20 (月)	05:54	12:29	18:33	-
	96cm	43cm	84cm	-
小潮 出 03:56 入 18:59 出 10:37 入 21:44

コイセボイ（北海道）2026年07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
7/20 00:00	47.7	↑0.4
7/20 00:10	48.2	↑0.5
7/20 00:20	48.9	↑0.7
7/20 00:30	49.8	↑0.9
7/20 00:40	50.8	↑1.0
7/20 00:50	51.9	↑1.1
7/20 01:00	53.1	↑1.2
7/20 01:10	54.5	↑1.4
7/20 01:20	56.0	↑1.5
7/20 01:30	57.6	↑1.6
7/20 01:40	59.2	↑1.6
7/20 01:50	61.0	↑1.8
7/20 02:00	62.8	↑1.8
7/20 02:10	64.7	↑1.9
7/20 02:20	66.7	↑2.0
7/20 02:30	68.6	↑1.9
7/20 02:40	70.6	↑2.0
7/20 02:50	72.6	↑2.0
7/20 03:00	74.6	↑2.0
7/20 03:10	76.6	↑2.0
7/20 03:20	78.5	↑1.9
7/20 03:30	80.4	↑1.9
7/20 03:40	82.2	↑1.8
7/20 03:50	84.0	↑1.8
7/20 04:00	85.7	↑1.7
7/20 04:10	87.3	↑1.6
7/20 04:20	88.7	↑1.4
7/20 04:30	90.1	↑1.4
7/20 04:40	91.3	↑1.2
7/20 04:50	92.4	↑1.1
7/20 05:00	93.4	↑1.0
7/20 05:10	94.1	↑0.7
7/20 05:20	94.8	↑0.7
7/20 05:30	95.3	↑0.5
7/20 05:40	95.6	↑0.3
7/20 05:50	95.7	↑0.1	満潮
7/20 06:00	95.7	0
7/20 06:10	95.5	↓-0.2
7/20 06:20	95.1	↓-0.4
7/20 06:30	94.6	↓-0.5
7/20 06:40	93.9	↓-0.7
7/20 06:50	93.0	↓-0.9
7/20 07:00	92.0	↓-1.0
7/20 07:10	90.9	↓-1.1
7/20 07:20	89.6	↓-1.3
7/20 07:30	88.1	↓-1.5
7/20 07:40	86.6	↓-1.5
7/20 07:50	84.9	↓-1.7
7/20 08:00	83.1	↓-1.8
7/20 08:10	81.3	↓-1.8
7/20 08:20	79.3	↓-2.0
7/20 08:30	77.3	↓-2.0
7/20 08:40	75.3	↓-2.0
7/20 08:50	73.2	↓-2.1
7/20 09:00	71.0	↓-2.2	最大潮位差
7/20 09:10	68.9	↓-2.1
7/20 09:20	66.8	↓-2.1
7/20 09:30	64.6	↓-2.2	最大潮位差
7/20 09:40	62.5	↓-2.1
7/20 09:50	60.5	↓-2.0
7/20 10:00	58.5	↓-2.0
7/20 10:10	56.6	↓-1.9
7/20 10:20	54.7	↓-1.9
7/20 10:30	53.0	↓-1.7
7/20 10:40	51.3	↓-1.7
7/20 10:50	49.8	↓-1.5
7/20 11:00	48.4	↓-1.4
7/20 11:10	47.1	↓-1.3
7/20 11:20	46.0	↓-1.1
7/20 11:30	45.0	↓-1.0
7/20 11:40	44.1	↓-0.9
7/20 11:50	43.4	↓-0.7
7/20 12:00	42.9	↓-0.5
7/20 12:10	42.5	↓-0.4
7/20 12:20	42.3	↓-0.2	干潮
7/20 12:30	42.3	0
7/20 12:40	42.4	↑0.1
7/20 12:50	42.7	↑0.3
7/20 13:00	43.1	↑0.4
7/20 13:10	43.7	↑0.6
7/20 13:20	44.4	↑0.7
7/20 13:30	45.3	↑0.9
7/20 13:40	46.3	↑1.0
7/20 13:50	47.4	↑1.1
7/20 14:00	48.7	↑1.3
7/20 14:10	50.0	↑1.3
7/20 14:20	51.5	↑1.5
7/20 14:30	53.0	↑1.5
7/20 14:40	54.6	↑1.6
7/20 14:50	56.3	↑1.7
7/20 15:00	58.0	↑1.7
7/20 15:10	59.7	↑1.7
7/20 15:20	61.4	↑1.7
7/20 15:30	63.2	↑1.8
7/20 15:40	65.0	↑1.8
7/20 15:50	66.7	↑1.7
7/20 16:00	68.4	↑1.7
7/20 16:10	70.1	↑1.7
7/20 16:20	71.7	↑1.6
7/20 16:30	73.2	↑1.5
7/20 16:40	74.7	↑1.5
7/20 16:50	76.1	↑1.4
7/20 17:00	77.4	↑1.3
7/20 17:10	78.5	↑1.1
7/20 17:20	79.6	↑1.1
7/20 17:30	80.5	↑0.9
7/20 17:40	81.3	↑0.8
7/20 17:50	82.0	↑0.7
7/20 18:00	82.5	↑0.5
7/20 18:10	82.9	↑0.4
7/20 18:20	83.2	↑0.3
7/20 18:30	83.3	↑0.1	満潮
7/20 18:40	83.3	0
7/20 18:50	83.1	↓-0.2
7/20 19:00	82.7	↓-0.4
7/20 19:10	82.3	↓-0.4
7/20 19:20	81.7	↓-0.6
7/20 19:30	80.9	↓-0.8
7/20 19:40	80.1	↓-0.8
7/20 19:50	79.1	↓-1.0
7/20 20:00	78.0	↓-1.1
7/20 20:10	76.8	↓-1.2
7/20 20:20	75.6	↓-1.2
7/20 20:30	74.2	↓-1.4
7/20 20:40	72.8	↓-1.4
7/20 20:50	71.3	↓-1.5
7/20 21:00	69.8	↓-1.5
7/20 21:10	68.2	↓-1.6
7/20 21:20	66.6	↓-1.6
7/20 21:30	65.0	↓-1.6
7/20 21:40	63.3	↓-1.7
7/20 21:50	61.7	↓-1.6
7/20 22:00	60.2	↓-1.5
7/20 22:10	58.6	↓-1.6
7/20 22:20	57.1	↓-1.5
7/20 22:30	55.7	↓-1.4
7/20 22:40	54.3	↓-1.4
7/20 22:50	53.0	↓-1.3
7/20 23:00	51.8	↓-1.2
7/20 23:10	50.7	↓-1.1
7/20 23:20	49.7	↓-1.0
7/20 23:30	48.8	↓-0.9
7/20 23:40	48.0	↓-0.8
7/20 23:50	47.3	↓-0.7