29 (木)	04:39	11:22	18:20	23:29
	110cm	6cm	109cm	63cm
中潮 出 04:48 入 18:24 出 06:24 入 20:27 潮干狩り ◎ 09:13～13:35

那珂湊（茨城）2055年04月29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
4/29 00:00	59.2	↑1.3
4/29 00:10	60.6	↑1.4
4/29 00:20	62.3	↑1.7
4/29 00:30	64.1	↑1.8
4/29 00:40	66.0	↑1.9
4/29 00:50	68.1	↑2.1
4/29 01:00	70.3	↑2.2
4/29 01:10	72.6	↑2.3
4/29 01:20	75.0	↑2.4
4/29 01:30	77.4	↑2.4
4/29 01:40	79.9	↑2.5
4/29 01:50	82.4	↑2.5
4/29 02:00	84.9	↑2.5
4/29 02:10	87.4	↑2.5
4/29 02:20	89.8	↑2.4
4/29 02:30	92.2	↑2.4
4/29 02:40	94.5	↑2.3
4/29 02:50	96.7	↑2.2
4/29 03:00	98.8	↑2.1
4/29 03:10	100.7	↑1.9
4/29 03:20	102.5	↑1.8
4/29 03:30	104.2	↑1.7
4/29 03:40	105.6	↑1.4
4/29 03:50	106.9	↑1.3
4/29 04:00	107.9	↑1.0
4/29 04:10	108.7	↑0.8
4/29 04:20	109.3	↑0.6
4/29 04:30	109.7	↑0.4	満潮
4/29 04:40	109.7	0
4/29 04:50	109.6	↓-0.1
4/29 05:00	109.1	↓-0.5
4/29 05:10	108.4	↓-0.7
4/29 05:20	107.4	↓-1.0
4/29 05:30	106.1	↓-1.3
4/29 05:40	104.5	↓-1.6
4/29 05:50	102.7	↓-1.8
4/29 06:00	100.6	↓-2.1
4/29 06:10	98.3	↓-2.3
4/29 06:20	95.7	↓-2.6
4/29 06:30	92.8	↓-2.9
4/29 06:40	89.8	↓-3.0
4/29 06:50	86.5	↓-3.3
4/29 07:00	83.0	↓-3.5
4/29 07:10	79.4	↓-3.6
4/29 07:20	75.6	↓-3.8
4/29 07:30	71.7	↓-3.9
4/29 07:40	67.7	↓-4.0
4/29 07:50	63.6	↓-4.1
4/29 08:00	59.5	↓-4.1
4/29 08:10	55.3	↓-4.2	最大潮位差
4/29 08:20	51.2	↓-4.1
4/29 08:30	47.1	↓-4.1
4/29 08:40	43.0	↓-4.1
4/29 08:50	39.0	↓-4.0
4/29 09:00	35.2	↓-3.8
4/29 09:10	31.5	↓-3.7
4/29 09:20	27.9	↓-3.6
4/29 09:30	24.6	↓-3.3
4/29 09:40	21.5	↓-3.1
4/29 09:50	18.6	↓-2.9
4/29 10:00	15.9	↓-2.7
4/29 10:10	13.6	↓-2.3
4/29 10:20	11.5	↓-2.1
4/29 10:30	9.7	↓-1.8
4/29 10:40	8.2	↓-1.5
4/29 10:50	7.0	↓-1.2
4/29 11:00	6.2	↓-0.8
4/29 11:10	5.7	↓-0.5
4/29 11:20	5.5	↓-0.2	干潮
4/29 11:30	5.6	↑0.1
4/29 11:40	6.1	↑0.5
4/29 11:50	6.9	↑0.8
4/29 12:00	7.9	↑1.0
4/29 12:10	9.3	↑1.4
4/29 12:20	10.9	↑1.6
4/29 12:30	12.9	↑2.0
4/29 12:40	15.1	↑2.2
4/29 12:50	17.5	↑2.4
4/29 13:00	20.1	↑2.6
4/29 13:10	23.0	↑2.9
4/29 13:20	26.0	↑3.0
4/29 13:30	29.3	↑3.3
4/29 13:40	32.6	↑3.3
4/29 13:50	36.1	↑3.5
4/29 14:00	39.7	↑3.6
4/29 14:10	43.4	↑3.7
4/29 14:20	47.2	↑3.8
4/29 14:30	51.0	↑3.8
4/29 14:40	54.8	↑3.8
4/29 14:50	58.6	↑3.8
4/29 15:00	62.4	↑3.8
4/29 15:10	66.2	↑3.8
4/29 15:20	69.9	↑3.7
4/29 15:30	73.6	↑3.7
4/29 15:40	77.1	↑3.5
4/29 15:50	80.5	↑3.4
4/29 16:00	83.8	↑3.3
4/29 16:10	87.0	↑3.2
4/29 16:20	89.9	↑2.9
4/29 16:30	92.7	↑2.8
4/29 16:40	95.3	↑2.6
4/29 16:50	97.7	↑2.4
4/29 17:00	99.8	↑2.1
4/29 17:10	101.7	↑1.9
4/29 17:20	103.4	↑1.7
4/29 17:30	104.8	↑1.4
4/29 17:40	106.0	↑1.2
4/29 17:50	106.9	↑0.9
4/29 18:00	107.5	↑0.6
4/29 18:10	107.9	↑0.4	満潮
4/29 18:20	108.0	↑0.1	満潮
4/29 18:30	107.9	↓-0.1
4/29 18:40	107.5	↓-0.4
4/29 18:50	106.8	↓-0.7
4/29 19:00	105.9	↓-0.9
4/29 19:10	104.8	↓-1.1
4/29 19:20	103.5	↓-1.3
4/29 19:30	102.0	↓-1.5
4/29 19:40	100.3	↓-1.7
4/29 19:50	98.5	↓-1.8
4/29 20:00	96.5	↓-2.0
4/29 20:10	94.4	↓-2.1
4/29 20:20	92.2	↓-2.2
4/29 20:30	90.0	↓-2.2
4/29 20:40	87.7	↓-2.3
4/29 20:50	85.4	↓-2.3
4/29 21:00	83.1	↓-2.3
4/29 21:10	80.8	↓-2.3
4/29 21:20	78.6	↓-2.2
4/29 21:30	76.4	↓-2.2
4/29 21:40	74.3	↓-2.1
4/29 21:50	72.4	↓-1.9
4/29 22:00	70.6	↓-1.8
4/29 22:10	68.9	↓-1.7
4/29 22:20	67.4	↓-1.5
4/29 22:30	66.1	↓-1.3
4/29 22:40	64.9	↓-1.2
4/29 22:50	64.0	↓-0.9
4/29 23:00	63.3	↓-0.7
4/29 23:10	62.8	↓-0.5
4/29 23:20	62.5	↓-0.3	干潮
4/29 23:30	62.4	↓-0.1
4/29 23:40	62.6	↑0.2
4/29 23:50	62.9	↑0.3