7 (月)	13:31	06:27	-	19:16
	118cm	45cm	-	81cm
若潮 出 05:38 入 17:15 出 14:39 入 01:07

那珂湊（茨城）2030年10月7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
10/7 00:00	109.7	↓-0.8
10/7 00:10	108.7	↓-1.0
10/7 00:20	107.6	↓-1.1
10/7 00:30	106.4	↓-1.2
10/7 00:40	105.0	↓-1.4
10/7 00:50	103.5	↓-1.5
10/7 01:00	101.9	↓-1.6
10/7 01:10	100.1	↓-1.8
10/7 01:20	98.2	↓-1.9
10/7 01:30	96.3	↓-1.9
10/7 01:40	94.2	↓-2.1
10/7 01:50	92.1	↓-2.1
10/7 02:00	89.9	↓-2.2
10/7 02:10	87.6	↓-2.3
10/7 02:20	85.3	↓-2.3
10/7 02:30	82.9	↓-2.4
10/7 02:40	80.6	↓-2.3
10/7 02:50	78.2	↓-2.4
10/7 03:00	75.8	↓-2.4
10/7 03:10	73.4	↓-2.4
10/7 03:20	71.0	↓-2.4
10/7 03:30	68.6	↓-2.4
10/7 03:40	66.3	↓-2.3
10/7 03:50	64.1	↓-2.2
10/7 04:00	61.9	↓-2.2
10/7 04:10	59.8	↓-2.1
10/7 04:20	57.8	↓-2.0
10/7 04:30	55.9	↓-1.9
10/7 04:40	54.1	↓-1.8
10/7 04:50	52.4	↓-1.7
10/7 05:00	50.8	↓-1.6
10/7 05:10	49.4	↓-1.4
10/7 05:20	48.1	↓-1.3
10/7 05:30	47.0	↓-1.1
10/7 05:40	46.1	↓-0.9
10/7 05:50	45.3	↓-0.8
10/7 06:00	44.7	↓-0.6
10/7 06:10	44.3	↓-0.4
10/7 06:20	44.1	↓-0.2	干潮
10/7 06:30	44.1	0
10/7 06:40	44.3	↑0.2
10/7 06:50	44.7	↑0.4
10/7 07:00	45.3	↑0.6
10/7 07:10	46.0	↑0.7
10/7 07:20	47.0	↑1.0
10/7 07:30	48.2	↑1.2
10/7 07:40	49.5	↑1.3
10/7 07:50	51.1	↑1.6
10/7 08:00	52.8	↑1.7
10/7 08:10	54.7	↑1.9
10/7 08:20	56.7	↑2.0
10/7 08:30	58.9	↑2.2
10/7 08:40	61.2	↑2.3
10/7 08:50	63.6	↑2.4
10/7 09:00	66.1	↑2.5
10/7 09:10	68.7	↑2.6
10/7 09:20	71.4	↑2.7
10/7 09:30	74.1	↑2.7
10/7 09:40	76.9	↑2.8	最大潮位差
10/7 09:50	79.6	↑2.7
10/7 10:00	82.4	↑2.8	最大潮位差
10/7 10:10	85.2	↑2.8	最大潮位差
10/7 10:20	87.9	↑2.7
10/7 10:30	90.6	↑2.7
10/7 10:40	93.2	↑2.6
10/7 10:50	95.8	↑2.6
10/7 11:00	98.2	↑2.4
10/7 11:10	100.6	↑2.4
10/7 11:20	102.8	↑2.2
10/7 11:30	104.9	↑2.1
10/7 11:40	106.8	↑1.9
10/7 11:50	108.6	↑1.8
10/7 12:00	110.3	↑1.7
10/7 12:10	111.8	↑1.5
10/7 12:20	113.1	↑1.3
10/7 12:30	114.2	↑1.1
10/7 12:40	115.2	↑1.0
10/7 12:50	116.0	↑0.8
10/7 13:00	116.6	↑0.6
10/7 13:10	117.0	↑0.4
10/7 13:20	117.3	↑0.3
10/7 13:30	117.3	0	満潮
10/7 13:40	117.3	0
10/7 13:50	117.0	↓-0.3
10/7 14:00	116.6	↓-0.4
10/7 14:10	116.0	↓-0.6
10/7 14:20	115.3	↓-0.7
10/7 14:30	114.5	↓-0.8
10/7 14:40	113.5	↓-1.0
10/7 14:50	112.4	↓-1.1
10/7 15:00	111.2	↓-1.2
10/7 15:10	109.9	↓-1.3
10/7 15:20	108.6	↓-1.3
10/7 15:30	107.1	↓-1.5
10/7 15:40	105.6	↓-1.5
10/7 15:50	104.0	↓-1.6
10/7 16:00	102.4	↓-1.6
10/7 16:10	100.8	↓-1.6
10/7 16:20	99.1	↓-1.7
10/7 16:30	97.4	↓-1.7
10/7 16:40	95.8	↓-1.6
10/7 16:50	94.2	↓-1.6
10/7 17:00	92.6	↓-1.6
10/7 17:10	91.0	↓-1.6
10/7 17:20	89.6	↓-1.4
10/7 17:30	88.2	↓-1.4
10/7 17:40	86.8	↓-1.4
10/7 17:50	85.6	↓-1.2
10/7 18:00	84.5	↓-1.1
10/7 18:10	83.5	↓-1.0
10/7 18:20	82.6	↓-0.9
10/7 18:30	81.9	↓-0.7
10/7 18:40	81.3	↓-0.6
10/7 18:50	80.8	↓-0.5
10/7 19:00	80.5	↓-0.3
10/7 19:10	80.4	↓-0.1	干潮
10/7 19:20	80.4	0
10/7 19:30	80.5	↑0.1
10/7 19:40	80.8	↑0.3
10/7 19:50	81.3	↑0.5
10/7 20:00	82.0	↑0.7
10/7 20:10	82.7	↑0.7
10/7 20:20	83.6	↑0.9
10/7 20:30	84.7	↑1.1
10/7 20:40	85.9	↑1.2
10/7 20:50	87.1	↑1.2
10/7 21:00	88.5	↑1.4
10/7 21:10	90.0	↑1.5
10/7 21:20	91.6	↑1.6
10/7 21:30	93.2	↑1.6
10/7 21:40	94.9	↑1.7
10/7 21:50	96.5	↑1.6
10/7 22:00	98.3	↑1.8
10/7 22:10	100.0	↑1.7
10/7 22:20	101.7	↑1.7
10/7 22:30	103.3	↑1.6
10/7 22:40	105.0	↑1.7
10/7 22:50	106.5	↑1.5
10/7 23:00	108.0	↑1.5
10/7 23:10	109.4	↑1.4
10/7 23:20	110.7	↑1.3
10/7 23:30	111.8	↑1.1
10/7 23:40	112.9	↑1.1
10/7 23:50	113.8	↑0.9