13 (月)	11:39	04:46	-	18:32
	116cm	53cm	-	58cm
長潮 出 06:40 入 16:25 出 13:08 入 00:52

那珂湊（茨城）2021年12月13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
12/13 00:00	87.1	↓-1.1
12/13 00:10	85.9	↓-1.2
12/13 00:20	84.5	↓-1.4
12/13 00:30	83.1	↓-1.4
12/13 00:40	81.7	↓-1.4
12/13 00:50	80.1	↓-1.6
12/13 01:00	78.6	↓-1.5
12/13 01:10	76.9	↓-1.7
12/13 01:20	75.3	↓-1.6
12/13 01:30	73.6	↓-1.7
12/13 01:40	72.0	↓-1.6
12/13 01:50	70.3	↓-1.7
12/13 02:00	68.7	↓-1.6
12/13 02:10	67.1	↓-1.6
12/13 02:20	65.5	↓-1.6
12/13 02:30	64.0	↓-1.5
12/13 02:40	62.6	↓-1.4
12/13 02:50	61.2	↓-1.4
12/13 03:00	59.8	↓-1.4
12/13 03:10	58.6	↓-1.2
12/13 03:20	57.5	↓-1.1
12/13 03:30	56.5	↓-1.0
12/13 03:40	55.5	↓-1.0
12/13 03:50	54.7	↓-0.8
12/13 04:00	54.0	↓-0.7
12/13 04:10	53.5	↓-0.5
12/13 04:20	53.0	↓-0.5
12/13 04:30	52.8	↓-0.2
12/13 04:40	52.6	↓-0.2	干潮
12/13 04:50	52.6	0
12/13 05:00	52.8	↑0.2
12/13 05:10	53.1	↑0.3
12/13 05:20	53.5	↑0.4
12/13 05:30	54.1	↑0.6
12/13 05:40	54.9	↑0.8
12/13 05:50	55.8	↑0.9
12/13 06:00	56.9	↑1.1
12/13 06:10	58.1	↑1.2
12/13 06:20	59.5	↑1.4
12/13 06:30	61.0	↑1.5
12/13 06:40	62.7	↑1.7
12/13 06:50	64.5	↑1.8
12/13 07:00	66.4	↑1.9
12/13 07:10	68.4	↑2.0
12/13 07:20	70.5	↑2.1
12/13 07:30	72.7	↑2.2
12/13 07:40	75.0	↑2.3
12/13 07:50	77.4	↑2.4
12/13 08:00	79.8	↑2.4
12/13 08:10	82.2	↑2.4
12/13 08:20	84.7	↑2.5	最大潮位差
12/13 08:30	87.1	↑2.4
12/13 08:40	89.6	↑2.5	最大潮位差
12/13 08:50	92.0	↑2.4
12/13 09:00	94.4	↑2.4
12/13 09:10	96.7	↑2.3
12/13 09:20	99.0	↑2.3
12/13 09:30	101.1	↑2.1
12/13 09:40	103.2	↑2.1
12/13 09:50	105.1	↑1.9
12/13 10:00	106.9	↑1.8
12/13 10:10	108.6	↑1.7
12/13 10:20	110.1	↑1.5
12/13 10:30	111.4	↑1.3
12/13 10:40	112.6	↑1.2
12/13 10:50	113.6	↑1.0
12/13 11:00	114.4	↑0.8
12/13 11:10	115.0	↑0.6
12/13 11:20	115.5	↑0.5
12/13 11:30	115.7	↑0.2	満潮
12/13 11:40	115.8	↑0.1
12/13 11:50	115.6	↓-0.2
12/13 12:00	115.3	↓-0.3
12/13 12:10	114.8	↓-0.5
12/13 12:20	114.1	↓-0.7
12/13 12:30	113.3	↓-0.8
12/13 12:40	112.3	↓-1.0
12/13 12:50	111.1	↓-1.2
12/13 13:00	109.8	↓-1.3
12/13 13:10	108.4	↓-1.4
12/13 13:20	106.8	↓-1.6
12/13 13:30	105.1	↓-1.7
12/13 13:40	103.3	↓-1.8
12/13 13:50	101.4	↓-1.9
12/13 14:00	99.5	↓-1.9
12/13 14:10	97.4	↓-2.1
12/13 14:20	95.4	↓-2.0
12/13 14:30	93.2	↓-2.2
12/13 14:40	91.1	↓-2.1
12/13 14:50	88.9	↓-2.2
12/13 15:00	86.7	↓-2.2
12/13 15:10	84.5	↓-2.2
12/13 15:20	82.4	↓-2.1
12/13 15:30	80.2	↓-2.2
12/13 15:40	78.1	↓-2.1
12/13 15:50	76.1	↓-2.0
12/13 16:00	74.1	↓-2.0
12/13 16:10	72.2	↓-1.9
12/13 16:20	70.3	↓-1.9
12/13 16:30	68.6	↓-1.7
12/13 16:40	66.9	↓-1.7
12/13 16:50	65.4	↓-1.5
12/13 17:00	64.0	↓-1.4
12/13 17:10	62.7	↓-1.3
12/13 17:20	61.5	↓-1.2
12/13 17:30	60.5	↓-1.0
12/13 17:40	59.6	↓-0.9
12/13 17:50	58.9	↓-0.7
12/13 18:00	58.3	↓-0.6
12/13 18:10	57.9	↓-0.4
12/13 18:20	57.7	↓-0.2
12/13 18:30	57.6	↓-0.1	干潮
12/13 18:40	57.6	0
12/13 18:50	57.9	↑0.3
12/13 19:00	58.2	↑0.3
12/13 19:10	58.8	↑0.6
12/13 19:20	59.5	↑0.7
12/13 19:30	60.3	↑0.8
12/13 19:40	61.3	↑1.0
12/13 19:50	62.3	↑1.0
12/13 20:00	63.5	↑1.2
12/13 20:10	64.8	↑1.3
12/13 20:20	66.2	↑1.4
12/13 20:30	67.7	↑1.5
12/13 20:40	69.2	↑1.5
12/13 20:50	70.8	↑1.6
12/13 21:00	72.5	↑1.7
12/13 21:10	74.1	↑1.6
12/13 21:20	75.8	↑1.7
12/13 21:30	77.4	↑1.6
12/13 21:40	79.0	↑1.6
12/13 21:50	80.6	↑1.6
12/13 22:00	82.2	↑1.6
12/13 22:10	83.7	↑1.5
12/13 22:20	85.1	↑1.4
12/13 22:30	86.4	↑1.3
12/13 22:40	87.6	↑1.2
12/13 22:50	88.7	↑1.1
12/13 23:00	89.7	↑1.0
12/13 23:10	90.6	↑0.9
12/13 23:20	91.3	↑0.7
12/13 23:30	91.9	↑0.6
12/13 23:40	92.4	↑0.5
12/13 23:50	92.7	↑0.3