2 (火)	03:30	09:40	15:59	21:56
	109cm	23cm	111cm	34cm
出 05:24 入 18:01 出 04:37 入 17:30 潮干狩り ○ 08:27～10:53

那珂湊（茨城）2030年04月2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
4/2 00:00	59.3	↑3.3
4/2 00:10	62.7	↑3.4
4/2 00:20	66.1	↑3.4
4/2 00:30	69.5	↑3.4
4/2 00:40	72.9	↑3.4
4/2 00:50	76.3	↑3.4
4/2 01:00	79.6	↑3.3
4/2 01:10	82.9	↑3.3
4/2 01:20	86.0	↑3.1
4/2 01:30	89.0	↑3.0
4/2 01:40	91.9	↑2.9
4/2 01:50	94.5	↑2.6
4/2 02:00	97.0	↑2.5
4/2 02:10	99.3	↑2.3
4/2 02:20	101.4	↑2.1
4/2 02:30	103.2	↑1.8
4/2 02:40	104.7	↑1.5
4/2 02:50	106.0	↑1.3
4/2 03:00	107.0	↑1.0
4/2 03:10	107.8	↑0.8
4/2 03:20	108.2	↑0.4	満潮
4/2 03:30	108.3	↑0.1	満潮
4/2 03:40	108.2	↓-0.1
4/2 03:50	107.7	↓-0.5
4/2 04:00	106.9	↓-0.8
4/2 04:10	105.9	↓-1.0
4/2 04:20	104.5	↓-1.4
4/2 04:30	102.9	↓-1.6
4/2 04:40	101.0	↓-1.9
4/2 04:50	98.9	↓-2.1
4/2 05:00	96.5	↓-2.4
4/2 05:10	93.9	↓-2.6
4/2 05:20	91.0	↓-2.9
4/2 05:30	88.0	↓-3.0
4/2 05:40	84.9	↓-3.1
4/2 05:50	81.5	↓-3.4
4/2 06:00	78.1	↓-3.4
4/2 06:10	74.6	↓-3.5
4/2 06:20	71.0	↓-3.6
4/2 06:30	67.4	↓-3.6
4/2 06:40	63.7	↓-3.7	最大潮位差
4/2 06:50	60.1	↓-3.6
4/2 07:00	56.5	↓-3.6
4/2 07:10	53.0	↓-3.5
4/2 07:20	49.5	↓-3.5
4/2 07:30	46.2	↓-3.3
4/2 07:40	43.0	↓-3.2
4/2 07:50	40.0	↓-3.0
4/2 08:00	37.2	↓-2.8
4/2 08:10	34.5	↓-2.7
4/2 08:20	32.1	↓-2.4
4/2 08:30	30.0	↓-2.1
4/2 08:40	28.1	↓-1.9
4/2 08:50	26.5	↓-1.6
4/2 09:00	25.1	↓-1.4
4/2 09:10	24.1	↓-1.0
4/2 09:20	23.3	↓-0.8
4/2 09:30	22.9	↓-0.4	干潮
4/2 09:40	22.7	↓-0.2	干潮
4/2 09:50	22.9	↑0.2
4/2 10:00	23.4	↑0.5
4/2 10:10	24.2	↑0.8
4/2 10:20	25.2	↑1.0
4/2 10:30	26.6	↑1.4
4/2 10:40	28.2	↑1.6
4/2 10:50	30.1	↑1.9
4/2 11:00	32.3	↑2.2
4/2 11:10	34.7	↑2.4
4/2 11:20	37.3	↑2.6
4/2 11:30	40.1	↑2.8
4/2 11:40	43.1	↑3.0
4/2 11:50	46.2	↑3.1
4/2 12:00	49.5	↑3.3
4/2 12:10	52.9	↑3.4
4/2 12:20	56.4	↑3.5
4/2 12:30	60.0	↑3.6
4/2 12:40	63.6	↑3.6
4/2 12:50	67.2	↑3.6
4/2 13:00	70.8	↑3.6
4/2 13:10	74.4	↑3.6
4/2 13:20	78.0	↑3.6
4/2 13:30	81.4	↑3.4
4/2 13:40	84.8	↑3.4
4/2 13:50	88.0	↑3.2
4/2 14:00	91.1	↑3.1
4/2 14:10	94.0	↑2.9
4/2 14:20	96.8	↑2.8
4/2 14:30	99.3	↑2.5
4/2 14:40	101.6	↑2.3
4/2 14:50	103.7	↑2.1
4/2 15:00	105.5	↑1.8
4/2 15:10	107.0	↑1.5
4/2 15:20	108.3	↑1.3
4/2 15:30	109.3	↑1.0
4/2 15:40	109.9	↑0.6
4/2 15:50	110.3	↑0.4	満潮
4/2 16:00	110.4	↑0.1
4/2 16:10	110.2	↓-0.2
4/2 16:20	109.7	↓-0.5
4/2 16:30	108.9	↓-0.8
4/2 16:40	107.8	↓-1.1
4/2 16:50	106.4	↓-1.4
4/2 17:00	104.7	↓-1.7
4/2 17:10	102.8	↓-1.9
4/2 17:20	100.7	↓-2.1
4/2 17:30	98.3	↓-2.4
4/2 17:40	95.7	↓-2.6
4/2 17:50	92.9	↓-2.8
4/2 18:00	90.0	↓-2.9
4/2 18:10	86.9	↓-3.1
4/2 18:20	83.7	↓-3.2
4/2 18:30	80.4	↓-3.3
4/2 18:40	77.0	↓-3.4
4/2 18:50	73.6	↓-3.4
4/2 19:00	70.2	↓-3.4
4/2 19:10	66.8	↓-3.4
4/2 19:20	63.5	↓-3.3
4/2 19:30	60.2	↓-3.3
4/2 19:40	57.0	↓-3.2
4/2 19:50	53.9	↓-3.1
4/2 20:00	50.9	↓-3.0
4/2 20:10	48.2	↓-2.7
4/2 20:20	45.6	↓-2.6
4/2 20:30	43.2	↓-2.4
4/2 20:40	41.0	↓-2.2
4/2 20:50	39.1	↓-1.9
4/2 21:00	37.4	↓-1.7
4/2 21:10	36.0	↓-1.4
4/2 21:20	34.8	↓-1.2
4/2 21:30	34.0	↓-0.8
4/2 21:40	33.4	↓-0.6
4/2 21:50	33.1	↓-0.3	干潮
4/2 22:00	33.1	0
4/2 22:10	33.4	↑0.3
4/2 22:20	34.0	↑0.6
4/2 22:30	34.9	↑0.9
4/2 22:40	36.0	↑1.1
4/2 22:50	37.5	↑1.5
4/2 23:00	39.1	↑1.6
4/2 23:10	41.0	↑1.9
4/2 23:20	43.2	↑2.2
4/2 23:30	45.5	↑2.3
4/2 23:40	48.1	↑2.6
4/2 23:50	50.8	↑2.7