13 (火)	04:47	10:02	15:35	22:24
	113cm	64cm	117cm	6cm
大潮 出 06:28 入 17:18 出 06:03 入 17:12

那珂湊（茨城）2029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	28.0	↑3.5
2/13 00:10	31.7	↑3.7
2/13 00:20	35.5	↑3.8
2/13 00:30	39.4	↑3.9
2/13 00:40	43.4	↑4.0
2/13 00:50	47.5	↑4.1
2/13 01:00	51.6	↑4.1
2/13 01:10	55.8	↑4.2
2/13 01:20	60.0	↑4.2
2/13 01:30	64.1	↑4.1
2/13 01:40	68.2	↑4.1
2/13 01:50	72.2	↑4.0
2/13 02:00	76.2	↑4.0
2/13 02:10	80.0	↑3.8
2/13 02:20	83.7	↑3.7
2/13 02:30	87.2	↑3.5
2/13 02:40	90.6	↑3.4
2/13 02:50	93.7	↑3.1
2/13 03:00	96.7	↑3.0
2/13 03:10	99.4	↑2.7
2/13 03:20	101.9	↑2.5
2/13 03:30	104.1	↑2.2
2/13 03:40	106.1	↑2.0
2/13 03:50	107.8	↑1.7
2/13 04:00	109.2	↑1.4
2/13 04:10	110.3	↑1.1
2/13 04:20	111.2	↑0.9
2/13 04:30	111.8	↑0.6
2/13 04:40	112.1	↑0.3	満潮
2/13 04:50	112.1	0
2/13 05:00	111.8	↓-0.3
2/13 05:10	111.3	↓-0.5
2/13 05:20	110.6	↓-0.7
2/13 05:30	109.6	↓-1.0
2/13 05:40	108.3	↓-1.3
2/13 05:50	106.9	↓-1.4
2/13 06:00	105.3	↓-1.6
2/13 06:10	103.5	↓-1.8
2/13 06:20	101.5	↓-2.0
2/13 06:30	99.4	↓-2.1
2/13 06:40	97.2	↓-2.2
2/13 06:50	94.9	↓-2.3
2/13 07:00	92.6	↓-2.3
2/13 07:10	90.2	↓-2.4
2/13 07:20	87.8	↓-2.4
2/13 07:30	85.4	↓-2.4
2/13 07:40	83.0	↓-2.4
2/13 07:50	80.7	↓-2.3
2/13 08:00	78.4	↓-2.3
2/13 08:10	76.3	↓-2.1
2/13 08:20	74.2	↓-2.1
2/13 08:30	72.3	↓-1.9
2/13 08:40	70.5	↓-1.8
2/13 08:50	68.9	↓-1.6
2/13 09:00	67.5	↓-1.4
2/13 09:10	66.3	↓-1.2
2/13 09:20	65.3	↓-1.0
2/13 09:30	64.5	↓-0.8
2/13 09:40	63.9	↓-0.6
2/13 09:50	63.5	↓-0.4
2/13 10:00	63.4	↓-0.1	干潮
2/13 10:10	63.4	0
2/13 10:20	63.7	↑0.3
2/13 10:30	64.3	↑0.6
2/13 10:40	65.0	↑0.7
2/13 10:50	66.0	↑1.0
2/13 11:00	67.2	↑1.2
2/13 11:10	68.5	↑1.3
2/13 11:20	70.1	↑1.6
2/13 11:30	71.8	↑1.7
2/13 11:40	73.6	↑1.8
2/13 11:50	75.7	↑2.1
2/13 12:00	77.8	↑2.1
2/13 12:10	80.0	↑2.2
2/13 12:20	82.4	↑2.4
2/13 12:30	84.8	↑2.4
2/13 12:40	87.2	↑2.4
2/13 12:50	89.7	↑2.5
2/13 13:00	92.2	↑2.5
2/13 13:10	94.7	↑2.5
2/13 13:20	97.1	↑2.4
2/13 13:30	99.5	↑2.4
2/13 13:40	101.8	↑2.3
2/13 13:50	104.0	↑2.2
2/13 14:00	106.1	↑2.1
2/13 14:10	108.1	↑2.0
2/13 14:20	109.9	↑1.8
2/13 14:30	111.5	↑1.6
2/13 14:40	113.0	↑1.5
2/13 14:50	114.2	↑1.2
2/13 15:00	115.2	↑1.0
2/13 15:10	116.0	↑0.8
2/13 15:20	116.5	↑0.5
2/13 15:30	116.7	↑0.2	満潮
2/13 15:40	116.7	0
2/13 15:50	116.4	↓-0.3
2/13 16:00	115.8	↓-0.6
2/13 16:10	115.0	↓-0.8
2/13 16:20	113.8	↓-1.2
2/13 16:30	112.3	↓-1.5
2/13 16:40	110.6	↓-1.7
2/13 16:50	108.6	↓-2.0
2/13 17:00	106.3	↓-2.3
2/13 17:10	103.7	↓-2.6
2/13 17:20	100.9	↓-2.8
2/13 17:30	97.8	↓-3.1
2/13 17:40	94.5	↓-3.3
2/13 17:50	91.0	↓-3.5
2/13 18:00	87.4	↓-3.6
2/13 18:10	83.5	↓-3.9
2/13 18:20	79.5	↓-4.0
2/13 18:30	75.4	↓-4.1
2/13 18:40	71.2	↓-4.2
2/13 18:50	66.9	↓-4.3
2/13 19:00	62.6	↓-4.3
2/13 19:10	58.3	↓-4.3
2/13 19:20	53.9	↓-4.4	最大潮位差
2/13 19:30	49.7	↓-4.2
2/13 19:40	45.4	↓-4.3
2/13 19:50	41.3	↓-4.1
2/13 20:00	37.3	↓-4.0
2/13 20:10	33.4	↓-3.9
2/13 20:20	29.8	↓-3.6
2/13 20:30	26.3	↓-3.5
2/13 20:40	23.0	↓-3.3
2/13 20:50	20.0	↓-3.0
2/13 21:00	17.2	↓-2.8
2/13 21:10	14.7	↓-2.5
2/13 21:20	12.4	↓-2.3
2/13 21:30	10.5	↓-1.9
2/13 21:40	8.9	↓-1.6
2/13 21:50	7.6	↓-1.3
2/13 22:00	6.7	↓-0.9
2/13 22:10	6.1	↓-0.6
2/13 22:20	5.8	↓-0.3	干潮
2/13 22:30	5.8	0
2/13 22:40	6.2	↑0.4
2/13 22:50	6.9	↑0.7
2/13 23:00	8.0	↑1.1
2/13 23:10	9.3	↑1.3
2/13 23:20	11.0	↑1.7
2/13 23:30	12.9	↑1.9
2/13 23:40	15.2	↑2.3
2/13 23:50	17.7	↑2.5