31 (日)	07:36	00:55	18:37	12:49
	149cm	-4cm	178cm	75cm
大潮 出 07:23 入 18:02 出 17:39 入 06:46

長山（沖縄）2028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	2.9	↓-2.8
12/31 00:10	0.5	↓-2.4
12/31 00:20	-1.5	↓-2.0
12/31 00:30	-2.9	↓-1.4
12/31 00:40	-3.9	↓-1.0
12/31 00:50	-4.3	↓-0.4	干潮
12/31 01:00	-4.3	0
12/31 01:10	-3.8	↑0.5
12/31 01:20	-2.8	↑1.0
12/31 01:30	-1.3	↑1.5
12/31 01:40	0.7	↑2.0
12/31 01:50	3.1	↑2.4
12/31 02:00	6.0	↑2.9
12/31 02:10	9.3	↑3.3
12/31 02:20	12.9	↑3.6
12/31 02:30	17.0	↑4.1
12/31 02:40	21.4	↑4.4
12/31 02:50	26.1	↑4.7
12/31 03:00	31.1	↑5.0
12/31 03:10	36.4	↑5.3
12/31 03:20	41.9	↑5.5
12/31 03:30	47.5	↑5.6
12/31 03:40	53.4	↑5.9
12/31 03:50	59.3	↑5.9
12/31 04:00	65.3	↑6.0
12/31 04:10	71.3	↑6.0
12/31 04:20	77.4	↑6.1
12/31 04:30	83.4	↑6.0
12/31 04:40	89.3	↑5.9
12/31 04:50	95.1	↑5.8
12/31 05:00	100.7	↑5.6
12/31 05:10	106.1	↑5.4
12/31 05:20	111.4	↑5.3
12/31 05:30	116.3	↑4.9
12/31 05:40	121.0	↑4.7
12/31 05:50	125.4	↑4.4
12/31 06:00	129.5	↑4.1
12/31 06:10	133.1	↑3.6
12/31 06:20	136.5	↑3.4
12/31 06:30	139.4	↑2.9
12/31 06:40	141.9	↑2.5
12/31 06:50	144.0	↑2.1
12/31 07:00	145.7	↑1.7
12/31 07:10	146.9	↑1.2
12/31 07:20	147.8	↑0.9
12/31 07:30	148.2	↑0.4	満潮
12/31 07:40	148.2	0
12/31 07:50	147.7	↓-0.5
12/31 08:00	146.9	↓-0.8
12/31 08:10	145.8	↓-1.1
12/31 08:20	144.2	↓-1.6
12/31 08:30	142.4	↓-1.8
12/31 08:40	140.2	↓-2.2
12/31 08:50	137.7	↓-2.5
12/31 09:00	135.0	↓-2.7
12/31 09:10	132.0	↓-3.0
12/31 09:20	128.9	↓-3.1
12/31 09:30	125.5	↓-3.4
12/31 09:40	122.1	↓-3.4
12/31 09:50	118.5	↓-3.6
12/31 10:00	114.9	↓-3.6
12/31 10:10	111.2	↓-3.7
12/31 10:20	107.6	↓-3.6
12/31 10:30	104.0	↓-3.6
12/31 10:40	100.5	↓-3.5
12/31 10:50	97.1	↓-3.4
12/31 11:00	93.8	↓-3.3
12/31 11:10	90.7	↓-3.1
12/31 11:20	87.8	↓-2.9
12/31 11:30	85.1	↓-2.7
12/31 11:40	82.7	↓-2.4
12/31 11:50	80.6	↓-2.1
12/31 12:00	78.7	↓-1.9
12/31 12:10	77.2	↓-1.5
12/31 12:20	76.0	↓-1.2
12/31 12:30	75.2	↓-0.8
12/31 12:40	74.7	↓-0.5	干潮
12/31 12:50	74.6	↓-0.1
12/31 13:00	74.9	↑0.3
12/31 13:10	75.5	↑0.6
12/31 13:20	76.5	↑1.0
12/31 13:30	77.9	↑1.4
12/31 13:40	79.6	↑1.7
12/31 13:50	81.7	↑2.1
12/31 14:00	84.2	↑2.5
12/31 14:10	86.9	↑2.7
12/31 14:20	90.0	↑3.1
12/31 14:30	93.4	↑3.4
12/31 14:40	97.0	↑3.6
12/31 14:50	100.8	↑3.8
12/31 15:00	104.9	↑4.1
12/31 15:10	109.1	↑4.2
12/31 15:20	113.5	↑4.4
12/31 15:30	118.0	↑4.5
12/31 15:40	122.6	↑4.6
12/31 15:50	127.2	↑4.6
12/31 16:00	131.8	↑4.6
12/31 16:10	136.4	↑4.6
12/31 16:20	140.9	↑4.5
12/31 16:30	145.3	↑4.4
12/31 16:40	149.6	↑4.3
12/31 16:50	153.7	↑4.1
12/31 17:00	157.5	↑3.8
12/31 17:10	161.1	↑3.6
12/31 17:20	164.5	↑3.4
12/31 17:30	167.5	↑3.0
12/31 17:40	170.1	↑2.6
12/31 17:50	172.4	↑2.3
12/31 18:00	174.3	↑1.9
12/31 18:10	175.7	↑1.4
12/31 18:20	176.7	↑1.0
12/31 18:30	177.3	↑0.6	満潮
12/31 18:40	177.4	↑0.1
12/31 18:50	176.9	↓-0.5
12/31 19:00	176.0	↓-0.9
12/31 19:10	174.6	↓-1.4
12/31 19:20	172.7	↓-1.9
12/31 19:30	170.3	↓-2.4
12/31 19:40	167.4	↓-2.9
12/31 19:50	164.1	↓-3.3
12/31 20:00	160.3	↓-3.8
12/31 20:10	156.0	↓-4.3
12/31 20:20	151.3	↓-4.7
12/31 20:30	146.2	↓-5.1
12/31 20:40	140.8	↓-5.4
12/31 20:50	135.0	↓-5.8
12/31 21:00	128.8	↓-6.2
12/31 21:10	122.4	↓-6.4
12/31 21:20	115.8	↓-6.6
12/31 21:30	108.9	↓-6.9
12/31 21:40	101.9	↓-7.0
12/31 21:50	94.8	↓-7.1
12/31 22:00	87.6	↓-7.2
12/31 22:10	80.3	↓-7.3	最大潮位差
12/31 22:20	73.1	↓-7.2
12/31 22:30	65.9	↓-7.2
12/31 22:40	58.8	↓-7.1
12/31 22:50	51.8	↓-7.0
12/31 23:00	45.0	↓-6.8
12/31 23:10	38.4	↓-6.6
12/31 23:20	32.0	↓-6.4
12/31 23:30	26.0	↓-6.0
12/31 23:40	20.3	↓-5.7
12/31 23:50	14.9	↓-5.4