20 (木)	00:56	07:11	12:15	18:27
	107cm	66cm	91cm	48cm
若潮 出 04:34 入 18:11 出 02:16 入 13:44

釧路（北海道）2028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	104.0	↑0.8
4/20 00:10	104.7	↑0.7
4/20 00:20	105.2	↑0.5
4/20 00:30	105.6	↑0.4
4/20 00:40	105.9	↑0.3
4/20 00:50	106.0	↑0.1	満潮
4/20 01:00	106.0	0
4/20 01:10	105.9	↓-0.1
4/20 01:20	105.6	↓-0.3
4/20 01:30	105.2	↓-0.4
4/20 01:40	104.6	↓-0.6
4/20 01:50	104.0	↓-0.6
4/20 02:00	103.1	↓-0.9
4/20 02:10	102.2	↓-0.9
4/20 02:20	101.1	↓-1.1
4/20 02:30	100.0	↓-1.1
4/20 02:40	98.7	↓-1.3
4/20 02:50	97.3	↓-1.4
4/20 03:00	95.8	↓-1.5
4/20 03:10	94.2	↓-1.6
4/20 03:20	92.6	↓-1.6
4/20 03:30	90.9	↓-1.7
4/20 03:40	89.2	↓-1.7
4/20 03:50	87.4	↓-1.8
4/20 04:00	85.7	↓-1.7
4/20 04:10	84.0	↓-1.7
4/20 04:20	82.3	↓-1.7
4/20 04:30	80.6	↓-1.7
4/20 04:40	79.0	↓-1.6
4/20 04:50	77.4	↓-1.6
4/20 05:00	75.9	↓-1.5
4/20 05:10	74.5	↓-1.4
4/20 05:20	73.2	↓-1.3
4/20 05:30	71.9	↓-1.3
4/20 05:40	70.8	↓-1.1
4/20 05:50	69.8	↓-1.0
4/20 06:00	68.9	↓-0.9
4/20 06:10	68.1	↓-0.8
4/20 06:20	67.4	↓-0.7
4/20 06:30	66.8	↓-0.6
4/20 06:40	66.4	↓-0.4
4/20 06:50	66.1	↓-0.3
4/20 07:00	65.9	↓-0.2
4/20 07:10	65.8	↓-0.1	干潮
4/20 07:20	65.9	↑0.1
4/20 07:30	66.1	↑0.2
4/20 07:40	66.4	↑0.3
4/20 07:50	66.8	↑0.4
4/20 08:00	67.4	↑0.6
4/20 08:10	68.1	↑0.7
4/20 08:20	68.9	↑0.8
4/20 08:30	69.8	↑0.9
4/20 08:40	70.8	↑1.0
4/20 08:50	71.9	↑1.1
4/20 09:00	73.1	↑1.2
4/20 09:10	74.3	↑1.2
4/20 09:20	75.5	↑1.2
4/20 09:30	76.8	↑1.3
4/20 09:40	78.1	↑1.3
4/20 09:50	79.4	↑1.3
4/20 10:00	80.7	↑1.3
4/20 10:10	82.0	↑1.3
4/20 10:20	83.2	↑1.2
4/20 10:30	84.3	↑1.1
4/20 10:40	85.4	↑1.1
4/20 10:50	86.4	↑1.0
4/20 11:00	87.3	↑0.9
4/20 11:10	88.1	↑0.8
4/20 11:20	88.7	↑0.6
4/20 11:30	89.3	↑0.6
4/20 11:40	89.8	↑0.5
4/20 11:50	90.1	↑0.3
4/20 12:00	90.4	↑0.3
4/20 12:10	90.5	↑0.1	満潮
4/20 12:20	90.5	0
4/20 12:30	90.3	↓-0.2
4/20 12:40	90.1	↓-0.2
4/20 12:50	89.7	↓-0.4
4/20 13:00	89.2	↓-0.5
4/20 13:10	88.6	↓-0.6
4/20 13:20	87.9	↓-0.7
4/20 13:30	87.1	↓-0.8
4/20 13:40	86.1	↓-1.0
4/20 13:50	85.1	↓-1.0
4/20 14:00	83.9	↓-1.2
4/20 14:10	82.6	↓-1.3
4/20 14:20	81.2	↓-1.4
4/20 14:30	79.7	↓-1.5
4/20 14:40	78.1	↓-1.6
4/20 14:50	76.4	↓-1.7
4/20 15:00	74.6	↓-1.8
4/20 15:10	72.8	↓-1.8
4/20 15:20	71.0	↓-1.8
4/20 15:30	69.1	↓-1.9
4/20 15:40	67.2	↓-1.9
4/20 15:50	65.3	↓-1.9
4/20 16:00	63.4	↓-1.9
4/20 16:10	61.5	↓-1.9
4/20 16:20	59.7	↓-1.8
4/20 16:30	58.0	↓-1.7
4/20 16:40	56.4	↓-1.6
4/20 16:50	54.9	↓-1.5
4/20 17:00	53.5	↓-1.4
4/20 17:10	52.2	↓-1.3
4/20 17:20	51.1	↓-1.1
4/20 17:30	50.1	↓-1.0
4/20 17:40	49.3	↓-0.8
4/20 17:50	48.6	↓-0.7
4/20 18:00	48.1	↓-0.5
4/20 18:10	47.7	↓-0.4
4/20 18:20	47.6	↓-0.1	干潮
4/20 18:30	47.5	↓-0.1
4/20 18:40	47.7	↑0.2
4/20 18:50	48.0	↑0.3
4/20 19:00	48.5	↑0.5
4/20 19:10	49.2	↑0.7
4/20 19:20	50.0	↑0.8
4/20 19:30	51.0	↑1.0
4/20 19:40	52.2	↑1.2
4/20 19:50	53.5	↑1.3
4/20 20:00	55.0	↑1.5
4/20 20:10	56.6	↑1.6
4/20 20:20	58.4	↑1.8
4/20 20:30	60.3	↑1.9
4/20 20:40	62.3	↑2.0
4/20 20:50	64.5	↑2.2
4/20 21:00	66.8	↑2.3
4/20 21:10	69.1	↑2.3
4/20 21:20	71.5	↑2.4
4/20 21:30	74.0	↑2.5	最大潮位差
4/20 21:40	76.5	↑2.5	最大潮位差
4/20 21:50	79.0	↑2.5	最大潮位差
4/20 22:00	81.5	↑2.5	最大潮位差
4/20 22:10	84.0	↑2.5	最大潮位差
4/20 22:20	86.4	↑2.4
4/20 22:30	88.8	↑2.4
4/20 22:40	91.1	↑2.3
4/20 22:50	93.3	↑2.2
4/20 23:00	95.4	↑2.1
4/20 23:10	97.4	↑2.0
4/20 23:20	99.3	↑1.9
4/20 23:30	101.0	↑1.7
4/20 23:40	102.5	↑1.5
4/20 23:50	104.0	↑1.5