20 (日)	20:26	04:08	-	-
	117cm	45cm	-	-
長潮 出 05:24 入 17:39 出 14:04 入 23:30

那珂湊（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	81.9	↓-2.5	最大潮位差
9/20 00:10	79.4	↓-2.5	最大潮位差
9/20 00:20	76.9	↓-2.5	最大潮位差
9/20 00:30	74.5	↓-2.4
9/20 00:40	72.1	↓-2.4
9/20 00:50	69.7	↓-2.4
9/20 01:00	67.4	↓-2.3
9/20 01:10	65.2	↓-2.2
9/20 01:20	63.1	↓-2.1
9/20 01:30	61.0	↓-2.1
9/20 01:40	59.1	↓-1.9
9/20 01:50	57.2	↓-1.9
9/20 02:00	55.5	↓-1.7
9/20 02:10	53.9	↓-1.6
9/20 02:20	52.4	↓-1.5
9/20 02:30	51.0	↓-1.4
9/20 02:40	49.8	↓-1.2
9/20 02:50	48.7	↓-1.1
9/20 03:00	47.7	↓-1.0
9/20 03:10	46.9	↓-0.8
9/20 03:20	46.2	↓-0.7
9/20 03:30	45.6	↓-0.6
9/20 03:40	45.2	↓-0.4
9/20 03:50	44.9	↓-0.3
9/20 04:00	44.8	↓-0.1	干潮
9/20 04:10	44.7	↓-0.1
9/20 04:20	44.8	↑0.1
9/20 04:30	45.1	↑0.3
9/20 04:40	45.4	↑0.3
9/20 04:50	45.9	↑0.5
9/20 05:00	46.5	↑0.6
9/20 05:10	47.2	↑0.7
9/20 05:20	48.1	↑0.9
9/20 05:30	49.0	↑0.9
9/20 05:40	50.1	↑1.1
9/20 05:50	51.3	↑1.2
9/20 06:00	52.6	↑1.3
9/20 06:10	53.9	↑1.3
9/20 06:20	55.4	↑1.5
9/20 06:30	57.0	↑1.6
9/20 06:40	58.6	↑1.6
9/20 06:50	60.3	↑1.7
9/20 07:00	62.1	↑1.8
9/20 07:10	64.0	↑1.9
9/20 07:20	65.9	↑1.9
9/20 07:30	67.8	↑1.9
9/20 07:40	69.8	↑2.0
9/20 07:50	71.8	↑2.0
9/20 08:00	73.8	↑2.0
9/20 08:10	75.8	↑2.0
9/20 08:20	77.8	↑2.0
9/20 08:30	79.8	↑2.0
9/20 08:40	81.8	↑2.0
9/20 08:50	83.8	↑2.0
9/20 09:00	85.7	↑1.9
9/20 09:10	87.5	↑1.8
9/20 09:20	89.3	↑1.8
9/20 09:30	91.1	↑1.8
9/20 09:40	92.7	↑1.6
9/20 09:50	94.3	↑1.6
9/20 10:00	95.8	↑1.5
9/20 10:10	97.2	↑1.4
9/20 10:20	98.6	↑1.4
9/20 10:30	99.8	↑1.2
9/20 10:40	101.0	↑1.2
9/20 10:50	102.0	↑1.0
9/20 11:00	103.0	↑1.0
9/20 11:10	103.9	↑0.9
9/20 11:20	104.6	↑0.7
9/20 11:30	105.3	↑0.7
9/20 11:40	106.0	↑0.7
9/20 11:50	106.5	↑0.5
9/20 12:00	107.0	↑0.5
9/20 12:10	107.4	↑0.4
9/20 12:20	107.8	↑0.4
9/20 12:30	108.1	↑0.3
9/20 12:40	108.3	↑0.2
9/20 12:50	108.5	↑0.2
9/20 13:00	108.7	↑0.2
9/20 13:10	108.9	↑0.2
9/20 13:20	109.0	↑0.1
9/20 13:30	109.1	↑0.1
9/20 13:40	109.2	↑0.1
9/20 13:50	109.3	↑0.1
9/20 14:00	109.3	0
9/20 14:10	109.4	↑0.1
9/20 14:20	109.5	↑0.1
9/20 14:30	109.6	↑0.1
9/20 14:40	109.6	0
9/20 14:50	109.7	↑0.1
9/20 15:00	109.8	↑0.1
9/20 15:10	109.9	↑0.1
9/20 15:20	110.0	↑0.1
9/20 15:30	110.1	↑0.1
9/20 15:40	110.2	↑0.1
9/20 15:50	110.4	↑0.2
9/20 16:00	110.5	↑0.1
9/20 16:10	110.7	↑0.2
9/20 16:20	110.8	↑0.1
9/20 16:30	111.0	↑0.2
9/20 16:40	111.2	↑0.2
9/20 16:50	111.4	↑0.2
9/20 17:00	111.6	↑0.2
9/20 17:10	111.9	↑0.3
9/20 17:20	112.1	↑0.2
9/20 17:30	112.3	↑0.2
9/20 17:40	112.6	↑0.3
9/20 17:50	112.8	↑0.2
9/20 18:00	113.1	↑0.3
9/20 18:10	113.4	↑0.3
9/20 18:20	113.7	↑0.3
9/20 18:30	114.0	↑0.3
9/20 18:40	114.2	↑0.2
9/20 18:50	114.5	↑0.3
9/20 19:00	114.8	↑0.3
9/20 19:10	115.1	↑0.3
9/20 19:20	115.3	↑0.2
9/20 19:30	115.5	↑0.2
9/20 19:40	115.8	↑0.3
9/20 19:50	115.9	↑0.1
9/20 20:00	116.1	↑0.2
9/20 20:10	116.2	↑0.1
9/20 20:20	116.2	0	満潮
9/20 20:30	116.2	0
9/20 20:40	116.2	0
9/20 20:50	116.1	↓-0.1
9/20 21:00	115.9	↓-0.2
9/20 21:10	115.6	↓-0.3
9/20 21:20	115.2	↓-0.4
9/20 21:30	114.8	↓-0.4
9/20 21:40	114.2	↓-0.6
9/20 21:50	113.6	↓-0.6
9/20 22:00	112.8	↓-0.8
9/20 22:10	112.0	↓-0.8
9/20 22:20	111.0	↓-1.0
9/20 22:30	109.9	↓-1.1
9/20 22:40	108.7	↓-1.2
9/20 22:50	107.4	↓-1.3
9/20 23:00	106.1	↓-1.3
9/20 23:10	104.6	↓-1.5
9/20 23:20	103.0	↓-1.6
9/20 23:30	101.3	↓-1.7
9/20 23:40	99.5	↓-1.8
9/20 23:50	97.7	↓-1.8