20 (日)	20:02	04:49	-	-
	108cm	33cm	-	-
長潮 出 05:06 入 17:24 出 14:18 入 22:42

コイセボイ（北海道）2026年09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
9/20 00:00	64.6	↓-2.1
9/20 00:10	62.4	↓-2.2	最大潮位差
9/20 00:20	60.3	↓-2.1
9/20 00:30	58.3	↓-2.0
9/20 00:40	56.3	↓-2.0
9/20 00:50	54.4	↓-1.9
9/20 01:00	52.5	↓-1.9
9/20 01:10	50.8	↓-1.7
9/20 01:20	49.1	↓-1.7
9/20 01:30	47.4	↓-1.7
9/20 01:40	45.9	↓-1.5
9/20 01:50	44.4	↓-1.5
9/20 02:00	43.0	↓-1.4
9/20 02:10	41.7	↓-1.3
9/20 02:20	40.5	↓-1.2
9/20 02:30	39.4	↓-1.1
9/20 02:40	38.4	↓-1.0
9/20 02:50	37.5	↓-0.9
9/20 03:00	36.6	↓-0.9
9/20 03:10	35.9	↓-0.7
9/20 03:20	35.2	↓-0.7
9/20 03:30	34.6	↓-0.6
9/20 03:40	34.1	↓-0.5
9/20 03:50	33.6	↓-0.5
9/20 04:00	33.3	↓-0.3
9/20 04:10	33.0	↓-0.3
9/20 04:20	32.8	↓-0.2
9/20 04:30	32.7	↓-0.1
9/20 04:40	32.6	↓-0.1	干潮
9/20 04:50	32.6	0
9/20 05:00	32.6	0
9/20 05:10	32.7	↑0.1
9/20 05:20	32.8	↑0.1
9/20 05:30	33.0	↑0.2
9/20 05:40	33.2	↑0.2
9/20 05:50	33.5	↑0.3
9/20 06:00	33.8	↑0.3
9/20 06:10	34.1	↑0.3
9/20 06:20	34.5	↑0.4
9/20 06:30	34.8	↑0.3
9/20 06:40	35.2	↑0.4
9/20 06:50	35.6	↑0.4
9/20 07:00	36.1	↑0.5
9/20 07:10	36.5	↑0.4
9/20 07:20	36.9	↑0.4
9/20 07:30	37.4	↑0.5
9/20 07:40	37.9	↑0.5
9/20 07:50	38.3	↑0.4
9/20 08:00	38.8	↑0.5
9/20 08:10	39.3	↑0.5
9/20 08:20	39.8	↑0.5
9/20 08:30	40.2	↑0.4
9/20 08:40	40.7	↑0.5
9/20 08:50	41.2	↑0.5
9/20 09:00	41.7	↑0.5
9/20 09:10	42.2	↑0.5
9/20 09:20	42.7	↑0.5
9/20 09:30	43.2	↑0.5
9/20 09:40	43.7	↑0.5
9/20 09:50	44.3	↑0.6
9/20 10:00	44.8	↑0.5
9/20 10:10	45.4	↑0.6
9/20 10:20	46.0	↑0.6
9/20 10:30	46.6	↑0.6
9/20 10:40	47.2	↑0.6
9/20 10:50	47.8	↑0.6
9/20 11:00	48.5	↑0.7
9/20 11:10	49.2	↑0.7
9/20 11:20	49.9	↑0.7
9/20 11:30	50.6	↑0.7
9/20 11:40	51.4	↑0.8
9/20 11:50	52.2	↑0.8
9/20 12:00	53.1	↑0.9
9/20 12:10	54.0	↑0.9
9/20 12:20	54.9	↑0.9
9/20 12:30	55.8	↑0.9
9/20 12:40	56.8	↑1.0
9/20 12:50	57.9	↑1.1
9/20 13:00	59.0	↑1.1
9/20 13:10	60.1	↑1.1
9/20 13:20	61.3	↑1.2
9/20 13:30	62.5	↑1.2
9/20 13:40	63.7	↑1.2
9/20 13:50	65.0	↑1.3
9/20 14:00	66.3	↑1.3
9/20 14:10	67.7	↑1.4
9/20 14:20	69.1	↑1.4
9/20 14:30	70.5	↑1.4
9/20 14:40	72.0	↑1.5
9/20 14:50	73.4	↑1.4
9/20 15:00	74.9	↑1.5
9/20 15:10	76.4	↑1.5
9/20 15:20	78.0	↑1.6
9/20 15:30	79.5	↑1.5
9/20 15:40	81.1	↑1.6
9/20 15:50	82.6	↑1.5
9/20 16:00	84.1	↑1.5
9/20 16:10	85.7	↑1.6
9/20 16:20	87.2	↑1.5
9/20 16:30	88.7	↑1.5
9/20 16:40	90.2	↑1.5
9/20 16:50	91.6	↑1.4
9/20 17:00	93.1	↑1.5
9/20 17:10	94.4	↑1.3
9/20 17:20	95.8	↑1.4
9/20 17:30	97.1	↑1.3
9/20 17:40	98.3	↑1.2
9/20 17:50	99.5	↑1.2
9/20 18:00	100.6	↑1.1
9/20 18:10	101.7	↑1.1
9/20 18:20	102.6	↑0.9
9/20 18:30	103.5	↑0.9
9/20 18:40	104.4	↑0.9
9/20 18:50	105.1	↑0.7
9/20 19:00	105.7	↑0.6
9/20 19:10	106.3	↑0.6
9/20 19:20	106.8	↑0.5
9/20 19:30	107.1	↑0.3
9/20 19:40	107.4	↑0.3
9/20 19:50	107.6	↑0.2
9/20 20:00	107.6	0	満潮
9/20 20:10	107.6	0
9/20 20:20	107.5	↓-0.1
9/20 20:30	107.2	↓-0.3
9/20 20:40	106.9	↓-0.3
9/20 20:50	106.4	↓-0.5
9/20 21:00	105.9	↓-0.5
9/20 21:10	105.2	↓-0.7
9/20 21:20	104.4	↓-0.8
9/20 21:30	103.6	↓-0.8
9/20 21:40	102.6	↓-1.0
9/20 21:50	101.6	↓-1.0
9/20 22:00	100.4	↓-1.2
9/20 22:10	99.2	↓-1.2
9/20 22:20	97.9	↓-1.3
9/20 22:30	96.5	↓-1.4
9/20 22:40	95.0	↓-1.5
9/20 22:50	93.4	↓-1.6
9/20 23:00	91.8	↓-1.6
9/20 23:10	90.1	↓-1.7
9/20 23:20	88.4	↓-1.7
9/20 23:30	86.6	↓-1.8
9/20 23:40	84.8	↓-1.8
9/20 23:50	82.9	↓-1.9