31 (土)	08:15	00:54	18:30	13:16
	117cm	7cm	114cm	83cm
中潮 出 06:49 入 16:34 出 21:49 入 10:14

那珂湊（茨城）2061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	11.0	↓-1.7
12/31 00:10	9.6	↓-1.4
12/31 00:20	8.4	↓-1.2
12/31 00:30	7.6	↓-0.8
12/31 00:40	7.1	↓-0.5
12/31 00:50	6.8	↓-0.3	干潮
12/31 01:00	6.9	↑0.1
12/31 01:10	7.2	↑0.3
12/31 01:20	7.9	↑0.7
12/31 01:30	8.8	↑0.9
12/31 01:40	10.1	↑1.3
12/31 01:50	11.5	↑1.4
12/31 02:00	13.3	↑1.8
12/31 02:10	15.3	↑2.0
12/31 02:20	17.5	↑2.2
12/31 02:30	20.0	↑2.5
12/31 02:40	22.7	↑2.7
12/31 02:50	25.5	↑2.8
12/31 03:00	28.6	↑3.1
12/31 03:10	31.8	↑3.2
12/31 03:20	35.2	↑3.4
12/31 03:30	38.7	↑3.5
12/31 03:40	42.3	↑3.6
12/31 03:50	46.0	↑3.7
12/31 04:00	49.8	↑3.8
12/31 04:10	53.7	↑3.9	最大潮位差
12/31 04:20	57.6	↑3.9	最大潮位差
12/31 04:30	61.5	↑3.9	最大潮位差
12/31 04:40	65.4	↑3.9	最大潮位差
12/31 04:50	69.3	↑3.9	最大潮位差
12/31 05:00	73.2	↑3.9	最大潮位差
12/31 05:10	77.0	↑3.8
12/31 05:20	80.7	↑3.7
12/31 05:30	84.3	↑3.6
12/31 05:40	87.8	↑3.5
12/31 05:50	91.1	↑3.3
12/31 06:00	94.3	↑3.2
12/31 06:10	97.3	↑3.0
12/31 06:20	100.2	↑2.9
12/31 06:30	102.8	↑2.6
12/31 06:40	105.2	↑2.4
12/31 06:50	107.4	↑2.2
12/31 07:00	109.3	↑1.9
12/31 07:10	111.0	↑1.7
12/31 07:20	112.5	↑1.5
12/31 07:30	113.7	↑1.2
12/31 07:40	114.6	↑0.9
12/31 07:50	115.3	↑0.7
12/31 08:00	115.8	↑0.5
12/31 08:10	116.0	↑0.2	満潮
12/31 08:20	116.0	0
12/31 08:30	115.7	↓-0.3
12/31 08:40	115.3	↓-0.4
12/31 08:50	114.6	↓-0.7
12/31 09:00	113.7	↓-0.9
12/31 09:10	112.7	↓-1.0
12/31 09:20	111.5	↓-1.2
12/31 09:30	110.2	↓-1.3
12/31 09:40	108.7	↓-1.5
12/31 09:50	107.2	↓-1.5
12/31 10:00	105.6	↓-1.6
12/31 10:10	103.9	↓-1.7
12/31 10:20	102.2	↓-1.7
12/31 10:30	100.4	↓-1.8
12/31 10:40	98.7	↓-1.7
12/31 10:50	97.0	↓-1.7
12/31 11:00	95.3	↓-1.7
12/31 11:10	93.7	↓-1.6
12/31 11:20	92.1	↓-1.6
12/31 11:30	90.6	↓-1.5
12/31 11:40	89.3	↓-1.3
12/31 11:50	88.0	↓-1.3
12/31 12:00	86.8	↓-1.2
12/31 12:10	85.8	↓-1.0
12/31 12:20	84.9	↓-0.9
12/31 12:30	84.2	↓-0.7
12/31 12:40	83.6	↓-0.6
12/31 12:50	83.1	↓-0.5
12/31 13:00	82.8	↓-0.3
12/31 13:10	82.7	↓-0.1	干潮
12/31 13:20	82.7	0
12/31 13:30	82.8	↑0.1
12/31 13:40	83.1	↑0.3
12/31 13:50	83.6	↑0.5
12/31 14:00	84.1	↑0.5
12/31 14:10	84.8	↑0.7
12/31 14:20	85.7	↑0.9
12/31 14:30	86.6	↑0.9
12/31 14:40	87.6	↑1.0
12/31 14:50	88.8	↑1.2
12/31 15:00	90.0	↑1.2
12/31 15:10	91.3	↑1.3
12/31 15:20	92.7	↑1.4
12/31 15:30	94.1	↑1.4
12/31 15:40	95.6	↑1.5
12/31 15:50	97.1	↑1.5
12/31 16:00	98.6	↑1.5
12/31 16:10	100.1	↑1.5
12/31 16:20	101.6	↑1.5
12/31 16:30	103.1	↑1.5
12/31 16:40	104.5	↑1.4
12/31 16:50	105.9	↑1.4
12/31 17:00	107.3	↑1.4
12/31 17:10	108.5	↑1.2
12/31 17:20	109.7	↑1.2
12/31 17:30	110.7	↑1.0
12/31 17:40	111.6	↑0.9
12/31 17:50	112.4	↑0.8
12/31 18:00	113.0	↑0.6
12/31 18:10	113.4	↑0.4
12/31 18:20	113.7	↑0.3	満潮
12/31 18:30	113.8	↑0.1	満潮
12/31 18:40	113.7	↓-0.1
12/31 18:50	113.4	↓-0.3
12/31 19:00	112.8	↓-0.6
12/31 19:10	112.1	↓-0.7
12/31 19:20	111.1	↓-1.0
12/31 19:30	109.9	↓-1.2
12/31 19:40	108.5	↓-1.4
12/31 19:50	106.8	↓-1.7
12/31 20:00	104.9	↓-1.9
12/31 20:10	102.8	↓-2.1
12/31 20:20	100.5	↓-2.3
12/31 20:30	98.0	↓-2.5
12/31 20:40	95.3	↓-2.7
12/31 20:50	92.5	↓-2.8
12/31 21:00	89.5	↓-3.0
12/31 21:10	86.3	↓-3.2
12/31 21:20	83.0	↓-3.3
12/31 21:30	79.6	↓-3.4
12/31 21:40	76.2	↓-3.4
12/31 21:50	72.7	↓-3.5
12/31 22:00	69.1	↓-3.6
12/31 22:10	65.5	↓-3.6
12/31 22:20	61.9	↓-3.6
12/31 22:30	58.4	↓-3.5
12/31 22:40	54.9	↓-3.5
12/31 22:50	51.5	↓-3.4
12/31 23:00	48.1	↓-3.4
12/31 23:10	44.9	↓-3.2
12/31 23:20	41.8	↓-3.1
12/31 23:30	38.9	↓-2.9
12/31 23:40	36.1	↓-2.8
12/31 23:50	33.6	↓-2.5