1 (水)	06:47	11:50	17:17	-
	113cm	72cm	114cm	-
中潮 出 06:40 入 17:05 出 19:50 入 08:30

那珂湊（茨城）2040年02月1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
2/1 00:00	4.7	↑0.6
2/1 00:10	5.5	↑0.8
2/1 00:20	6.7	↑1.2
2/1 00:30	8.2	↑1.5
2/1 00:40	9.9	↑1.7
2/1 00:50	12.0	↑2.1
2/1 01:00	14.3	↑2.3
2/1 01:10	16.8	↑2.5
2/1 01:20	19.5	↑2.7
2/1 01:30	22.5	↑3.0
2/1 01:40	25.7	↑3.2
2/1 01:50	29.0	↑3.3
2/1 02:00	32.5	↑3.5
2/1 02:10	36.1	↑3.6
2/1 02:20	39.8	↑3.7
2/1 02:30	43.7	↑3.9
2/1 02:40	47.6	↑3.9
2/1 02:50	51.5	↑3.9
2/1 03:00	55.5	↑4.0
2/1 03:10	59.5	↑4.0
2/1 03:20	63.5	↑4.0
2/1 03:30	67.4	↑3.9
2/1 03:40	71.3	↑3.9
2/1 03:50	75.1	↑3.8
2/1 04:00	78.9	↑3.8
2/1 04:10	82.5	↑3.6
2/1 04:20	86.0	↑3.5
2/1 04:30	89.3	↑3.3
2/1 04:40	92.5	↑3.2
2/1 04:50	95.5	↑3.0
2/1 05:00	98.3	↑2.8
2/1 05:10	100.9	↑2.6
2/1 05:20	103.2	↑2.3
2/1 05:30	105.3	↑2.1
2/1 05:40	107.2	↑1.9
2/1 05:50	108.8	↑1.6
2/1 06:00	110.2	↑1.4
2/1 06:10	111.2	↑1.0
2/1 06:20	112.1	↑0.9
2/1 06:30	112.6	↑0.5
2/1 06:40	112.9	↑0.3	満潮
2/1 06:50	112.9	0
2/1 07:00	112.7	↓-0.2
2/1 07:10	112.2	↓-0.5
2/1 07:20	111.5	↓-0.7
2/1 07:30	110.5	↓-1.0
2/1 07:40	109.4	↓-1.1
2/1 07:50	108.0	↓-1.4
2/1 08:00	106.5	↓-1.5
2/1 08:10	104.9	↓-1.6
2/1 08:20	103.0	↓-1.9
2/1 08:30	101.1	↓-1.9
2/1 08:40	99.1	↓-2.0
2/1 08:50	97.0	↓-2.1
2/1 09:00	94.9	↓-2.1
2/1 09:10	92.7	↓-2.2
2/1 09:20	90.6	↓-2.1
2/1 09:30	88.5	↓-2.1
2/1 09:40	86.4	↓-2.1
2/1 09:50	84.4	↓-2.0
2/1 10:00	82.5	↓-1.9
2/1 10:10	80.6	↓-1.9
2/1 10:20	78.9	↓-1.7
2/1 10:30	77.4	↓-1.5
2/1 10:40	76.0	↓-1.4
2/1 10:50	74.8	↓-1.2
2/1 11:00	73.7	↓-1.1
2/1 11:10	72.8	↓-0.9
2/1 11:20	72.2	↓-0.6
2/1 11:30	71.7	↓-0.5
2/1 11:40	71.4	↓-0.3	干潮
2/1 11:50	71.3	↓-0.1	干潮
2/1 12:00	71.4	↑0.1
2/1 12:10	71.7	↑0.3
2/1 12:20	72.2	↑0.5
2/1 12:30	72.9	↑0.7
2/1 12:40	73.8	↑0.9
2/1 12:50	74.8	↑1.0
2/1 13:00	76.0	↑1.2
2/1 13:10	77.4	↑1.4
2/1 13:20	78.8	↑1.4
2/1 13:30	80.4	↑1.6
2/1 13:40	82.1	↑1.7
2/1 13:50	83.9	↑1.8
2/1 14:00	85.7	↑1.8
2/1 14:10	87.7	↑2.0
2/1 14:20	89.6	↑1.9
2/1 14:30	91.6	↑2.0
2/1 14:40	93.6	↑2.0
2/1 14:50	95.6	↑2.0
2/1 15:00	97.6	↑2.0
2/1 15:10	99.5	↑1.9
2/1 15:20	101.4	↑1.9
2/1 15:30	103.2	↑1.8
2/1 15:40	104.9	↑1.7
2/1 15:50	106.5	↑1.6
2/1 16:00	108.0	↑1.5
2/1 16:10	109.4	↑1.4
2/1 16:20	110.6	↑1.2
2/1 16:30	111.6	↑1.0
2/1 16:40	112.5	↑0.9
2/1 16:50	113.1	↑0.6
2/1 17:00	113.6	↑0.5
2/1 17:10	113.8	↑0.2	満潮
2/1 17:20	113.8	0
2/1 17:30	113.6	↓-0.2
2/1 17:40	113.1	↓-0.5
2/1 17:50	112.4	↓-0.7
2/1 18:00	111.5	↓-0.9
2/1 18:10	110.3	↓-1.2
2/1 18:20	108.8	↓-1.5
2/1 18:30	107.1	↓-1.7
2/1 18:40	105.1	↓-2.0
2/1 18:50	102.9	↓-2.2
2/1 19:00	100.4	↓-2.5
2/1 19:10	97.8	↓-2.6
2/1 19:20	94.9	↓-2.9
2/1 19:30	91.8	↓-3.1
2/1 19:40	88.5	↓-3.3
2/1 19:50	85.0	↓-3.5
2/1 20:00	81.4	↓-3.6
2/1 20:10	77.7	↓-3.7
2/1 20:20	73.9	↓-3.8
2/1 20:30	69.9	↓-4.0
2/1 20:40	66.0	↓-3.9
2/1 20:50	61.9	↓-4.1	最大潮位差
2/1 21:00	57.9	↓-4.0
2/1 21:10	53.9	↓-4.0
2/1 21:20	50.0	↓-3.9
2/1 21:30	46.1	↓-3.9
2/1 21:40	42.3	↓-3.8
2/1 21:50	38.6	↓-3.7
2/1 22:00	35.1	↓-3.5
2/1 22:10	31.8	↓-3.3
2/1 22:20	28.6	↓-3.2
2/1 22:30	25.7	↓-2.9
2/1 22:40	23.0	↓-2.7
2/1 22:50	20.5	↓-2.5
2/1 23:00	18.3	↓-2.2
2/1 23:10	16.4	↓-1.9
2/1 23:20	14.8	↓-1.6
2/1 23:30	13.4	↓-1.4
2/1 23:40	12.4	↓-1.0
2/1 23:50	11.6	↓-0.8