31 (金)	11:25	04:44	22:44	16:58
	143cm	16cm	145cm	73cm
中潮 出 07:23 入 18:02 出 11:32 入 23:15

長山（沖縄）2038年12月31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
12/31 00:00	129.8	↓-4.4
12/31 00:10	125.3	↓-4.5
12/31 00:20	120.4	↓-4.9
12/31 00:30	115.4	↓-5.0
12/31 00:40	110.2	↓-5.2
12/31 00:50	104.8	↓-5.4
12/31 01:00	99.4	↓-5.4
12/31 01:10	93.8	↓-5.6	最大潮位差
12/31 01:20	88.3	↓-5.5
12/31 01:30	82.7	↓-5.6	最大潮位差
12/31 01:40	77.1	↓-5.6	最大潮位差
12/31 01:50	71.6	↓-5.5
12/31 02:00	66.2	↓-5.4
12/31 02:10	60.9	↓-5.3
12/31 02:20	55.8	↓-5.1
12/31 02:30	50.8	↓-5.0
12/31 02:40	46.1	↓-4.7
12/31 02:50	41.7	↓-4.4
12/31 03:00	37.5	↓-4.2
12/31 03:10	33.7	↓-3.8
12/31 03:20	30.1	↓-3.6
12/31 03:30	26.9	↓-3.2
12/31 03:40	24.1	↓-2.8
12/31 03:50	21.7	↓-2.4
12/31 04:00	19.7	↓-2.0
12/31 04:10	18.1	↓-1.6
12/31 04:20	16.9	↓-1.2
12/31 04:30	16.1	↓-0.8
12/31 04:40	15.8	↓-0.3	干潮
12/31 04:50	15.9	↑0.1
12/31 05:00	16.5	↑0.6
12/31 05:10	17.4	↑0.9
12/31 05:20	18.8	↑1.4
12/31 05:30	20.5	↑1.7
12/31 05:40	22.7	↑2.2
12/31 05:50	25.2	↑2.5
12/31 06:00	28.1	↑2.9
12/31 06:10	31.3	↑3.2
12/31 06:20	34.8	↑3.5
12/31 06:30	38.6	↑3.8
12/31 06:40	42.6	↑4.0
12/31 06:50	46.9	↑4.3
12/31 07:00	51.3	↑4.4
12/31 07:10	56.0	↑4.7
12/31 07:20	60.7	↑4.7
12/31 07:30	65.6	↑4.9
12/31 07:40	70.6	↑5.0
12/31 07:50	75.5	↑4.9
12/31 08:00	80.5	↑5.0
12/31 08:10	85.5	↑5.0
12/31 08:20	90.5	↑5.0
12/31 08:30	95.3	↑4.8
12/31 08:40	100.0	↑4.7
12/31 08:50	104.7	↑4.7
12/31 09:00	109.1	↑4.4
12/31 09:10	113.3	↑4.2
12/31 09:20	117.4	↑4.1
12/31 09:30	121.2	↑3.8
12/31 09:40	124.7	↑3.5
12/31 09:50	128.0	↑3.3
12/31 10:00	131.0	↑3.0
12/31 10:10	133.6	↑2.6
12/31 10:20	136.0	↑2.4
12/31 10:30	138.0	↑2.0
12/31 10:40	139.7	↑1.7
12/31 10:50	141.0	↑1.3
12/31 11:00	142.0	↑1.0
12/31 11:10	142.7	↑0.7
12/31 11:20	143.0	↑0.3	満潮
12/31 11:30	142.9	↓-0.1
12/31 11:40	142.5	↓-0.4
12/31 11:50	141.8	↓-0.7
12/31 12:00	140.8	↓-1.0
12/31 12:10	139.5	↓-1.3
12/31 12:20	137.9	↓-1.6
12/31 12:30	136.0	↓-1.9
12/31 12:40	133.9	↓-2.1
12/31 12:50	131.6	↓-2.3
12/31 13:00	129.0	↓-2.6
12/31 13:10	126.3	↓-2.7
12/31 13:20	123.4	↓-2.9
12/31 13:30	120.3	↓-3.1
12/31 13:40	117.2	↓-3.1
12/31 13:50	114.0	↓-3.2
12/31 14:00	110.7	↓-3.3
12/31 14:10	107.4	↓-3.3
12/31 14:20	104.2	↓-3.2
12/31 14:30	100.9	↓-3.3
12/31 14:40	97.8	↓-3.1
12/31 14:50	94.7	↓-3.1
12/31 15:00	91.7	↓-3.0
12/31 15:10	88.9	↓-2.8
12/31 15:20	86.2	↓-2.7
12/31 15:30	83.8	↓-2.4
12/31 15:40	81.5	↓-2.3
12/31 15:50	79.5	↓-2.0
12/31 16:00	77.7	↓-1.8
12/31 16:10	76.2	↓-1.5
12/31 16:20	75.0	↓-1.2
12/31 16:30	74.0	↓-1.0
12/31 16:40	73.4	↓-0.6
12/31 16:50	73.0	↓-0.4	干潮
12/31 17:00	72.9	↓-0.1
12/31 17:10	73.1	↑0.2
12/31 17:20	73.7	↑0.6
12/31 17:30	74.5	↑0.8
12/31 17:40	75.6	↑1.1
12/31 17:50	76.9	↑1.3
12/31 18:00	78.6	↑1.7
12/31 18:10	80.4	↑1.8
12/31 18:20	82.5	↑2.1
12/31 18:30	84.8	↑2.3
12/31 18:40	87.4	↑2.6
12/31 18:50	90.0	↑2.6
12/31 19:00	92.9	↑2.9
12/31 19:10	95.8	↑2.9
12/31 19:20	98.9	↑3.1
12/31 19:30	102.1	↑3.2
12/31 19:40	105.3	↑3.2
12/31 19:50	108.5	↑3.2
12/31 20:00	111.7	↑3.2
12/31 20:10	114.9	↑3.2
12/31 20:20	118.1	↑3.2
12/31 20:30	121.2	↑3.1
12/31 20:40	124.2	↑3.0
12/31 20:50	127.0	↑2.8
12/31 21:00	129.8	↑2.8
12/31 21:10	132.3	↑2.5
12/31 21:20	134.7	↑2.4
12/31 21:30	136.8	↑2.1
12/31 21:40	138.7	↑1.9
12/31 21:50	140.4	↑1.7
12/31 22:00	141.8	↑1.4
12/31 22:10	143.0	↑1.2
12/31 22:20	143.8	↑0.8
12/31 22:30	144.4	↑0.6
12/31 22:40	144.6	↑0.2	満潮
12/31 22:50	144.6	0
12/31 23:00	144.2	↓-0.4
12/31 23:10	143.5	↓-0.7
12/31 23:20	142.5	↓-1.0
12/31 23:30	141.2	↓-1.3
12/31 23:40	139.5	↓-1.7
12/31 23:50	137.6	↓-1.9