20 (日)	09:01	19:14	-	-
	110cm	29cm	-	-
長潮 出 06:14 入 16:57 出 03:15 入 11:43

コイセボイ（北海道）2028年02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
2/20 00:00	49.5	↑0.6
2/20 00:10	50.2	↑0.7
2/20 00:20	50.9	↑0.7
2/20 00:30	51.6	↑0.7
2/20 00:40	52.3	↑0.7
2/20 00:50	53.1	↑0.8
2/20 01:00	54.0	↑0.9
2/20 01:10	54.8	↑0.8
2/20 01:20	55.7	↑0.9
2/20 01:30	56.7	↑1.0
2/20 01:40	57.7	↑1.0
2/20 01:50	58.7	↑1.0
2/20 02:00	59.8	↑1.1
2/20 02:10	60.9	↑1.1
2/20 02:20	62.1	↑1.2
2/20 02:30	63.3	↑1.2
2/20 02:40	64.6	↑1.3
2/20 02:50	65.9	↑1.3
2/20 03:00	67.2	↑1.3
2/20 03:10	68.6	↑1.4
2/20 03:20	70.0	↑1.4
2/20 03:30	71.4	↑1.4
2/20 03:40	72.9	↑1.5
2/20 03:50	74.4	↑1.5
2/20 04:00	76.0	↑1.6
2/20 04:10	77.5	↑1.5
2/20 04:20	79.1	↑1.6
2/20 04:30	80.7	↑1.6
2/20 04:40	82.2	↑1.5
2/20 04:50	83.8	↑1.6
2/20 05:00	85.4	↑1.6
2/20 05:10	87.0	↑1.6
2/20 05:20	88.6	↑1.6
2/20 05:30	90.1	↑1.5
2/20 05:40	91.7	↑1.6
2/20 05:50	93.2	↑1.5
2/20 06:00	94.7	↑1.5
2/20 06:10	96.1	↑1.4
2/20 06:20	97.5	↑1.4
2/20 06:30	98.8	↑1.3
2/20 06:40	100.1	↑1.3
2/20 06:50	101.4	↑1.3
2/20 07:00	102.5	↑1.1
2/20 07:10	103.6	↑1.1
2/20 07:20	104.6	↑1.0
2/20 07:30	105.6	↑1.0
2/20 07:40	106.4	↑0.8
2/20 07:50	107.2	↑0.8
2/20 08:00	107.8	↑0.6
2/20 08:10	108.4	↑0.6
2/20 08:20	108.9	↑0.5
2/20 08:30	109.3	↑0.4
2/20 08:40	109.5	↑0.2
2/20 08:50	109.7	↑0.2
2/20 09:00	109.7	0	満潮
2/20 09:10	109.7	0
2/20 09:20	109.5	↓-0.2
2/20 09:30	109.2	↓-0.3
2/20 09:40	108.8	↓-0.4
2/20 09:50	108.3	↓-0.5
2/20 10:00	107.7	↓-0.6
2/20 10:10	107.0	↓-0.7
2/20 10:20	106.1	↓-0.9
2/20 10:30	105.2	↓-0.9
2/20 10:40	104.1	↓-1.1
2/20 10:50	103.0	↓-1.1
2/20 11:00	101.7	↓-1.3
2/20 11:10	100.4	↓-1.3
2/20 11:20	99.0	↓-1.4
2/20 11:30	97.4	↓-1.6
2/20 11:40	95.8	↓-1.6
2/20 11:50	94.1	↓-1.7
2/20 12:00	92.4	↓-1.7
2/20 12:10	90.6	↓-1.8
2/20 12:20	88.7	↓-1.9
2/20 12:30	86.8	↓-1.9
2/20 12:40	84.8	↓-2.0
2/20 12:50	82.7	↓-2.1
2/20 13:00	80.7	↓-2.0
2/20 13:10	78.6	↓-2.1
2/20 13:20	76.5	↓-2.1
2/20 13:30	74.3	↓-2.2	最大潮位差
2/20 13:40	72.2	↓-2.1
2/20 13:50	70.0	↓-2.2	最大潮位差
2/20 14:00	67.9	↓-2.1
2/20 14:10	65.8	↓-2.1
2/20 14:20	63.6	↓-2.2	最大潮位差
2/20 14:30	61.5	↓-2.1
2/20 14:40	59.5	↓-2.0
2/20 14:50	57.4	↓-2.1
2/20 15:00	55.4	↓-2.0
2/20 15:10	53.5	↓-1.9
2/20 15:20	51.6	↓-1.9
2/20 15:30	49.7	↓-1.9
2/20 15:40	48.0	↓-1.7
2/20 15:50	46.2	↓-1.8
2/20 16:00	44.6	↓-1.6
2/20 16:10	43.0	↓-1.6
2/20 16:20	41.5	↓-1.5
2/20 16:30	40.1	↓-1.4
2/20 16:40	38.7	↓-1.4
2/20 16:50	37.5	↓-1.2
2/20 17:00	36.3	↓-1.2
2/20 17:10	35.2	↓-1.1
2/20 17:20	34.2	↓-1.0
2/20 17:30	33.3	↓-0.9
2/20 17:40	32.5	↓-0.8
2/20 17:50	31.7	↓-0.8
2/20 18:00	31.1	↓-0.6
2/20 18:10	30.5	↓-0.6
2/20 18:20	30.1	↓-0.4
2/20 18:30	29.7	↓-0.4
2/20 18:40	29.4	↓-0.3
2/20 18:50	29.1	↓-0.3
2/20 19:00	29.0	↓-0.1
2/20 19:10	28.9	↓-0.1	干潮
2/20 19:20	29.0	↑0.1
2/20 19:30	29.0	0
2/20 19:40	29.2	↑0.2
2/20 19:50	29.4	↑0.2
2/20 20:00	29.7	↑0.3
2/20 20:10	30.1	↑0.4
2/20 20:20	30.5	↑0.4
2/20 20:30	30.9	↑0.4
2/20 20:40	31.4	↑0.5
2/20 20:50	32.0	↑0.6
2/20 21:00	32.6	↑0.6
2/20 21:10	33.2	↑0.6
2/20 21:20	33.9	↑0.7
2/20 21:30	34.6	↑0.7
2/20 21:40	35.3	↑0.7
2/20 21:50	36.0	↑0.7
2/20 22:00	36.8	↑0.8
2/20 22:10	37.6	↑0.8
2/20 22:20	38.4	↑0.8
2/20 22:30	39.2	↑0.8
2/20 22:40	40.0	↑0.8
2/20 22:50	40.9	↑0.9
2/20 23:00	41.7	↑0.8
2/20 23:10	42.6	↑0.9
2/20 23:20	43.4	↑0.8
2/20 23:30	44.3	↑0.9
2/20 23:40	45.2	↑0.9
2/20 23:50	46.0	↑0.8