20 (土)	07:33	00:03	-	15:58
	103cm	56cm	-	40cm
小潮 出 06:13 入 16:58 出 10:11 入 00:28

コイセボイ（北海道）2021年02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
2/20 00:00	55.2	↓-0.1	干潮
2/20 00:10	55.3	↑0.1
2/20 00:20	55.4	↑0.1
2/20 00:30	55.6	↑0.2
2/20 00:40	55.8	↑0.2
2/20 00:50	56.2	↑0.4
2/20 01:00	56.7	↑0.5
2/20 01:10	57.2	↑0.5
2/20 01:20	57.9	↑0.7
2/20 01:30	58.6	↑0.7
2/20 01:40	59.4	↑0.8
2/20 01:50	60.4	↑1.0
2/20 02:00	61.4	↑1.0
2/20 02:10	62.5	↑1.1
2/20 02:20	63.7	↑1.2
2/20 02:30	64.9	↑1.2
2/20 02:40	66.3	↑1.4
2/20 02:50	67.7	↑1.4
2/20 03:00	69.1	↑1.4
2/20 03:10	70.7	↑1.6
2/20 03:20	72.2	↑1.5
2/20 03:30	73.8	↑1.6
2/20 03:40	75.5	↑1.7
2/20 03:50	77.1	↑1.6
2/20 04:00	78.8	↑1.7
2/20 04:10	80.5	↑1.7
2/20 04:20	82.2	↑1.7
2/20 04:30	83.8	↑1.6
2/20 04:40	85.5	↑1.7
2/20 04:50	87.1	↑1.6
2/20 05:00	88.7	↑1.6
2/20 05:10	90.2	↑1.5
2/20 05:20	91.7	↑1.5
2/20 05:30	93.1	↑1.4
2/20 05:40	94.4	↑1.3
2/20 05:50	95.6	↑1.2
2/20 06:00	96.8	↑1.2
2/20 06:10	97.8	↑1.0
2/20 06:20	98.8	↑1.0
2/20 06:30	99.6	↑0.8
2/20 06:40	100.4	↑0.8
2/20 06:50	101.0	↑0.6
2/20 07:00	101.5	↑0.5
2/20 07:10	101.8	↑0.3
2/20 07:20	102.0	↑0.2
2/20 07:30	102.1	↑0.1	満潮
2/20 07:40	102.1	0
2/20 07:50	101.9	↓-0.2
2/20 08:00	101.6	↓-0.3
2/20 08:10	101.1	↓-0.5
2/20 08:20	100.6	↓-0.5
2/20 08:30	99.9	↓-0.7
2/20 08:40	99.0	↓-0.9
2/20 08:50	98.1	↓-0.9
2/20 09:00	97.0	↓-1.1
2/20 09:10	95.8	↓-1.2
2/20 09:20	94.5	↓-1.3
2/20 09:30	93.1	↓-1.4
2/20 09:40	91.6	↓-1.5
2/20 09:50	90.0	↓-1.6
2/20 10:00	88.3	↓-1.7
2/20 10:10	86.6	↓-1.7
2/20 10:20	84.8	↓-1.8
2/20 10:30	82.9	↓-1.9
2/20 10:40	81.0	↓-1.9
2/20 10:50	79.0	↓-2.0
2/20 11:00	77.1	↓-1.9
2/20 11:10	75.1	↓-2.0
2/20 11:20	73.0	↓-2.1	最大潮位差
2/20 11:30	71.0	↓-2.0
2/20 11:40	69.0	↓-2.0
2/20 11:50	67.0	↓-2.0
2/20 12:00	65.0	↓-2.0
2/20 12:10	63.1	↓-1.9
2/20 12:20	61.2	↓-1.9
2/20 12:30	59.4	↓-1.8
2/20 12:40	57.5	↓-1.9
2/20 12:50	55.8	↓-1.7
2/20 13:00	54.1	↓-1.7
2/20 13:10	52.5	↓-1.6
2/20 13:20	51.0	↓-1.5
2/20 13:30	49.6	↓-1.4
2/20 13:40	48.2	↓-1.4
2/20 13:50	47.0	↓-1.2
2/20 14:00	45.8	↓-1.2
2/20 14:10	44.7	↓-1.1
2/20 14:20	43.8	↓-0.9
2/20 14:30	42.9	↓-0.9
2/20 14:40	42.1	↓-0.8
2/20 14:50	41.5	↓-0.6
2/20 15:00	40.9	↓-0.6
2/20 15:10	40.4	↓-0.5
2/20 15:20	40.1	↓-0.3
2/20 15:30	39.8	↓-0.3
2/20 15:40	39.6	↓-0.2
2/20 15:50	39.5	↓-0.1	干潮
2/20 16:00	39.5	0
2/20 16:10	39.5	0
2/20 16:20	39.6	↑0.1
2/20 16:30	39.9	↑0.3
2/20 16:40	40.1	↑0.2
2/20 16:50	40.5	↑0.4
2/20 17:00	40.8	↑0.3
2/20 17:10	41.3	↑0.5
2/20 17:20	41.7	↑0.4
2/20 17:30	42.3	↑0.6
2/20 17:40	42.8	↑0.5
2/20 17:50	43.4	↑0.6
2/20 18:00	44.0	↑0.6
2/20 18:10	44.6	↑0.6
2/20 18:20	45.2	↑0.6
2/20 18:30	45.8	↑0.6
2/20 18:40	46.4	↑0.6
2/20 18:50	47.0	↑0.6
2/20 19:00	47.6	↑0.6
2/20 19:10	48.2	↑0.6
2/20 19:20	48.7	↑0.5
2/20 19:30	49.3	↑0.6
2/20 19:40	49.8	↑0.5
2/20 19:50	50.3	↑0.5
2/20 20:00	50.7	↑0.4
2/20 20:10	51.1	↑0.4
2/20 20:20	51.5	↑0.4
2/20 20:30	51.9	↑0.4
2/20 20:40	52.2	↑0.3
2/20 20:50	52.5	↑0.3
2/20 21:00	52.8	↑0.3
2/20 21:10	53.0	↑0.2
2/20 21:20	53.2	↑0.2
2/20 21:30	53.4	↑0.2
2/20 21:40	53.5	↑0.1
2/20 21:50	53.6	↑0.1
2/20 22:00	53.7	↑0.1
2/20 22:10	53.8	↑0.1
2/20 22:20	53.9	↑0.1
2/20 22:30	54.0	↑0.1
2/20 22:40	54.0	0
2/20 22:50	54.1	↑0.1
2/20 23:00	54.2	↑0.1
2/20 23:10	54.2	0
2/20 23:20	54.3	↑0.1
2/20 23:30	54.4	↑0.1
2/20 23:40	54.6	↑0.2
2/20 23:50	54.7	↑0.1