21 (土)	20:40	04:42	-	-
	101cm	38cm	-	-
小潮 出 05:07 入 17:22 出 23:20 入 13:38

コイセボイ（北海道）2030年09月21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
9/21 00:00	68.1	↓-2.0	最大潮位差
9/21 00:10	66.1	↓-2.0	最大潮位差
9/21 00:20	64.2	↓-1.9
9/21 00:30	62.3	↓-1.9
9/21 00:40	60.4	↓-1.9
9/21 00:50	58.6	↓-1.8
9/21 01:00	56.8	↓-1.8
9/21 01:10	55.1	↓-1.7
9/21 01:20	53.4	↓-1.7
9/21 01:30	51.9	↓-1.5
9/21 01:40	50.4	↓-1.5
9/21 01:50	48.9	↓-1.5
9/21 02:00	47.6	↓-1.3
9/21 02:10	46.3	↓-1.3
9/21 02:20	45.1	↓-1.2
9/21 02:30	44.0	↓-1.1
9/21 02:40	43.0	↓-1.0
9/21 02:50	42.0	↓-1.0
9/21 03:00	41.2	↓-0.8
9/21 03:10	40.4	↓-0.8
9/21 03:20	39.7	↓-0.7
9/21 03:30	39.2	↓-0.5
9/21 03:40	38.7	↓-0.5
9/21 03:50	38.2	↓-0.5
9/21 04:00	37.9	↓-0.3
9/21 04:10	37.6	↓-0.3
9/21 04:20	37.5	↓-0.1
9/21 04:30	37.3	↓-0.2
9/21 04:40	37.3	0	干潮
9/21 04:50	37.3	0
9/21 05:00	37.4	↑0.1
9/21 05:10	37.6	↑0.2
9/21 05:20	37.8	↑0.2
9/21 05:30	38.0	↑0.2
9/21 05:40	38.3	↑0.3
9/21 05:50	38.6	↑0.3
9/21 06:00	39.0	↑0.4
9/21 06:10	39.4	↑0.4
9/21 06:20	39.8	↑0.4
9/21 06:30	40.3	↑0.5
9/21 06:40	40.8	↑0.5
9/21 06:50	41.3	↑0.5
9/21 07:00	41.8	↑0.5
9/21 07:10	42.3	↑0.5
9/21 07:20	42.8	↑0.5
9/21 07:30	43.4	↑0.6
9/21 07:40	43.9	↑0.5
9/21 07:50	44.4	↑0.5
9/21 08:00	44.9	↑0.5
9/21 08:10	45.4	↑0.5
9/21 08:20	45.9	↑0.5
9/21 08:30	46.4	↑0.5
9/21 08:40	46.9	↑0.5
9/21 08:50	47.4	↑0.5
9/21 09:00	47.8	↑0.4
9/21 09:10	48.3	↑0.5
9/21 09:20	48.7	↑0.4
9/21 09:30	49.1	↑0.4
9/21 09:40	49.5	↑0.4
9/21 09:50	49.9	↑0.4
9/21 10:00	50.3	↑0.4
9/21 10:10	50.7	↑0.4
9/21 10:20	51.1	↑0.4
9/21 10:30	51.4	↑0.3
9/21 10:40	51.8	↑0.4
9/21 10:50	52.2	↑0.4
9/21 11:00	52.5	↑0.3
9/21 11:10	52.9	↑0.4
9/21 11:20	53.3	↑0.4
9/21 11:30	53.7	↑0.4
9/21 11:40	54.1	↑0.4
9/21 11:50	54.5	↑0.4
9/21 12:00	55.0	↑0.5
9/21 12:10	55.4	↑0.4
9/21 12:20	55.9	↑0.5
9/21 12:30	56.4	↑0.5
9/21 12:40	56.9	↑0.5
9/21 12:50	57.5	↑0.6
9/21 13:00	58.1	↑0.6
9/21 13:10	58.7	↑0.6
9/21 13:20	59.4	↑0.7
9/21 13:30	60.1	↑0.7
9/21 13:40	60.9	↑0.8
9/21 13:50	61.6	↑0.7
9/21 14:00	62.5	↑0.9
9/21 14:10	63.3	↑0.8
9/21 14:20	64.2	↑0.9
9/21 14:30	65.2	↑1.0
9/21 14:40	66.2	↑1.0
9/21 14:50	67.2	↑1.0
9/21 15:00	68.2	↑1.0
9/21 15:10	69.3	↑1.1
9/21 15:20	70.5	↑1.2
9/21 15:30	71.6	↑1.1
9/21 15:40	72.8	↑1.2
9/21 15:50	74.0	↑1.2
9/21 16:00	75.2	↑1.2
9/21 16:10	76.5	↑1.3
9/21 16:20	77.7	↑1.2
9/21 16:30	79.0	↑1.3
9/21 16:40	80.3	↑1.3
9/21 16:50	81.6	↑1.3
9/21 17:00	82.9	↑1.3
9/21 17:10	84.1	↑1.2
9/21 17:20	85.4	↑1.3
9/21 17:30	86.6	↑1.2
9/21 17:40	87.9	↑1.3
9/21 17:50	89.1	↑1.2
9/21 18:00	90.2	↑1.1
9/21 18:10	91.4	↑1.2
9/21 18:20	92.4	↑1.0
9/21 18:30	93.5	↑1.1
9/21 18:40	94.5	↑1.0
9/21 18:50	95.4	↑0.9
9/21 19:00	96.3	↑0.9
9/21 19:10	97.1	↑0.8
9/21 19:20	97.8	↑0.7
9/21 19:30	98.5	↑0.7
9/21 19:40	99.0	↑0.5
9/21 19:50	99.5	↑0.5
9/21 20:00	99.9	↑0.4
9/21 20:10	100.3	↑0.4
9/21 20:20	100.5	↑0.2
9/21 20:30	100.6	↑0.1	満潮
9/21 20:40	100.7	↑0.1	満潮
9/21 20:50	100.6	↓-0.1
9/21 21:00	100.5	↓-0.1
9/21 21:10	100.2	↓-0.3
9/21 21:20	99.9	↓-0.3
9/21 21:30	99.4	↓-0.5
9/21 21:40	98.9	↓-0.5
9/21 21:50	98.2	↓-0.7
9/21 22:00	97.5	↓-0.7
9/21 22:10	96.7	↓-0.8
9/21 22:20	95.7	↓-1.0
9/21 22:30	94.7	↓-1.0
9/21 22:40	93.6	↓-1.1
9/21 22:50	92.5	↓-1.1
9/21 23:00	91.2	↓-1.3
9/21 23:10	89.9	↓-1.3
9/21 23:20	88.5	↓-1.4
9/21 23:30	87.0	↓-1.5
9/21 23:40	85.5	↓-1.5
9/21 23:50	83.9	↓-1.6