31 (火)	10:19	03:34	23:05	17:03
	111cm	51cm	95cm	54cm
小潮 出 06:49 入 16:34 出 12:02 入 00:12

那珂湊（茨城）2041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	79.3	↓-1.9
12/31 00:10	77.3	↓-2.0
12/31 00:20	75.3	↓-2.0
12/31 00:30	73.3	↓-2.0
12/31 00:40	71.3	↓-2.0
12/31 00:50	69.4	↓-1.9
12/31 01:00	67.5	↓-1.9
12/31 01:10	65.6	↓-1.9
12/31 01:20	63.8	↓-1.8
12/31 01:30	62.1	↓-1.7
12/31 01:40	60.5	↓-1.6
12/31 01:50	59.0	↓-1.5
12/31 02:00	57.5	↓-1.5
12/31 02:10	56.3	↓-1.2
12/31 02:20	55.1	↓-1.2
12/31 02:30	54.1	↓-1.0
12/31 02:40	53.2	↓-0.9
12/31 02:50	52.4	↓-0.8
12/31 03:00	51.8	↓-0.6
12/31 03:10	51.4	↓-0.4
12/31 03:20	51.1	↓-0.3
12/31 03:30	51.0	↓-0.1	干潮
12/31 03:40	51.0	0
12/31 03:50	51.2	↑0.2
12/31 04:00	51.6	↑0.4
12/31 04:10	52.1	↑0.5
12/31 04:20	52.7	↑0.6
12/31 04:30	53.5	↑0.8
12/31 04:40	54.5	↑1.0
12/31 04:50	55.6	↑1.1
12/31 05:00	56.9	↑1.3
12/31 05:10	58.2	↑1.3
12/31 05:20	59.8	↑1.6
12/31 05:30	61.4	↑1.6
12/31 05:40	63.1	↑1.7
12/31 05:50	65.0	↑1.9
12/31 06:00	67.0	↑2.0
12/31 06:10	69.0	↑2.0
12/31 06:20	71.1	↑2.1
12/31 06:30	73.3	↑2.2
12/31 06:40	75.5	↑2.2
12/31 06:50	77.8	↑2.3
12/31 07:00	80.1	↑2.3
12/31 07:10	82.5	↑2.4	最大潮位差
12/31 07:20	84.8	↑2.3
12/31 07:30	87.1	↑2.3
12/31 07:40	89.4	↑2.3
12/31 07:50	91.6	↑2.2
12/31 08:00	93.8	↑2.2
12/31 08:10	95.8	↑2.0
12/31 08:20	97.9	↑2.1
12/31 08:30	99.8	↑1.9
12/31 08:40	101.5	↑1.7
12/31 08:50	103.2	↑1.7
12/31 09:00	104.7	↑1.5
12/31 09:10	106.0	↑1.3
12/31 09:20	107.2	↑1.2
12/31 09:30	108.2	↑1.0
12/31 09:40	109.1	↑0.9
12/31 09:50	109.7	↑0.6
12/31 10:00	110.1	↑0.4
12/31 10:10	110.4	↑0.3	満潮
12/31 10:20	110.4	0
12/31 10:30	110.3	↓-0.1
12/31 10:40	110.0	↓-0.3
12/31 10:50	109.4	↓-0.6
12/31 11:00	108.7	↓-0.7
12/31 11:10	107.8	↓-0.9
12/31 11:20	106.7	↓-1.1
12/31 11:30	105.5	↓-1.2
12/31 11:40	104.1	↓-1.4
12/31 11:50	102.5	↓-1.6
12/31 12:00	100.9	↓-1.6
12/31 12:10	99.1	↓-1.8
12/31 12:20	97.2	↓-1.9
12/31 12:30	95.2	↓-2.0
12/31 12:40	93.2	↓-2.0
12/31 12:50	91.0	↓-2.2
12/31 13:00	88.9	↓-2.1
12/31 13:10	86.7	↓-2.2
12/31 13:20	84.4	↓-2.3
12/31 13:30	82.2	↓-2.2
12/31 13:40	80.0	↓-2.2
12/31 13:50	77.8	↓-2.2
12/31 14:00	75.6	↓-2.2
12/31 14:10	73.5	↓-2.1
12/31 14:20	71.4	↓-2.1
12/31 14:30	69.5	↓-1.9
12/31 14:40	67.5	↓-2.0
12/31 14:50	65.7	↓-1.8
12/31 15:00	64.0	↓-1.7
12/31 15:10	62.4	↓-1.6
12/31 15:20	60.9	↓-1.5
12/31 15:30	59.5	↓-1.4
12/31 15:40	58.2	↓-1.3
12/31 15:50	57.1	↓-1.1
12/31 16:00	56.1	↓-1.0
12/31 16:10	55.3	↓-0.8
12/31 16:20	54.6	↓-0.7
12/31 16:30	54.0	↓-0.6
12/31 16:40	53.6	↓-0.4
12/31 16:50	53.3	↓-0.3
12/31 17:00	53.2	↓-0.1	干潮
12/31 17:10	53.3	↑0.1
12/31 17:20	53.4	↑0.1
12/31 17:30	53.8	↑0.4
12/31 17:40	54.3	↑0.5
12/31 17:50	54.9	↑0.6
12/31 18:00	55.7	↑0.8
12/31 18:10	56.6	↑0.9
12/31 18:20	57.6	↑1.0
12/31 18:30	58.7	↑1.1
12/31 18:40	60.0	↑1.3
12/31 18:50	61.4	↑1.4
12/31 19:00	62.8	↑1.4
12/31 19:10	64.4	↑1.6
12/31 19:20	66.0	↑1.6
12/31 19:30	67.7	↑1.7
12/31 19:40	69.4	↑1.7
12/31 19:50	71.2	↑1.8
12/31 20:00	73.0	↑1.8
12/31 20:10	74.7	↑1.7
12/31 20:20	76.5	↑1.8
12/31 20:30	78.3	↑1.8
12/31 20:40	80.0	↑1.7
12/31 20:50	81.7	↑1.7
12/31 21:00	83.3	↑1.6
12/31 21:10	84.9	↑1.6
12/31 21:20	86.3	↑1.4
12/31 21:30	87.7	↑1.4
12/31 21:40	89.0	↑1.3
12/31 21:50	90.1	↑1.1
12/31 22:00	91.1	↑1.0
12/31 22:10	92.0	↑0.9
12/31 22:20	92.7	↑0.7
12/31 22:30	93.3	↑0.6
12/31 22:40	93.7	↑0.4
12/31 22:50	94.0	↑0.3
12/31 23:00	94.1	↑0.1	満潮
12/31 23:10	94.1	0
12/31 23:20	94.0	↓-0.1
12/31 23:30	93.7	↓-0.3
12/31 23:40	93.2	↓-0.5
12/31 23:50	92.7	↓-0.5