20 (日)	21:45	05:39	-	-
	108cm	38cm	-	-
若潮 出 03:57 入 18:59 出 23:38 入 14:44

コイセボイ（北海道）2025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	80.8	↓-1.9
7/20 00:10	78.9	↓-1.9
7/20 00:20	77.0	↓-1.9
7/20 00:30	75.1	↓-1.9
7/20 00:40	73.1	↓-2.0	最大潮位差
7/20 00:50	71.1	↓-2.0	最大潮位差
7/20 01:00	69.1	↓-2.0	最大潮位差
7/20 01:10	67.2	↓-1.9
7/20 01:20	65.2	↓-2.0	最大潮位差
7/20 01:30	63.3	↓-1.9
7/20 01:40	61.4	↓-1.9
7/20 01:50	59.5	↓-1.9
7/20 02:00	57.7	↓-1.8
7/20 02:10	56.0	↓-1.7
7/20 02:20	54.3	↓-1.7
7/20 02:30	52.6	↓-1.7
7/20 02:40	51.0	↓-1.6
7/20 02:50	49.5	↓-1.5
7/20 03:00	48.1	↓-1.4
7/20 03:10	46.8	↓-1.3
7/20 03:20	45.5	↓-1.3
7/20 03:30	44.3	↓-1.2
7/20 03:40	43.3	↓-1.0
7/20 03:50	42.3	↓-1.0
7/20 04:00	41.4	↓-0.9
7/20 04:10	40.6	↓-0.8
7/20 04:20	39.9	↓-0.7
7/20 04:30	39.2	↓-0.7
7/20 04:40	38.7	↓-0.5
7/20 04:50	38.3	↓-0.4
7/20 05:00	37.9	↓-0.4
7/20 05:10	37.7	↓-0.2
7/20 05:20	37.5	↓-0.2
7/20 05:30	37.4	↓-0.1	干潮
7/20 05:40	37.4	0
7/20 05:50	37.4	0
7/20 06:00	37.6	↑0.2
7/20 06:10	37.7	↑0.1
7/20 06:20	38.0	↑0.3
7/20 06:30	38.3	↑0.3
7/20 06:40	38.7	↑0.4
7/20 06:50	39.0	↑0.3
7/20 07:00	39.5	↑0.5
7/20 07:10	40.0	↑0.5
7/20 07:20	40.5	↑0.5
7/20 07:30	41.0	↑0.5
7/20 07:40	41.6	↑0.6
7/20 07:50	42.1	↑0.5
7/20 08:00	42.7	↑0.6
7/20 08:10	43.3	↑0.6
7/20 08:20	43.9	↑0.6
7/20 08:30	44.5	↑0.6
7/20 08:40	45.0	↑0.5
7/20 08:50	45.6	↑0.6
7/20 09:00	46.2	↑0.6
7/20 09:10	46.7	↑0.5
7/20 09:20	47.3	↑0.6
7/20 09:30	47.8	↑0.5
7/20 09:40	48.3	↑0.5
7/20 09:50	48.8	↑0.5
7/20 10:00	49.2	↑0.4
7/20 10:10	49.6	↑0.4
7/20 10:20	50.0	↑0.4
7/20 10:30	50.4	↑0.4
7/20 10:40	50.8	↑0.4
7/20 10:50	51.1	↑0.3
7/20 11:00	51.5	↑0.4
7/20 11:10	51.8	↑0.3
7/20 11:20	52.1	↑0.3
7/20 11:30	52.4	↑0.3
7/20 11:40	52.6	↑0.2
7/20 11:50	52.9	↑0.3
7/20 12:00	53.2	↑0.3
7/20 12:10	53.4	↑0.2
7/20 12:20	53.7	↑0.3
7/20 12:30	54.0	↑0.3
7/20 12:40	54.3	↑0.3
7/20 12:50	54.6	↑0.3
7/20 13:00	54.9	↑0.3
7/20 13:10	55.3	↑0.4
7/20 13:20	55.7	↑0.4
7/20 13:30	56.1	↑0.4
7/20 13:40	56.5	↑0.4
7/20 13:50	57.0	↑0.5
7/20 14:00	57.5	↑0.5
7/20 14:10	58.1	↑0.6
7/20 14:20	58.7	↑0.6
7/20 14:30	59.4	↑0.7
7/20 14:40	60.1	↑0.7
7/20 14:50	60.9	↑0.8
7/20 15:00	61.7	↑0.8
7/20 15:10	62.6	↑0.9
7/20 15:20	63.5	↑0.9
7/20 15:30	64.5	↑1.0
7/20 15:40	65.5	↑1.0
7/20 15:50	66.6	↑1.1
7/20 16:00	67.8	↑1.2
7/20 16:10	69.0	↑1.2
7/20 16:20	70.3	↑1.3
7/20 16:30	71.6	↑1.3
7/20 16:40	72.9	↑1.3
7/20 16:50	74.3	↑1.4
7/20 17:00	75.8	↑1.5
7/20 17:10	77.2	↑1.4
7/20 17:20	78.7	↑1.5
7/20 17:30	80.2	↑1.5
7/20 17:40	81.8	↑1.6
7/20 17:50	83.3	↑1.5
7/20 18:00	84.9	↑1.6
7/20 18:10	86.5	↑1.6
7/20 18:20	88.0	↑1.5
7/20 18:30	89.6	↑1.6
7/20 18:40	91.1	↑1.5
7/20 18:50	92.6	↑1.5
7/20 19:00	94.1	↑1.5
7/20 19:10	95.5	↑1.4
7/20 19:20	96.9	↑1.4
7/20 19:30	98.2	↑1.3
7/20 19:40	99.5	↑1.3
7/20 19:50	100.7	↑1.2
7/20 20:00	101.8	↑1.1
7/20 20:10	102.9	↑1.1
7/20 20:20	103.8	↑0.9
7/20 20:30	104.7	↑0.9
7/20 20:40	105.5	↑0.8
7/20 20:50	106.2	↑0.7
7/20 21:00	106.8	↑0.6
7/20 21:10	107.2	↑0.4
7/20 21:20	107.6	↑0.4
7/20 21:30	107.8	↑0.2
7/20 21:40	107.9	↑0.1	満潮
7/20 21:50	107.9	0
7/20 22:00	107.8	↓-0.1
7/20 22:10	107.5	↓-0.3
7/20 22:20	107.1	↓-0.4
7/20 22:30	106.6	↓-0.5
7/20 22:40	106.0	↓-0.6
7/20 22:50	105.2	↓-0.8
7/20 23:00	104.3	↓-0.9
7/20 23:10	103.3	↓-1.0
7/20 23:20	102.2	↓-1.1
7/20 23:30	101.0	↓-1.2
7/20 23:40	99.6	↓-1.4
7/20 23:50	98.1	↓-1.5