20 (日)	09:30	19:35	-	-
	112cm	26cm	-	-
長潮 出 06:21 入 17:24 出 03:02 入 12:30

大洗（茨城）2028年02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
2/20 00:00	80.1	↑1.6
2/20 00:10	81.7	↑1.6
2/20 00:20	83.3	↑1.6
2/20 00:30	84.8	↑1.5
2/20 00:40	86.2	↑1.4
2/20 00:50	87.6	↑1.4
2/20 01:00	89.0	↑1.4
2/20 01:10	90.2	↑1.2
2/20 01:20	91.5	↑1.3
2/20 01:30	92.6	↑1.1
2/20 01:40	93.7	↑1.1
2/20 01:50	94.7	↑1.0
2/20 02:00	95.7	↑1.0
2/20 02:10	96.5	↑0.8
2/20 02:20	97.3	↑0.8
2/20 02:30	98.0	↑0.7
2/20 02:40	98.7	↑0.7
2/20 02:50	99.3	↑0.6
2/20 03:00	99.8	↑0.5
2/20 03:10	100.3	↑0.5
2/20 03:20	100.7	↑0.4
2/20 03:30	101.1	↑0.4
2/20 03:40	101.4	↑0.3
2/20 03:50	101.7	↑0.3
2/20 04:00	102.0	↑0.3
2/20 04:10	102.2	↑0.2
2/20 04:20	102.4	↑0.2
2/20 04:30	102.7	↑0.3
2/20 04:40	102.9	↑0.2
2/20 04:50	103.1	↑0.2
2/20 05:00	103.4	↑0.3
2/20 05:10	103.6	↑0.2
2/20 05:20	103.9	↑0.3
2/20 05:30	104.2	↑0.3
2/20 05:40	104.5	↑0.3
2/20 05:50	104.8	↑0.3
2/20 06:00	105.2	↑0.4
2/20 06:10	105.5	↑0.3
2/20 06:20	105.9	↑0.4
2/20 06:30	106.3	↑0.4
2/20 06:40	106.7	↑0.4
2/20 06:50	107.1	↑0.4
2/20 07:00	107.5	↑0.4
2/20 07:10	107.9	↑0.4
2/20 07:20	108.3	↑0.4
2/20 07:30	108.7	↑0.4
2/20 07:40	109.0	↑0.3
2/20 07:50	109.4	↑0.4
2/20 08:00	109.7	↑0.3
2/20 08:10	110.1	↑0.4
2/20 08:20	110.4	↑0.3
2/20 08:30	110.6	↑0.2
2/20 08:40	110.9	↑0.3
2/20 08:50	111.1	↑0.2
2/20 09:00	111.2	↑0.1
2/20 09:10	111.4	↑0.2
2/20 09:20	111.4	0	満潮
2/20 09:30	111.5	↑0.1	満潮
2/20 09:40	111.4	↓-0.1
2/20 09:50	111.3	↓-0.1
2/20 10:00	111.2	↓-0.1
2/20 10:10	110.9	↓-0.3
2/20 10:20	110.6	↓-0.3
2/20 10:30	110.3	↓-0.3
2/20 10:40	109.8	↓-0.5
2/20 10:50	109.3	↓-0.5
2/20 11:00	108.7	↓-0.6
2/20 11:10	108.0	↓-0.7
2/20 11:20	107.3	↓-0.7
2/20 11:30	106.4	↓-0.9
2/20 11:40	105.5	↓-0.9
2/20 11:50	104.5	↓-1.0
2/20 12:00	103.4	↓-1.1
2/20 12:10	102.3	↓-1.1
2/20 12:20	101.1	↓-1.2
2/20 12:30	99.8	↓-1.3
2/20 12:40	98.4	↓-1.4
2/20 12:50	97.0	↓-1.4
2/20 13:00	95.5	↓-1.5
2/20 13:10	93.9	↓-1.6
2/20 13:20	92.3	↓-1.6
2/20 13:30	90.6	↓-1.7
2/20 13:40	88.8	↓-1.8
2/20 13:50	86.9	↓-1.9
2/20 14:00	85.0	↓-1.9
2/20 14:10	83.0	↓-2.0
2/20 14:20	81.0	↓-2.0
2/20 14:30	78.8	↓-2.2
2/20 14:40	76.7	↓-2.1
2/20 14:50	74.4	↓-2.3
2/20 15:00	72.1	↓-2.3
2/20 15:10	69.8	↓-2.3
2/20 15:20	67.4	↓-2.4
2/20 15:30	65.0	↓-2.4
2/20 15:40	62.6	↓-2.4
2/20 15:50	60.2	↓-2.4
2/20 16:00	57.8	↓-2.4
2/20 16:10	55.3	↓-2.5	最大潮位差
2/20 16:20	53.0	↓-2.3
2/20 16:30	50.6	↓-2.4
2/20 16:40	48.3	↓-2.3
2/20 16:50	46.1	↓-2.2
2/20 17:00	43.9	↓-2.2
2/20 17:10	41.8	↓-2.1
2/20 17:20	39.8	↓-2.0
2/20 17:30	37.9	↓-1.9
2/20 17:40	36.1	↓-1.8
2/20 17:50	34.5	↓-1.6
2/20 18:00	33.0	↓-1.5
2/20 18:10	31.6	↓-1.4
2/20 18:20	30.3	↓-1.3
2/20 18:30	29.2	↓-1.1
2/20 18:40	28.3	↓-0.9
2/20 18:50	27.5	↓-0.8
2/20 19:00	26.8	↓-0.7
2/20 19:10	26.4	↓-0.4
2/20 19:20	26.0	↓-0.4
2/20 19:30	25.9	↓-0.1	干潮
2/20 19:40	25.9	0
2/20 19:50	26.1	↑0.2
2/20 20:00	26.4	↑0.3
2/20 20:10	27.0	↑0.6
2/20 20:20	27.6	↑0.6
2/20 20:30	28.5	↑0.9
2/20 20:40	29.5	↑1.0
2/20 20:50	30.6	↑1.1
2/20 21:00	31.9	↑1.3
2/20 21:10	33.4	↑1.5
2/20 21:20	35.0	↑1.6
2/20 21:30	36.7	↑1.7
2/20 21:40	38.5	↑1.8
2/20 21:50	40.5	↑2.0
2/20 22:00	42.5	↑2.0
2/20 22:10	44.7	↑2.2
2/20 22:20	46.9	↑2.2
2/20 22:30	49.2	↑2.3
2/20 22:40	51.5	↑2.3
2/20 22:50	54.0	↑2.5	最大潮位差
2/20 23:00	56.4	↑2.4
2/20 23:10	58.9	↑2.5	最大潮位差
2/20 23:20	61.3	↑2.4
2/20 23:30	63.8	↑2.5	最大潮位差
2/20 23:40	66.3	↑2.5	最大潮位差
2/20 23:50	68.8	↑2.5	最大潮位差