20 (木)	03:16	09:56	16:04	22:01
	84cm	1cm	81cm	25cm
大潮 出 04:52 入 18:24 出 04:52 入 18:31 潮干狩り ◎ 07:47～11:59

函館（北海道）2023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	44.3	↑2.9
4/20 00:10	47.3	↑3.0
4/20 00:20	50.4	↑3.1
4/20 00:30	53.4	↑3.0
4/20 00:40	56.5	↑3.1
4/20 00:50	59.5	↑3.0
4/20 01:00	62.4	↑2.9
4/20 01:10	65.2	↑2.8
4/20 01:20	67.9	↑2.7
4/20 01:30	70.4	↑2.5
4/20 01:40	72.8	↑2.4
4/20 01:50	75.0	↑2.2
4/20 02:00	76.9	↑1.9
4/20 02:10	78.7	↑1.8
4/20 02:20	80.2	↑1.5
4/20 02:30	81.4	↑1.2
4/20 02:40	82.4	↑1.0
4/20 02:50	83.1	↑0.7
4/20 03:00	83.6	↑0.5
4/20 03:10	83.9	↑0.3	満潮
4/20 03:20	83.9	0
4/20 03:30	83.6	↓-0.3
4/20 03:40	83.1	↓-0.5
4/20 03:50	82.4	↓-0.7
4/20 04:00	81.4	↓-1.0
4/20 04:10	80.2	↓-1.2
4/20 04:20	78.9	↓-1.3
4/20 04:30	77.3	↓-1.6
4/20 04:40	75.5	↓-1.8
4/20 04:50	73.5	↓-2.0
4/20 05:00	71.3	↓-2.2
4/20 05:10	69.0	↓-2.3
4/20 05:20	66.5	↓-2.5
4/20 05:30	63.9	↓-2.6
4/20 05:40	61.2	↓-2.7
4/20 05:50	58.3	↓-2.9
4/20 06:00	55.3	↓-3.0
4/20 06:10	52.2	↓-3.1
4/20 06:20	49.1	↓-3.1
4/20 06:30	45.8	↓-3.3
4/20 06:40	42.6	↓-3.2
4/20 06:50	39.3	↓-3.3
4/20 07:00	36.1	↓-3.2
4/20 07:10	32.8	↓-3.3
4/20 07:20	29.7	↓-3.1
4/20 07:30	26.5	↓-3.2
4/20 07:40	23.5	↓-3.0
4/20 07:50	20.6	↓-2.9
4/20 08:00	17.8	↓-2.8
4/20 08:10	15.1	↓-2.7
4/20 08:20	12.7	↓-2.4
4/20 08:30	10.4	↓-2.3
4/20 08:40	8.3	↓-2.1
4/20 08:50	6.5	↓-1.8
4/20 09:00	4.8	↓-1.7
4/20 09:10	3.5	↓-1.3
4/20 09:20	2.4	↓-1.1
4/20 09:30	1.5	↓-0.9
4/20 09:40	0.9	↓-0.6
4/20 09:50	0.7	↓-0.2	干潮
4/20 10:00	0.7	0
4/20 10:10	1.0	↑0.3
4/20 10:20	1.5	↑0.5
4/20 10:30	2.4	↑0.9
4/20 10:40	3.6	↑1.2
4/20 10:50	5.0	↑1.4
4/20 11:00	6.8	↑1.8
4/20 11:10	8.8	↑2.0
4/20 11:20	11.0	↑2.2
4/20 11:30	13.5	↑2.5
4/20 11:40	16.2	↑2.7
4/20 11:50	19.1	↑2.9
4/20 12:00	22.2	↑3.1
4/20 12:10	25.4	↑3.2
4/20 12:20	28.8	↑3.4
4/20 12:30	32.3	↑3.5
4/20 12:40	35.8	↑3.5
4/20 12:50	39.3	↑3.5
4/20 13:00	42.9	↑3.6	最大潮位差
4/20 13:10	46.4	↑3.5
4/20 13:20	49.9	↑3.5
4/20 13:30	53.3	↑3.4
4/20 13:40	56.5	↑3.2
4/20 13:50	59.6	↑3.1
4/20 14:00	62.6	↑3.0
4/20 14:10	65.4	↑2.8
4/20 14:20	67.9	↑2.5
4/20 14:30	70.3	↑2.4
4/20 14:40	72.4	↑2.1
4/20 14:50	74.3	↑1.9
4/20 15:00	75.9	↑1.6
4/20 15:10	77.3	↑1.4
4/20 15:20	78.5	↑1.2
4/20 15:30	79.4	↑0.9
4/20 15:40	80.0	↑0.6
4/20 15:50	80.5	↑0.5
4/20 16:00	80.6	↑0.1	満潮
4/20 16:10	80.6	0
4/20 16:20	80.3	↓-0.3
4/20 16:30	79.9	↓-0.4
4/20 16:40	79.2	↓-0.7
4/20 16:50	78.3	↓-0.9
4/20 17:00	77.3	↓-1.0
4/20 17:10	76.0	↓-1.3
4/20 17:20	74.7	↓-1.3
4/20 17:30	73.1	↓-1.6
4/20 17:40	71.4	↓-1.7
4/20 17:50	69.6	↓-1.8
4/20 18:00	67.6	↓-2.0
4/20 18:10	65.5	↓-2.1
4/20 18:20	63.3	↓-2.2
4/20 18:30	61.1	↓-2.2
4/20 18:40	58.7	↓-2.4
4/20 18:50	56.3	↓-2.4
4/20 19:00	53.9	↓-2.4
4/20 19:10	51.4	↓-2.5
4/20 19:20	49.0	↓-2.4
4/20 19:30	46.5	↓-2.5
4/20 19:40	44.1	↓-2.4
4/20 19:50	41.8	↓-2.3
4/20 20:00	39.5	↓-2.3
4/20 20:10	37.3	↓-2.2
4/20 20:20	35.3	↓-2.0
4/20 20:30	33.3	↓-2.0
4/20 20:40	31.5	↓-1.8
4/20 20:50	29.9	↓-1.6
4/20 21:00	28.5	↓-1.4
4/20 21:10	27.3	↓-1.2
4/20 21:20	26.2	↓-1.1
4/20 21:30	25.4	↓-0.8
4/20 21:40	24.8	↓-0.6
4/20 21:50	24.4	↓-0.4
4/20 22:00	24.3	↓-0.1	干潮
4/20 22:10	24.4	↑0.1
4/20 22:20	24.8	↑0.4
4/20 22:30	25.4	↑0.6
4/20 22:40	26.3	↑0.9
4/20 22:50	27.4	↑1.1
4/20 23:00	28.7	↑1.3
4/20 23:10	30.3	↑1.6
4/20 23:20	32.1	↑1.8
4/20 23:30	34.1	↑2.0
4/20 23:40	36.3	↑2.2
4/20 23:50	38.6	↑2.3