20 (土)	08:54	03:00	22:18	15:43
	184cm	70cm	155cm	11cm
中潮 出 06:13 入 19:04 出 22:53 入 08:38 潮干狩り ◎ 13:49～17:39

長山（沖縄）2041年04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
4/20 00:00	122.9	↓-4.4
4/20 00:10	118.4	↓-4.5
4/20 00:20	113.9	↓-4.5
4/20 00:30	109.5	↓-4.4
4/20 00:40	105.1	↓-4.4
4/20 00:50	100.8	↓-4.3
4/20 01:00	96.7	↓-4.1
4/20 01:10	92.8	↓-3.9
4/20 01:20	89.1	↓-3.7
4/20 01:30	85.6	↓-3.5
4/20 01:40	82.4	↓-3.2
4/20 01:50	79.5	↓-2.9
4/20 02:00	77.0	↓-2.5
4/20 02:10	74.8	↓-2.2
4/20 02:20	72.9	↓-1.9
4/20 02:30	71.5	↓-1.4
4/20 02:40	70.5	↓-1.0
4/20 02:50	69.9	↓-0.6	干潮
4/20 03:00	69.7	↓-0.2	干潮
4/20 03:10	70.0	↑0.3
4/20 03:20	70.6	↑0.6
4/20 03:30	71.8	↑1.2
4/20 03:40	73.3	↑1.5
4/20 03:50	75.2	↑1.9
4/20 04:00	77.5	↑2.3
4/20 04:10	80.3	↑2.8
4/20 04:20	83.3	↑3.0
4/20 04:30	86.7	↑3.4
4/20 04:40	90.5	↑3.8
4/20 04:50	94.5	↑4.0
4/20 05:00	98.7	↑4.2
4/20 05:10	103.2	↑4.5
4/20 05:20	107.9	↑4.7
4/20 05:30	112.7	↑4.8
4/20 05:40	117.7	↑5.0
4/20 05:50	122.7	↑5.0
4/20 06:00	127.7	↑5.0
4/20 06:10	132.8	↑5.1
4/20 06:20	137.8	↑5.0
4/20 06:30	142.7	↑4.9
4/20 06:40	147.5	↑4.8
4/20 06:50	152.1	↑4.6
4/20 07:00	156.6	↑4.5
4/20 07:10	160.8	↑4.2
4/20 07:20	164.8	↑4.0
4/20 07:30	168.4	↑3.6
4/20 07:40	171.7	↑3.3
4/20 07:50	174.7	↑3.0
4/20 08:00	177.3	↑2.6
4/20 08:10	179.4	↑2.1
4/20 08:20	181.2	↑1.8
4/20 08:30	182.5	↑1.3
4/20 08:40	183.3	↑0.8
4/20 08:50	183.7	↑0.4	満潮
4/20 09:00	183.6	↓-0.1
4/20 09:10	183.0	↓-0.6
4/20 09:20	182.0	↓-1.0
4/20 09:30	180.4	↓-1.6
4/20 09:40	178.4	↓-2.0
4/20 09:50	175.9	↓-2.5
4/20 10:00	172.9	↓-3.0
4/20 10:10	169.5	↓-3.4
4/20 10:20	165.7	↓-3.8
4/20 10:30	161.5	↓-4.2
4/20 10:40	156.9	↓-4.6
4/20 10:50	151.9	↓-5.0
4/20 11:00	146.6	↓-5.3
4/20 11:10	141.1	↓-5.5
4/20 11:20	135.2	↓-5.9
4/20 11:30	129.1	↓-6.1
4/20 11:40	122.8	↓-6.3
4/20 11:50	116.4	↓-6.4
4/20 12:00	109.9	↓-6.5
4/20 12:10	103.2	↓-6.7	最大潮位差
4/20 12:20	96.5	↓-6.7	最大潮位差
4/20 12:30	89.9	↓-6.6
4/20 12:40	83.2	↓-6.7	最大潮位差
4/20 12:50	76.7	↓-6.5
4/20 13:00	70.2	↓-6.5
4/20 13:10	64.0	↓-6.2
4/20 13:20	57.9	↓-6.1
4/20 13:30	52.1	↓-5.8
4/20 13:40	46.5	↓-5.6
4/20 13:50	41.3	↓-5.2
4/20 14:00	36.3	↓-5.0
4/20 14:10	31.8	↓-4.5
4/20 14:20	27.6	↓-4.2
4/20 14:30	23.9	↓-3.7
4/20 14:40	20.6	↓-3.3
4/20 14:50	17.8	↓-2.8
4/20 15:00	15.4	↓-2.4
4/20 15:10	13.5	↓-1.9
4/20 15:20	12.2	↓-1.3
4/20 15:30	11.3	↓-0.9
4/20 15:40	11.0	↓-0.3	干潮
4/20 15:50	11.1	↑0.1
4/20 16:00	11.8	↑0.7
4/20 16:10	12.9	↑1.1
4/20 16:20	14.6	↑1.7
4/20 16:30	16.7	↑2.1
4/20 16:40	19.2	↑2.5
4/20 16:50	22.2	↑3.0
4/20 17:00	25.6	↑3.4
4/20 17:10	29.4	↑3.8
4/20 17:20	33.5	↑4.1
4/20 17:30	38.0	↑4.5
4/20 17:40	42.7	↑4.7
4/20 17:50	47.7	↑5.0
4/20 18:00	52.9	↑5.2
4/20 18:10	58.3	↑5.4
4/20 18:20	63.9	↑5.6
4/20 18:30	69.6	↑5.7
4/20 18:40	75.3	↑5.7
4/20 18:50	81.1	↑5.8
4/20 19:00	86.8	↑5.7
4/20 19:10	92.5	↑5.7
4/20 19:20	98.2	↑5.7
4/20 19:30	103.7	↑5.5
4/20 19:40	109.1	↑5.4
4/20 19:50	114.2	↑5.1
4/20 20:00	119.2	↑5.0
4/20 20:10	124.0	↑4.8
4/20 20:20	128.4	↑4.4
4/20 20:30	132.6	↑4.2
4/20 20:40	136.4	↑3.8
4/20 20:50	139.9	↑3.5
4/20 21:00	143.1	↑3.2
4/20 21:10	145.9	↑2.8
4/20 21:20	148.3	↑2.4
4/20 21:30	150.3	↑2.0
4/20 21:40	152.0	↑1.7
4/20 21:50	153.2	↑1.2
4/20 22:00	154.1	↑0.9
4/20 22:10	154.5	↑0.4	満潮
4/20 22:20	154.6	↑0.1
4/20 22:30	154.3	↓-0.3
4/20 22:40	153.6	↓-0.7
4/20 22:50	152.5	↓-1.1
4/20 23:00	151.1	↓-1.4
4/20 23:10	149.4	↓-1.7
4/20 23:20	147.4	↓-2.0
4/20 23:30	145.2	↓-2.2
4/20 23:40	142.6	↓-2.6
4/20 23:50	139.9	↓-2.7