12 (木)	05:44	00:17	21:35	13:33
	109cm	80cm	92cm	5cm
小潮 出 05:10 入 18:10 出 08:32 入 23:56 潮干狩り ◎ 11:03～16:17

那珂湊（茨城）2046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	79.3	↓-0.2
4/12 00:10	79.1	↓-0.2	干潮
4/12 00:20	79.1	0
4/12 00:30	79.3	↑0.2
4/12 00:40	79.5	↑0.2
4/12 00:50	79.9	↑0.4
4/12 01:00	80.4	↑0.5
4/12 01:10	81.0	↑0.6
4/12 01:20	81.8	↑0.8
4/12 01:30	82.7	↑0.9
4/12 01:40	83.6	↑0.9
4/12 01:50	84.7	↑1.1
4/12 02:00	85.8	↑1.1
4/12 02:10	87.0	↑1.2
4/12 02:20	88.3	↑1.3
4/12 02:30	89.7	↑1.4
4/12 02:40	91.0	↑1.3
4/12 02:50	92.4	↑1.4
4/12 03:00	93.8	↑1.4
4/12 03:10	95.2	↑1.4
4/12 03:20	96.6	↑1.4
4/12 03:30	98.0	↑1.4
4/12 03:40	99.3	↑1.3
4/12 03:50	100.6	↑1.3
4/12 04:00	101.9	↑1.3
4/12 04:10	103.1	↑1.2
4/12 04:20	104.2	↑1.1
4/12 04:30	105.2	↑1.0
4/12 04:40	106.1	↑0.9
4/12 04:50	106.9	↑0.8
4/12 05:00	107.5	↑0.6
4/12 05:10	108.1	↑0.6
4/12 05:20	108.5	↑0.4
4/12 05:30	108.8	↑0.3
4/12 05:40	108.9	↑0.1	満潮
4/12 05:50	108.8	↓-0.1
4/12 06:00	108.6	↓-0.2
4/12 06:10	108.3	↓-0.3
4/12 06:20	107.7	↓-0.6
4/12 06:30	107.0	↓-0.7
4/12 06:40	106.0	↓-1.0
4/12 06:50	104.9	↓-1.1
4/12 07:00	103.6	↓-1.3
4/12 07:10	102.1	↓-1.5
4/12 07:20	100.5	↓-1.6
4/12 07:30	98.6	↓-1.9
4/12 07:40	96.5	↓-2.1
4/12 07:50	94.3	↓-2.2
4/12 08:00	91.8	↓-2.5
4/12 08:10	89.2	↓-2.6
4/12 08:20	86.5	↓-2.7
4/12 08:30	83.5	↓-3.0
4/12 08:40	80.5	↓-3.0
4/12 08:50	77.3	↓-3.2
4/12 09:00	74.0	↓-3.3
4/12 09:10	70.6	↓-3.4
4/12 09:20	67.1	↓-3.5
4/12 09:30	63.5	↓-3.6
4/12 09:40	59.9	↓-3.6
4/12 09:50	56.2	↓-3.7	最大潮位差
4/12 10:00	52.5	↓-3.7	最大潮位差
4/12 10:10	48.9	↓-3.6
4/12 10:20	45.3	↓-3.6
4/12 10:30	41.7	↓-3.6
4/12 10:40	38.2	↓-3.5
4/12 10:50	34.8	↓-3.4
4/12 11:00	31.4	↓-3.4
4/12 11:10	28.3	↓-3.1
4/12 11:20	25.2	↓-3.1
4/12 11:30	22.4	↓-2.8
4/12 11:40	19.7	↓-2.7
4/12 11:50	17.2	↓-2.5
4/12 12:00	14.9	↓-2.3
4/12 12:10	12.8	↓-2.1
4/12 12:20	10.9	↓-1.9
4/12 12:30	9.3	↓-1.6
4/12 12:40	7.9	↓-1.4
4/12 12:50	6.8	↓-1.1
4/12 13:00	5.9	↓-0.9
4/12 13:10	5.2	↓-0.7
4/12 13:20	4.8	↓-0.4
4/12 13:30	4.7	↓-0.1	干潮
4/12 13:40	4.7	0
4/12 13:50	5.0	↑0.3
4/12 14:00	5.6	↑0.6
4/12 14:10	6.3	↑0.7
4/12 14:20	7.3	↑1.0
4/12 14:30	8.5	↑1.2
4/12 14:40	9.8	↑1.3
4/12 14:50	11.4	↑1.6
4/12 15:00	13.1	↑1.7
4/12 15:10	15.0	↑1.9
4/12 15:20	17.0	↑2.0
4/12 15:30	19.2	↑2.2
4/12 15:40	21.4	↑2.2
4/12 15:50	23.8	↑2.4
4/12 16:00	26.3	↑2.5
4/12 16:10	28.9	↑2.6
4/12 16:20	31.6	↑2.7
4/12 16:30	34.3	↑2.7
4/12 16:40	37.0	↑2.7
4/12 16:50	39.9	↑2.9
4/12 17:00	42.7	↑2.8
4/12 17:10	45.5	↑2.8
4/12 17:20	48.4	↑2.9
4/12 17:30	51.2	↑2.8
4/12 17:40	54.0	↑2.8
4/12 17:50	56.8	↑2.8
4/12 18:00	59.6	↑2.8
4/12 18:10	62.2	↑2.6
4/12 18:20	64.9	↑2.7
4/12 18:30	67.4	↑2.5
4/12 18:40	69.8	↑2.4
4/12 18:50	72.2	↑2.4
4/12 19:00	74.4	↑2.2
4/12 19:10	76.5	↑2.1
4/12 19:20	78.5	↑2.0
4/12 19:30	80.4	↑1.9
4/12 19:40	82.1	↑1.7
4/12 19:50	83.7	↑1.6
4/12 20:00	85.1	↑1.4
4/12 20:10	86.4	↑1.3
4/12 20:20	87.5	↑1.1
4/12 20:30	88.5	↑1.0
4/12 20:40	89.3	↑0.8
4/12 20:50	90.0	↑0.7
4/12 21:00	90.5	↑0.5
4/12 21:10	90.8	↑0.3
4/12 21:20	91.1	↑0.3
4/12 21:30	91.2	↑0.1	満潮
4/12 21:40	91.2	0
4/12 21:50	91.1	↓-0.1
4/12 22:00	90.8	↓-0.3
4/12 22:10	90.5	↓-0.3
4/12 22:20	90.2	↓-0.3
4/12 22:30	89.7	↓-0.5
4/12 22:40	89.2	↓-0.5
4/12 22:50	88.7	↓-0.5
4/12 23:00	88.1	↓-0.6
4/12 23:10	87.6	↓-0.5
4/12 23:20	87.0	↓-0.6
4/12 23:30	86.5	↓-0.5
4/12 23:40	86.0	↓-0.5
4/12 23:50	85.6	↓-0.4