31 (木)	01:07	05:25	11:26	19:10
	95cm	82cm	120cm	20cm
若潮 出 06:49 入 16:34 出 02:18 入 12:45

那珂湊（茨城）2048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	91.6	↑1.0
12/31 00:10	92.4	↑0.8
12/31 00:20	93.1	↑0.7
12/31 00:30	93.6	↑0.5
12/31 00:40	94.0	↑0.4
12/31 00:50	94.3	↑0.3
12/31 01:00	94.4	↑0.1	満潮
12/31 01:10	94.4	0
12/31 01:20	94.3	↓-0.1
12/31 01:30	94.1	↓-0.2
12/31 01:40	93.8	↓-0.3
12/31 01:50	93.4	↓-0.4
12/31 02:00	92.9	↓-0.5
12/31 02:10	92.3	↓-0.6
12/31 02:20	91.7	↓-0.6
12/31 02:30	91.0	↓-0.7
12/31 02:40	90.3	↓-0.7
12/31 02:50	89.5	↓-0.8
12/31 03:00	88.7	↓-0.8
12/31 03:10	87.9	↓-0.8
12/31 03:20	87.2	↓-0.7
12/31 03:30	86.4	↓-0.8
12/31 03:40	85.6	↓-0.8
12/31 03:50	84.9	↓-0.7
12/31 04:00	84.2	↓-0.7
12/31 04:10	83.6	↓-0.6
12/31 04:20	83.0	↓-0.6
12/31 04:30	82.5	↓-0.5
12/31 04:40	82.0	↓-0.5
12/31 04:50	81.7	↓-0.3
12/31 05:00	81.4	↓-0.3
12/31 05:10	81.2	↓-0.2
12/31 05:20	81.1	↓-0.1	干潮
12/31 05:30	81.1	0
12/31 05:40	81.2	↑0.1
12/31 05:50	81.5	↑0.3
12/31 06:00	81.8	↑0.3
12/31 06:10	82.3	↑0.5
12/31 06:20	82.8	↑0.5
12/31 06:30	83.5	↑0.7
12/31 06:40	84.3	↑0.8
12/31 06:50	85.2	↑0.9
12/31 07:00	86.2	↑1.0
12/31 07:10	87.3	↑1.1
12/31 07:20	88.5	↑1.2
12/31 07:30	89.8	↑1.3
12/31 07:40	91.2	↑1.4
12/31 07:50	92.7	↑1.5
12/31 08:00	94.2	↑1.5
12/31 08:10	95.8	↑1.6
12/31 08:20	97.4	↑1.6
12/31 08:30	99.1	↑1.7
12/31 08:40	100.8	↑1.7
12/31 08:50	102.5	↑1.7
12/31 09:00	104.2	↑1.7
12/31 09:10	105.8	↑1.6
12/31 09:20	107.5	↑1.7
12/31 09:30	109.1	↑1.6
12/31 09:40	110.6	↑1.5
12/31 09:50	112.1	↑1.5
12/31 10:00	113.4	↑1.3
12/31 10:10	114.7	↑1.3
12/31 10:20	115.8	↑1.1
12/31 10:30	116.8	↑1.0
12/31 10:40	117.7	↑0.9
12/31 10:50	118.4	↑0.7
12/31 11:00	119.0	↑0.6
12/31 11:10	119.3	↑0.3
12/31 11:20	119.5	↑0.2	満潮
12/31 11:30	119.5	0
12/31 11:40	119.3	↓-0.2
12/31 11:50	118.9	↓-0.4
12/31 12:00	118.3	↓-0.6
12/31 12:10	117.5	↓-0.8
12/31 12:20	116.5	↓-1.0
12/31 12:30	115.2	↓-1.3
12/31 12:40	113.8	↓-1.4
12/31 12:50	112.2	↓-1.6
12/31 13:00	110.3	↓-1.9
12/31 13:10	108.3	↓-2.0
12/31 13:20	106.2	↓-2.1
12/31 13:30	103.8	↓-2.4
12/31 13:40	101.3	↓-2.5
12/31 13:50	98.6	↓-2.7
12/31 14:00	95.8	↓-2.8
12/31 14:10	92.9	↓-2.9
12/31 14:20	89.8	↓-3.1
12/31 14:30	86.7	↓-3.1
12/31 14:40	83.5	↓-3.2
12/31 14:50	80.2	↓-3.3
12/31 15:00	76.8	↓-3.4	最大潮位差
12/31 15:10	73.4	↓-3.4	最大潮位差
12/31 15:20	70.0	↓-3.4	最大潮位差
12/31 15:30	66.6	↓-3.4	最大潮位差
12/31 15:40	63.2	↓-3.4	最大潮位差
12/31 15:50	59.8	↓-3.4	最大潮位差
12/31 16:00	56.5	↓-3.3
12/31 16:10	53.2	↓-3.3
12/31 16:20	50.0	↓-3.2
12/31 16:30	46.9	↓-3.1
12/31 16:40	43.9	↓-3.0
12/31 16:50	41.0	↓-2.9
12/31 17:00	38.3	↓-2.7
12/31 17:10	35.7	↓-2.6
12/31 17:20	33.2	↓-2.5
12/31 17:30	30.9	↓-2.3
12/31 17:40	28.8	↓-2.1
12/31 17:50	26.9	↓-1.9
12/31 18:00	25.2	↓-1.7
12/31 18:10	23.8	↓-1.4
12/31 18:20	22.5	↓-1.3
12/31 18:30	21.5	↓-1.0
12/31 18:40	20.7	↓-0.8
12/31 18:50	20.1	↓-0.6
12/31 19:00	19.8	↓-0.3	干潮
12/31 19:10	19.7	↓-0.1	干潮
12/31 19:20	19.8	↑0.1
12/31 19:30	20.2	↑0.4
12/31 19:40	20.8	↑0.6
12/31 19:50	21.7	↑0.9
12/31 20:00	22.8	↑1.1
12/31 20:10	24.1	↑1.3
12/31 20:20	25.6	↑1.5
12/31 20:30	27.3	↑1.7
12/31 20:40	29.2	↑1.9
12/31 20:50	31.3	↑2.1
12/31 21:00	33.5	↑2.2
12/31 21:10	36.0	↑2.5
12/31 21:20	38.5	↑2.5
12/31 21:30	41.2	↑2.7
12/31 21:40	43.9	↑2.7
12/31 21:50	46.8	↑2.9
12/31 22:00	49.7	↑2.9
12/31 22:10	52.7	↑3.0
12/31 22:20	55.7	↑3.0
12/31 22:30	58.8	↑3.1
12/31 22:40	61.8	↑3.0
12/31 22:50	64.8	↑3.0
12/31 23:00	67.8	↑3.0
12/31 23:10	70.8	↑3.0
12/31 23:20	73.7	↑2.9
12/31 23:30	76.5	↑2.8
12/31 23:40	79.2	↑2.7
12/31 23:50	81.8	↑2.6