	↑4.0
10/18 01:50	95.5	↑4.3
10/18 02:00	100.0	↑4.5
10/18 02:10	104.7	↑4.7
10/18 02:20	109.5	↑4.8
10/18 02:30	114.3	↑4.8
10/18 02:40	119.3	↑5.0
10/18 02:50	124.2	↑4.9
10/18 03:00	129.1	↑4.9
10/18 03:10	134.0	↑4.9
10/18 03:20	138.7	↑4.7
10/18 03:30	143.4	↑4.7
10/18 03:40	147.8	↑4.4
10/18 03:50	152.1	↑4.3
10/18 04:00	156.1	↑4.0
10/18 04:10	159.8	↑3.7
10/18 04:20	163.2	↑3.4
10/18 04:30	166.3	↑3.1
10/18 04:40	169.1	↑2.8
10/18 04:50	171.4	↑2.3
10/18 05:00	173.3	↑1.9
10/18 05:10	174.9	↑1.6
10/18 05:20	175.9	↑1.0
10/18 05:30	176.6	↑0.7	満潮
10/18 05:40	176.8	↑0.2	満潮
10/18 05:50	176.5	↓-0.3
10/18 06:00	175.7	↓-0.8
10/18 06:10	174.5	↓-1.2
10/18 06:20	172.9	↓-1.6
10/18 06:30	170.8	↓-2.1
10/18 06:40	168.3	↓-2.5
10/18 06:50	165.4	↓-2.9
10/18 07:00	162.1	↓-3.3
10/18 07:10	158.4	↓-3.7
10/18 07:20	154.4	↓-4.0
10/18 07:30	150.1	↓-4.3
10/18 07:40	145.5	↓-4.6
10/18 07:50	140.6	↓-4.9
10/18 08:00	135.5	↓-5.1
10/18 08:10	130.2	↓-5.3
10/18 08:20	124.8	↓-5.4
10/18 08:30	119.2	↓-5.6
10/18 08:40	113.6	↓-5.6
10/18 08:50	108.0	↓-5.6
10/18 09:00	102.3	↓-5.7
10/18 09:10	96.7	↓-5.6
10/18 09:20	91.2	↓-5.5
10/18 09:30	85.8	↓-5.4
10/18 09:40	80.6	↓-5.2
10/18 09:50	75.5	↓-5.1
10/18 10:00	70.7	↓-4.8
10/18 10:10	66.1	↓-4.6
10/18 10:20	61.8	↓-4.3
10/18 10:30	57.8	↓-4.0
10/18 10:40	54.2	↓-3.6
10/18 10:50	51.0	↓-3.2
10/18 11:00	48.1	↓-2.9
10/18 11:10	45.7	↓-2.4
10/18 11:20	43.7	↓-2.0
10/18 11:30	42.1	↓-1.6
10/18 11:40	41.0	↓-1.1
10/18 11:50	40.3	↓-0.7	干潮
10/18 12:00	40.2	↓-0.1	干潮
10/18 12:10	40.5	↑0.3
10/18 12:20	41.3	↑0.8
10/18 12:30	42.5	↑1.2
10/18 12:40	44.2	↑1.7
10/18 12:50	46.4	↑2.2
10/18 13:00	49.0	↑2.6
10/18 13:10	52.0	↑3.0
10/18 13:20	55.4	↑3.4
10/18 13:30	59.3	↑3.9
10/18 13:40	63.4	↑4.1
10/18 13:50	67.9	↑4.5
10/18 14:00	72.7	↑4.8
10/18 14:10	77.7	↑5.0
10/18 14:20	83.0	↑5.3
10/18 14:30	88.5	↑5.5
10/18 14:40	94.1	↑5.6
10/18 14:50	99.8	↑5.7
10/18 15:00	105.6	↑5.8
10/18 15:10	111.5	↑5.9	最大潮位差
10/18 15:20	117.3	↑5.8
10/18 15:30	123.1	↑5.8
10/18 15:40	128.7	↑5.6
10/18 15:50	134.3	↑5.6
10/18 16:00	139.6	↑5.3
10/18 16:10	144.8	↑5.2
10/18 16:20	149.7	↑4.9
10/18 16:30	154.3	↑4.6
10/18 16:40	158.6	↑4.3
10/18 16:50	162.5	↑3.9
10/18 17:00	166.1	↑3.6
10/18 17:10	169.2	↑3.1
10/18 17:20	171.9	↑2.7
10/18 17:30	174.2	↑2.3
10/18 17:40	176.0	↑1.8
10/18 17:50	177.3	↑1.3
10/18 18:00	178.2	↑0.9
10/18 18:10	178.5	↑0.3	満潮
10/18 18:20	178.4	↓-0.1
10/18 18:30	177.7	↓-0.7
10/18 18:40	176.6	↓-1.1
10/18 18:50	175.0	↓-1.6
10/18 19:00	173.0	↓-2.0
10/18 19:10	170.5	↓-2.5
10/18 19:20	167.5	↓-3.0
10/18 19:30	164.2	↓-3.3
10/18 19:40	160.5	↓-3.7
10/18 19:50	156.5	↓-4.0
10/18 20:00	152.1	↓-4.4
10/18 20:10	147.5	↓-4.6
10/18 20:20	142.6	↓-4.9
10/18 20:30	137.5	↓-5.1
10/18 20:40	132.2	↓-5.3
10/18 20:50	126.8	↓-5.4
10/18 21:00	121.3	↓-5.5
10/18 21:10	115.7	↓-5.6
10/18 21:20	110.2	↓-5.5
10/18 21:30	104.6	↓-5.6
10/18 21:40	99.1	↓-5.5
10/18 21:50	93.8	↓-5.3
10/18 22:00	88.5	↓-5.3
10/18 22:10	83.5	↓-5.0
10/18 22:20	78.7	↓-4.8
10/18 22:30	74.1	↓-4.6
10/18 22:40	69.8	↓-4.3
10/18 22:50	65.9	↓-3.9
10/18 23:00	62.2	↓-3.7
10/18 23:10	59.0	↓-3.2
10/18 23:20	56.1	↓-2.9
10/18 23:30	53.7	↓-2.4
10/18 23:40	51.7	↓-2.0
10/18 23:50	50.1	↓-1.6