31 (金)	03:02	07:48	13:28	20:46
	103cm	77cm	121cm	16cm
大潮 出 06:49 入 16:34 出 14:35 入 03:54

那珂湊（茨城）2055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	74.2	↑2.9
12/31 00:10	76.9	↑2.7
12/31 00:20	79.6	↑2.7
12/31 00:30	82.2	↑2.6
12/31 00:40	84.7	↑2.5
12/31 00:50	87.0	↑2.3
12/31 01:00	89.2	↑2.2
12/31 01:10	91.3	↑2.1
12/31 01:20	93.1	↑1.8
12/31 01:30	94.9	↑1.8
12/31 01:40	96.4	↑1.5
12/31 01:50	97.8	↑1.4
12/31 02:00	99.0	↑1.2
12/31 02:10	100.1	↑1.1
12/31 02:20	100.9	↑0.8
12/31 02:30	101.5	↑0.6
12/31 02:40	102.0	↑0.5
12/31 02:50	102.3	↑0.3
12/31 03:00	102.4	↑0.1	満潮
12/31 03:10	102.3	↓-0.1
12/31 03:20	102.1	↓-0.2
12/31 03:30	101.7	↓-0.4
12/31 03:40	101.2	↓-0.5
12/31 03:50	100.5	↓-0.7
12/31 04:00	99.7	↓-0.8
12/31 04:10	98.8	↓-0.9
12/31 04:20	97.7	↓-1.1
12/31 04:30	96.6	↓-1.1
12/31 04:40	95.4	↓-1.2
12/31 04:50	94.1	↓-1.3
12/31 05:00	92.8	↓-1.3
12/31 05:10	91.5	↓-1.3
12/31 05:20	90.1	↓-1.4
12/31 05:30	88.7	↓-1.4
12/31 05:40	87.4	↓-1.3
12/31 05:50	86.0	↓-1.4
12/31 06:00	84.7	↓-1.3
12/31 06:10	83.5	↓-1.2
12/31 06:20	82.3	↓-1.2
12/31 06:30	81.2	↓-1.1
12/31 06:40	80.2	↓-1.0
12/31 06:50	79.4	↓-0.8
12/31 07:00	78.6	↓-0.8
12/31 07:10	78.0	↓-0.6
12/31 07:20	77.5	↓-0.5
12/31 07:30	77.1	↓-0.4
12/31 07:40	77.0	↓-0.1	干潮
12/31 07:50	76.9	↓-0.1
12/31 08:00	77.1	↑0.2
12/31 08:10	77.3	↑0.2
12/31 08:20	77.8	↑0.5
12/31 08:30	78.4	↑0.6
12/31 08:40	79.2	↑0.8
12/31 08:50	80.2	↑1.0
12/31 09:00	81.2	↑1.0
12/31 09:10	82.5	↑1.3
12/31 09:20	83.9	↑1.4
12/31 09:30	85.4	↑1.5
12/31 09:40	87.0	↑1.6
12/31 09:50	88.7	↑1.7
12/31 10:00	90.5	↑1.8
12/31 10:10	92.4	↑1.9
12/31 10:20	94.3	↑1.9
12/31 10:30	96.3	↑2.0
12/31 10:40	98.3	↑2.0
12/31 10:50	100.4	↑2.1
12/31 11:00	102.4	↑2.0
12/31 11:10	104.4	↑2.0
12/31 11:20	106.4	↑2.0
12/31 11:30	108.3	↑1.9
12/31 11:40	110.1	↑1.8
12/31 11:50	111.8	↑1.7
12/31 12:00	113.5	↑1.7
12/31 12:10	115.0	↑1.5
12/31 12:20	116.3	↑1.3
12/31 12:30	117.6	↑1.3
12/31 12:40	118.6	↑1.0
12/31 12:50	119.5	↑0.9
12/31 13:00	120.2	↑0.7
12/31 13:10	120.7	↑0.5
12/31 13:20	120.9	↑0.2	満潮
12/31 13:30	121.0	↑0.1
12/31 13:40	120.8	↓-0.2
12/31 13:50	120.4	↓-0.4
12/31 14:00	119.8	↓-0.6
12/31 14:10	118.9	↓-0.9
12/31 14:20	117.8	↓-1.1
12/31 14:30	116.5	↓-1.3
12/31 14:40	114.9	↓-1.6
12/31 14:50	113.1	↓-1.8
12/31 15:00	111.1	↓-2.0
12/31 15:10	108.8	↓-2.3
12/31 15:20	106.4	↓-2.4
12/31 15:30	103.7	↓-2.7
12/31 15:40	100.9	↓-2.8
12/31 15:50	97.9	↓-3.0
12/31 16:00	94.7	↓-3.2
12/31 16:10	91.4	↓-3.3
12/31 16:20	88.0	↓-3.4
12/31 16:30	84.4	↓-3.6
12/31 16:40	80.7	↓-3.7
12/31 16:50	77.0	↓-3.7
12/31 17:00	73.2	↓-3.8
12/31 17:10	69.4	↓-3.8
12/31 17:20	65.5	↓-3.9	最大潮位差
12/31 17:30	61.7	↓-3.8
12/31 17:40	57.9	↓-3.8
12/31 17:50	54.1	↓-3.8
12/31 18:00	50.4	↓-3.7
12/31 18:10	46.8	↓-3.6
12/31 18:20	43.3	↓-3.5
12/31 18:30	39.9	↓-3.4
12/31 18:40	36.7	↓-3.2
12/31 18:50	33.6	↓-3.1
12/31 19:00	30.8	↓-2.8
12/31 19:10	28.1	↓-2.7
12/31 19:20	25.7	↓-2.4
12/31 19:30	23.5	↓-2.2
12/31 19:40	21.5	↓-2.0
12/31 19:50	19.8	↓-1.7
12/31 20:00	18.4	↓-1.4
12/31 20:10	17.3	↓-1.1
12/31 20:20	16.4	↓-0.9
12/31 20:30	15.8	↓-0.6
12/31 20:40	15.5	↓-0.3	干潮
12/31 20:50	15.5	0
12/31 21:00	15.8	↑0.3
12/31 21:10	16.3	↑0.5
12/31 21:20	17.2	↑0.9
12/31 21:30	18.3	↑1.1
12/31 21:40	19.6	↑1.3
12/31 21:50	21.3	↑1.7
12/31 22:00	23.2	↑1.9
12/31 22:10	25.3	↑2.1
12/31 22:20	27.6	↑2.3
12/31 22:30	30.1	↑2.5
12/31 22:40	32.8	↑2.7
12/31 22:50	35.7	↑2.9
12/31 23:00	38.7	↑3.0
12/31 23:10	41.9	↑3.2
12/31 23:20	45.2	↑3.3
12/31 23:30	48.5	↑3.3
12/31 23:40	52.0	↑3.5
12/31 23:50	55.4	↑3.4