12 (火)	09:29	02:23	-	17:47
	107cm	79cm	-	28cm
長潮 出 06:29 入 17:17 出 11:35 入 01:37

那珂湊（茨城）2030年02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
2/12 00:00	79.9	0
2/12 00:10	79.8	↓-0.1
2/12 00:20	79.8	0
2/12 00:30	79.6	↓-0.2
2/12 00:40	79.5	↓-0.1
2/12 00:50	79.3	↓-0.2
2/12 01:00	79.1	↓-0.2
2/12 01:10	78.9	↓-0.2
2/12 01:20	78.7	↓-0.2
2/12 01:30	78.6	↓-0.1
2/12 01:40	78.4	↓-0.2
2/12 01:50	78.3	↓-0.1
2/12 02:00	78.2	↓-0.1
2/12 02:10	78.1	↓-0.1
2/12 02:20	78.1	0	干潮
2/12 02:30	78.1	0
2/12 02:40	78.1	0
2/12 02:50	78.2	↑0.1
2/12 03:00	78.4	↑0.2
2/12 03:10	78.6	↑0.2
2/12 03:20	78.9	↑0.3
2/12 03:30	79.2	↑0.3
2/12 03:40	79.6	↑0.4
2/12 03:50	80.0	↑0.4
2/12 04:00	80.5	↑0.5
2/12 04:10	81.1	↑0.6
2/12 04:20	81.7	↑0.6
2/12 04:30	82.4	↑0.7
2/12 04:40	83.1	↑0.7
2/12 04:50	83.8	↑0.7
2/12 05:00	84.6	↑0.8
2/12 05:10	85.5	↑0.9
2/12 05:20	86.3	↑0.8
2/12 05:30	87.3	↑1.0
2/12 05:40	88.2	↑0.9
2/12 05:50	89.2	↑1.0
2/12 06:00	90.2	↑1.0
2/12 06:10	91.3	↑1.1
2/12 06:20	92.3	↑1.0
2/12 06:30	93.4	↑1.1
2/12 06:40	94.5	↑1.1
2/12 06:50	95.5	↑1.0
2/12 07:00	96.6	↑1.1
2/12 07:10	97.7	↑1.1
2/12 07:20	98.7	↑1.0
2/12 07:30	99.7	↑1.0
2/12 07:40	100.7	↑1.0
2/12 07:50	101.6	↑0.9
2/12 08:00	102.5	↑0.9
2/12 08:10	103.3	↑0.8
2/12 08:20	104.1	↑0.8
2/12 08:30	104.8	↑0.7
2/12 08:40	105.4	↑0.6
2/12 08:50	105.9	↑0.5
2/12 09:00	106.3	↑0.4
2/12 09:10	106.5	↑0.2
2/12 09:20	106.7	↑0.2	満潮
2/12 09:30	106.7	0
2/12 09:40	106.6	↓-0.1
2/12 09:50	106.4	↓-0.2
2/12 10:00	106.0	↓-0.4
2/12 10:10	105.5	↓-0.5
2/12 10:20	104.8	↓-0.7
2/12 10:30	104.0	↓-0.8
2/12 10:40	103.0	↓-1.0
2/12 10:50	101.9	↓-1.1
2/12 11:00	100.7	↓-1.2
2/12 11:10	99.3	↓-1.4
2/12 11:20	97.7	↓-1.6
2/12 11:30	96.0	↓-1.7
2/12 11:40	94.2	↓-1.8
2/12 11:50	92.3	↓-1.9
2/12 12:00	90.3	↓-2.0
2/12 12:10	88.1	↓-2.2
2/12 12:20	85.9	↓-2.2
2/12 12:30	83.6	↓-2.3
2/12 12:40	81.2	↓-2.4
2/12 12:50	78.8	↓-2.4
2/12 13:00	76.3	↓-2.5
2/12 13:10	73.8	↓-2.5
2/12 13:20	71.2	↓-2.6	最大潮位差
2/12 13:30	68.7	↓-2.5
2/12 13:40	66.1	↓-2.6	最大潮位差
2/12 13:50	63.6	↓-2.5
2/12 14:00	61.0	↓-2.6	最大潮位差
2/12 14:10	58.6	↓-2.4
2/12 14:20	56.1	↓-2.5
2/12 14:30	53.7	↓-2.4
2/12 14:40	51.4	↓-2.3
2/12 14:50	49.1	↓-2.3
2/12 15:00	47.0	↓-2.1
2/12 15:10	44.9	↓-2.1
2/12 15:20	42.9	↓-2.0
2/12 15:30	41.0	↓-1.9
2/12 15:40	39.2	↓-1.8
2/12 15:50	37.5	↓-1.7
2/12 16:00	36.0	↓-1.5
2/12 16:10	34.5	↓-1.5
2/12 16:20	33.2	↓-1.3
2/12 16:30	32.1	↓-1.1
2/12 16:40	31.0	↓-1.1
2/12 16:50	30.1	↓-0.9
2/12 17:00	29.4	↓-0.7
2/12 17:10	28.8	↓-0.6
2/12 17:20	28.3	↓-0.5
2/12 17:30	28.0	↓-0.3
2/12 17:40	27.9	↓-0.1	干潮
2/12 17:50	27.8	↓-0.1
2/12 18:00	28.0	↑0.2
2/12 18:10	28.3	↑0.3
2/12 18:20	28.7	↑0.4
2/12 18:30	29.3	↑0.6
2/12 18:40	30.0	↑0.7
2/12 18:50	30.9	↑0.9
2/12 19:00	31.9	↑1.0
2/12 19:10	33.0	↑1.1
2/12 19:20	34.3	↑1.3
2/12 19:30	35.6	↑1.3
2/12 19:40	37.1	↑1.5
2/12 19:50	38.7	↑1.6
2/12 20:00	40.4	↑1.7
2/12 20:10	42.1	↑1.7
2/12 20:20	44.0	↑1.9
2/12 20:30	45.9	↑1.9
2/12 20:40	47.8	↑1.9
2/12 20:50	49.8	↑2.0
2/12 21:00	51.9	↑2.1
2/12 21:10	53.9	↑2.0
2/12 21:20	55.9	↑2.0
2/12 21:30	58.0	↑2.1
2/12 21:40	60.0	↑2.0
2/12 21:50	62.0	↑2.0
2/12 22:00	64.0	↑2.0
2/12 22:10	65.9	↑1.9
2/12 22:20	67.8	↑1.9
2/12 22:30	69.6	↑1.8
2/12 22:40	71.3	↑1.7
2/12 22:50	72.9	↑1.6
2/12 23:00	74.5	↑1.6
2/12 23:10	75.9	↑1.4
2/12 23:20	77.3	↑1.4
2/12 23:30	78.6	↑1.3
2/12 23:40	79.8	↑1.2
2/12 23:50	80.8	↑1.0