20 (水)	05:01	12:06	18:38	23:46
	94cm	-4cm	71cm	42cm
中潮 出 04:51 入 18:24 出 22:49 入 06:52 潮干狩り ◎ 09:41～14:35

函館（北海道）2022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	37.1	↑0.8
4/20 00:10	38.2	↑1.1
4/20 00:20	39.4	↑1.2
4/20 00:30	40.9	↑1.5
4/20 00:40	42.5	↑1.6
4/20 00:50	44.4	↑1.9
4/20 01:00	46.4	↑2.0
4/20 01:10	48.5	↑2.1
4/20 01:20	50.8	↑2.3
4/20 01:30	53.1	↑2.3
4/20 01:40	55.6	↑2.5
4/20 01:50	58.2	↑2.6
4/20 02:00	60.8	↑2.6
4/20 02:10	63.4	↑2.6
4/20 02:20	66.1	↑2.7
4/20 02:30	68.7	↑2.6
4/20 02:40	71.4	↑2.7
4/20 02:50	73.9	↑2.5
4/20 03:00	76.5	↑2.6
4/20 03:10	78.9	↑2.4
4/20 03:20	81.2	↑2.3
4/20 03:30	83.3	↑2.1
4/20 03:40	85.3	↑2.0
4/20 03:50	87.1	↑1.8
4/20 04:00	88.7	↑1.6
4/20 04:10	90.2	↑1.5
4/20 04:20	91.3	↑1.1
4/20 04:30	92.2	↑0.9
4/20 04:40	92.9	↑0.7
4/20 04:50	93.3	↑0.4
4/20 05:00	93.5	↑0.2	満潮
4/20 05:10	93.3	↓-0.2
4/20 05:20	92.9	↓-0.4
4/20 05:30	92.2	↓-0.7
4/20 05:40	91.2	↓-1.0
4/20 05:50	90.0	↓-1.2
4/20 06:00	88.5	↓-1.5
4/20 06:10	86.8	↓-1.7
4/20 06:20	84.8	↓-2.0
4/20 06:30	82.7	↓-2.1
4/20 06:40	80.3	↓-2.4
4/20 06:50	77.8	↓-2.5
4/20 07:00	75.1	↓-2.7
4/20 07:10	72.2	↓-2.9
4/20 07:20	69.2	↓-3.0
4/20 07:30	66.1	↓-3.1
4/20 07:40	62.9	↓-3.2
4/20 07:50	59.6	↓-3.3
4/20 08:00	56.2	↓-3.4
4/20 08:10	52.8	↓-3.4
4/20 08:20	49.3	↓-3.5	最大潮位差
4/20 08:30	45.8	↓-3.5	最大潮位差
4/20 08:40	42.3	↓-3.5	最大潮位差
4/20 08:50	38.8	↓-3.5	最大潮位差
4/20 09:00	35.3	↓-3.5	最大潮位差
4/20 09:10	31.9	↓-3.4
4/20 09:20	28.5	↓-3.4
4/20 09:30	25.2	↓-3.3
4/20 09:40	21.9	↓-3.3
4/20 09:50	18.8	↓-3.1
4/20 10:00	15.8	↓-3.0
4/20 10:10	13.0	↓-2.8
4/20 10:20	10.3	↓-2.7
4/20 10:30	7.8	↓-2.5
4/20 10:40	5.5	↓-2.3
4/20 10:50	3.4	↓-2.1
4/20 11:00	1.5	↓-1.9
4/20 11:10	-0.1	↓-1.6
4/20 11:20	-1.5	↓-1.4
4/20 11:30	-2.6	↓-1.1
4/20 11:40	-3.4	↓-0.8
4/20 11:50	-4.0	↓-0.6
4/20 12:00	-4.2	↓-0.2	干潮
4/20 12:10	-4.2	0
4/20 12:20	-3.9	↑0.3
4/20 12:30	-3.4	↑0.5
4/20 12:40	-2.5	↑0.9
4/20 12:50	-1.5	↑1.0
4/20 13:00	-0.1	↑1.4
4/20 13:10	1.4	↑1.5
4/20 13:20	3.2	↑1.8
4/20 13:30	5.2	↑2.0
4/20 13:40	7.3	↑2.1
4/20 13:50	9.7	↑2.4
4/20 14:00	12.2	↑2.5
4/20 14:10	14.8	↑2.6
4/20 14:20	17.5	↑2.7
4/20 14:30	20.4	↑2.9
4/20 14:40	23.3	↑2.9
4/20 14:50	26.3	↑3.0
4/20 15:00	29.3	↑3.0
4/20 15:10	32.4	↑3.1
4/20 15:20	35.4	↑3.0
4/20 15:30	38.4	↑3.0
4/20 15:40	41.4	↑3.0
4/20 15:50	44.3	↑2.9
4/20 16:00	47.1	↑2.8
4/20 16:10	49.9	↑2.8
4/20 16:20	52.5	↑2.6
4/20 16:30	55.0	↑2.5
4/20 16:40	57.3	↑2.3
4/20 16:50	59.5	↑2.2
4/20 17:00	61.5	↑2.0
4/20 17:10	63.3	↑1.8
4/20 17:20	64.9	↑1.6
4/20 17:30	66.3	↑1.4
4/20 17:40	67.5	↑1.2
4/20 17:50	68.5	↑1.0
4/20 18:00	69.3	↑0.8
4/20 18:10	69.9	↑0.6
4/20 18:20	70.3	↑0.4
4/20 18:30	70.6	↑0.3	満潮
4/20 18:40	70.6	0
4/20 18:50	70.5	↓-0.1
4/20 19:00	70.2	↓-0.3
4/20 19:10	69.7	↓-0.5
4/20 19:20	69.1	↓-0.6
4/20 19:30	68.4	↓-0.7
4/20 19:40	67.6	↓-0.8
4/20 19:50	66.7	↓-0.9
4/20 20:00	65.6	↓-1.1
4/20 20:10	64.5	↓-1.1
4/20 20:20	63.4	↓-1.1
4/20 20:30	62.1	↓-1.3
4/20 20:40	60.8	↓-1.3
4/20 20:50	59.5	↓-1.3
4/20 21:00	58.1	↓-1.4
4/20 21:10	56.7	↓-1.4
4/20 21:20	55.3	↓-1.4
4/20 21:30	53.9	↓-1.4
4/20 21:40	52.5	↓-1.4
4/20 21:50	51.1	↓-1.4
4/20 22:00	49.8	↓-1.3
4/20 22:10	48.5	↓-1.3
4/20 22:20	47.3	↓-1.2
4/20 22:30	46.1	↓-1.2
4/20 22:40	45.1	↓-1.0
4/20 22:50	44.1	↓-1.0
4/20 23:00	43.3	↓-0.8
4/20 23:10	42.6	↓-0.7
4/20 23:20	42.1	↓-0.5
4/20 23:30	41.8	↓-0.3
4/20 23:40	41.6	↓-0.2	干潮
4/20 23:50	41.6	0