18 (火)	07:57	17:12	-	-
	90cm	29cm	-	-
小潮 出 04:33 入 18:10 出 01:32 入 11:37

コイセボイ（北海道）2028年04月18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
4/18 00:00	48.8	↑0.5
4/18 00:10	49.3	↑0.5
4/18 00:20	49.9	↑0.6
4/18 00:30	50.5	↑0.6
4/18 00:40	51.1	↑0.6
4/18 00:50	51.7	↑0.6
4/18 01:00	52.4	↑0.7
4/18 01:10	53.1	↑0.7
4/18 01:20	53.9	↑0.8
4/18 01:30	54.7	↑0.8
4/18 01:40	55.5	↑0.8
4/18 01:50	56.4	↑0.9
4/18 02:00	57.3	↑0.9
4/18 02:10	58.2	↑0.9
4/18 02:20	59.2	↑1.0
4/18 02:30	60.2	↑1.0
4/18 02:40	61.2	↑1.0
4/18 02:50	62.3	↑1.1
4/18 03:00	63.4	↑1.1
4/18 03:10	64.5	↑1.1
4/18 03:20	65.7	↑1.2
4/18 03:30	66.8	↑1.1
4/18 03:40	68.0	↑1.2
4/18 03:50	69.2	↑1.2
4/18 04:00	70.4	↑1.2
4/18 04:10	71.6	↑1.2
4/18 04:20	72.8	↑1.2
4/18 04:30	74.0	↑1.2
4/18 04:40	75.2	↑1.2
4/18 04:50	76.4	↑1.2
4/18 05:00	77.6	↑1.2
4/18 05:10	78.7	↑1.1
4/18 05:20	79.8	↑1.1
4/18 05:30	80.9	↑1.1
4/18 05:40	81.9	↑1.0
4/18 05:50	82.9	↑1.0
4/18 06:00	83.8	↑0.9
4/18 06:10	84.7	↑0.9
4/18 06:20	85.5	↑0.8
4/18 06:30	86.2	↑0.7
4/18 06:40	86.9	↑0.7
4/18 06:50	87.5	↑0.6
4/18 07:00	88.1	↑0.6
4/18 07:10	88.5	↑0.4
4/18 07:20	88.9	↑0.4
4/18 07:30	89.2	↑0.3
4/18 07:40	89.3	↑0.1
4/18 07:50	89.4	↑0.1	満潮
4/18 08:00	89.5	↑0.1
4/18 08:10	89.4	↓-0.1
4/18 08:20	89.2	↓-0.2
4/18 08:30	88.9	↓-0.3
4/18 08:40	88.5	↓-0.4
4/18 08:50	88.1	↓-0.4
4/18 09:00	87.5	↓-0.6
4/18 09:10	86.8	↓-0.7
4/18 09:20	86.1	↓-0.7
4/18 09:30	85.2	↓-0.9
4/18 09:40	84.3	↓-0.9
4/18 09:50	83.3	↓-1.0
4/18 10:00	82.2	↓-1.1
4/18 10:10	81.0	↓-1.2
4/18 10:20	79.7	↓-1.3
4/18 10:30	78.4	↓-1.3
4/18 10:40	77.0	↓-1.4
4/18 10:50	75.5	↓-1.5
4/18 11:00	74.0	↓-1.5
4/18 11:10	72.4	↓-1.6
4/18 11:20	70.8	↓-1.6
4/18 11:30	69.2	↓-1.6
4/18 11:40	67.5	↓-1.7
4/18 11:50	65.7	↓-1.8	最大潮位差
4/18 12:00	64.0	↓-1.7
4/18 12:10	62.2	↓-1.8	最大潮位差
4/18 12:20	60.5	↓-1.7
4/18 12:30	58.7	↓-1.8	最大潮位差
4/18 12:40	56.9	↓-1.8	最大潮位差
4/18 12:50	55.2	↓-1.7
4/18 13:00	53.4	↓-1.8	最大潮位差
4/18 13:10	51.7	↓-1.7
4/18 13:20	50.0	↓-1.7
4/18 13:30	48.4	↓-1.6
4/18 13:40	46.7	↓-1.7
4/18 13:50	45.2	↓-1.5
4/18 14:00	43.7	↓-1.5
4/18 14:10	42.2	↓-1.5
4/18 14:20	40.8	↓-1.4
4/18 14:30	39.4	↓-1.4
4/18 14:40	38.2	↓-1.2
4/18 14:50	37.0	↓-1.2
4/18 15:00	35.8	↓-1.2
4/18 15:10	34.8	↓-1.0
4/18 15:20	33.8	↓-1.0
4/18 15:30	32.9	↓-0.9
4/18 15:40	32.1	↓-0.8
4/18 15:50	31.4	↓-0.7
4/18 16:00	30.8	↓-0.6
4/18 16:10	30.2	↓-0.6
4/18 16:20	29.7	↓-0.5
4/18 16:30	29.4	↓-0.3
4/18 16:40	29.1	↓-0.3
4/18 16:50	28.9	↓-0.2
4/18 17:00	28.7	↓-0.2
4/18 17:10	28.7	0	干潮
4/18 17:20	28.7	0
4/18 17:30	28.8	↑0.1
4/18 17:40	29.0	↑0.2
4/18 17:50	29.2	↑0.2
4/18 18:00	29.5	↑0.3
4/18 18:10	29.9	↑0.4
4/18 18:20	30.3	↑0.4
4/18 18:30	30.8	↑0.5
4/18 18:40	31.4	↑0.6
4/18 18:50	31.9	↑0.5
4/18 19:00	32.6	↑0.7
4/18 19:10	33.2	↑0.6
4/18 19:20	33.9	↑0.7
4/18 19:30	34.6	↑0.7
4/18 19:40	35.3	↑0.7
4/18 19:50	36.1	↑0.8
4/18 20:00	36.9	↑0.8
4/18 20:10	37.6	↑0.7
4/18 20:20	38.4	↑0.8
4/18 20:30	39.2	↑0.8
4/18 20:40	40.0	↑0.8
4/18 20:50	40.7	↑0.7
4/18 21:00	41.5	↑0.8
4/18 21:10	42.2	↑0.7
4/18 21:20	43.0	↑0.8
4/18 21:30	43.7	↑0.7
4/18 21:40	44.4	↑0.7
4/18 21:50	45.0	↑0.6
4/18 22:00	45.7	↑0.7
4/18 22:10	46.3	↑0.6
4/18 22:20	46.9	↑0.6
4/18 22:30	47.4	↑0.5
4/18 22:40	47.9	↑0.5
4/18 22:50	48.4	↑0.5
4/18 23:00	48.9	↑0.5
4/18 23:10	49.3	↑0.4
4/18 23:20	49.7	↑0.4
4/18 23:30	50.1	↑0.4
4/18 23:40	50.5	↑0.4
4/18 23:50	50.8	↑0.3