20 (日)	06:14	00:27	-	14:38
	118cm	93cm	-	23cm
小潮 出 04:59 入 18:17 出 00:18 入 09:36 潮干狩り ○ 12:41～16:37

大洗（茨城）2025年04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
4/20 00:00	92.9	↓-0.2
4/20 00:10	92.8	↓-0.1
4/20 00:20	92.8	0	干潮
4/20 00:30	92.8	0
4/20 00:40	92.8	0
4/20 00:50	92.9	↑0.1
4/20 01:00	93.1	↑0.2
4/20 01:10	93.4	↑0.3
4/20 01:20	93.7	↑0.3
4/20 01:30	94.0	↑0.3
4/20 01:40	94.5	↑0.5
4/20 01:50	95.0	↑0.5
4/20 02:00	95.6	↑0.6
4/20 02:10	96.2	↑0.6
4/20 02:20	97.0	↑0.8
4/20 02:30	97.8	↑0.8
4/20 02:40	98.6	↑0.8
4/20 02:50	99.5	↑0.9
4/20 03:00	100.5	↑1.0
4/20 03:10	101.6	↑1.1
4/20 03:20	102.7	↑1.1
4/20 03:30	103.8	↑1.1
4/20 03:40	105.0	↑1.2
4/20 03:50	106.1	↑1.1
4/20 04:00	107.3	↑1.2
4/20 04:10	108.5	↑1.2
4/20 04:20	109.7	↑1.2
4/20 04:30	110.9	↑1.2
4/20 04:40	112.0	↑1.1
4/20 04:50	113.0	↑1.0
4/20 05:00	114.0	↑1.0
4/20 05:10	114.9	↑0.9
4/20 05:20	115.7	↑0.8
4/20 05:30	116.4	↑0.7
4/20 05:40	116.9	↑0.5
4/20 05:50	117.3	↑0.4
4/20 06:00	117.6	↑0.3
4/20 06:10	117.8	↑0.2	満潮
4/20 06:20	117.7	↓-0.1
4/20 06:30	117.5	↓-0.2
4/20 06:40	117.1	↓-0.4
4/20 06:50	116.6	↓-0.5
4/20 07:00	115.9	↓-0.7
4/20 07:10	115.0	↓-0.9
4/20 07:20	113.9	↓-1.1
4/20 07:30	112.6	↓-1.3
4/20 07:40	111.2	↓-1.4
4/20 07:50	109.6	↓-1.6
4/20 08:00	107.9	↓-1.7
4/20 08:10	105.9	↓-2.0
4/20 08:20	103.8	↓-2.1
4/20 08:30	101.6	↓-2.2
4/20 08:40	99.3	↓-2.3
4/20 08:50	96.8	↓-2.5
4/20 09:00	94.2	↓-2.6
4/20 09:10	91.4	↓-2.8
4/20 09:20	88.6	↓-2.8
4/20 09:30	85.7	↓-2.9
4/20 09:40	82.8	↓-2.9
4/20 09:50	79.7	↓-3.1	最大潮位差
4/20 10:00	76.7	↓-3.0
4/20 10:10	73.6	↓-3.1	最大潮位差
4/20 10:20	70.5	↓-3.1	最大潮位差
4/20 10:30	67.4	↓-3.1	最大潮位差
4/20 10:40	64.3	↓-3.1	最大潮位差
4/20 10:50	61.3	↓-3.0
4/20 11:00	58.3	↓-3.0
4/20 11:10	55.3	↓-3.0
4/20 11:20	52.5	↓-2.8
4/20 11:30	49.7	↓-2.8
4/20 11:40	47.0	↓-2.7
4/20 11:50	44.5	↓-2.5
4/20 12:00	42.0	↓-2.5
4/20 12:10	39.7	↓-2.3
4/20 12:20	37.5	↓-2.2
4/20 12:30	35.4	↓-2.1
4/20 12:40	33.5	↓-1.9
4/20 12:50	31.7	↓-1.8
4/20 13:00	30.1	↓-1.6
4/20 13:10	28.6	↓-1.5
4/20 13:20	27.2	↓-1.4
4/20 13:30	26.1	↓-1.1
4/20 13:40	25.0	↓-1.1
4/20 13:50	24.2	↓-0.8
4/20 14:00	23.5	↓-0.7
4/20 14:10	23.0	↓-0.5
4/20 14:20	22.6	↓-0.4
4/20 14:30	22.4	↓-0.2	干潮
4/20 14:40	22.3	↓-0.1
4/20 14:50	22.5	↑0.2
4/20 15:00	22.7	↑0.2
4/20 15:10	23.2	↑0.5
4/20 15:20	23.8	↑0.6
4/20 15:30	24.6	↑0.8
4/20 15:40	25.5	↑0.9
4/20 15:50	26.6	↑1.1
4/20 16:00	27.8	↑1.2
4/20 16:10	29.2	↑1.4
4/20 16:20	30.7	↑1.5
4/20 16:30	32.3	↑1.6
4/20 16:40	34.0	↑1.7
4/20 16:50	35.9	↑1.9
4/20 17:00	37.8	↑1.9
4/20 17:10	39.8	↑2.0
4/20 17:20	41.9	↑2.1
4/20 17:30	44.0	↑2.1
4/20 17:40	46.1	↑2.1
4/20 17:50	48.3	↑2.2
4/20 18:00	50.6	↑2.3
4/20 18:10	52.8	↑2.2
4/20 18:20	55.0	↑2.2
4/20 18:30	57.3	↑2.3
4/20 18:40	59.5	↑2.2
4/20 18:50	61.7	↑2.2
4/20 19:00	63.8	↑2.1
4/20 19:10	65.9	↑2.1
4/20 19:20	68.0	↑2.1
4/20 19:30	70.0	↑2.0
4/20 19:40	72.0	↑2.0
4/20 19:50	73.8	↑1.8
4/20 20:00	75.7	↑1.9
4/20 20:10	77.4	↑1.7
4/20 20:20	79.1	↑1.7
4/20 20:30	80.7	↑1.6
4/20 20:40	82.2	↑1.5
4/20 20:50	83.6	↑1.4
4/20 21:00	84.9	↑1.3
4/20 21:10	86.2	↑1.3
4/20 21:20	87.3	↑1.1
4/20 21:30	88.4	↑1.1
4/20 21:40	89.4	↑1.0
4/20 21:50	90.2	↑0.8
4/20 22:00	91.0	↑0.8
4/20 22:10	91.8	↑0.8
4/20 22:20	92.4	↑0.6
4/20 22:30	93.0	↑0.6
4/20 22:40	93.5	↑0.5
4/20 22:50	93.9	↑0.4
4/20 23:00	94.3	↑0.4
4/20 23:10	94.6	↑0.3
4/20 23:20	94.9	↑0.3
4/20 23:30	95.1	↑0.2
4/20 23:40	95.4	↑0.3
4/20 23:50	95.6	↑0.2