20 (金)	10:17	04:23	-	17:36
	160cm	96cm	-	40cm
小潮 出 06:13 入 19:04 出 10:43 入 - 潮干狩り ○ 16:53～18:19

長山（沖縄）2029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	134.7	↓-0.7
4/20 00:10	133.7	↓-1.0
4/20 00:20	132.5	↓-1.2
4/20 00:30	131.1	↓-1.4
4/20 00:40	129.6	↓-1.5
4/20 00:50	127.9	↓-1.7
4/20 01:00	126.2	↓-1.7
4/20 01:10	124.3	↓-1.9
4/20 01:20	122.3	↓-2.0
4/20 01:30	120.2	↓-2.1
4/20 01:40	118.1	↓-2.1
4/20 01:50	116.0	↓-2.1
4/20 02:00	113.9	↓-2.1
4/20 02:10	111.8	↓-2.1
4/20 02:20	109.8	↓-2.0
4/20 02:30	107.8	↓-2.0
4/20 02:40	105.9	↓-1.9
4/20 02:50	104.1	↓-1.8
4/20 03:00	102.5	↓-1.6
4/20 03:10	100.9	↓-1.6
4/20 03:20	99.6	↓-1.3
4/20 03:30	98.4	↓-1.2
4/20 03:40	97.4	↓-1.0
4/20 03:50	96.5	↓-0.9
4/20 04:00	95.9	↓-0.6
4/20 04:10	95.6	↓-0.3
4/20 04:20	95.4	↓-0.2	干潮
4/20 04:30	95.5	↑0.1
4/20 04:40	95.8	↑0.3
4/20 04:50	96.4	↑0.6
4/20 05:00	97.1	↑0.7
4/20 05:10	98.2	↑1.1
4/20 05:20	99.4	↑1.2
4/20 05:30	100.9	↑1.5
4/20 05:40	102.5	↑1.6
4/20 05:50	104.4	↑1.9
4/20 06:00	106.4	↑2.0
4/20 06:10	108.6	↑2.2
4/20 06:20	111.0	↑2.4
4/20 06:30	113.5	↑2.5
4/20 06:40	116.1	↑2.6
4/20 06:50	118.8	↑2.7
4/20 07:00	121.6	↑2.8
4/20 07:10	124.4	↑2.8
4/20 07:20	127.2	↑2.8
4/20 07:30	130.1	↑2.9
4/20 07:40	133.0	↑2.9
4/20 07:50	135.8	↑2.8
4/20 08:00	138.5	↑2.7
4/20 08:10	141.2	↑2.7
4/20 08:20	143.7	↑2.5
4/20 08:30	146.2	↑2.5
4/20 08:40	148.5	↑2.3
4/20 08:50	150.6	↑2.1
4/20 09:00	152.5	↑1.9
4/20 09:10	154.3	↑1.8
4/20 09:20	155.8	↑1.5
4/20 09:30	157.1	↑1.3
4/20 09:40	158.2	↑1.1
4/20 09:50	159.0	↑0.8
4/20 10:00	159.6	↑0.6
4/20 10:10	159.9	↑0.3	満潮
4/20 10:20	159.9	0
4/20 10:30	159.6	↓-0.3
4/20 10:40	159.1	↓-0.5
4/20 10:50	158.3	↓-0.8
4/20 11:00	157.2	↓-1.1
4/20 11:10	155.8	↓-1.4
4/20 11:20	154.2	↓-1.6
4/20 11:30	152.3	↓-1.9
4/20 11:40	150.1	↓-2.2
4/20 11:50	147.7	↓-2.4
4/20 12:00	145.0	↓-2.7
4/20 12:10	142.1	↓-2.9
4/20 12:20	138.9	↓-3.2
4/20 12:30	135.6	↓-3.3
4/20 12:40	132.1	↓-3.5
4/20 12:50	128.4	↓-3.7
4/20 13:00	124.5	↓-3.9
4/20 13:10	120.5	↓-4.0
4/20 13:20	116.4	↓-4.1
4/20 13:30	112.2	↓-4.2
4/20 13:40	107.9	↓-4.3
4/20 13:50	103.6	↓-4.3
4/20 14:00	99.2	↓-4.4	最大潮位差
4/20 14:10	94.9	↓-4.3
4/20 14:20	90.5	↓-4.4	最大潮位差
4/20 14:30	86.2	↓-4.3
4/20 14:40	82.0	↓-4.2
4/20 14:50	77.8	↓-4.2
4/20 15:00	73.7	↓-4.1
4/20 15:10	69.8	↓-3.9
4/20 15:20	66.1	↓-3.7
4/20 15:30	62.5	↓-3.6
4/20 15:40	59.1	↓-3.4
4/20 15:50	55.9	↓-3.2
4/20 16:00	53.0	↓-2.9
4/20 16:10	50.3	↓-2.7
4/20 16:20	47.9	↓-2.4
4/20 16:30	45.8	↓-2.1
4/20 16:40	43.9	↓-1.9
4/20 16:50	42.4	↓-1.5
4/20 17:00	41.1	↓-1.3
4/20 17:10	40.2	↓-0.9
4/20 17:20	39.5	↓-0.7
4/20 17:30	39.2	↓-0.3	干潮
4/20 17:40	39.2	0
4/20 17:50	39.5	↑0.3
4/20 18:00	40.1	↑0.6
4/20 18:10	41.0	↑0.9
4/20 18:20	42.2	↑1.2
4/20 18:30	43.6	↑1.4
4/20 18:40	45.4	↑1.8
4/20 18:50	47.3	↑1.9
4/20 19:00	49.5	↑2.2
4/20 19:10	51.9	↑2.4
4/20 19:20	54.6	↑2.7
4/20 19:30	57.4	↑2.8
4/20 19:40	60.3	↑2.9
4/20 19:50	63.4	↑3.1
4/20 20:00	66.6	↑3.2
4/20 20:10	69.9	↑3.3
4/20 20:20	73.3	↑3.4
4/20 20:30	76.8	↑3.5
4/20 20:40	80.3	↑3.5
4/20 20:50	83.7	↑3.4
4/20 21:00	87.2	↑3.5
4/20 21:10	90.7	↑3.5
4/20 21:20	94.1	↑3.4
4/20 21:30	97.5	↑3.4
4/20 21:40	100.7	↑3.2
4/20 21:50	103.9	↑3.2
4/20 22:00	107.0	↑3.1
4/20 22:10	109.9	↑2.9
4/20 22:20	112.7	↑2.8
4/20 22:30	115.4	↑2.7
4/20 22:40	117.8	↑2.4
4/20 22:50	120.2	↑2.4
4/20 23:00	122.3	↑2.1
4/20 23:10	124.2	↑1.9
4/20 23:20	126.0	↑1.8
4/20 23:30	127.5	↑1.5
4/20 23:40	128.8	↑1.3
4/20 23:50	130.0	↑1.2