20 (金)	04:35	10:30	16:58	23:05
	84cm	36cm	99cm	45cm
中潮 出 06:14 入 16:58 出 07:17 入 20:10

コイセボイ（北海道）2026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	43.6	↑1.2
2/20 00:10	44.9	↑1.3
2/20 00:20	46.3	↑1.4
2/20 00:30	47.9	↑1.6
2/20 00:40	49.6	↑1.7
2/20 00:50	51.4	↑1.8
2/20 01:00	53.3	↑1.9
2/20 01:10	55.2	↑1.9
2/20 01:20	57.2	↑2.0
2/20 01:30	59.2	↑2.0
2/20 01:40	61.2	↑2.0
2/20 01:50	63.3	↑2.1
2/20 02:00	65.3	↑2.0
2/20 02:10	67.2	↑1.9
2/20 02:20	69.2	↑2.0
2/20 02:30	71.0	↑1.8
2/20 02:40	72.8	↑1.8
2/20 02:50	74.5	↑1.7
2/20 03:00	76.1	↑1.6
2/20 03:10	77.5	↑1.4
2/20 03:20	78.8	↑1.3
2/20 03:30	80.0	↑1.2
2/20 03:40	81.0	↑1.0
2/20 03:50	81.9	↑0.9
2/20 04:00	82.6	↑0.7
2/20 04:10	83.1	↑0.5
2/20 04:20	83.4	↑0.3
2/20 04:30	83.6	↑0.2	満潮
2/20 04:40	83.6	0
2/20 04:50	83.4	↓-0.2
2/20 05:00	83.0	↓-0.4
2/20 05:10	82.4	↓-0.6
2/20 05:20	81.6	↓-0.8
2/20 05:30	80.7	↓-0.9
2/20 05:40	79.6	↓-1.1
2/20 05:50	78.4	↓-1.2
2/20 06:00	77.0	↓-1.4
2/20 06:10	75.5	↓-1.5
2/20 06:20	73.9	↓-1.6
2/20 06:30	72.1	↓-1.8
2/20 06:40	70.3	↓-1.8
2/20 06:50	68.3	↓-2.0
2/20 07:00	66.3	↓-2.0
2/20 07:10	64.2	↓-2.1
2/20 07:20	62.1	↓-2.1
2/20 07:30	60.0	↓-2.1
2/20 07:40	57.9	↓-2.1
2/20 07:50	55.8	↓-2.1
2/20 08:00	53.7	↓-2.1
2/20 08:10	51.6	↓-2.1
2/20 08:20	49.7	↓-1.9
2/20 08:30	47.7	↓-2.0
2/20 08:40	45.9	↓-1.8
2/20 08:50	44.2	↓-1.7
2/20 09:00	42.6	↓-1.6
2/20 09:10	41.1	↓-1.5
2/20 09:20	39.8	↓-1.3
2/20 09:30	38.7	↓-1.1
2/20 09:40	37.7	↓-1.0
2/20 09:50	36.8	↓-0.9
2/20 10:00	36.2	↓-0.6
2/20 10:10	35.7	↓-0.5
2/20 10:20	35.4	↓-0.3	干潮
2/20 10:30	35.4	0	干潮
2/20 10:40	35.5	↑0.1
2/20 10:50	35.8	↑0.3
2/20 11:00	36.3	↑0.5
2/20 11:10	37.1	↑0.8
2/20 11:20	38.0	↑0.9
2/20 11:30	39.1	↑1.1
2/20 11:40	40.3	↑1.2
2/20 11:50	41.8	↑1.5
2/20 12:00	43.4	↑1.6
2/20 12:10	45.2	↑1.8
2/20 12:20	47.1	↑1.9
2/20 12:30	49.1	↑2.0
2/20 12:40	51.3	↑2.2
2/20 12:50	53.5	↑2.2
2/20 13:00	55.9	↑2.4
2/20 13:10	58.3	↑2.4
2/20 13:20	60.8	↑2.5
2/20 13:30	63.3	↑2.5
2/20 13:40	65.8	↑2.5
2/20 13:50	68.4	↑2.6	最大潮位差
2/20 14:00	70.9	↑2.5
2/20 14:10	73.4	↑2.5
2/20 14:20	75.9	↑2.5
2/20 14:30	78.3	↑2.4
2/20 14:40	80.6	↑2.3
2/20 14:50	82.8	↑2.2
2/20 15:00	85.0	↑2.2
2/20 15:10	87.0	↑2.0
2/20 15:20	88.8	↑1.8
2/20 15:30	90.6	↑1.8
2/20 15:40	92.1	↑1.5
2/20 15:50	93.5	↑1.4
2/20 16:00	94.7	↑1.2
2/20 16:10	95.8	↑1.1
2/20 16:20	96.6	↑0.8
2/20 16:30	97.3	↑0.7
2/20 16:40	97.7	↑0.4
2/20 16:50	98.0	↑0.3	満潮
2/20 17:00	98.0	0
2/20 17:10	97.8	↓-0.2
2/20 17:20	97.5	↓-0.3
2/20 17:30	96.9	↓-0.6
2/20 17:40	96.2	↓-0.7
2/20 17:50	95.2	↓-1.0
2/20 18:00	94.1	↓-1.1
2/20 18:10	92.9	↓-1.2
2/20 18:20	91.4	↓-1.5
2/20 18:30	89.8	↓-1.6
2/20 18:40	88.1	↓-1.7
2/20 18:50	86.3	↓-1.8
2/20 19:00	84.3	↓-2.0
2/20 19:10	82.3	↓-2.0
2/20 19:20	80.1	↓-2.2
2/20 19:30	78.0	↓-2.1
2/20 19:40	75.7	↓-2.3
2/20 19:50	73.5	↓-2.2
2/20 20:00	71.2	↓-2.3
2/20 20:10	68.9	↓-2.3
2/20 20:20	66.6	↓-2.3
2/20 20:30	64.4	↓-2.2
2/20 20:40	62.3	↓-2.1
2/20 20:50	60.2	↓-2.1
2/20 21:00	58.2	↓-2.0
2/20 21:10	56.2	↓-2.0
2/20 21:20	54.4	↓-1.8
2/20 21:30	52.7	↓-1.7
2/20 21:40	51.2	↓-1.5
2/20 21:50	49.8	↓-1.4
2/20 22:00	48.6	↓-1.2
2/20 22:10	47.5	↓-1.1
2/20 22:20	46.6	↓-0.9
2/20 22:30	45.9	↓-0.7
2/20 22:40	45.3	↓-0.6
2/20 22:50	45.0	↓-0.3
2/20 23:00	44.8	↓-0.2	干潮
2/20 23:10	44.8	0
2/20 23:20	45.0	↑0.2
2/20 23:30	45.4	↑0.4
2/20 23:40	46.0	↑0.6
2/20 23:50	46.8	↑0.8