21 (火)	07:47	16:39	-	-
	104cm	38cm	-	-
長潮 出 06:13 入 16:59 出 10:38 入 01:26

コイセボイ（北海道）2040年02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
2/21 00:00	55.2	0
2/21 00:10	55.4	↑0.2
2/21 00:20	55.5	↑0.1
2/21 00:30	55.8	↑0.3
2/21 00:40	56.1	↑0.3
2/21 00:50	56.5	↑0.4
2/21 01:00	57.0	↑0.5
2/21 01:10	57.6	↑0.6
2/21 01:20	58.3	↑0.7
2/21 01:30	59.0	↑0.7
2/21 01:40	59.8	↑0.8
2/21 01:50	60.8	↑1.0
2/21 02:00	61.7	↑0.9
2/21 02:10	62.8	↑1.1
2/21 02:20	64.0	↑1.2
2/21 02:30	65.2	↑1.2
2/21 02:40	66.5	↑1.3
2/21 02:50	67.8	↑1.3
2/21 03:00	69.3	↑1.5
2/21 03:10	70.7	↑1.4
2/21 03:20	72.3	↑1.6
2/21 03:30	73.8	↑1.5
2/21 03:40	75.4	↑1.6
2/21 03:50	77.1	↑1.7
2/21 04:00	78.7	↑1.6
2/21 04:10	80.4	↑1.7
2/21 04:20	82.0	↑1.6
2/21 04:30	83.7	↑1.7
2/21 04:40	85.3	↑1.6
2/21 04:50	86.9	↑1.6
2/21 05:00	88.5	↑1.6
2/21 05:10	90.1	↑1.6
2/21 05:20	91.6	↑1.5
2/21 05:30	93.0	↑1.4
2/21 05:40	94.4	↑1.4
2/21 05:50	95.7	↑1.3
2/21 06:00	97.0	↑1.3
2/21 06:10	98.1	↑1.1
2/21 06:20	99.2	↑1.1
2/21 06:30	100.2	↑1.0
2/21 06:40	101.0	↑0.8
2/21 06:50	101.8	↑0.8
2/21 07:00	102.4	↑0.6
2/21 07:10	102.9	↑0.5
2/21 07:20	103.3	↑0.4
2/21 07:30	103.6	↑0.3
2/21 07:40	103.7	↑0.1	満潮
2/21 07:50	103.7	0
2/21 08:00	103.6	↓-0.1
2/21 08:10	103.3	↓-0.3
2/21 08:20	103.0	↓-0.3
2/21 08:30	102.4	↓-0.6
2/21 08:40	101.8	↓-0.6
2/21 08:50	101.0	↓-0.8
2/21 09:00	100.2	↓-0.8
2/21 09:10	99.2	↓-1.0
2/21 09:20	98.0	↓-1.2
2/21 09:30	96.8	↓-1.2
2/21 09:40	95.5	↓-1.3
2/21 09:50	94.1	↓-1.4
2/21 10:00	92.5	↓-1.6
2/21 10:10	90.9	↓-1.6
2/21 10:20	89.2	↓-1.7
2/21 10:30	87.5	↓-1.7
2/21 10:40	85.7	↓-1.8
2/21 10:50	83.8	↓-1.9
2/21 11:00	81.9	↓-1.9
2/21 11:10	79.9	↓-2.0
2/21 11:20	77.9	↓-2.0
2/21 11:30	75.9	↓-2.0
2/21 11:40	73.9	↓-2.0
2/21 11:50	71.9	↓-2.0
2/21 12:00	69.8	↓-2.1	最大潮位差
2/21 12:10	67.8	↓-2.0
2/21 12:20	65.8	↓-2.0
2/21 12:30	63.8	↓-2.0
2/21 12:40	61.9	↓-1.9
2/21 12:50	60.0	↓-1.9
2/21 13:00	58.2	↓-1.8
2/21 13:10	56.4	↓-1.8
2/21 13:20	54.7	↓-1.7
2/21 13:30	53.0	↓-1.7
2/21 13:40	51.4	↓-1.6
2/21 13:50	49.9	↓-1.5
2/21 14:00	48.5	↓-1.4
2/21 14:10	47.1	↓-1.4
2/21 14:20	45.9	↓-1.2
2/21 14:30	44.7	↓-1.2
2/21 14:40	43.6	↓-1.1
2/21 14:50	42.6	↓-1.0
2/21 15:00	41.7	↓-0.9
2/21 15:10	40.9	↓-0.8
2/21 15:20	40.2	↓-0.7
2/21 15:30	39.6	↓-0.6
2/21 15:40	39.1	↓-0.5
2/21 15:50	38.7	↓-0.4
2/21 16:00	38.3	↓-0.4
2/21 16:10	38.1	↓-0.2
2/21 16:20	37.9	↓-0.2
2/21 16:30	37.8	↓-0.1	干潮
2/21 16:40	37.8	0
2/21 16:50	37.8	0
2/21 17:00	37.9	↑0.1
2/21 17:10	38.1	↑0.2
2/21 17:20	38.4	↑0.3
2/21 17:30	38.7	↑0.3
2/21 17:40	39.0	↑0.3
2/21 17:50	39.4	↑0.4
2/21 18:00	39.8	↑0.4
2/21 18:10	40.2	↑0.4
2/21 18:20	40.7	↑0.5
2/21 18:30	41.2	↑0.5
2/21 18:40	41.7	↑0.5
2/21 18:50	42.3	↑0.6
2/21 19:00	42.8	↑0.5
2/21 19:10	43.3	↑0.5
2/21 19:20	43.9	↑0.6
2/21 19:30	44.4	↑0.5
2/21 19:40	45.0	↑0.6
2/21 19:50	45.5	↑0.5
2/21 20:00	46.0	↑0.5
2/21 20:10	46.5	↑0.5
2/21 20:20	47.0	↑0.5
2/21 20:30	47.4	↑0.4
2/21 20:40	47.9	↑0.5
2/21 20:50	48.3	↑0.4
2/21 21:00	48.7	↑0.4
2/21 21:10	49.1	↑0.4
2/21 21:20	49.4	↑0.3
2/21 21:30	49.8	↑0.4
2/21 21:40	50.1	↑0.3
2/21 21:50	50.4	↑0.3
2/21 22:00	50.7	↑0.3
2/21 22:10	51.0	↑0.3
2/21 22:20	51.3	↑0.3
2/21 22:30	51.5	↑0.2
2/21 22:40	51.8	↑0.3
2/21 22:50	52.0	↑0.2
2/21 23:00	52.3	↑0.3
2/21 23:10	52.5	↑0.2
2/21 23:20	52.8	↑0.3
2/21 23:30	53.1	↑0.3
2/21 23:40	53.4	↑0.3
2/21 23:50	53.7	↑0.3