20 (月)	03:48	11:05	18:09	22:43
	131cm	-4cm	113cm	83cm
中潮 出 04:34 入 18:11 出 05:47 入 22:02 潮干狩り ◎ 08:32～13:40

釧路（北海道）2026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	84.7	↑1.9
4/20 00:10	86.8	↑2.1
4/20 00:20	89.0	↑2.2
4/20 00:30	91.3	↑2.3
4/20 00:40	93.8	↑2.5
4/20 00:50	96.4	↑2.6
4/20 01:00	99.0	↑2.6
4/20 01:10	101.7	↑2.7
4/20 01:20	104.5	↑2.8
4/20 01:30	107.2	↑2.7
4/20 01:40	109.9	↑2.7
4/20 01:50	112.6	↑2.7
4/20 02:00	115.2	↑2.6
4/20 02:10	117.7	↑2.5
4/20 02:20	120.0	↑2.3
4/20 02:30	122.2	↑2.2
4/20 02:40	124.1	↑1.9
4/20 02:50	125.9	↑1.8
4/20 03:00	127.4	↑1.5
4/20 03:10	128.6	↑1.2
4/20 03:20	129.5	↑0.9
4/20 03:30	130.2	↑0.7
4/20 03:40	130.5	↑0.3	満潮
4/20 03:50	130.6	↑0.1
4/20 04:00	130.3	↓-0.3
4/20 04:10	129.8	↓-0.5
4/20 04:20	128.9	↓-0.9
4/20 04:30	127.7	↓-1.2
4/20 04:40	126.2	↓-1.5
4/20 04:50	124.5	↓-1.7
4/20 05:00	122.4	↓-2.1
4/20 05:10	120.1	↓-2.3
4/20 05:20	117.5	↓-2.6
4/20 05:30	114.7	↓-2.8
4/20 05:40	111.5	↓-3.2
4/20 05:50	108.2	↓-3.3
4/20 06:00	104.5	↓-3.7
4/20 06:10	100.7	↓-3.8
4/20 06:20	96.6	↓-4.1
4/20 06:30	92.4	↓-4.2
4/20 06:40	87.9	↓-4.5
4/20 06:50	83.3	↓-4.6
4/20 07:00	78.6	↓-4.7
4/20 07:10	73.7	↓-4.9
4/20 07:20	68.7	↓-5.0
4/20 07:30	63.7	↓-5.0
4/20 07:40	58.7	↓-5.0
4/20 07:50	53.6	↓-5.1	最大潮位差
4/20 08:00	48.6	↓-5.0
4/20 08:10	43.6	↓-5.0
4/20 08:20	38.8	↓-4.8
4/20 08:30	34.1	↓-4.7
4/20 08:40	29.5	↓-4.6
4/20 08:50	25.2	↓-4.3
4/20 09:00	21.1	↓-4.1
4/20 09:10	17.2	↓-3.9
4/20 09:20	13.6	↓-3.6
4/20 09:30	10.3	↓-3.3
4/20 09:40	7.3	↓-3.0
4/20 09:50	4.6	↓-2.7
4/20 10:00	2.2	↓-2.4
4/20 10:10	0.1	↓-2.1
4/20 10:20	-1.6	↓-1.7
4/20 10:30	-2.9	↓-1.3
4/20 10:40	-3.9	↓-1.0
4/20 10:50	-4.6	↓-0.7
4/20 11:00	-4.9	↓-0.3	干潮
4/20 11:10	-4.9	0
4/20 11:20	-4.6	↑0.3
4/20 11:30	-3.8	↑0.8
4/20 11:40	-2.8	↑1.0
4/20 11:50	-1.4	↑1.4
4/20 12:00	0.3	↑1.7
4/20 12:10	2.4	↑2.1
4/20 12:20	4.8	↑2.4
4/20 12:30	7.5	↑2.7
4/20 12:40	10.5	↑3.0
4/20 12:50	13.7	↑3.2
4/20 13:00	17.3	↑3.6
4/20 13:10	21.1	↑3.8
4/20 13:20	25.1	↑4.0
4/20 13:30	29.2	↑4.1
4/20 13:40	33.6	↑4.4
4/20 13:50	38.1	↑4.5
4/20 14:00	42.7	↑4.6
4/20 14:10	47.3	↑4.6
4/20 14:20	52.0	↑4.7
4/20 14:30	56.6	↑4.6
4/20 14:40	61.2	↑4.6
4/20 14:50	65.7	↑4.5
4/20 15:00	70.1	↑4.4
4/20 15:10	74.4	↑4.3
4/20 15:20	78.5	↑4.1
4/20 15:30	82.4	↑3.9
4/20 15:40	86.1	↑3.7
4/20 15:50	89.6	↑3.5
4/20 16:00	92.9	↑3.3
4/20 16:10	95.9	↑3.0
4/20 16:20	98.7	↑2.8
4/20 16:30	101.2	↑2.5
4/20 16:40	103.5	↑2.3
4/20 16:50	105.5	↑2.0
4/20 17:00	107.2	↑1.7
4/20 17:10	108.7	↑1.5
4/20 17:20	110.0	↑1.3
4/20 17:30	111.0	↑1.0
4/20 17:40	111.8	↑0.8
4/20 17:50	112.3	↑0.5
4/20 18:00	112.6	↑0.3	満潮
4/20 18:10	112.7	↑0.1
4/20 18:20	112.6	↓-0.1
4/20 18:30	112.2	↓-0.4
4/20 18:40	111.6	↓-0.6
4/20 18:50	110.9	↓-0.7
4/20 19:00	109.9	↓-1.0
4/20 19:10	108.8	↓-1.1
4/20 19:20	107.5	↓-1.3
4/20 19:30	106.1	↓-1.4
4/20 19:40	104.6	↓-1.5
4/20 19:50	103.0	↓-1.6
4/20 20:00	101.3	↓-1.7
4/20 20:10	99.6	↓-1.7
4/20 20:20	97.9	↓-1.7
4/20 20:30	96.1	↓-1.8
4/20 20:40	94.4	↓-1.7
4/20 20:50	92.7	↓-1.7
4/20 21:00	91.2	↓-1.5
4/20 21:10	89.7	↓-1.5
4/20 21:20	88.3	↓-1.4
4/20 21:30	87.1	↓-1.2
4/20 21:40	86.0	↓-1.1
4/20 21:50	85.0	↓-1.0
4/20 22:00	84.2	↓-0.8
4/20 22:10	83.6	↓-0.6
4/20 22:20	83.2	↓-0.4
4/20 22:30	82.9	↓-0.3
4/20 22:40	82.8	↓-0.1	干潮
4/20 22:50	82.8	0
4/20 23:00	83.1	↑0.3
4/20 23:10	83.5	↑0.4
4/20 23:20	84.0	↑0.5
4/20 23:30	84.7	↑0.7
4/20 23:40	85.6	↑0.9
4/20 23:50	86.6	↑1.0