12 (火)	07:34	01:18	23:15	15:23
	103cm	73cm	82cm	26cm
小潮 出 05:54 入 17:43 出 10:16 入 00:19 潮干狩り ○ 14:00～16:50

那珂湊（茨城）2030年03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
3/12 00:00	74.7	↓-0.6
3/12 00:10	74.1	↓-0.6
3/12 00:20	73.6	↓-0.5
3/12 00:30	73.1	↓-0.5
3/12 00:40	72.7	↓-0.4
3/12 00:50	72.5	↓-0.2
3/12 01:00	72.2	↓-0.3
3/12 01:10	72.1	↓-0.1	干潮
3/12 01:20	72.1	0
3/12 01:30	72.2	↑0.1
3/12 01:40	72.4	↑0.2
3/12 01:50	72.7	↑0.3
3/12 02:00	73.0	↑0.3
3/12 02:10	73.5	↑0.5
3/12 02:20	74.1	↑0.6
3/12 02:30	74.7	↑0.6
3/12 02:40	75.5	↑0.8
3/12 02:50	76.3	↑0.8
3/12 03:00	77.2	↑0.9
3/12 03:10	78.2	↑1.0
3/12 03:20	79.2	↑1.0
3/12 03:30	80.3	↑1.1
3/12 03:40	81.4	↑1.1
3/12 03:50	82.6	↑1.2
3/12 04:00	83.8	↑1.2
3/12 04:10	85.0	↑1.2
3/12 04:20	86.2	↑1.2
3/12 04:30	87.5	↑1.3
3/12 04:40	88.7	↑1.2
3/12 04:50	90.0	↑1.3
3/12 05:00	91.2	↑1.2
3/12 05:10	92.4	↑1.2
3/12 05:20	93.6	↑1.2
3/12 05:30	94.7	↑1.1
3/12 05:40	95.8	↑1.1
3/12 05:50	96.9	↑1.1
3/12 06:00	97.9	↑1.0
3/12 06:10	98.8	↑0.9
3/12 06:20	99.6	↑0.8
3/12 06:30	100.4	↑0.8
3/12 06:40	101.0	↑0.6
3/12 06:50	101.6	↑0.6
3/12 07:00	102.1	↑0.5
3/12 07:10	102.4	↑0.3
3/12 07:20	102.7	↑0.3
3/12 07:30	102.8	↑0.1	満潮
3/12 07:40	102.8	0
3/12 07:50	102.6	↓-0.2
3/12 08:00	102.3	↓-0.3
3/12 08:10	101.9	↓-0.4
3/12 08:20	101.3	↓-0.6
3/12 08:30	100.5	↓-0.8
3/12 08:40	99.6	↓-0.9
3/12 08:50	98.5	↓-1.1
3/12 09:00	97.3	↓-1.2
3/12 09:10	95.9	↓-1.4
3/12 09:20	94.4	↓-1.5
3/12 09:30	92.7	↓-1.7
3/12 09:40	90.8	↓-1.9
3/12 09:50	88.9	↓-1.9
3/12 10:00	86.8	↓-2.1
3/12 10:10	84.5	↓-2.3
3/12 10:20	82.2	↓-2.3
3/12 10:30	79.8	↓-2.4
3/12 10:40	77.3	↓-2.5
3/12 10:50	74.7	↓-2.6
3/12 11:00	72.0	↓-2.7
3/12 11:10	69.4	↓-2.6
3/12 11:20	66.6	↓-2.8	最大潮位差
3/12 11:30	63.9	↓-2.7
3/12 11:40	61.2	↓-2.7
3/12 11:50	58.5	↓-2.7
3/12 12:00	55.8	↓-2.7
3/12 12:10	53.1	↓-2.7
3/12 12:20	50.6	↓-2.5
3/12 12:30	48.0	↓-2.6
3/12 12:40	45.6	↓-2.4
3/12 12:50	43.3	↓-2.3
3/12 13:00	41.1	↓-2.2
3/12 13:10	39.0	↓-2.1
3/12 13:20	37.1	↓-1.9
3/12 13:30	35.2	↓-1.9
3/12 13:40	33.6	↓-1.6
3/12 13:50	32.0	↓-1.6
3/12 14:00	30.7	↓-1.3
3/12 14:10	29.4	↓-1.3
3/12 14:20	28.4	↓-1.0
3/12 14:30	27.5	↓-0.9
3/12 14:40	26.8	↓-0.7
3/12 14:50	26.2	↓-0.6
3/12 15:00	25.8	↓-0.4
3/12 15:10	25.5	↓-0.3
3/12 15:20	25.4	↓-0.1	干潮
3/12 15:30	25.5	↑0.1
3/12 15:40	25.6	↑0.1
3/12 15:50	26.0	↑0.4
3/12 16:00	26.5	↑0.5
3/12 16:10	27.1	↑0.6
3/12 16:20	27.8	↑0.7
3/12 16:30	28.7	↑0.9
3/12 16:40	29.7	↑1.0
3/12 16:50	30.8	↑1.1
3/12 17:00	32.0	↑1.2
3/12 17:10	33.3	↑1.3
3/12 17:20	34.7	↑1.4
3/12 17:30	36.2	↑1.5
3/12 17:40	37.8	↑1.6
3/12 17:50	39.4	↑1.6
3/12 18:00	41.1	↑1.7
3/12 18:10	42.9	↑1.8
3/12 18:20	44.7	↑1.8
3/12 18:30	46.6	↑1.9
3/12 18:40	48.5	↑1.9
3/12 18:50	50.4	↑1.9
3/12 19:00	52.3	↑1.9
3/12 19:10	54.2	↑1.9
3/12 19:20	56.2	↑2.0
3/12 19:30	58.1	↑1.9
3/12 19:40	60.0	↑1.9
3/12 19:50	61.9	↑1.9
3/12 20:00	63.7	↑1.8
3/12 20:10	65.5	↑1.8
3/12 20:20	67.2	↑1.7
3/12 20:30	68.8	↑1.6
3/12 20:40	70.4	↑1.6
3/12 20:50	71.9	↑1.5
3/12 21:00	73.2	↑1.3
3/12 21:10	74.5	↑1.3
3/12 21:20	75.7	↑1.2
3/12 21:30	76.8	↑1.1
3/12 21:40	77.8	↑1.0
3/12 21:50	78.6	↑0.8
3/12 22:00	79.4	↑0.8
3/12 22:10	80.0	↑0.6
3/12 22:20	80.6	↑0.6
3/12 22:30	81.0	↑0.4
3/12 22:40	81.4	↑0.4
3/12 22:50	81.6	↑0.2
3/12 23:00	81.7	↑0.1
3/12 23:10	81.8	↑0.1	満潮
3/12 23:20	81.8	0
3/12 23:30	81.7	↓-0.1
3/12 23:40	81.6	↓-0.1
3/12 23:50	81.4	↓-0.2