20 (水)	06:26	01:23	23:59	15:11
	98cm	88cm	94cm	20cm
小潮 出 04:58 入 18:17 出 00:45 入 10:16 潮干狩り ○ 13:08～17:19

那珂湊（茨城）2044年04月20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
4/20 00:00	89.1	↓-0.2
4/20 00:10	88.8	↓-0.3
4/20 00:20	88.6	↓-0.2
4/20 00:30	88.4	↓-0.2
4/20 00:40	88.2	↓-0.2
4/20 00:50	88.1	↓-0.1
4/20 01:00	87.9	↓-0.2
4/20 01:10	87.9	0
4/20 01:20	87.8	↓-0.1	干潮
4/20 01:30	87.8	0
4/20 01:40	87.9	↑0.1
4/20 01:50	88.0	↑0.1
4/20 02:00	88.2	↑0.2
4/20 02:10	88.4	↑0.2
4/20 02:20	88.6	↑0.2
4/20 02:30	88.9	↑0.3
4/20 02:40	89.2	↑0.3
4/20 02:50	89.6	↑0.4
4/20 03:00	90.0	↑0.4
4/20 03:10	90.4	↑0.4
4/20 03:20	90.9	↑0.5
4/20 03:30	91.3	↑0.4
4/20 03:40	91.8	↑0.5
4/20 03:50	92.3	↑0.5
4/20 04:00	92.8	↑0.5
4/20 04:10	93.2	↑0.4
4/20 04:20	93.7	↑0.5
4/20 04:30	94.2	↑0.5
4/20 04:40	94.6	↑0.4
4/20 04:50	95.1	↑0.5
4/20 05:00	95.5	↑0.4
4/20 05:10	95.9	↑0.4
4/20 05:20	96.2	↑0.3
4/20 05:30	96.5	↑0.3
4/20 05:40	96.8	↑0.3
4/20 05:50	97.0	↑0.2
4/20 06:00	97.2	↑0.2
4/20 06:10	97.3	↑0.1
4/20 06:20	97.4	↑0.1	満潮
4/20 06:30	97.4	0
4/20 06:40	97.3	↓-0.1
4/20 06:50	97.2	↓-0.1
4/20 07:00	97.0	↓-0.2
4/20 07:10	96.7	↓-0.3
4/20 07:20	96.3	↓-0.4
4/20 07:30	95.8	↓-0.5
4/20 07:40	95.2	↓-0.6
4/20 07:50	94.5	↓-0.7
4/20 08:00	93.7	↓-0.8
4/20 08:10	92.8	↓-0.9
4/20 08:20	91.7	↓-1.1
4/20 08:30	90.6	↓-1.1
4/20 08:40	89.3	↓-1.3
4/20 08:50	87.9	↓-1.4
4/20 09:00	86.4	↓-1.5
4/20 09:10	84.8	↓-1.6
4/20 09:20	83.1	↓-1.7
4/20 09:30	81.2	↓-1.9
4/20 09:40	79.3	↓-1.9
4/20 09:50	77.2	↓-2.1
4/20 10:00	75.0	↓-2.2
4/20 10:10	72.8	↓-2.2
4/20 10:20	70.5	↓-2.3
4/20 10:30	68.1	↓-2.4
4/20 10:40	65.6	↓-2.5
4/20 10:50	63.1	↓-2.5
4/20 11:00	60.6	↓-2.5
4/20 11:10	58.1	↓-2.5
4/20 11:20	55.5	↓-2.6	最大潮位差
4/20 11:30	52.9	↓-2.6	最大潮位差
4/20 11:40	50.4	↓-2.5
4/20 11:50	47.9	↓-2.5
4/20 12:00	45.4	↓-2.5
4/20 12:10	43.0	↓-2.4
4/20 12:20	40.6	↓-2.4
4/20 12:30	38.4	↓-2.2
4/20 12:40	36.2	↓-2.2
4/20 12:50	34.1	↓-2.1
4/20 13:00	32.1	↓-2.0
4/20 13:10	30.3	↓-1.8
4/20 13:20	28.5	↓-1.8
4/20 13:30	27.0	↓-1.5
4/20 13:40	25.5	↓-1.5
4/20 13:50	24.2	↓-1.3
4/20 14:00	23.0	↓-1.2
4/20 14:10	22.0	↓-1.0
4/20 14:20	21.2	↓-0.8
4/20 14:30	20.5	↓-0.7
4/20 14:40	20.0	↓-0.5
4/20 14:50	19.6	↓-0.4
4/20 15:00	19.3	↓-0.3
4/20 15:10	19.3	0	干潮
4/20 15:20	19.3	0
4/20 15:30	19.6	↑0.3
4/20 15:40	19.9	↑0.3
4/20 15:50	20.4	↑0.5
4/20 16:00	21.1	↑0.7
4/20 16:10	21.9	↑0.8
4/20 16:20	22.8	↑0.9
4/20 16:30	23.9	↑1.1
4/20 16:40	25.0	↑1.1
4/20 16:50	26.3	↑1.3
4/20 17:00	27.7	↑1.4
4/20 17:10	29.3	↑1.6
4/20 17:20	30.9	↑1.6
4/20 17:30	32.6	↑1.7
4/20 17:40	34.4	↑1.8
4/20 17:50	36.3	↑1.9
4/20 18:00	38.3	↑2.0
4/20 18:10	40.3	↑2.0
4/20 18:20	42.4	↑2.1
4/20 18:30	44.6	↑2.2
4/20 18:40	46.8	↑2.2
4/20 18:50	49.1	↑2.3
4/20 19:00	51.4	↑2.3
4/20 19:10	53.7	↑2.3
4/20 19:20	56.0	↑2.3
4/20 19:30	58.3	↑2.3
4/20 19:40	60.7	↑2.4
4/20 19:50	63.0	↑2.3
4/20 20:00	65.2	↑2.2
4/20 20:10	67.4	↑2.2
4/20 20:20	69.6	↑2.2
4/20 20:30	71.7	↑2.1
4/20 20:40	73.8	↑2.1
4/20 20:50	75.7	↑1.9
4/20 21:00	77.6	↑1.9
4/20 21:10	79.4	↑1.8
4/20 21:20	81.1	↑1.7
4/20 21:30	82.7	↑1.6
4/20 21:40	84.2	↑1.5
4/20 21:50	85.5	↑1.3
4/20 22:00	86.8	↑1.3
4/20 22:10	87.9	↑1.1
4/20 22:20	88.9	↑1.0
4/20 22:30	89.8	↑0.9
4/20 22:40	90.6	↑0.8
4/20 22:50	91.2	↑0.6
4/20 23:00	91.8	↑0.6
4/20 23:10	92.2	↑0.4
4/20 23:20	92.6	↑0.4
4/20 23:30	92.8	↑0.2
4/20 23:40	93.0	↑0.2
4/20 23:50	93.1	↑0.1	満潮