20 (木)	10:33	06:18	-	17:11
	82cm	69cm	-	42cm
小潮 出 04:29 入 18:42 出 01:15 入 12:42

那珂湊（茨城）2055年05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
5/20 00:00	104.1	↓-0.2
5/20 00:10	103.7	↓-0.4
5/20 00:20	103.2	↓-0.5
5/20 00:30	102.6	↓-0.6
5/20 00:40	101.8	↓-0.8
5/20 00:50	101.0	↓-0.8
5/20 01:00	100.1	↓-0.9
5/20 01:10	99.1	↓-1.0
5/20 01:20	98.0	↓-1.1
5/20 01:30	96.8	↓-1.2
5/20 01:40	95.6	↓-1.2
5/20 01:50	94.3	↓-1.3
5/20 02:00	93.0	↓-1.3
5/20 02:10	91.7	↓-1.3
5/20 02:20	90.3	↓-1.4
5/20 02:30	89.0	↓-1.3
5/20 02:40	87.6	↓-1.4
5/20 02:50	86.2	↓-1.4
5/20 03:00	84.9	↓-1.3
5/20 03:10	83.6	↓-1.3
5/20 03:20	82.2	↓-1.4
5/20 03:30	81.0	↓-1.2
5/20 03:40	79.7	↓-1.3
5/20 03:50	78.5	↓-1.2
5/20 04:00	77.4	↓-1.1
5/20 04:10	76.3	↓-1.1
5/20 04:20	75.2	↓-1.1
5/20 04:30	74.2	↓-1.0
5/20 04:40	73.3	↓-0.9
5/20 04:50	72.5	↓-0.8
5/20 05:00	71.8	↓-0.7
5/20 05:10	71.1	↓-0.7
5/20 05:20	70.5	↓-0.6
5/20 05:30	70.0	↓-0.5
5/20 05:40	69.6	↓-0.4
5/20 05:50	69.3	↓-0.3
5/20 06:00	69.1	↓-0.2
5/20 06:10	69.0	↓-0.1	干潮
5/20 06:20	69.0	0
5/20 06:30	69.0	0
5/20 06:40	69.2	↑0.2
5/20 06:50	69.5	↑0.3
5/20 07:00	69.8	↑0.3
5/20 07:10	70.2	↑0.4
5/20 07:20	70.7	↑0.5
5/20 07:30	71.2	↑0.5
5/20 07:40	71.9	↑0.7
5/20 07:50	72.5	↑0.6
5/20 08:00	73.2	↑0.7
5/20 08:10	74.0	↑0.8
5/20 08:20	74.7	↑0.7
5/20 08:30	75.5	↑0.8
5/20 08:40	76.2	↑0.7
5/20 08:50	77.0	↑0.8
5/20 09:00	77.7	↑0.7
5/20 09:10	78.4	↑0.7
5/20 09:20	79.1	↑0.7
5/20 09:30	79.7	↑0.6
5/20 09:40	80.2	↑0.5
5/20 09:50	80.7	↑0.5
5/20 10:00	81.1	↑0.4
5/20 10:10	81.3	↑0.2
5/20 10:20	81.5	↑0.2
5/20 10:30	81.6	↑0.1	満潮
5/20 10:40	81.6	0
5/20 10:50	81.4	↓-0.2
5/20 11:00	81.2	↓-0.2
5/20 11:10	80.8	↓-0.4
5/20 11:20	80.3	↓-0.5
5/20 11:30	79.7	↓-0.6
5/20 11:40	79.0	↓-0.7
5/20 11:50	78.1	↓-0.9
5/20 12:00	77.2	↓-0.9
5/20 12:10	76.2	↓-1.0
5/20 12:20	75.0	↓-1.2
5/20 12:30	73.8	↓-1.2
5/20 12:40	72.5	↓-1.3
5/20 12:50	71.2	↓-1.3
5/20 13:00	69.7	↓-1.5
5/20 13:10	68.3	↓-1.4
5/20 13:20	66.7	↓-1.6
5/20 13:30	65.2	↓-1.5
5/20 13:40	63.6	↓-1.6
5/20 13:50	62.0	↓-1.6
5/20 14:00	60.4	↓-1.6
5/20 14:10	58.8	↓-1.6
5/20 14:20	57.2	↓-1.6
5/20 14:30	55.7	↓-1.5
5/20 14:40	54.2	↓-1.5
5/20 14:50	52.7	↓-1.5
5/20 15:00	51.3	↓-1.4
5/20 15:10	49.9	↓-1.4
5/20 15:20	48.6	↓-1.3
5/20 15:30	47.4	↓-1.2
5/20 15:40	46.3	↓-1.1
5/20 15:50	45.2	↓-1.1
5/20 16:00	44.3	↓-0.9
5/20 16:10	43.5	↓-0.8
5/20 16:20	42.8	↓-0.7
5/20 16:30	42.2	↓-0.6
5/20 16:40	41.7	↓-0.5
5/20 16:50	41.4	↓-0.3
5/20 17:00	41.1	↓-0.3
5/20 17:10	41.1	0	干潮
5/20 17:20	41.1	0
5/20 17:30	41.4	↑0.3
5/20 17:40	41.7	↑0.3
5/20 17:50	42.3	↑0.6
5/20 18:00	42.9	↑0.6
5/20 18:10	43.7	↑0.8
5/20 18:20	44.7	↑1.0
5/20 18:30	45.8	↑1.1
5/20 18:40	47.1	↑1.3
5/20 18:50	48.5	↑1.4
5/20 19:00	50.1	↑1.6
5/20 19:10	51.8	↑1.7
5/20 19:20	53.6	↑1.8
5/20 19:30	55.5	↑1.9
5/20 19:40	57.6	↑2.1
5/20 19:50	59.7	↑2.1
5/20 20:00	61.9	↑2.2
5/20 20:10	64.2	↑2.3
5/20 20:20	66.6	↑2.4
5/20 20:30	69.0	↑2.4
5/20 20:40	71.5	↑2.5	最大潮位差
5/20 20:50	74.0	↑2.5	最大潮位差
5/20 21:00	76.5	↑2.5	最大潮位差
5/20 21:10	79.0	↑2.5	最大潮位差
5/20 21:20	81.4	↑2.4
5/20 21:30	83.8	↑2.4
5/20 21:40	86.2	↑2.4
5/20 21:50	88.5	↑2.3
5/20 22:00	90.7	↑2.2
5/20 22:10	92.8	↑2.1
5/20 22:20	94.9	↑2.1
5/20 22:30	96.8	↑1.9
5/20 22:40	98.5	↑1.7
5/20 22:50	100.1	↑1.6
5/20 23:00	101.6	↑1.5
5/20 23:10	102.9	↑1.3
5/20 23:20	104.1	↑1.2
5/20 23:30	105.1	↑1.0
5/20 23:40	105.9	↑0.8
5/20 23:50	106.5	↑0.6