18 (土)	06:58	01:04	21:07	14:00
	107cm	62cm	92cm	17cm
中潮 出 05:46 入 17:49 出 09:37 入 - 潮干狩り ○ 12:06～16:01

那珂湊（茨城）2051年03月18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
3/18 00:00	64.6	↓-1.2
3/18 00:10	63.6	↓-1.0
3/18 00:20	62.8	↓-0.8
3/18 00:30	62.1	↓-0.7
3/18 00:40	61.6	↓-0.5
3/18 00:50	61.3	↓-0.3
3/18 01:00	61.1	↓-0.2	干潮
3/18 01:10	61.1	0
3/18 01:20	61.3	↑0.2
3/18 01:30	61.7	↑0.4
3/18 01:40	62.3	↑0.6
3/18 01:50	63.0	↑0.7
3/18 02:00	63.9	↑0.9
3/18 02:10	64.9	↑1.0
3/18 02:20	66.0	↑1.1
3/18 02:30	67.3	↑1.3
3/18 02:40	68.7	↑1.4
3/18 02:50	70.2	↑1.5
3/18 03:00	71.9	↑1.7
3/18 03:10	73.6	↑1.7
3/18 03:20	75.4	↑1.8
3/18 03:30	77.2	↑1.8
3/18 03:40	79.1	↑1.9
3/18 03:50	81.0	↑1.9
3/18 04:00	83.0	↑2.0
3/18 04:10	85.0	↑2.0
3/18 04:20	86.9	↑1.9
3/18 04:30	88.9	↑2.0
3/18 04:40	90.8	↑1.9
3/18 04:50	92.6	↑1.8
3/18 05:00	94.5	↑1.9
3/18 05:10	96.2	↑1.7
3/18 05:20	97.8	↑1.6
3/18 05:30	99.4	↑1.6
3/18 05:40	100.8	↑1.4
3/18 05:50	102.1	↑1.3
3/18 06:00	103.3	↑1.2
3/18 06:10	104.3	↑1.0
3/18 06:20	105.1	↑0.8
3/18 06:30	105.8	↑0.7
3/18 06:40	106.2	↑0.4
3/18 06:50	106.5	↑0.3	満潮
3/18 07:00	106.5	0
3/18 07:10	106.4	↓-0.1
3/18 07:20	106.0	↓-0.4
3/18 07:30	105.4	↓-0.6
3/18 07:40	104.5	↓-0.9
3/18 07:50	103.4	↓-1.1
3/18 08:00	102.1	↓-1.3
3/18 08:10	100.6	↓-1.5
3/18 08:20	98.8	↓-1.8
3/18 08:30	96.8	↓-2.0
3/18 08:40	94.6	↓-2.2
3/18 08:50	92.3	↓-2.3
3/18 09:00	89.7	↓-2.6
3/18 09:10	86.9	↓-2.8
3/18 09:20	84.0	↓-2.9
3/18 09:30	81.0	↓-3.0
3/18 09:40	77.8	↓-3.2
3/18 09:50	74.5	↓-3.3
3/18 10:00	71.1	↓-3.4
3/18 10:10	67.7	↓-3.4
3/18 10:20	64.2	↓-3.5	最大潮位差
3/18 10:30	60.8	↓-3.4
3/18 10:40	57.3	↓-3.5	最大潮位差
3/18 10:50	53.8	↓-3.5	最大潮位差
3/18 11:00	50.4	↓-3.4
3/18 11:10	47.1	↓-3.3
3/18 11:20	43.8	↓-3.3
3/18 11:30	40.7	↓-3.1
3/18 11:40	37.7	↓-3.0
3/18 11:50	34.8	↓-2.9
3/18 12:00	32.1	↓-2.7
3/18 12:10	29.6	↓-2.5
3/18 12:20	27.3	↓-2.3
3/18 12:30	25.2	↓-2.1
3/18 12:40	23.2	↓-2.0
3/18 12:50	21.5	↓-1.7
3/18 13:00	20.1	↓-1.4
3/18 13:10	18.8	↓-1.3
3/18 13:20	17.8	↓-1.0
3/18 13:30	17.0	↓-0.8
3/18 13:40	16.4	↓-0.6
3/18 13:50	16.1	↓-0.3	干潮
3/18 14:00	16.0	↓-0.1	干潮
3/18 14:10	16.2	↑0.2
3/18 14:20	16.5	↑0.3
3/18 14:30	17.1	↑0.6
3/18 14:40	17.9	↑0.8
3/18 14:50	18.8	↑0.9
3/18 15:00	20.0	↑1.2
3/18 15:10	21.4	↑1.4
3/18 15:20	22.9	↑1.5
3/18 15:30	24.6	↑1.7
3/18 15:40	26.5	↑1.9
3/18 15:50	28.5	↑2.0
3/18 16:00	30.6	↑2.1
3/18 16:10	32.9	↑2.3
3/18 16:20	35.2	↑2.3
3/18 16:30	37.7	↑2.5
3/18 16:40	40.2	↑2.5
3/18 16:50	42.8	↑2.6
3/18 17:00	45.5	↑2.7
3/18 17:10	48.2	↑2.7
3/18 17:20	51.0	↑2.8
3/18 17:30	53.7	↑2.7
3/18 17:40	56.5	↑2.8
3/18 17:50	59.3	↑2.8
3/18 18:00	62.0	↑2.7
3/18 18:10	64.6	↑2.6
3/18 18:20	67.3	↑2.7
3/18 18:30	69.8	↑2.5
3/18 18:40	72.3	↑2.5
3/18 18:50	74.6	↑2.3
3/18 19:00	76.8	↑2.2
3/18 19:10	78.9	↑2.1
3/18 19:20	80.9	↑2.0
3/18 19:30	82.7	↑1.8
3/18 19:40	84.4	↑1.7
3/18 19:50	85.9	↑1.5
3/18 20:00	87.2	↑1.3
3/18 20:10	88.3	↑1.1
3/18 20:20	89.2	↑0.9
3/18 20:30	90.0	↑0.8
3/18 20:40	90.6	↑0.6
3/18 20:50	90.9	↑0.3
3/18 21:00	91.1	↑0.2	満潮
3/18 21:10	91.2	↑0.1
3/18 21:20	91.0	↓-0.2
3/18 21:30	90.7	↓-0.3
3/18 21:40	90.2	↓-0.5
3/18 21:50	89.6	↓-0.6
3/18 22:00	88.9	↓-0.7
3/18 22:10	88.0	↓-0.9
3/18 22:20	87.1	↓-0.9
3/18 22:30	86.0	↓-1.1
3/18 22:40	84.9	↓-1.1
3/18 22:50	83.8	↓-1.1
3/18 23:00	82.5	↓-1.3
3/18 23:10	81.3	↓-1.2
3/18 23:20	80.1	↓-1.2
3/18 23:30	78.9	↓-1.2
3/18 23:40	77.7	↓-1.2
3/18 23:50	76.5	↓-1.2