20 (月)	06:37	00:38	19:20	13:06
	200cm	68cm	189cm	29cm
大潮 出 06:27 入 18:39 出 18:31 入 05:28 潮干狩り ○ 11:55～14:16

長山（沖縄）2021年09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
9/20 00:00	70.4	↓-2.0
9/20 00:10	68.9	↓-1.5
9/20 00:20	67.9	↓-1.0
9/20 00:30	67.3	↓-0.6	干潮
9/20 00:40	67.2	↓-0.1
9/20 00:50	67.6	↑0.4
9/20 01:00	68.4	↑0.8
9/20 01:10	69.7	↑1.3
9/20 01:20	71.5	↑1.8
9/20 01:30	73.7	↑2.2
9/20 01:40	76.4	↑2.7
9/20 01:50	79.5	↑3.1
9/20 02:00	83.0	↑3.5
9/20 02:10	86.9	↑3.9
9/20 02:20	91.1	↑4.2
9/20 02:30	95.7	↑4.6
9/20 02:40	100.6	↑4.9
9/20 02:50	105.7	↑5.1
9/20 03:00	111.0	↑5.3
9/20 03:10	116.5	↑5.5
9/20 03:20	122.1	↑5.6
9/20 03:30	127.9	↑5.8
9/20 03:40	133.7	↑5.8
9/20 03:50	139.5	↑5.8
9/20 04:00	145.2	↑5.7
9/20 04:10	150.9	↑5.7
9/20 04:20	156.5	↑5.6
9/20 04:30	161.9	↑5.4
9/20 04:40	167.1	↑5.2
9/20 04:50	172.0	↑4.9
9/20 05:00	176.6	↑4.6
9/20 05:10	180.9	↑4.3
9/20 05:20	184.8	↑3.9
9/20 05:30	188.4	↑3.6
9/20 05:40	191.5	↑3.1
9/20 05:50	194.1	↑2.6
9/20 06:00	196.3	↑2.2
9/20 06:10	197.9	↑1.6
9/20 06:20	199.1	↑1.2
9/20 06:30	199.7	↑0.6	満潮
9/20 06:40	199.8	↑0.1
9/20 06:50	199.3	↓-0.5
9/20 07:00	198.3	↓-1.0
9/20 07:10	196.7	↓-1.6
9/20 07:20	194.7	↓-2.0
9/20 07:30	192.0	↓-2.7
9/20 07:40	188.9	↓-3.1
9/20 07:50	185.3	↓-3.6
9/20 08:00	181.2	↓-4.1
9/20 08:10	176.7	↓-4.5
9/20 08:20	171.8	↓-4.9
9/20 08:30	166.5	↓-5.3
9/20 08:40	160.8	↓-5.7
9/20 08:50	154.9	↓-5.9
9/20 09:00	148.6	↓-6.3
9/20 09:10	142.1	↓-6.5
9/20 09:20	135.5	↓-6.6
9/20 09:30	128.7	↓-6.8
9/20 09:40	121.8	↓-6.9
9/20 09:50	114.9	↓-6.9
9/20 10:00	107.9	↓-7.0	最大潮位差
9/20 10:10	101.0	↓-6.9
9/20 10:20	94.2	↓-6.8
9/20 10:30	87.5	↓-6.7
9/20 10:40	80.9	↓-6.6
9/20 10:50	74.6	↓-6.3
9/20 11:00	68.6	↓-6.0
9/20 11:10	62.9	↓-5.7
9/20 11:20	57.5	↓-5.4
9/20 11:30	52.4	↓-5.1
9/20 11:40	47.8	↓-4.6
9/20 11:50	43.6	↓-4.2
9/20 12:00	39.9	↓-3.7
9/20 12:10	36.6	↓-3.3
9/20 12:20	33.9	↓-2.7
9/20 12:30	31.7	↓-2.2
9/20 12:40	30.1	↓-1.6
9/20 12:50	29.0	↓-1.1
9/20 13:00	28.4	↓-0.6	干潮
9/20 13:10	28.5	↑0.1
9/20 13:20	29.0	↑0.5
9/20 13:30	30.2	↑1.2
9/20 13:40	31.9	↑1.7
9/20 13:50	34.1	↑2.2
9/20 14:00	36.9	↑2.8
9/20 14:10	40.2	↑3.3
9/20 14:20	43.9	↑3.7
9/20 14:30	48.1	↑4.2
9/20 14:40	52.7	↑4.6
9/20 14:50	57.8	↑5.1
9/20 15:00	63.1	↑5.3
9/20 15:10	68.8	↑5.7
9/20 15:20	74.8	↑6.0
9/20 15:30	81.0	↑6.2
9/20 15:40	87.4	↑6.4
9/20 15:50	94.0	↑6.6
9/20 16:00	100.6	↑6.6
9/20 16:10	107.4	↑6.8
9/20 16:20	114.1	↑6.7
9/20 16:30	120.7	↑6.6
9/20 16:40	127.3	↑6.6
9/20 16:50	133.8	↑6.5
9/20 17:00	140.0	↑6.2
9/20 17:10	146.1	↑6.1
9/20 17:20	151.8	↑5.7
9/20 17:30	157.3	↑5.5
9/20 17:40	162.4	↑5.1
9/20 17:50	167.1	↑4.7
9/20 18:00	171.4	↑4.3
9/20 18:10	175.3	↑3.9
9/20 18:20	178.7	↑3.4
9/20 18:30	181.5	↑2.8
9/20 18:40	183.9	↑2.4
9/20 18:50	185.8	↑1.9
9/20 19:00	187.1	↑1.3
9/20 19:10	187.9	↑0.8	満潮
9/20 19:20	188.1	↑0.2	満潮
9/20 19:30	187.8	↓-0.3
9/20 19:40	187.0	↓-0.8
9/20 19:50	185.6	↓-1.4
9/20 20:00	183.7	↓-1.9
9/20 20:10	181.3	↓-2.4
9/20 20:20	178.4	↓-2.9
9/20 20:30	175.1	↓-3.3
9/20 20:40	171.4	↓-3.7
9/20 20:50	167.3	↓-4.1
9/20 21:00	162.8	↓-4.5
9/20 21:10	158.0	↓-4.8
9/20 21:20	152.9	↓-5.1
9/20 21:30	147.6	↓-5.3
9/20 21:40	142.0	↓-5.6
9/20 21:50	136.4	↓-5.6
9/20 22:00	130.6	↓-5.8
9/20 22:10	124.7	↓-5.9
9/20 22:20	118.8	↓-5.9
9/20 22:30	113.0	↓-5.8
9/20 22:40	107.2	↓-5.8
9/20 22:50	101.5	↓-5.7
9/20 23:00	96.0	↓-5.5
9/20 23:10	90.7	↓-5.3
9/20 23:20	85.6	↓-5.1
9/20 23:30	80.8	↓-4.8
9/20 23:40	76.3	↓-4.5
9/20 23:50	72.2	↓-4.1