09 (月)	02:59	08:40	14:20	20:55
	106cm	51cm	106cm	15cm
中潮 出 05:13 入 18:08 出 04:13 入 15:36

那珂湊（茨城）2040年04月09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
4/9 00:00	69.4	↑3.5
4/9 00:10	72.9	↑3.5
4/9 00:20	76.2	↑3.3
4/9 00:30	79.4	↑3.2
4/9 00:40	82.5	↑3.1
4/9 00:50	85.5	↑3.0
4/9 01:00	88.3	↑2.8
4/9 01:10	90.9	↑2.6
4/9 01:20	93.3	↑2.4
4/9 01:30	95.5	↑2.2
4/9 01:40	97.5	↑2.0
4/9 01:50	99.3	↑1.8
4/9 02:00	100.9	↑1.6
4/9 02:10	102.2	↑1.3
4/9 02:20	103.3	↑1.1
4/9 02:30	104.1	↑0.8
4/9 02:40	104.7	↑0.6
4/9 02:50	105.0	↑0.3	満潮
4/9 03:00	105.0	0
4/9 03:10	104.9	↓-0.1
4/9 03:20	104.5	↓-0.4
4/9 03:30	103.8	↓-0.7
4/9 03:40	103.0	↓-0.8
4/9 03:50	101.9	↓-1.1
4/9 04:00	100.6	↓-1.3
4/9 04:10	99.1	↓-1.5
4/9 04:20	97.5	↓-1.6
4/9 04:30	95.7	↓-1.8
4/9 04:40	93.7	↓-2.0
4/9 04:50	91.6	↓-2.1
4/9 05:00	89.4	↓-2.2
4/9 05:10	87.1	↓-2.3
4/9 05:20	84.7	↓-2.4
4/9 05:30	82.3	↓-2.4
4/9 05:40	79.8	↓-2.5
4/9 05:50	77.3	↓-2.5
4/9 06:00	74.8	↓-2.5
4/9 06:10	72.4	↓-2.4
4/9 06:20	70.0	↓-2.4
4/9 06:30	67.7	↓-2.3
4/9 06:40	65.4	↓-2.3
4/9 06:50	63.3	↓-2.1
4/9 07:00	61.2	↓-2.1
4/9 07:10	59.4	↓-1.8
4/9 07:20	57.6	↓-1.8
4/9 07:30	56.1	↓-1.5
4/9 07:40	54.7	↓-1.4
4/9 07:50	53.6	↓-1.1
4/9 08:00	52.6	↓-1.0
4/9 08:10	51.8	↓-0.8
4/9 08:20	51.3	↓-0.5
4/9 08:30	51.0	↓-0.3	干潮
4/9 08:40	50.9	↓-0.1	干潮
4/9 08:50	51.0	↑0.1
4/9 09:00	51.4	↑0.4
4/9 09:10	52.0	↑0.6
4/9 09:20	52.8	↑0.8
4/9 09:30	53.9	↑1.1
4/9 09:40	55.1	↑1.2
4/9 09:50	56.5	↑1.4
4/9 10:00	58.1	↑1.6
4/9 10:10	59.9	↑1.8
4/9 10:20	61.8	↑1.9
4/9 10:30	63.9	↑2.1
4/9 10:40	66.1	↑2.2
4/9 10:50	68.4	↑2.3
4/9 11:00	70.8	↑2.4
4/9 11:10	73.2	↑2.4
4/9 11:20	75.7	↑2.5
4/9 11:30	78.2	↑2.5
4/9 11:40	80.7	↑2.5
4/9 11:50	83.2	↑2.5
4/9 12:00	85.7	↑2.5
4/9 12:10	88.1	↑2.4
4/9 12:20	90.4	↑2.3
4/9 12:30	92.7	↑2.3
4/9 12:40	94.8	↑2.1
4/9 12:50	96.7	↑1.9
4/9 13:00	98.6	↑1.9
4/9 13:10	100.2	↑1.6
4/9 13:20	101.7	↑1.5
4/9 13:30	102.9	↑1.2
4/9 13:40	104.0	↑1.1
4/9 13:50	104.8	↑0.8
4/9 14:00	105.4	↑0.6
4/9 14:10	105.7	↑0.3	満潮
4/9 14:20	105.8	↑0.1	満潮
4/9 14:30	105.7	↓-0.1
4/9 14:40	105.3	↓-0.4
4/9 14:50	104.6	↓-0.7
4/9 15:00	103.7	↓-0.9
4/9 15:10	102.5	↓-1.2
4/9 15:20	101.0	↓-1.5
4/9 15:30	99.4	↓-1.6
4/9 15:40	97.4	↓-2.0
4/9 15:50	95.3	↓-2.1
4/9 16:00	92.9	↓-2.4
4/9 16:10	90.3	↓-2.6
4/9 16:20	87.6	↓-2.7
4/9 16:30	84.6	↓-3.0
4/9 16:40	81.5	↓-3.1
4/9 16:50	78.2	↓-3.3
4/9 17:00	74.9	↓-3.3
4/9 17:10	71.4	↓-3.5
4/9 17:20	67.9	↓-3.5
4/9 17:30	64.3	↓-3.6
4/9 17:40	60.6	↓-3.7	最大潮位差
4/9 17:50	57.0	↓-3.6
4/9 18:00	53.3	↓-3.7	最大潮位差
4/9 18:10	49.7	↓-3.6
4/9 18:20	46.2	↓-3.5
4/9 18:30	42.8	↓-3.4
4/9 18:40	39.4	↓-3.4
4/9 18:50	36.2	↓-3.2
4/9 19:00	33.2	↓-3.0
4/9 19:10	30.3	↓-2.9
4/9 19:20	27.6	↓-2.7
4/9 19:30	25.1	↓-2.5
4/9 19:40	22.9	↓-2.2
4/9 19:50	20.9	↓-2.0
4/9 20:00	19.2	↓-1.7
4/9 20:10	17.7	↓-1.5
4/9 20:20	16.6	↓-1.1
4/9 20:30	15.7	↓-0.9
4/9 20:40	15.1	↓-0.6
4/9 20:50	14.8	↓-0.3	干潮
4/9 21:00	14.9	↑0.1
4/9 21:10	15.2	↑0.3
4/9 21:20	15.8	↑0.6
4/9 21:30	16.8	↑1.0
4/9 21:40	18.0	↑1.2
4/9 21:50	19.5	↑1.5
4/9 22:00	21.3	↑1.8
4/9 22:10	23.3	↑2.0
4/9 22:20	25.6	↑2.3
4/9 22:30	28.2	↑2.6
4/9 22:40	30.9	↑2.7
4/9 22:50	33.8	↑2.9
4/9 23:00	37.0	↑3.2
4/9 23:10	40.2	↑3.2
4/9 23:20	43.6	↑3.4
4/9 23:30	47.2	↑3.6
4/9 23:40	50.8	↑3.6
4/9 23:50	54.4	↑3.6