12 (日)	05:42	00:03	19:37	12:31
	107cm	57cm	102cm	8cm
中潮 出 05:09 入 18:10 出 07:59 入 22:11 潮干狩り ◎ 10:22～14:45

那珂湊（茨城）2054年04月12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
4/12 00:00	56.8	↓-0.1	干潮
4/12 00:10	56.9	↑0.1
4/12 00:20	57.2	↑0.3
4/12 00:30	57.7	↑0.5
4/12 00:40	58.4	↑0.7
4/12 00:50	59.3	↑0.9
4/12 01:00	60.4	↑1.1
4/12 01:10	61.7	↑1.3
4/12 01:20	63.1	↑1.4
4/12 01:30	64.7	↑1.6
4/12 01:40	66.4	↑1.7
4/12 01:50	68.3	↑1.9
4/12 02:00	70.3	↑2.0
4/12 02:10	72.3	↑2.0
4/12 02:20	74.4	↑2.1
4/12 02:30	76.6	↑2.2
4/12 02:40	78.8	↑2.2
4/12 02:50	81.0	↑2.2
4/12 03:00	83.3	↑2.3
4/12 03:10	85.5	↑2.2
4/12 03:20	87.7	↑2.2
4/12 03:30	89.8	↑2.1
4/12 03:40	91.9	↑2.1
4/12 03:50	93.9	↑2.0
4/12 04:00	95.7	↑1.8
4/12 04:10	97.5	↑1.8
4/12 04:20	99.2	↑1.7
4/12 04:30	100.7	↑1.5
4/12 04:40	102.0	↑1.3
4/12 04:50	103.2	↑1.2
4/12 05:00	104.2	↑1.0
4/12 05:10	105.0	↑0.8
4/12 05:20	105.6	↑0.6
4/12 05:30	105.9	↑0.3
4/12 05:40	106.1	↑0.2	満潮
4/12 05:50	106.0	↓-0.1
4/12 06:00	105.6	↓-0.4
4/12 06:10	105.1	↓-0.5
4/12 06:20	104.2	↓-0.9
4/12 06:30	103.2	↓-1.0
4/12 06:40	101.8	↓-1.4
4/12 06:50	100.2	↓-1.6
4/12 07:00	98.4	↓-1.8
4/12 07:10	96.3	↓-2.1
4/12 07:20	94.0	↓-2.3
4/12 07:30	91.5	↓-2.5
4/12 07:40	88.7	↓-2.8
4/12 07:50	85.8	↓-2.9
4/12 08:00	82.7	↓-3.1
4/12 08:10	79.4	↓-3.3
4/12 08:20	75.9	↓-3.5
4/12 08:30	72.3	↓-3.6
4/12 08:40	68.6	↓-3.7
4/12 08:50	64.8	↓-3.8
4/12 09:00	61.0	↓-3.8
4/12 09:10	57.1	↓-3.9	最大潮位差
4/12 09:20	53.2	↓-3.9	最大潮位差
4/12 09:30	49.4	↓-3.8
4/12 09:40	45.5	↓-3.9	最大潮位差
4/12 09:50	41.7	↓-3.8
4/12 10:00	38.1	↓-3.6
4/12 10:10	34.5	↓-3.6
4/12 10:20	31.1	↓-3.4
4/12 10:30	27.8	↓-3.3
4/12 10:40	24.8	↓-3.0
4/12 10:50	21.9	↓-2.9
4/12 11:00	19.3	↓-2.6
4/12 11:10	16.9	↓-2.4
4/12 11:20	14.7	↓-2.2
4/12 11:30	12.8	↓-1.9
4/12 11:40	11.2	↓-1.6
4/12 11:50	9.9	↓-1.3
4/12 12:00	8.9	↓-1.0
4/12 12:10	8.2	↓-0.7
4/12 12:20	7.7	↓-0.5
4/12 12:30	7.6	↓-0.1	干潮
4/12 12:40	7.8	↑0.2
4/12 12:50	8.2	↑0.4
4/12 13:00	8.9	↑0.7
4/12 13:10	9.9	↑1.0
4/12 13:20	11.2	↑1.3
4/12 13:30	12.7	↑1.5
4/12 13:40	14.5	↑1.8
4/12 13:50	16.4	↑1.9
4/12 14:00	18.6	↑2.2
4/12 14:10	21.0	↑2.4
4/12 14:20	23.6	↑2.6
4/12 14:30	26.3	↑2.7
4/12 14:40	29.2	↑2.9
4/12 14:50	32.2	↑3.0
4/12 15:00	35.4	↑3.2
4/12 15:10	38.6	↑3.2
4/12 15:20	41.9	↑3.3
4/12 15:30	45.2	↑3.3
4/12 15:40	48.6	↑3.4
4/12 15:50	52.0	↑3.4
4/12 16:00	55.5	↑3.5
4/12 16:10	58.9	↑3.4
4/12 16:20	62.3	↑3.4
4/12 16:30	65.6	↑3.3
4/12 16:40	68.9	↑3.3
4/12 16:50	72.1	↑3.2
4/12 17:00	75.2	↑3.1
4/12 17:10	78.1	↑2.9
4/12 17:20	81.0	↑2.9
4/12 17:30	83.7	↑2.7
4/12 17:40	86.3	↑2.6
4/12 17:50	88.7	↑2.4
4/12 18:00	90.9	↑2.2
4/12 18:10	92.9	↑2.0
4/12 18:20	94.7	↑1.8
4/12 18:30	96.3	↑1.6
4/12 18:40	97.7	↑1.4
4/12 18:50	98.9	↑1.2
4/12 19:00	99.8	↑0.9
4/12 19:10	100.5	↑0.7
4/12 19:20	101.0	↑0.5
4/12 19:30	101.3	↑0.3	満潮
4/12 19:40	101.3	0
4/12 19:50	101.1	↓-0.2
4/12 20:00	100.6	↓-0.5
4/12 20:10	100.0	↓-0.6
4/12 20:20	99.2	↓-0.8
4/12 20:30	98.2	↓-1.0
4/12 20:40	97.0	↓-1.2
4/12 20:50	95.7	↓-1.3
4/12 21:00	94.2	↓-1.5
4/12 21:10	92.6	↓-1.6
4/12 21:20	90.9	↓-1.7
4/12 21:30	89.1	↓-1.8
4/12 21:40	87.3	↓-1.8
4/12 21:50	85.4	↓-1.9
4/12 22:00	83.5	↓-1.9
4/12 22:10	81.6	↓-1.9
4/12 22:20	79.7	↓-1.9
4/12 22:30	77.8	↓-1.9
4/12 22:40	76.1	↓-1.7
4/12 22:50	74.4	↓-1.7
4/12 23:00	72.8	↓-1.6
4/12 23:10	71.3	↓-1.5
4/12 23:20	70.0	↓-1.3
4/12 23:30	68.8	↓-1.2
4/12 23:40	67.7	↓-1.1
4/12 23:50	66.8	↓-0.9