20 (日)	19:30	04:26	-	-
	126cm	61cm	-	-
長潮 出 05:24 入 17:39 出 14:04 入 23:30

大洗（茨城）2026年09月20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
9/20 00:00	92.3	↓-2.1	最大潮位差
9/20 00:10	90.3	↓-2.0
9/20 00:20	88.3	↓-2.0
9/20 00:30	86.4	↓-1.9
9/20 00:40	84.5	↓-1.9
9/20 00:50	82.6	↓-1.9
9/20 01:00	80.8	↓-1.8
9/20 01:10	79.1	↓-1.7
9/20 01:20	77.4	↓-1.7
9/20 01:30	75.8	↓-1.6
9/20 01:40	74.2	↓-1.6
9/20 01:50	72.7	↓-1.5
9/20 02:00	71.3	↓-1.4
9/20 02:10	69.9	↓-1.4
9/20 02:20	68.6	↓-1.3
9/20 02:30	67.4	↓-1.2
9/20 02:40	66.3	↓-1.1
9/20 02:50	65.2	↓-1.1
9/20 03:00	64.3	↓-0.9
9/20 03:10	63.4	↓-0.9
9/20 03:20	62.6	↓-0.8
9/20 03:30	62.0	↓-0.6
9/20 03:40	61.4	↓-0.6
9/20 03:50	61.0	↓-0.4
9/20 04:00	60.6	↓-0.4
9/20 04:10	60.4	↓-0.2
9/20 04:20	60.3	↓-0.1	干潮
9/20 04:30	60.3	0
9/20 04:40	60.4	↑0.1
9/20 04:50	60.6	↑0.2
9/20 05:00	60.9	↑0.3
9/20 05:10	61.4	↑0.5
9/20 05:20	61.9	↑0.5
9/20 05:30	62.5	↑0.6
9/20 05:40	63.3	↑0.8
9/20 05:50	64.1	↑0.8
9/20 06:00	65.0	↑0.9
9/20 06:10	65.9	↑0.9
9/20 06:20	67.0	↑1.1
9/20 06:30	68.1	↑1.1
9/20 06:40	69.2	↑1.1
9/20 06:50	70.5	↑1.3
9/20 07:00	71.7	↑1.2
9/20 07:10	73.1	↑1.4
9/20 07:20	74.4	↑1.3
9/20 07:30	75.9	↑1.5
9/20 07:40	77.3	↑1.4
9/20 07:50	78.8	↑1.5
9/20 08:00	80.3	↑1.5
9/20 08:10	81.8	↑1.5
9/20 08:20	83.3	↑1.5
9/20 08:30	84.9	↑1.6
9/20 08:40	86.4	↑1.5
9/20 08:50	88.0	↑1.6
9/20 09:00	89.5	↑1.5
9/20 09:10	91.1	↑1.6
9/20 09:20	92.6	↑1.5
9/20 09:30	94.1	↑1.5
9/20 09:40	95.6	↑1.5
9/20 09:50	97.0	↑1.4
9/20 10:00	98.5	↑1.5
9/20 10:10	99.9	↑1.4
9/20 10:20	101.2	↑1.3
9/20 10:30	102.5	↑1.3
9/20 10:40	103.8	↑1.3
9/20 10:50	105.0	↑1.2
9/20 11:00	106.2	↑1.2
9/20 11:10	107.3	↑1.1
9/20 11:20	108.4	↑1.1
9/20 11:30	109.5	↑1.1
9/20 11:40	110.5	↑1.0
9/20 11:50	111.5	↑1.0
9/20 12:00	112.4	↑0.9
9/20 12:10	113.3	↑0.9
9/20 12:20	114.2	↑0.9
9/20 12:30	115.0	↑0.8
9/20 12:40	115.7	↑0.7
9/20 12:50	116.4	↑0.7
9/20 13:00	117.1	↑0.7
9/20 13:10	117.7	↑0.6
9/20 13:20	118.3	↑0.6
9/20 13:30	118.8	↑0.5
9/20 13:40	119.3	↑0.5
9/20 13:50	119.7	↑0.4
9/20 14:00	120.1	↑0.4
9/20 14:10	120.4	↑0.3
9/20 14:20	120.7	↑0.3
9/20 14:30	121.0	↑0.3
9/20 14:40	121.2	↑0.2
9/20 14:50	121.4	↑0.2
9/20 15:00	121.6	↑0.2
9/20 15:10	121.7	↑0.1
9/20 15:20	121.8	↑0.1
9/20 15:30	122.0	↑0.2
9/20 15:40	122.1	↑0.1
9/20 15:50	122.2	↑0.1
9/20 16:00	122.3	↑0.1
9/20 16:10	122.4	↑0.1
9/20 16:20	122.5	↑0.1
9/20 16:30	122.7	↑0.2
9/20 16:40	122.8	↑0.1
9/20 16:50	123.0	↑0.2
9/20 17:00	123.2	↑0.2
9/20 17:10	123.4	↑0.2
9/20 17:20	123.6	↑0.2
9/20 17:30	123.8	↑0.2
9/20 17:40	124.1	↑0.3
9/20 17:50	124.3	↑0.2
9/20 18:00	124.5	↑0.2
9/20 18:10	124.8	↑0.3
9/20 18:20	125.0	↑0.2
9/20 18:30	125.2	↑0.2
9/20 18:40	125.3	↑0.1
9/20 18:50	125.5	↑0.2
9/20 19:00	125.6	↑0.1
9/20 19:10	125.7	↑0.1
9/20 19:20	125.8	↑0.1	満潮
9/20 19:30	125.8	0	満潮
9/20 19:40	125.8	0
9/20 19:50	125.7	↓-0.1
9/20 20:00	125.6	↓-0.1
9/20 20:10	125.4	↓-0.2
9/20 20:20	125.2	↓-0.2
9/20 20:30	124.9	↓-0.3
9/20 20:40	124.6	↓-0.3
9/20 20:50	124.2	↓-0.4
9/20 21:00	123.7	↓-0.5
9/20 21:10	123.2	↓-0.5
9/20 21:20	122.7	↓-0.5
9/20 21:30	122.0	↓-0.7
9/20 21:40	121.3	↓-0.7
9/20 21:50	120.6	↓-0.7
9/20 22:00	119.7	↓-0.9
9/20 22:10	118.8	↓-0.9
9/20 22:20	117.9	↓-0.9
9/20 22:30	116.9	↓-1.0
9/20 22:40	115.8	↓-1.1
9/20 22:50	114.6	↓-1.2
9/20 23:00	113.4	↓-1.2
9/20 23:10	112.2	↓-1.2
9/20 23:20	110.9	↓-1.3
9/20 23:30	109.5	↓-1.4
9/20 23:40	108.2	↓-1.3
9/20 23:50	106.7	↓-1.5