29 (日)	04:28	11:21	18:32	23:33
	112cm	-4cm	113cm	71cm
中潮 出 04:48 入 18:25 出 21:01 入 06:06 潮干狩り ◎ 08:51～13:54

那珂湊（茨城）2040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	63.6	↑1.3
4/29 00:10	65.0	↑1.4
4/29 00:20	66.6	↑1.6
4/29 00:30	68.4	↑1.8
4/29 00:40	70.4	↑2.0
4/29 00:50	72.5	↑2.1
4/29 01:00	74.6	↑2.1
4/29 01:10	76.9	↑2.3
4/29 01:20	79.3	↑2.4
4/29 01:30	81.7	↑2.4
4/29 01:40	84.1	↑2.4
4/29 01:50	86.6	↑2.5
4/29 02:00	89.0	↑2.4
4/29 02:10	91.5	↑2.5
4/29 02:20	93.8	↑2.3
4/29 02:30	96.1	↑2.3
4/29 02:40	98.3	↑2.2
4/29 02:50	100.4	↑2.1
4/29 03:00	102.4	↑2.0
4/29 03:10	104.2	↑1.8
4/29 03:20	105.8	↑1.6
4/29 03:30	107.3	↑1.5
4/29 03:40	108.6	↑1.3
4/29 03:50	109.6	↑1.0
4/29 04:00	110.5	↑0.9
4/29 04:10	111.0	↑0.5
4/29 04:20	111.4	↑0.4	満潮
4/29 04:30	111.4	0
4/29 04:40	111.2	↓-0.2
4/29 04:50	110.7	↓-0.5
4/29 05:00	110.0	↓-0.7
4/29 05:10	108.9	↓-1.1
4/29 05:20	107.5	↓-1.4
4/29 05:30	105.9	↓-1.6
4/29 05:40	104.0	↓-1.9
4/29 05:50	101.8	↓-2.2
4/29 06:00	99.3	↓-2.5
4/29 06:10	96.5	↓-2.8
4/29 06:20	93.5	↓-3.0
4/29 06:30	90.3	↓-3.2
4/29 06:40	86.8	↓-3.5
4/29 06:50	83.1	↓-3.7
4/29 07:00	79.2	↓-3.9
4/29 07:10	75.2	↓-4.0
4/29 07:20	71.0	↓-4.2
4/29 07:30	66.7	↓-4.3
4/29 07:40	62.2	↓-4.5
4/29 07:50	57.8	↓-4.4
4/29 08:00	53.3	↓-4.5
4/29 08:10	48.7	↓-4.6	最大潮位差
4/29 08:20	44.2	↓-4.5
4/29 08:30	39.8	↓-4.4
4/29 08:40	35.4	↓-4.4
4/29 08:50	31.1	↓-4.3
4/29 09:00	26.9	↓-4.2
4/29 09:10	23.0	↓-3.9
4/29 09:20	19.2	↓-3.8
4/29 09:30	15.6	↓-3.6
4/29 09:40	12.2	↓-3.4
4/29 09:50	9.1	↓-3.1
4/29 10:00	6.3	↓-2.8
4/29 10:10	3.8	↓-2.5
4/29 10:20	1.6	↓-2.2
4/29 10:30	-0.3	↓-1.9
4/29 10:40	-1.9	↓-1.6
4/29 10:50	-3.1	↓-1.2
4/29 11:00	-4.0	↓-0.9
4/29 11:10	-4.5	↓-0.5
4/29 11:20	-4.7	↓-0.2	干潮
4/29 11:30	-4.5	↑0.2
4/29 11:40	-3.9	↑0.6
4/29 11:50	-3.1	↑0.8
4/29 12:00	-1.9	↑1.2
4/29 12:10	-0.3	↑1.6
4/29 12:20	1.5	↑1.8
4/29 12:30	3.6	↑2.1
4/29 12:40	6.0	↑2.4
4/29 12:50	8.7	↑2.7
4/29 13:00	11.6	↑2.9
4/29 13:10	14.8	↑3.2
4/29 13:20	18.2	↑3.4
4/29 13:30	21.7	↑3.5
4/29 13:40	25.4	↑3.7
4/29 13:50	29.3	↑3.9
4/29 14:00	33.3	↑4.0
4/29 14:10	37.4	↑4.1
4/29 14:20	41.6	↑4.2
4/29 14:30	45.8	↑4.2
4/29 14:40	50.1	↑4.3
4/29 14:50	54.4	↑4.3
4/29 15:00	58.6	↑4.2
4/29 15:10	62.9	↑4.3
4/29 15:20	67.0	↑4.1
4/29 15:30	71.2	↑4.2
4/29 15:40	75.2	↑4.0
4/29 15:50	79.0	↑3.8
4/29 16:00	82.8	↑3.8
4/29 16:10	86.4	↑3.6
4/29 16:20	89.8	↑3.4
4/29 16:30	93.1	↑3.3
4/29 16:40	96.1	↑3.0
4/29 16:50	98.9	↑2.8
4/29 17:00	101.5	↑2.6
4/29 17:10	103.8	↑2.3
4/29 17:20	105.8	↑2.0
4/29 17:30	107.7	↑1.9
4/29 17:40	109.2	↑1.5
4/29 17:50	110.4	↑1.2
4/29 18:00	111.4	↑1.0
4/29 18:10	112.1	↑0.7
4/29 18:20	112.6	↑0.5
4/29 18:30	112.7	↑0.1	満潮
4/29 18:40	112.6	↓-0.1
4/29 18:50	112.2	↓-0.4
4/29 19:00	111.6	↓-0.6
4/29 19:10	110.7	↓-0.9
4/29 19:20	109.7	↓-1.0
4/29 19:30	108.4	↓-1.3
4/29 19:40	106.9	↓-1.5
4/29 19:50	105.2	↓-1.7
4/29 20:00	103.4	↓-1.8
4/29 20:10	101.5	↓-1.9
4/29 20:20	99.5	↓-2.0
4/29 20:30	97.3	↓-2.2
4/29 20:40	95.2	↓-2.1
4/29 20:50	93.0	↓-2.2
4/29 21:00	90.7	↓-2.3
4/29 21:10	88.5	↓-2.2
4/29 21:20	86.4	↓-2.1
4/29 21:30	84.3	↓-2.1
4/29 21:40	82.2	↓-2.1
4/29 21:50	80.3	↓-1.9
4/29 22:00	78.5	↓-1.8
4/29 22:10	76.8	↓-1.7
4/29 22:20	75.3	↓-1.5
4/29 22:30	74.0	↓-1.3
4/29 22:40	72.8	↓-1.2
4/29 22:50	71.9	↓-0.9
4/29 23:00	71.1	↓-0.8
4/29 23:10	70.5	↓-0.6
4/29 23:20	70.2	↓-0.3
4/29 23:30	70.1	↓-0.1	干潮
4/29 23:40	70.1	0
4/29 23:50	70.4	↑0.3