31 (水)	09:12	02:40	20:28	14:41
	151cm	5cm	164cm	66cm
中潮 出 07:23 入 18:02 出 20:20 入 08:48

長山（沖縄）2031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	60.2	↓-6.1	最大潮位差
12/31 00:10	54.2	↓-6.0
12/31 00:20	48.4	↓-5.8
12/31 00:30	42.8	↓-5.6
12/31 00:40	37.5	↓-5.3
12/31 00:50	32.5	↓-5.0
12/31 01:00	27.8	↓-4.7
12/31 01:10	23.5	↓-4.3
12/31 01:20	19.6	↓-3.9
12/31 01:30	16.1	↓-3.5
12/31 01:40	13.0	↓-3.1
12/31 01:50	10.4	↓-2.6
12/31 02:00	8.3	↓-2.1
12/31 02:10	6.6	↓-1.7
12/31 02:20	5.4	↓-1.2
12/31 02:30	4.7	↓-0.7	干潮
12/31 02:40	4.5	↓-0.2	干潮
12/31 02:50	4.9	↑0.4
12/31 03:00	5.7	↑0.8
12/31 03:10	7.0	↑1.3
12/31 03:20	8.7	↑1.7
12/31 03:30	11.0	↑2.3
12/31 03:40	13.6	↑2.6
12/31 03:50	16.8	↑3.2
12/31 04:00	20.3	↑3.5
12/31 04:10	24.2	↑3.9
12/31 04:20	28.4	↑4.2
12/31 04:30	33.0	↑4.6
12/31 04:40	37.8	↑4.8
12/31 04:50	42.9	↑5.1
12/31 05:00	48.3	↑5.4
12/31 05:10	53.8	↑5.5
12/31 05:20	59.5	↑5.7
12/31 05:30	65.3	↑5.8
12/31 05:40	71.1	↑5.8
12/31 05:50	77.0	↑5.9
12/31 06:00	82.9	↑5.9
12/31 06:10	88.7	↑5.8
12/31 06:20	94.5	↑5.8
12/31 06:30	100.1	↑5.6
12/31 06:40	105.6	↑5.5
12/31 06:50	110.9	↑5.3
12/31 07:00	115.9	↑5.0
12/31 07:10	120.7	↑4.8
12/31 07:20	125.3	↑4.6
12/31 07:30	129.5	↑4.2
12/31 07:40	133.4	↑3.9
12/31 07:50	136.9	↑3.5
12/31 08:00	140.0	↑3.1
12/31 08:10	142.8	↑2.8
12/31 08:20	145.1	↑2.3
12/31 08:30	147.1	↑2.0
12/31 08:40	148.6	↑1.5
12/31 08:50	149.7	↑1.1
12/31 09:00	150.3	↑0.6
12/31 09:10	150.6	↑0.3	満潮
12/31 09:20	150.4	↓-0.2
12/31 09:30	149.8	↓-0.6
12/31 09:40	148.8	↓-1.0
12/31 09:50	147.4	↓-1.4
12/31 10:00	145.7	↓-1.7
12/31 10:10	143.6	↓-2.1
12/31 10:20	141.2	↓-2.4
12/31 10:30	138.5	↓-2.7
12/31 10:40	135.5	↓-3.0
12/31 10:50	132.3	↓-3.2
12/31 11:00	128.9	↓-3.4
12/31 11:10	125.3	↓-3.6
12/31 11:20	121.5	↓-3.8
12/31 11:30	117.6	↓-3.9
12/31 11:40	113.7	↓-3.9
12/31 11:50	109.7	↓-4.0
12/31 12:00	105.7	↓-4.0
12/31 12:10	101.7	↓-4.0
12/31 12:20	97.8	↓-3.9
12/31 12:30	94.0	↓-3.8
12/31 12:40	90.3	↓-3.7
12/31 12:50	86.8	↓-3.5
12/31 13:00	83.5	↓-3.3
12/31 13:10	80.3	↓-3.2
12/31 13:20	77.5	↓-2.8
12/31 13:30	74.9	↓-2.6
12/31 13:40	72.6	↓-2.3
12/31 13:50	70.6	↓-2.0
12/31 14:00	69.0	↓-1.6
12/31 14:10	67.7	↓-1.3
12/31 14:20	66.7	↓-1.0
12/31 14:30	66.2	↓-0.5
12/31 14:40	66.0	↓-0.2	干潮
12/31 14:50	66.2	↑0.2
12/31 15:00	66.8	↑0.6
12/31 15:10	67.7	↑0.9
12/31 15:20	69.0	↑1.3
12/31 15:30	70.7	↑1.7
12/31 15:40	72.7	↑2.0
12/31 15:50	75.1	↑2.4
12/31 16:00	77.8	↑2.7
12/31 16:10	80.8	↑3.0
12/31 16:20	84.0	↑3.2
12/31 16:30	87.5	↑3.5
12/31 16:40	91.3	↑3.8
12/31 16:50	95.2	↑3.9
12/31 17:00	99.3	↑4.1
12/31 17:10	103.5	↑4.2
12/31 17:20	107.8	↑4.3
12/31 17:30	112.1	↑4.3
12/31 17:40	116.5	↑4.4
12/31 17:50	120.9	↑4.4
12/31 18:00	125.3	↑4.4
12/31 18:10	129.5	↑4.2
12/31 18:20	133.7	↑4.2
12/31 18:30	137.7	↑4.0
12/31 18:40	141.5	↑3.8
12/31 18:50	145.1	↑3.6
12/31 19:00	148.4	↑3.3
12/31 19:10	151.5	↑3.1
12/31 19:20	154.3	↑2.8
12/31 19:30	156.7	↑2.4
12/31 19:40	158.8	↑2.1
12/31 19:50	160.5	↑1.7
12/31 20:00	161.8	↑1.3
12/31 20:10	162.8	↑1.0
12/31 20:20	163.3	↑0.5	満潮
12/31 20:30	163.3	0
12/31 20:40	163.0	↓-0.3
12/31 20:50	162.2	↓-0.8
12/31 21:00	160.9	↓-1.3
12/31 21:10	159.2	↓-1.7
12/31 21:20	157.1	↓-2.1
12/31 21:30	154.6	↓-2.5
12/31 21:40	151.6	↓-3.0
12/31 21:50	148.3	↓-3.3
12/31 22:00	144.6	↓-3.7
12/31 22:10	140.5	↓-4.1
12/31 22:20	136.1	↓-4.4
12/31 22:30	131.3	↓-4.8
12/31 22:40	126.3	↓-5.0
12/31 22:50	121.1	↓-5.2
12/31 23:00	115.6	↓-5.5
12/31 23:10	109.9	↓-5.7
12/31 23:20	104.1	↓-5.8
12/31 23:30	98.1	↓-6.0
12/31 23:40	92.1	↓-6.0
12/31 23:50	86.0	↓-6.1	最大潮位差