20 (火)	07:06	15:42	23:27	-
	91cm	30cm	55cm	-
小潮 出 03:50 入 18:47 出 00:15 入 10:11

コイセボイ（北海道）2025年05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
5/20 00:00	52.3	↑0.4
5/20 00:10	52.8	↑0.5
5/20 00:20	53.3	↑0.5
5/20 00:30	53.9	↑0.6
5/20 00:40	54.5	↑0.6
5/20 00:50	55.2	↑0.7
5/20 01:00	55.9	↑0.7
5/20 01:10	56.6	↑0.7
5/20 01:20	57.4	↑0.8
5/20 01:30	58.3	↑0.9
5/20 01:40	59.2	↑0.9
5/20 01:50	60.2	↑1.0
5/20 02:00	61.2	↑1.0
5/20 02:10	62.3	↑1.1
5/20 02:20	63.3	↑1.0
5/20 02:30	64.5	↑1.2
5/20 02:40	65.7	↑1.2
5/20 02:50	66.9	↑1.2
5/20 03:00	68.1	↑1.2
5/20 03:10	69.3	↑1.2
5/20 03:20	70.6	↑1.3
5/20 03:30	71.9	↑1.3
5/20 03:40	73.2	↑1.3
5/20 03:50	74.4	↑1.2
5/20 04:00	75.7	↑1.3
5/20 04:10	77.0	↑1.3
5/20 04:20	78.2	↑1.2
5/20 04:30	79.4	↑1.2
5/20 04:40	80.6	↑1.2
5/20 04:50	81.8	↑1.2
5/20 05:00	82.9	↑1.1
5/20 05:10	83.9	↑1.0
5/20 05:20	84.9	↑1.0
5/20 05:30	85.8	↑0.9
5/20 05:40	86.7	↑0.9
5/20 05:50	87.4	↑0.7
5/20 06:00	88.1	↑0.7
5/20 06:10	88.7	↑0.6
5/20 06:20	89.2	↑0.5
5/20 06:30	89.7	↑0.5
5/20 06:40	90.0	↑0.3
5/20 06:50	90.2	↑0.2
5/20 07:00	90.3	↑0.1	満潮
5/20 07:10	90.3	0
5/20 07:20	90.2	↓-0.1
5/20 07:30	90.0	↓-0.2
5/20 07:40	89.7	↓-0.3
5/20 07:50	89.2	↓-0.5
5/20 08:00	88.7	↓-0.5
5/20 08:10	88.0	↓-0.7
5/20 08:20	87.2	↓-0.8
5/20 08:30	86.4	↓-0.8
5/20 08:40	85.4	↓-1.0
5/20 08:50	84.3	↓-1.1
5/20 09:00	83.1	↓-1.2
5/20 09:10	81.9	↓-1.2
5/20 09:20	80.5	↓-1.4
5/20 09:30	79.1	↓-1.4
5/20 09:40	77.5	↓-1.6
5/20 09:50	76.0	↓-1.5
5/20 10:00	74.3	↓-1.7
5/20 10:10	72.6	↓-1.7
5/20 10:20	70.8	↓-1.8
5/20 10:30	69.0	↓-1.8
5/20 10:40	67.2	↓-1.8
5/20 10:50	65.3	↓-1.9	最大潮位差
5/20 11:00	63.4	↓-1.9	最大潮位差
5/20 11:10	61.5	↓-1.9	最大潮位差
5/20 11:20	59.6	↓-1.9	最大潮位差
5/20 11:30	57.7	↓-1.9	最大潮位差
5/20 11:40	55.8	↓-1.9	最大潮位差
5/20 11:50	53.9	↓-1.9	最大潮位差
5/20 12:00	52.1	↓-1.8
5/20 12:10	50.3	↓-1.8
5/20 12:20	48.5	↓-1.8
5/20 12:30	46.8	↓-1.7
5/20 12:40	45.1	↓-1.7
5/20 12:50	43.5	↓-1.6
5/20 13:00	41.9	↓-1.6
5/20 13:10	40.5	↓-1.4
5/20 13:20	39.1	↓-1.4
5/20 13:30	37.8	↓-1.3
5/20 13:40	36.5	↓-1.3
5/20 13:50	35.4	↓-1.1
5/20 14:00	34.3	↓-1.1
5/20 14:10	33.4	↓-0.9
5/20 14:20	32.5	↓-0.9
5/20 14:30	31.8	↓-0.7
5/20 14:40	31.1	↓-0.7
5/20 14:50	30.6	↓-0.5
5/20 15:00	30.1	↓-0.5
5/20 15:10	29.8	↓-0.3
5/20 15:20	29.6	↓-0.2
5/20 15:30	29.4	↓-0.2
5/20 15:40	29.4	0	干潮
5/20 15:50	29.4	0
5/20 16:00	29.5	↑0.1
5/20 16:10	29.7	↑0.2
5/20 16:20	30.0	↑0.3
5/20 16:30	30.4	↑0.4
5/20 16:40	30.9	↑0.5
5/20 16:50	31.4	↑0.5
5/20 17:00	32.0	↑0.6
5/20 17:10	32.7	↑0.7
5/20 17:20	33.4	↑0.7
5/20 17:30	34.1	↑0.7
5/20 17:40	34.9	↑0.8
5/20 17:50	35.7	↑0.8
5/20 18:00	36.6	↑0.9
5/20 18:10	37.5	↑0.9
5/20 18:20	38.4	↑0.9
5/20 18:30	39.3	↑0.9
5/20 18:40	40.2	↑0.9
5/20 18:50	41.1	↑0.9
5/20 19:00	42.1	↑1.0
5/20 19:10	43.0	↑0.9
5/20 19:20	43.9	↑0.9
5/20 19:30	44.7	↑0.8
5/20 19:40	45.6	↑0.9
5/20 19:50	46.4	↑0.8
5/20 20:00	47.2	↑0.8
5/20 20:10	48.0	↑0.8
5/20 20:20	48.7	↑0.7
5/20 20:30	49.4	↑0.7
5/20 20:40	50.0	↑0.6
5/20 20:50	50.6	↑0.6
5/20 21:00	51.2	↑0.6
5/20 21:10	51.7	↑0.5
5/20 21:20	52.1	↑0.4
5/20 21:30	52.5	↑0.4
5/20 21:40	52.9	↑0.4
5/20 21:50	53.2	↑0.3
5/20 22:00	53.5	↑0.3
5/20 22:10	53.8	↑0.3
5/20 22:20	53.9	↑0.1
5/20 22:30	54.1	↑0.2
5/20 22:40	54.2	↑0.1
5/20 22:50	54.3	↑0.1
5/20 23:00	54.4	↑0.1
5/20 23:10	54.4	0
5/20 23:20	54.5	↑0.1	満潮
5/20 23:30	54.5	0
5/20 23:40	54.4	↓-0.1
5/20 23:50	54.4	0