9 (火)	10:29	03:10	20:27	14:08
	104cm	48cm	122cm	97cm
小潮 出 05:16 入 17:56 出 23:09 入 12:53

那珂湊（茨城）2031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	76.2	↓-2.8	最大潮位差
9/9 00:10	73.5	↓-2.7
9/9 00:20	70.9	↓-2.6
9/9 00:30	68.4	↓-2.5
9/9 00:40	66.0	↓-2.4
9/9 00:50	63.8	↓-2.2
9/9 01:00	61.6	↓-2.2
9/9 01:10	59.6	↓-2.0
9/9 01:20	57.7	↓-1.9
9/9 01:30	56.0	↓-1.7
9/9 01:40	54.4	↓-1.6
9/9 01:50	53.0	↓-1.4
9/9 02:00	51.8	↓-1.2
9/9 02:10	50.7	↓-1.1
9/9 02:20	49.8	↓-0.9
9/9 02:30	49.1	↓-0.7
9/9 02:40	48.5	↓-0.6
9/9 02:50	48.1	↓-0.4
9/9 03:00	47.9	↓-0.2	干潮
9/9 03:10	47.8	↓-0.1	干潮
9/9 03:20	47.9	↑0.1
9/9 03:30	48.2	↑0.3
9/9 03:40	48.6	↑0.4
9/9 03:50	49.1	↑0.5
9/9 04:00	49.8	↑0.7
9/9 04:10	50.6	↑0.8
9/9 04:20	51.6	↑1.0
9/9 04:30	52.7	↑1.1
9/9 04:40	53.9	↑1.2
9/9 04:50	55.2	↑1.3
9/9 05:00	56.7	↑1.5
9/9 05:10	58.2	↑1.5
9/9 05:20	59.8	↑1.6
9/9 05:30	61.5	↑1.7
9/9 05:40	63.3	↑1.8
9/9 05:50	65.2	↑1.9
9/9 06:00	67.1	↑1.9
9/9 06:10	69.1	↑2.0
9/9 06:20	71.1	↑2.0
9/9 06:30	73.1	↑2.0
9/9 06:40	75.1	↑2.0
9/9 06:50	77.2	↑2.1
9/9 07:00	79.2	↑2.0
9/9 07:10	81.3	↑2.1
9/9 07:20	83.3	↑2.0
9/9 07:30	85.2	↑1.9
9/9 07:40	87.1	↑1.9
9/9 07:50	89.0	↑1.9
9/9 08:00	90.7	↑1.7
9/9 08:10	92.4	↑1.7
9/9 08:20	94.0	↑1.6
9/9 08:30	95.5	↑1.5
9/9 08:40	96.9	↑1.4
9/9 08:50	98.2	↑1.3
9/9 09:00	99.3	↑1.1
9/9 09:10	100.3	↑1.0
9/9 09:20	101.2	↑0.9
9/9 09:30	102.0	↑0.8
9/9 09:40	102.6	↑0.6
9/9 09:50	103.1	↑0.5
9/9 10:00	103.5	↑0.4
9/9 10:10	103.7	↑0.2
9/9 10:20	103.9	↑0.2	満潮
9/9 10:30	103.9	0
9/9 10:40	103.9	0
9/9 10:50	103.7	↓-0.2
9/9 11:00	103.4	↓-0.3
9/9 11:10	103.1	↓-0.3
9/9 11:20	102.7	↓-0.4
9/9 11:30	102.3	↓-0.4
9/9 11:40	101.8	↓-0.5
9/9 11:50	101.3	↓-0.5
9/9 12:00	100.8	↓-0.5
9/9 12:10	100.3	↓-0.5
9/9 12:20	99.7	↓-0.6
9/9 12:30	99.2	↓-0.5
9/9 12:40	98.7	↓-0.5
9/9 12:50	98.3	↓-0.4
9/9 13:00	97.8	↓-0.5
9/9 13:10	97.4	↓-0.4
9/9 13:20	97.1	↓-0.3
9/9 13:30	96.8	↓-0.3
9/9 13:40	96.6	↓-0.2
9/9 13:50	96.5	↓-0.1
9/9 14:00	96.4	↓-0.1	干潮
9/9 14:10	96.4	0
9/9 14:20	96.4	0
9/9 14:30	96.6	↑0.2
9/9 14:40	96.8	↑0.2
9/9 14:50	97.0	↑0.2
9/9 15:00	97.4	↑0.4
9/9 15:10	97.8	↑0.4
9/9 15:20	98.3	↑0.5
9/9 15:30	98.8	↑0.5
9/9 15:40	99.4	↑0.6
9/9 15:50	100.0	↑0.6
9/9 16:00	100.8	↑0.8
9/9 16:10	101.5	↑0.7
9/9 16:20	102.3	↑0.8
9/9 16:30	103.1	↑0.8
9/9 16:40	104.0	↑0.9
9/9 16:50	104.9	↑0.9
9/9 17:00	105.9	↑1.0
9/9 17:10	106.8	↑0.9
9/9 17:20	107.8	↑1.0
9/9 17:30	108.8	↑1.0
9/9 17:40	109.8	↑1.0
9/9 17:50	110.8	↑1.0
9/9 18:00	111.8	↑1.0
9/9 18:10	112.8	↑1.0
9/9 18:20	113.8	↑1.0
9/9 18:30	114.8	↑1.0
9/9 18:40	115.7	↑0.9
9/9 18:50	116.6	↑0.9
9/9 19:00	117.4	↑0.8
9/9 19:10	118.2	↑0.8
9/9 19:20	118.9	↑0.7
9/9 19:30	119.5	↑0.6
9/9 19:40	120.1	↑0.6
9/9 19:50	120.6	↑0.5
9/9 20:00	120.9	↑0.3
9/9 20:10	121.2	↑0.3
9/9 20:20	121.3	↑0.1	満潮
9/9 20:30	121.3	0
9/9 20:40	121.2	↓-0.1
9/9 20:50	120.9	↓-0.3
9/9 21:00	120.5	↓-0.4
9/9 21:10	120.0	↓-0.5
9/9 21:20	119.3	↓-0.7
9/9 21:30	118.5	↓-0.8
9/9 21:40	117.5	↓-1.0
9/9 21:50	116.3	↓-1.2
9/9 22:00	115.1	↓-1.2
9/9 22:10	113.6	↓-1.5
9/9 22:20	112.1	↓-1.5
9/9 22:30	110.4	↓-1.7
9/9 22:40	108.6	↓-1.8
9/9 22:50	106.6	↓-2.0
9/9 23:00	104.6	↓-2.0
9/9 23:10	102.4	↓-2.2
9/9 23:20	100.2	↓-2.2
9/9 23:30	97.9	↓-2.3
9/9 23:40	95.5	↓-2.4
9/9 23:50	93.1	↓-2.4