18 (火)	04:26	11:42	19:01	23:55
	130cm	-3cm	123cm	85cm
中潮 出 04:21 入 18:59 出 21:04 入 06:49 潮干狩り ◎ 09:18～14:10

那珂湊（茨城）2030年06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
6/18 00:00	89.4	↑0.9
6/18 00:10	90.4	↑1.0
6/18 00:20	91.7	↑1.3
6/18 00:30	93.0	↑1.3
6/18 00:40	94.6	↑1.6
6/18 00:50	96.2	↑1.6
6/18 01:00	98.0	↑1.8
6/18 01:10	99.8	↑1.8
6/18 01:20	101.7	↑1.9
6/18 01:30	103.7	↑2.0
6/18 01:40	105.8	↑2.1
6/18 01:50	107.8	↑2.0
6/18 02:00	109.9	↑2.1
6/18 02:10	112.0	↑2.1
6/18 02:20	114.0	↑2.0
6/18 02:30	116.0	↑2.0
6/18 02:40	117.9	↑1.9
6/18 02:50	119.7	↑1.8
6/18 03:00	121.5	↑1.8
6/18 03:10	123.1	↑1.6
6/18 03:20	124.5	↑1.4
6/18 03:30	125.8	↑1.3
6/18 03:40	126.9	↑1.1
6/18 03:50	127.9	↑1.0
6/18 04:00	128.6	↑0.7
6/18 04:10	129.1	↑0.5
6/18 04:20	129.3	↑0.2	満潮
6/18 04:30	129.3	0
6/18 04:40	129.0	↓-0.3
6/18 04:50	128.5	↓-0.5
6/18 05:00	127.6	↓-0.9
6/18 05:10	126.5	↓-1.1
6/18 05:20	125.1	↓-1.4
6/18 05:30	123.4	↓-1.7
6/18 05:40	121.4	↓-2.0
6/18 05:50	119.1	↓-2.3
6/18 06:00	116.5	↓-2.6
6/18 06:10	113.6	↓-2.9
6/18 06:20	110.5	↓-3.1
6/18 06:30	107.1	↓-3.4
6/18 06:40	103.5	↓-3.6
6/18 06:50	99.6	↓-3.9
6/18 07:00	95.5	↓-4.1
6/18 07:10	91.2	↓-4.3
6/18 07:20	86.8	↓-4.4
6/18 07:30	82.2	↓-4.6
6/18 07:40	77.4	↓-4.8
6/18 07:50	72.6	↓-4.8
6/18 08:00	67.7	↓-4.9
6/18 08:10	62.8	↓-4.9
6/18 08:20	57.9	↓-4.9
6/18 08:30	52.9	↓-5.0	最大潮位差
6/18 08:40	48.1	↓-4.8
6/18 08:50	43.3	↓-4.8
6/18 09:00	38.6	↓-4.7
6/18 09:10	34.0	↓-4.6
6/18 09:20	29.6	↓-4.4
6/18 09:30	25.4	↓-4.2
6/18 09:40	21.4	↓-4.0
6/18 09:50	17.7	↓-3.7
6/18 10:00	14.1	↓-3.6
6/18 10:10	10.9	↓-3.2
6/18 10:20	8.0	↓-2.9
6/18 10:30	5.3	↓-2.7
6/18 10:40	3.0	↓-2.3
6/18 10:50	1.1	↓-1.9
6/18 11:00	-0.6	↓-1.7
6/18 11:10	-1.8	↓-1.2
6/18 11:20	-2.8	↓-1.0
6/18 11:30	-3.3	↓-0.5
6/18 11:40	-3.6	↓-0.3	干潮
6/18 11:50	-3.4	↑0.2
6/18 12:00	-2.9	↑0.5
6/18 12:10	-2.1	↑0.8
6/18 12:20	-0.9	↑1.2
6/18 12:30	0.6	↑1.5
6/18 12:40	2.5	↑1.9
6/18 12:50	4.6	↑2.1
6/18 13:00	7.0	↑2.4
6/18 13:10	9.8	↑2.8
6/18 13:20	12.7	↑2.9
6/18 13:30	16.0	↑3.3
6/18 13:40	19.4	↑3.4
6/18 13:50	23.1	↑3.7
6/18 14:00	26.9	↑3.8
6/18 14:10	30.9	↑4.0
6/18 14:20	35.1	↑4.2
6/18 14:30	39.4	↑4.3
6/18 14:40	43.8	↑4.4
6/18 14:50	48.2	↑4.4
6/18 15:00	52.7	↑4.5
6/18 15:10	57.3	↑4.6
6/18 15:20	61.8	↑4.5
6/18 15:30	66.4	↑4.6
6/18 15:40	70.9	↑4.5
6/18 15:50	75.3	↑4.4
6/18 16:00	79.7	↑4.4
6/18 16:10	83.9	↑4.2
6/18 16:20	88.1	↑4.2
6/18 16:30	92.0	↑3.9
6/18 16:40	95.8	↑3.8
6/18 16:50	99.4	↑3.6
6/18 17:00	102.8	↑3.4
6/18 17:10	106.0	↑3.2
6/18 17:20	108.9	↑2.9
6/18 17:30	111.6	↑2.7
6/18 17:40	114.0	↑2.4
6/18 17:50	116.1	↑2.1
6/18 18:00	117.9	↑1.8
6/18 18:10	119.5	↑1.6
6/18 18:20	120.8	↑1.3
6/18 18:30	121.7	↑0.9
6/18 18:40	122.4	↑0.7
6/18 18:50	122.8	↑0.4
6/18 19:00	123.0	↑0.2	満潮
6/18 19:10	122.8	↓-0.2
6/18 19:20	122.4	↓-0.4
6/18 19:30	121.8	↓-0.6
6/18 19:40	120.9	↓-0.9
6/18 19:50	119.8	↓-1.1
6/18 20:00	118.5	↓-1.3
6/18 20:10	117.1	↓-1.4
6/18 20:20	115.5	↓-1.6
6/18 20:30	113.7	↓-1.8
6/18 20:40	111.9	↓-1.8
6/18 20:50	109.9	↓-2.0
6/18 21:00	108.0	↓-1.9
6/18 21:10	105.9	↓-2.1
6/18 21:20	103.9	↓-2.0
6/18 21:30	101.8	↓-2.1
6/18 21:40	99.8	↓-2.0
6/18 21:50	97.9	↓-1.9
6/18 22:00	96.0	↓-1.9
6/18 22:10	94.2	↓-1.8
6/18 22:20	92.6	↓-1.6
6/18 22:30	91.0	↓-1.6
6/18 22:40	89.6	↓-1.4
6/18 22:50	88.4	↓-1.2
6/18 23:00	87.3	↓-1.1
6/18 23:10	86.4	↓-0.9
6/18 23:20	85.6	↓-0.8
6/18 23:30	85.1	↓-0.5
6/18 23:40	84.7	↓-0.4
6/18 23:50	84.5	↓-0.2	干潮