20 (木)	07:08	01:12	19:46	13:36
	179cm	46cm	173cm	19cm
大潮 出 06:18 入 19:08 出 06:14 入 19:17 潮干狩り ◎ 12:05～15:05

石垣島（沖縄）2023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	58.5	↓-3.6
4/20 00:10	55.4	↓-3.1
4/20 00:20	52.6	↓-2.8
4/20 00:30	50.3	↓-2.3
4/20 00:40	48.4	↓-1.9
4/20 00:50	47.0	↓-1.4
4/20 01:00	46.2	↓-0.8
4/20 01:10	45.9	↓-0.3	干潮
4/20 01:20	46.1	↑0.2
4/20 01:30	46.8	↑0.7
4/20 01:40	48.1	↑1.3
4/20 01:50	49.8	↑1.7
4/20 02:00	52.1	↑2.3
4/20 02:10	54.8	↑2.7
4/20 02:20	58.0	↑3.2
4/20 02:30	61.6	↑3.6
4/20 02:40	65.5	↑3.9
4/20 02:50	69.8	↑4.3
4/20 03:00	74.4	↑4.6
4/20 03:10	79.3	↑4.9
4/20 03:20	84.4	↑5.1
4/20 03:30	89.7	↑5.3
4/20 03:40	95.1	↑5.4
4/20 03:50	100.7	↑5.6
4/20 04:00	106.3	↑5.6
4/20 04:10	112.0	↑5.7
4/20 04:20	117.7	↑5.7
4/20 04:30	123.4	↑5.7
4/20 04:40	129.0	↑5.6
4/20 04:50	134.4	↑5.4
4/20 05:00	139.8	↑5.4
4/20 05:10	144.9	↑5.1
4/20 05:20	149.8	↑4.9
4/20 05:30	154.4	↑4.6
4/20 05:40	158.8	↑4.4
4/20 05:50	162.7	↑3.9
4/20 06:00	166.3	↑3.6
4/20 06:10	169.5	↑3.2
4/20 06:20	172.2	↑2.7
4/20 06:30	174.4	↑2.2
4/20 06:40	176.2	↑1.8
4/20 06:50	177.4	↑1.2
4/20 07:00	178.0	↑0.6	満潮
4/20 07:10	178.1	↑0.1
4/20 07:20	177.7	↓-0.4
4/20 07:30	176.7	↓-1.0
4/20 07:40	175.2	↓-1.5
4/20 07:50	173.2	↓-2.0
4/20 08:00	170.7	↓-2.5
4/20 08:10	167.8	↓-2.9
4/20 08:20	164.4	↓-3.4
4/20 08:30	160.6	↓-3.8
4/20 08:40	156.4	↓-4.2
4/20 08:50	151.9	↓-4.5
4/20 09:00	147.1	↓-4.8
4/20 09:10	142.0	↓-5.1
4/20 09:20	136.7	↓-5.3
4/20 09:30	131.1	↓-5.6
4/20 09:40	125.4	↓-5.7
4/20 09:50	119.6	↓-5.8
4/20 10:00	113.6	↓-6.0
4/20 10:10	107.5	↓-6.1
4/20 10:20	101.4	↓-6.1
4/20 10:30	95.2	↓-6.2
4/20 10:40	89.0	↓-6.2
4/20 10:50	82.8	↓-6.2
4/20 11:00	76.7	↓-6.1
4/20 11:10	70.7	↓-6.0
4/20 11:20	64.8	↓-5.9
4/20 11:30	59.1	↓-5.7
4/20 11:40	53.6	↓-5.5
4/20 11:50	48.4	↓-5.2
4/20 12:00	43.4	↓-5.0
4/20 12:10	38.8	↓-4.6
4/20 12:20	34.6	↓-4.2
4/20 12:30	30.8	↓-3.8
4/20 12:40	27.4	↓-3.4
4/20 12:50	24.6	↓-2.8
4/20 13:00	22.3	↓-2.3
4/20 13:10	20.6	↓-1.7
4/20 13:20	19.4	↓-1.2
4/20 13:30	18.8	↓-0.6	干潮
4/20 13:40	18.9	↑0.1
4/20 13:50	19.5	↑0.6
4/20 14:00	20.7	↑1.2
4/20 14:10	22.5	↑1.8
4/20 14:20	24.8	↑2.3
4/20 14:30	27.7	↑2.9
4/20 14:40	31.1	↑3.4
4/20 14:50	34.9	↑3.8
4/20 15:00	39.2	↑4.3
4/20 15:10	43.9	↑4.7
4/20 15:20	48.9	↑5.0
4/20 15:30	54.3	↑5.4
4/20 15:40	59.9	↑5.6
4/20 15:50	65.7	↑5.8
4/20 16:00	71.8	↑6.1
4/20 16:10	77.9	↑6.1
4/20 16:20	84.2	↑6.3
4/20 16:30	90.6	↑6.4	最大潮位差
4/20 16:40	97.0	↑6.4	最大潮位差
4/20 16:50	103.4	↑6.4	最大潮位差
4/20 17:00	109.7	↑6.3
4/20 17:10	115.9	↑6.2
4/20 17:20	122.0	↑6.1
4/20 17:30	128.0	↑6.0
4/20 17:40	133.7	↑5.7
4/20 17:50	139.1	↑5.4
4/20 18:00	144.3	↑5.2
4/20 18:10	149.1	↑4.8
4/20 18:20	153.5	↑4.4
4/20 18:30	157.6	↑4.1
4/20 18:40	161.1	↑3.5
4/20 18:50	164.3	↑3.2
4/20 19:00	166.9	↑2.6
4/20 19:10	169.0	↑2.1
4/20 19:20	170.6	↑1.6
4/20 19:30	171.6	↑1.0
4/20 19:40	172.1	↑0.5	満潮
4/20 19:50	172.2	↑0.1
4/20 20:00	171.6	↓-0.6
4/20 20:10	170.7	↓-0.9
4/20 20:20	169.2	↓-1.5
4/20 20:30	167.3	↓-1.9
4/20 20:40	165.0	↓-2.3
4/20 20:50	162.3	↓-2.7
4/20 21:00	159.2	↓-3.1
4/20 21:10	155.9	↓-3.3
4/20 21:20	152.3	↓-3.6
4/20 21:30	148.4	↓-3.9
4/20 21:40	144.3	↓-4.1
4/20 21:50	140.1	↓-4.2
4/20 22:00	135.6	↓-4.5
4/20 22:10	131.1	↓-4.5
4/20 22:20	126.5	↓-4.6
4/20 22:30	121.7	↓-4.8
4/20 22:40	117.0	↓-4.7
4/20 22:50	112.1	↓-4.9
4/20 23:00	107.3	↓-4.8
4/20 23:10	102.6	↓-4.7
4/20 23:20	97.8	↓-4.8
4/20 23:30	93.2	↓-4.6
4/20 23:40	88.6	↓-4.6
4/20 23:50	84.2	↓-4.4