20 (土)	08:29	02:43	21:49	15:12
	172cm	70cm	157cm	11cm
中潮 出 06:19 入 19:12 出 21:47 入 07:40 潮干狩り ◎ 13:17～17:07

黄尾嶼（沖縄）2030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	113.7	↓-4.4
4/20 00:10	109.3	↓-4.4
4/20 00:20	105.0	↓-4.3
4/20 00:30	100.8	↓-4.2
4/20 00:40	96.7	↓-4.1
4/20 00:50	92.9	↓-3.8
4/20 01:00	89.2	↓-3.7
4/20 01:10	85.8	↓-3.4
4/20 01:20	82.7	↓-3.1
4/20 01:30	79.8	↓-2.9
4/20 01:40	77.3	↓-2.5
4/20 01:50	75.1	↓-2.2
4/20 02:00	73.3	↓-1.8
4/20 02:10	71.8	↓-1.5
4/20 02:20	70.7	↓-1.1
4/20 02:30	70.1	↓-0.6
4/20 02:40	69.8	↓-0.3	干潮
4/20 02:50	69.9	↑0.1
4/20 03:00	70.4	↑0.5
4/20 03:10	71.4	↑1.0
4/20 03:20	72.7	↑1.3
4/20 03:30	74.4	↑1.7
4/20 03:40	76.5	↑2.1
4/20 03:50	79.0	↑2.5
4/20 04:00	81.7	↑2.7
4/20 04:10	84.8	↑3.1
4/20 04:20	88.2	↑3.4
4/20 04:30	91.8	↑3.6
4/20 04:40	95.7	↑3.9
4/20 04:50	99.8	↑4.1
4/20 05:00	104.1	↑4.3
4/20 05:10	108.5	↑4.4
4/20 05:20	113.0	↑4.5
4/20 05:30	117.5	↑4.5
4/20 05:40	122.1	↑4.6
4/20 05:50	126.7	↑4.6
4/20 06:00	131.3	↑4.6
4/20 06:10	135.8	↑4.5
4/20 06:20	140.1	↑4.3
4/20 06:30	144.3	↑4.2
4/20 06:40	148.3	↑4.0
4/20 06:50	152.1	↑3.8
4/20 07:00	155.7	↑3.6
4/20 07:10	158.9	↑3.2
4/20 07:20	161.8	↑2.9
4/20 07:30	164.4	↑2.6
4/20 07:40	166.7	↑2.3
4/20 07:50	168.5	↑1.8
4/20 08:00	169.9	↑1.4
4/20 08:10	170.9	↑1.0
4/20 08:20	171.5	↑0.6	満潮
4/20 08:30	171.6	↑0.1
4/20 08:40	171.3	↓-0.3
4/20 08:50	170.5	↓-0.8
4/20 09:00	169.2	↓-1.3
4/20 09:10	167.5	↓-1.7
4/20 09:20	165.4	↓-2.1
4/20 09:30	162.8	↓-2.6
4/20 09:40	159.7	↓-3.1
4/20 09:50	156.3	↓-3.4
4/20 10:00	152.4	↓-3.9
4/20 10:10	148.2	↓-4.2
4/20 10:20	143.6	↓-4.6
4/20 10:30	138.7	↓-4.9
4/20 10:40	133.6	↓-5.1
4/20 10:50	128.1	↓-5.5
4/20 11:00	122.4	↓-5.7
4/20 11:10	116.5	↓-5.9
4/20 11:20	110.5	↓-6.0
4/20 11:30	104.3	↓-6.2
4/20 11:40	98.1	↓-6.2
4/20 11:50	91.7	↓-6.4	最大潮位差
4/20 12:00	85.4	↓-6.3
4/20 12:10	79.2	↓-6.2
4/20 12:20	73.0	↓-6.2
4/20 12:30	66.9	↓-6.1
4/20 12:40	60.9	↓-6.0
4/20 12:50	55.2	↓-5.7
4/20 13:00	49.6	↓-5.6
4/20 13:10	44.3	↓-5.3
4/20 13:20	39.4	↓-4.9
4/20 13:30	34.7	↓-4.7
4/20 13:40	30.4	↓-4.3
4/20 13:50	26.5	↓-3.9
4/20 14:00	22.9	↓-3.6
4/20 14:10	19.8	↓-3.1
4/20 14:20	17.1	↓-2.7
4/20 14:30	14.9	↓-2.2
4/20 14:40	13.2	↓-1.7
4/20 14:50	11.9	↓-1.3
4/20 15:00	11.2	↓-0.7
4/20 15:10	10.9	↓-0.3	干潮
4/20 15:20	11.1	↑0.2
4/20 15:30	11.8	↑0.7
4/20 15:40	13.0	↑1.2
4/20 15:50	14.6	↑1.6
4/20 16:00	16.7	↑2.1
4/20 16:10	19.2	↑2.5
4/20 16:20	22.2	↑3.0
4/20 16:30	25.6	↑3.4
4/20 16:40	29.3	↑3.7
4/20 16:50	33.4	↑4.1
4/20 17:00	37.8	↑4.4
4/20 17:10	42.5	↑4.7
4/20 17:20	47.5	↑5.0
4/20 17:30	52.7	↑5.2
4/20 17:40	58.1	↑5.4
4/20 17:50	63.6	↑5.5
4/20 18:00	69.3	↑5.7
4/20 18:10	75.0	↑5.7
4/20 18:20	80.8	↑5.8
4/20 18:30	86.6	↑5.8
4/20 18:40	92.3	↑5.7
4/20 18:50	98.0	↑5.7
4/20 19:00	103.6	↑5.6
4/20 19:10	109.1	↑5.5
4/20 19:20	114.3	↑5.2
4/20 19:30	119.4	↑5.1
4/20 19:40	124.3	↑4.9
4/20 19:50	128.8	↑4.5
4/20 20:00	133.1	↑4.3
4/20 20:10	137.1	↑4.0
4/20 20:20	140.7	↑3.6
4/20 20:30	144.0	↑3.3
4/20 20:40	146.9	↑2.9
4/20 20:50	149.5	↑2.6
4/20 21:00	151.6	↑2.1
4/20 21:10	153.3	↑1.7
4/20 21:20	154.7	↑1.4
4/20 21:30	155.6	↑0.9
4/20 21:40	156.1	↑0.5	満潮
4/20 21:50	156.3	↑0.2
4/20 22:00	156.0	↓-0.3
4/20 22:10	155.4	↓-0.6
4/20 22:20	154.3	↓-1.1
4/20 22:30	153.0	↓-1.3
4/20 22:40	151.3	↓-1.7
4/20 22:50	149.3	↓-2.0
4/20 23:00	147.0	↓-2.3
4/20 23:10	144.4	↓-2.6
4/20 23:20	141.6	↓-2.8
4/20 23:30	138.6	↓-3.0
4/20 23:40	135.4	↓-3.2
4/20 23:50	132.0	↓-3.4