20 (火)	21:21	05:12	-	-
	94cm	36cm	-	-
長潮 出 05:42 入 16:31 出 13:48 入 23:45

コイセボイ（北海道）2026年10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
10/20 00:00	71.2	↓-1.9	最大潮位差
10/20 00:10	69.3	↓-1.9	最大潮位差
10/20 00:20	67.5	↓-1.8
10/20 00:30	65.6	↓-1.9	最大潮位差
10/20 00:40	63.7	↓-1.9	最大潮位差
10/20 00:50	61.9	↓-1.8
10/20 01:00	60.1	↓-1.8
10/20 01:10	58.3	↓-1.8
10/20 01:20	56.6	↓-1.7
10/20 01:30	54.9	↓-1.7
10/20 01:40	53.2	↓-1.7
10/20 01:50	51.6	↓-1.6
10/20 02:00	50.0	↓-1.6
10/20 02:10	48.6	↓-1.4
10/20 02:20	47.1	↓-1.5
10/20 02:30	45.8	↓-1.3
10/20 02:40	44.5	↓-1.3
10/20 02:50	43.3	↓-1.2
10/20 03:00	42.2	↓-1.1
10/20 03:10	41.1	↓-1.1
10/20 03:20	40.1	↓-1.0
10/20 03:30	39.3	↓-0.8
10/20 03:40	38.5	↓-0.8
10/20 03:50	37.7	↓-0.8
10/20 04:00	37.1	↓-0.6
10/20 04:10	36.6	↓-0.5
10/20 04:20	36.1	↓-0.5
10/20 04:30	35.7	↓-0.4
10/20 04:40	35.4	↓-0.3
10/20 04:50	35.2	↓-0.2
10/20 05:00	35.1	↓-0.1
10/20 05:10	35.1	0	干潮
10/20 05:20	35.1	0
10/20 05:30	35.2	↑0.1
10/20 05:40	35.4	↑0.2
10/20 05:50	35.6	↑0.2
10/20 06:00	35.9	↑0.3
10/20 06:10	36.3	↑0.4
10/20 06:20	36.7	↑0.4
10/20 06:30	37.1	↑0.4
10/20 06:40	37.7	↑0.6
10/20 06:50	38.2	↑0.5
10/20 07:00	38.8	↑0.6
10/20 07:10	39.4	↑0.6
10/20 07:20	40.1	↑0.7
10/20 07:30	40.8	↑0.7
10/20 07:40	41.5	↑0.7
10/20 07:50	42.3	↑0.8
10/20 08:00	43.0	↑0.7
10/20 08:10	43.8	↑0.8
10/20 08:20	44.6	↑0.8
10/20 08:30	45.3	↑0.7
10/20 08:40	46.1	↑0.8
10/20 08:50	46.9	↑0.8
10/20 09:00	47.7	↑0.8
10/20 09:10	48.4	↑0.7
10/20 09:20	49.2	↑0.8
10/20 09:30	49.9	↑0.7
10/20 09:40	50.6	↑0.7
10/20 09:50	51.4	↑0.8
10/20 10:00	52.0	↑0.6
10/20 10:10	52.7	↑0.7
10/20 10:20	53.4	↑0.7
10/20 10:30	54.0	↑0.6
10/20 10:40	54.6	↑0.6
10/20 10:50	55.2	↑0.6
10/20 11:00	55.8	↑0.6
10/20 11:10	56.3	↑0.5
10/20 11:20	56.9	↑0.6
10/20 11:30	57.4	↑0.5
10/20 11:40	57.9	↑0.5
10/20 11:50	58.4	↑0.5
10/20 12:00	58.8	↑0.4
10/20 12:10	59.3	↑0.5
10/20 12:20	59.7	↑0.4
10/20 12:30	60.2	↑0.5
10/20 12:40	60.6	↑0.4
10/20 12:50	61.0	↑0.4
10/20 13:00	61.5	↑0.5
10/20 13:10	61.9	↑0.4
10/20 13:20	62.3	↑0.4
10/20 13:30	62.8	↑0.5
10/20 13:40	63.2	↑0.4
10/20 13:50	63.7	↑0.5
10/20 14:00	64.1	↑0.4
10/20 14:10	64.6	↑0.5
10/20 14:20	65.1	↑0.5
10/20 14:30	65.6	↑0.5
10/20 14:40	66.2	↑0.6
10/20 14:50	66.7	↑0.5
10/20 15:00	67.3	↑0.6
10/20 15:10	67.9	↑0.6
10/20 15:20	68.5	↑0.6
10/20 15:30	69.2	↑0.7
10/20 15:40	69.9	↑0.7
10/20 15:50	70.6	↑0.7
10/20 16:00	71.3	↑0.7
10/20 16:10	72.1	↑0.8
10/20 16:20	72.9	↑0.8
10/20 16:30	73.7	↑0.8
10/20 16:40	74.5	↑0.8
10/20 16:50	75.3	↑0.8
10/20 17:00	76.2	↑0.9
10/20 17:10	77.1	↑0.9
10/20 17:20	78.0	↑0.9
10/20 17:30	78.9	↑0.9
10/20 17:40	79.8	↑0.9
10/20 17:50	80.7	↑0.9
10/20 18:00	81.6	↑0.9
10/20 18:10	82.5	↑0.9
10/20 18:20	83.4	↑0.9
10/20 18:30	84.3	↑0.9
10/20 18:40	85.2	↑0.9
10/20 18:50	86.1	↑0.9
10/20 19:00	86.9	↑0.8
10/20 19:10	87.7	↑0.8
10/20 19:20	88.5	↑0.8
10/20 19:30	89.2	↑0.7
10/20 19:40	89.9	↑0.7
10/20 19:50	90.5	↑0.6
10/20 20:00	91.1	↑0.6
10/20 20:10	91.6	↑0.5
10/20 20:20	92.1	↑0.5
10/20 20:30	92.5	↑0.4
10/20 20:40	92.9	↑0.4
10/20 20:50	93.1	↑0.2
10/20 21:00	93.3	↑0.2
10/20 21:10	93.5	↑0.2
10/20 21:20	93.5	0	満潮
10/20 21:30	93.5	0
10/20 21:40	93.3	↓-0.2
10/20 21:50	93.1	↓-0.2
10/20 22:00	92.8	↓-0.3
10/20 22:10	92.5	↓-0.3
10/20 22:20	92.0	↓-0.5
10/20 22:30	91.4	↓-0.6
10/20 22:40	90.8	↓-0.6
10/20 22:50	90.0	↓-0.8
10/20 23:00	89.2	↓-0.8
10/20 23:10	88.3	↓-0.9
10/20 23:20	87.3	↓-1.0
10/20 23:30	86.3	↓-1.0
10/20 23:40	85.1	↓-1.2
10/20 23:50	83.9	↓-1.2