9 (土)	06:13	11:55	18:06	-
	125cm	63cm	130cm	-
中潮 出 05:16 入 17:56 出 08:44 入 19:54

那珂湊（茨城）2051年09月9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
9/9 00:00	49.8	0
9/9 00:10	50.2	↑0.4
9/9 00:20	50.7	↑0.5
9/9 00:30	51.6	↑0.9
9/9 00:40	52.7	↑1.1
9/9 00:50	54.0	↑1.3
9/9 01:00	55.6	↑1.6
9/9 01:10	57.4	↑1.8
9/9 01:20	59.4	↑2.0
9/9 01:30	61.5	↑2.1
9/9 01:40	63.9	↑2.4
9/9 01:50	66.3	↑2.4
9/9 02:00	69.0	↑2.7
9/9 02:10	71.7	↑2.7
9/9 02:20	74.5	↑2.8
9/9 02:30	77.5	↑3.0
9/9 02:40	80.4	↑2.9
9/9 02:50	83.5	↑3.1
9/9 03:00	86.5	↑3.0
9/9 03:10	89.5	↑3.0
9/9 03:20	92.6	↑3.1
9/9 03:30	95.6	↑3.0
9/9 03:40	98.5	↑2.9
9/9 03:50	101.4	↑2.9
9/9 04:00	104.1	↑2.7
9/9 04:10	106.8	↑2.7
9/9 04:20	109.3	↑2.5
9/9 04:30	111.7	↑2.4
9/9 04:40	113.9	↑2.2
9/9 04:50	115.9	↑2.0
9/9 05:00	117.8	↑1.9
9/9 05:10	119.4	↑1.6
9/9 05:20	120.8	↑1.4
9/9 05:30	122.0	↑1.2
9/9 05:40	122.9	↑0.9
9/9 05:50	123.6	↑0.7
9/9 06:00	124.1	↑0.5
9/9 06:10	124.2	↑0.1	満潮
9/9 06:20	124.1	↓-0.1
9/9 06:30	123.8	↓-0.3
9/9 06:40	123.2	↓-0.6
9/9 06:50	122.3	↓-0.9
9/9 07:00	121.2	↓-1.1
9/9 07:10	119.9	↓-1.3
9/9 07:20	118.3	↓-1.6
9/9 07:30	116.5	↓-1.8
9/9 07:40	114.5	↓-2.0
9/9 07:50	112.4	↓-2.1
9/9 08:00	110.0	↓-2.4
9/9 08:10	107.5	↓-2.5
9/9 08:20	104.9	↓-2.6
9/9 08:30	102.2	↓-2.7
9/9 08:40	99.4	↓-2.8
9/9 08:50	96.6	↓-2.8
9/9 09:00	93.7	↓-2.9
9/9 09:10	90.8	↓-2.9
9/9 09:20	88.0	↓-2.8
9/9 09:30	85.2	↓-2.8
9/9 09:40	82.5	↓-2.7
9/9 09:50	79.8	↓-2.7
9/9 10:00	77.3	↓-2.5
9/9 10:10	74.9	↓-2.4
9/9 10:20	72.7	↓-2.2
9/9 10:30	70.6	↓-2.1
9/9 10:40	68.8	↓-1.8
9/9 10:50	67.2	↓-1.6
9/9 11:00	65.7	↓-1.5
9/9 11:10	64.5	↓-1.2
9/9 11:20	63.6	↓-0.9
9/9 11:30	62.9	↓-0.7
9/9 11:40	62.4	↓-0.5
9/9 11:50	62.2	↓-0.2	干潮
9/9 12:00	62.2	0
9/9 12:10	62.5	↑0.3
9/9 12:20	63.0	↑0.5
9/9 12:30	63.8	↑0.8
9/9 12:40	64.8	↑1.0
9/9 12:50	66.0	↑1.2
9/9 13:00	67.4	↑1.4
9/9 13:10	69.0	↑1.6
9/9 13:20	70.9	↑1.9
9/9 13:30	72.8	↑1.9
9/9 13:40	75.0	↑2.2
9/9 13:50	77.3	↑2.3
9/9 14:00	79.7	↑2.4
9/9 14:10	82.2	↑2.5
9/9 14:20	84.8	↑2.6
9/9 14:30	87.5	↑2.7
9/9 14:40	90.2	↑2.7
9/9 14:50	93.0	↑2.8
9/9 15:00	95.8	↑2.8
9/9 15:10	98.6	↑2.8
9/9 15:20	101.4	↑2.8
9/9 15:30	104.1	↑2.7
9/9 15:40	106.8	↑2.7
9/9 15:50	109.4	↑2.6
9/9 16:00	112.0	↑2.6
9/9 16:10	114.4	↑2.4
9/9 16:20	116.7	↑2.3
9/9 16:30	118.8	↑2.1
9/9 16:40	120.8	↑2.0
9/9 16:50	122.7	↑1.9
9/9 17:00	124.3	↑1.6
9/9 17:10	125.7	↑1.4
9/9 17:20	127.0	↑1.3
9/9 17:30	128.0	↑1.0
9/9 17:40	128.7	↑0.7
9/9 17:50	129.3	↑0.6
9/9 18:00	129.5	↑0.2	満潮
9/9 18:10	129.5	0
9/9 18:20	129.3	↓-0.2
9/9 18:30	128.8	↓-0.5
9/9 18:40	128.0	↓-0.8
9/9 18:50	126.9	↓-1.1
9/9 19:00	125.6	↓-1.3
9/9 19:10	124.1	↓-1.5
9/9 19:20	122.3	↓-1.8
9/9 19:30	120.2	↓-2.1
9/9 19:40	118.0	↓-2.2
9/9 19:50	115.5	↓-2.5
9/9 20:00	112.8	↓-2.7
9/9 20:10	110.0	↓-2.8
9/9 20:20	107.0	↓-3.0
9/9 20:30	103.9	↓-3.1
9/9 20:40	100.6	↓-3.3
9/9 20:50	97.3	↓-3.3
9/9 21:00	94.0	↓-3.3
9/9 21:10	90.5	↓-3.5	最大潮位差
9/9 21:20	87.1	↓-3.4
9/9 21:30	83.7	↓-3.4
9/9 21:40	80.3	↓-3.4
9/9 21:50	77.0	↓-3.3
9/9 22:00	73.8	↓-3.2
9/9 22:10	70.7	↓-3.1
9/9 22:20	67.7	↓-3.0
9/9 22:30	64.9	↓-2.8
9/9 22:40	62.2	↓-2.7
9/9 22:50	59.8	↓-2.4
9/9 23:00	57.6	↓-2.2
9/9 23:10	55.5	↓-2.1
9/9 23:20	53.8	↓-1.7
9/9 23:30	52.2	↓-1.6
9/9 23:40	50.9	↓-1.3
9/9 23:50	49.9	↓-1.0