23 (火)	06:22	01:09	23:55	14:59
	105cm	90cm	96cm	10cm
小潮 出 04:55 入 18:20 出 00:27 入 09:55 潮干狩り ◎ 12:26～17:42

那珂湊（茨城）2041年04月23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
4/23 00:00	91.2	↓-0.4
4/23 00:10	90.9	↓-0.3
4/23 00:20	90.6	↓-0.3
4/23 00:30	90.3	↓-0.3
4/23 00:40	90.1	↓-0.2
4/23 00:50	90.0	↓-0.1
4/23 01:00	89.9	↓-0.1	干潮
4/23 01:10	89.8	↓-0.1
4/23 01:20	89.9	↑0.1
4/23 01:30	90.0	↑0.1
4/23 01:40	90.2	↑0.2
4/23 01:50	90.5	↑0.3
4/23 02:00	90.8	↑0.3
4/23 02:10	91.2	↑0.4
4/23 02:20	91.6	↑0.4
4/23 02:30	92.1	↑0.5
4/23 02:40	92.7	↑0.6
4/23 02:50	93.3	↑0.6
4/23 03:00	93.9	↑0.6
4/23 03:10	94.6	↑0.7
4/23 03:20	95.3	↑0.7
4/23 03:30	96.0	↑0.7
4/23 03:40	96.8	↑0.8
4/23 03:50	97.5	↑0.7
4/23 04:00	98.2	↑0.7
4/23 04:10	99.0	↑0.8
4/23 04:20	99.7	↑0.7
4/23 04:30	100.4	↑0.7
4/23 04:40	101.1	↑0.7
4/23 04:50	101.7	↑0.6
4/23 05:00	102.3	↑0.6
4/23 05:10	102.9	↑0.6
4/23 05:20	103.4	↑0.5
4/23 05:30	103.9	↑0.5
4/23 05:40	104.2	↑0.3
4/23 05:50	104.5	↑0.3
4/23 06:00	104.8	↑0.3
4/23 06:10	104.9	↑0.1
4/23 06:20	105.0	↑0.1	満潮
4/23 06:30	105.0	0
4/23 06:40	104.8	↓-0.2
4/23 06:50	104.6	↓-0.2
4/23 07:00	104.2	↓-0.4
4/23 07:10	103.7	↓-0.5
4/23 07:20	103.1	↓-0.6
4/23 07:30	102.3	↓-0.8
4/23 07:40	101.5	↓-0.8
4/23 07:50	100.4	↓-1.1
4/23 08:00	99.3	↓-1.1
4/23 08:10	98.0	↓-1.3
4/23 08:20	96.5	↓-1.5
4/23 08:30	94.9	↓-1.6
4/23 08:40	93.1	↓-1.8
4/23 08:50	91.2	↓-1.9
4/23 09:00	89.2	↓-2.0
4/23 09:10	87.0	↓-2.2
4/23 09:20	84.7	↓-2.3
4/23 09:30	82.2	↓-2.5
4/23 09:40	79.7	↓-2.5
4/23 09:50	77.0	↓-2.7
4/23 10:00	74.2	↓-2.8
4/23 10:10	71.3	↓-2.9
4/23 10:20	68.4	↓-2.9
4/23 10:30	65.3	↓-3.1
4/23 10:40	62.3	↓-3.0
4/23 10:50	59.2	↓-3.1
4/23 11:00	56.0	↓-3.2	最大潮位差
4/23 11:10	52.9	↓-3.1
4/23 11:20	49.8	↓-3.1
4/23 11:30	46.7	↓-3.1
4/23 11:40	43.6	↓-3.1
4/23 11:50	40.6	↓-3.0
4/23 12:00	37.7	↓-2.9
4/23 12:10	34.8	↓-2.9
4/23 12:20	32.1	↓-2.7
4/23 12:30	29.5	↓-2.6
4/23 12:40	27.0	↓-2.5
4/23 12:50	24.6	↓-2.4
4/23 13:00	22.4	↓-2.2
4/23 13:10	20.3	↓-2.1
4/23 13:20	18.4	↓-1.9
4/23 13:30	16.7	↓-1.7
4/23 13:40	15.1	↓-1.6
4/23 13:50	13.8	↓-1.3
4/23 14:00	12.6	↓-1.2
4/23 14:10	11.6	↓-1.0
4/23 14:20	10.8	↓-0.8
4/23 14:30	10.2	↓-0.6
4/23 14:40	9.8	↓-0.4
4/23 14:50	9.5	↓-0.3	干潮
4/23 15:00	9.5	0
4/23 15:10	9.6	↑0.1
4/23 15:20	10.0	↑0.4
4/23 15:30	10.4	↑0.4
4/23 15:40	11.1	↑0.7
4/23 15:50	11.9	↑0.8
4/23 16:00	12.9	↑1.0
4/23 16:10	14.1	↑1.2
4/23 16:20	15.4	↑1.3
4/23 16:30	16.8	↑1.4
4/23 16:40	18.4	↑1.6
4/23 16:50	20.1	↑1.7
4/23 17:00	21.9	↑1.8
4/23 17:10	23.9	↑2.0
4/23 17:20	25.9	↑2.0
4/23 17:30	28.1	↑2.2
4/23 17:40	30.4	↑2.3
4/23 17:50	32.7	↑2.3
4/23 18:00	35.1	↑2.4
4/23 18:10	37.6	↑2.5
4/23 18:20	40.2	↑2.6
4/23 18:30	42.8	↑2.6
4/23 18:40	45.4	↑2.6
4/23 18:50	48.0	↑2.6
4/23 19:00	50.7	↑2.7
4/23 19:10	53.4	↑2.7
4/23 19:20	56.0	↑2.6
4/23 19:30	58.7	↑2.7
4/23 19:40	61.3	↑2.6
4/23 19:50	63.9	↑2.6
4/23 20:00	66.4	↑2.5
4/23 20:10	68.9	↑2.5
4/23 20:20	71.2	↑2.3
4/23 20:30	73.5	↑2.3
4/23 20:40	75.7	↑2.2
4/23 20:50	77.9	↑2.2
4/23 21:00	79.9	↑2.0
4/23 21:10	81.7	↑1.8
4/23 21:20	83.5	↑1.8
4/23 21:30	85.1	↑1.6
4/23 21:40	86.6	↑1.5
4/23 21:50	88.0	↑1.4
4/23 22:00	89.3	↑1.3
4/23 22:10	90.4	↑1.1
4/23 22:20	91.4	↑1.0
4/23 22:30	92.2	↑0.8
4/23 22:40	92.9	↑0.7
4/23 22:50	93.6	↑0.7
4/23 23:00	94.1	↑0.5
4/23 23:10	94.5	↑0.4
4/23 23:20	94.8	↑0.3
4/23 23:30	95.0	↑0.2
4/23 23:40	95.1	↑0.1
4/23 23:50	95.2	↑0.1	満潮