31 (月)	08:47	01:24	19:07	13:57
	115cm	13cm	109cm	83cm
中潮 出 06:49 入 16:34 出 10:55 入 22:27

那珂湊（茨城）2057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	22.1	↓-2.3
12/31 00:10	20.0	↓-2.1
12/31 00:20	18.2	↓-1.8
12/31 00:30	16.6	↓-1.6
12/31 00:40	15.3	↓-1.3
12/31 00:50	14.3	↓-1.0
12/31 01:00	13.5	↓-0.8
12/31 01:10	13.0	↓-0.5
12/31 01:20	12.8	↓-0.2	干潮
12/31 01:30	12.9	↑0.1
12/31 01:40	13.2	↑0.3
12/31 01:50	13.8	↑0.6
12/31 02:00	14.7	↑0.9
12/31 02:10	15.8	↑1.1
12/31 02:20	17.2	↑1.4
12/31 02:30	18.8	↑1.6
12/31 02:40	20.6	↑1.8
12/31 02:50	22.6	↑2.0
12/31 03:00	24.9	↑2.3
12/31 03:10	27.3	↑2.4
12/31 03:20	30.0	↑2.7
12/31 03:30	32.8	↑2.8
12/31 03:40	35.7	↑2.9
12/31 03:50	38.8	↑3.1
12/31 04:00	42.1	↑3.3
12/31 04:10	45.4	↑3.3
12/31 04:20	48.8	↑3.4
12/31 04:30	52.4	↑3.6
12/31 04:40	55.9	↑3.5
12/31 04:50	59.5	↑3.6
12/31 05:00	63.2	↑3.7	最大潮位差
12/31 05:10	66.8	↑3.6
12/31 05:20	70.4	↑3.6
12/31 05:30	74.0	↑3.6
12/31 05:40	77.6	↑3.6
12/31 05:50	81.1	↑3.5
12/31 06:00	84.4	↑3.3
12/31 06:10	87.7	↑3.3
12/31 06:20	90.9	↑3.2
12/31 06:30	93.9	↑3.0
12/31 06:40	96.8	↑2.9
12/31 06:50	99.4	↑2.6
12/31 07:00	101.9	↑2.5
12/31 07:10	104.2	↑2.3
12/31 07:20	106.3	↑2.1
12/31 07:30	108.2	↑1.9
12/31 07:40	109.9	↑1.7
12/31 07:50	111.3	↑1.4
12/31 08:00	112.4	↑1.1
12/31 08:10	113.4	↑1.0
12/31 08:20	114.1	↑0.7
12/31 08:30	114.6	↑0.5
12/31 08:40	114.8	↑0.2	満潮
12/31 08:50	114.8	0
12/31 09:00	114.6	↓-0.2
12/31 09:10	114.2	↓-0.4
12/31 09:20	113.6	↓-0.6
12/31 09:30	112.8	↓-0.8
12/31 09:40	111.9	↓-0.9
12/31 09:50	110.8	↓-1.1
12/31 10:00	109.6	↓-1.2
12/31 10:10	108.2	↓-1.4
12/31 10:20	106.8	↓-1.4
12/31 10:30	105.2	↓-1.6
12/31 10:40	103.6	↓-1.6
12/31 10:50	102.0	↓-1.6
12/31 11:00	100.4	↓-1.6
12/31 11:10	98.7	↓-1.7
12/31 11:20	97.0	↓-1.7
12/31 11:30	95.4	↓-1.6
12/31 11:40	93.8	↓-1.6
12/31 11:50	92.3	↓-1.5
12/31 12:00	90.9	↓-1.4
12/31 12:10	89.5	↓-1.4
12/31 12:20	88.2	↓-1.3
12/31 12:30	87.1	↓-1.1
12/31 12:40	86.0	↓-1.1
12/31 12:50	85.1	↓-0.9
12/31 13:00	84.3	↓-0.8
12/31 13:10	83.6	↓-0.7
12/31 13:20	83.0	↓-0.6
12/31 13:30	82.6	↓-0.4
12/31 13:40	82.3	↓-0.3
12/31 13:50	82.2	↓-0.1	干潮
12/31 14:00	82.1	↓-0.1
12/31 14:10	82.2	↑0.1
12/31 14:20	82.5	↑0.3
12/31 14:30	82.8	↑0.3
12/31 14:40	83.3	↑0.5
12/31 14:50	83.9	↑0.6
12/31 15:00	84.6	↑0.7
12/31 15:10	85.4	↑0.8
12/31 15:20	86.3	↑0.9
12/31 15:30	87.3	↑1.0
12/31 15:40	88.3	↑1.0
12/31 15:50	89.4	↑1.1
12/31 16:00	90.6	↑1.2
12/31 16:10	91.8	↑1.2
12/31 16:20	93.1	↑1.3
12/31 16:30	94.4	↑1.3
12/31 16:40	95.7	↑1.3
12/31 16:50	97.0	↑1.3
12/31 17:00	98.3	↑1.3
12/31 17:10	99.6	↑1.3
12/31 17:20	100.8	↑1.2
12/31 17:30	102.0	↑1.2
12/31 17:40	103.2	↑1.2
12/31 17:50	104.3	↑1.1
12/31 18:00	105.2	↑0.9
12/31 18:10	106.1	↑0.9
12/31 18:20	106.9	↑0.8
12/31 18:30	107.5	↑0.6
12/31 18:40	108.0	↑0.5
12/31 18:50	108.4	↑0.4
12/31 19:00	108.6	↑0.2	満潮
12/31 19:10	108.6	0
12/31 19:20	108.4	↓-0.2
12/31 19:30	108.1	↓-0.3
12/31 19:40	107.5	↓-0.6
12/31 19:50	106.8	↓-0.7
12/31 20:00	105.8	↓-1.0
12/31 20:10	104.7	↓-1.1
12/31 20:20	103.3	↓-1.4
12/31 20:30	101.8	↓-1.5
12/31 20:40	100.0	↓-1.8
12/31 20:50	98.1	↓-1.9
12/31 21:00	95.9	↓-2.2
12/31 21:10	93.6	↓-2.3
12/31 21:20	91.2	↓-2.4
12/31 21:30	88.6	↓-2.6
12/31 21:40	85.8	↓-2.8
12/31 21:50	82.9	↓-2.9
12/31 22:00	80.0	↓-2.9
12/31 22:10	76.9	↓-3.1
12/31 22:20	73.8	↓-3.1
12/31 22:30	70.7	↓-3.1
12/31 22:40	67.5	↓-3.2
12/31 22:50	64.3	↓-3.2
12/31 23:00	61.1	↓-3.2
12/31 23:10	58.0	↓-3.1
12/31 23:20	54.9	↓-3.1
12/31 23:30	51.9	↓-3.0
12/31 23:40	49.0	↓-2.9
12/31 23:50	46.2	↓-2.8