13 (水)	02:07	04:30	10:34	18:52
	87cm	86cm	105cm	21cm
若潮 出 06:28 入 17:18 出 12:25 入 02:29

那珂湊（茨城）2030年02月13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
2/13 00:00	81.8	↑1.0
2/13 00:10	82.7	↑0.9
2/13 00:20	83.5	↑0.8
2/13 00:30	84.2	↑0.7
2/13 00:40	84.8	↑0.6
2/13 00:50	85.3	↑0.5
2/13 01:00	85.7	↑0.4
2/13 01:10	86.0	↑0.3
2/13 01:20	86.3	↑0.3
2/13 01:30	86.5	↑0.2
2/13 01:40	86.7	↑0.2
2/13 01:50	86.8	↑0.1
2/13 02:00	86.8	0	満潮
2/13 02:10	86.8	0
2/13 02:20	86.8	0
2/13 02:30	86.7	↓-0.1
2/13 02:40	86.6	↓-0.1
2/13 02:50	86.5	↓-0.1
2/13 03:00	86.4	↓-0.1
2/13 03:10	86.3	↓-0.1
2/13 03:20	86.2	↓-0.1
2/13 03:30	86.0	↓-0.2
2/13 03:40	85.9	↓-0.1
2/13 03:50	85.8	↓-0.1
2/13 04:00	85.7	↓-0.1
2/13 04:10	85.7	0
2/13 04:20	85.6	↓-0.1	干潮
2/13 04:30	85.6	0	干潮
2/13 04:40	85.6	0
2/13 04:50	85.7	↑0.1
2/13 05:00	85.8	↑0.1
2/13 05:10	85.9	↑0.1
2/13 05:20	86.1	↑0.2
2/13 05:30	86.3	↑0.2
2/13 05:40	86.6	↑0.3
2/13 05:50	86.9	↑0.3
2/13 06:00	87.3	↑0.4
2/13 06:10	87.7	↑0.4
2/13 06:20	88.2	↑0.5
2/13 06:30	88.7	↑0.5
2/13 06:40	89.3	↑0.6
2/13 06:50	89.9	↑0.6
2/13 07:00	90.6	↑0.7
2/13 07:10	91.3	↑0.7
2/13 07:20	92.1	↑0.8
2/13 07:30	92.9	↑0.8
2/13 07:40	93.7	↑0.8
2/13 07:50	94.6	↑0.9
2/13 08:00	95.4	↑0.8
2/13 08:10	96.3	↑0.9
2/13 08:20	97.2	↑0.9
2/13 08:30	98.1	↑0.9
2/13 08:40	98.9	↑0.8
2/13 08:50	99.8	↑0.9
2/13 09:00	100.6	↑0.8
2/13 09:10	101.4	↑0.8
2/13 09:20	102.1	↑0.7
2/13 09:30	102.8	↑0.7
2/13 09:40	103.3	↑0.5
2/13 09:50	103.9	↑0.6
2/13 10:00	104.3	↑0.4
2/13 10:10	104.6	↑0.3
2/13 10:20	104.8	↑0.2
2/13 10:30	104.9	↑0.1	満潮
2/13 10:40	104.9	0
2/13 10:50	104.7	↓-0.2
2/13 11:00	104.4	↓-0.3
2/13 11:10	104.0	↓-0.4
2/13 11:20	103.4	↓-0.6
2/13 11:30	102.7	↓-0.7
2/13 11:40	101.9	↓-0.8
2/13 11:50	100.9	↓-1.0
2/13 12:00	99.7	↓-1.2
2/13 12:10	98.4	↓-1.3
2/13 12:20	97.0	↓-1.4
2/13 12:30	95.4	↓-1.6
2/13 12:40	93.7	↓-1.7
2/13 12:50	91.8	↓-1.9
2/13 13:00	89.9	↓-1.9
2/13 13:10	87.8	↓-2.1
2/13 13:20	85.6	↓-2.2
2/13 13:30	83.3	↓-2.3
2/13 13:40	81.0	↓-2.3
2/13 13:50	78.5	↓-2.5
2/13 14:00	76.0	↓-2.5
2/13 14:10	73.4	↓-2.6
2/13 14:20	70.8	↓-2.6
2/13 14:30	68.2	↓-2.6
2/13 14:40	65.5	↓-2.7	最大潮位差
2/13 14:50	62.8	↓-2.7	最大潮位差
2/13 15:00	60.1	↓-2.7	最大潮位差
2/13 15:10	57.4	↓-2.7	最大潮位差
2/13 15:20	54.7	↓-2.7	最大潮位差
2/13 15:30	52.1	↓-2.6
2/13 15:40	49.5	↓-2.6
2/13 15:50	46.9	↓-2.6
2/13 16:00	44.4	↓-2.5
2/13 16:10	42.0	↓-2.4
2/13 16:20	39.7	↓-2.3
2/13 16:30	37.5	↓-2.2
2/13 16:40	35.3	↓-2.2
2/13 16:50	33.3	↓-2.0
2/13 17:00	31.4	↓-1.9
2/13 17:10	29.6	↓-1.8
2/13 17:20	28.0	↓-1.6
2/13 17:30	26.5	↓-1.5
2/13 17:40	25.2	↓-1.3
2/13 17:50	24.0	↓-1.2
2/13 18:00	23.0	↓-1.0
2/13 18:10	22.2	↓-0.8
2/13 18:20	21.5	↓-0.7
2/13 18:30	21.0	↓-0.5
2/13 18:40	20.8	↓-0.2
2/13 18:50	20.6	↓-0.2	干潮
2/13 19:00	20.7	↑0.1
2/13 19:10	21.0	↑0.3
2/13 19:20	21.5	↑0.5
2/13 19:30	22.1	↑0.6
2/13 19:40	22.9	↑0.8
2/13 19:50	23.9	↑1.0
2/13 20:00	25.1	↑1.2
2/13 20:10	26.5	↑1.4
2/13 20:20	28.0	↑1.5
2/13 20:30	29.6	↑1.6
2/13 20:40	31.4	↑1.8
2/13 20:50	33.4	↑2.0
2/13 21:00	35.4	↑2.0
2/13 21:10	37.6	↑2.2
2/13 21:20	39.9	↑2.3
2/13 21:30	42.2	↑2.3
2/13 21:40	44.6	↑2.4
2/13 21:50	47.1	↑2.5
2/13 22:00	49.6	↑2.5
2/13 22:10	52.2	↑2.6
2/13 22:20	54.8	↑2.6
2/13 22:30	57.3	↑2.5
2/13 22:40	59.9	↑2.6
2/13 22:50	62.4	↑2.5
2/13 23:00	64.9	↑2.5
2/13 23:10	67.4	↑2.5
2/13 23:20	69.8	↑2.4
2/13 23:30	72.1	↑2.3
2/13 23:40	74.3	↑2.2
2/13 23:50	76.5	↑2.2