19 (火)	03:48	09:11	15:45	22:21
	77cm	42cm	107cm	38cm
大潮 出 06:15 入 16:56 出 18:20 入 06:12

コイセボイ（北海道）2030年02月19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
2/19 00:00	45.1	↑1.8
2/19 00:10	46.9	↑1.8
2/19 00:20	48.8	↑1.9
2/19 00:30	50.7	↑1.9
2/19 00:40	52.7	↑2.0
2/19 00:50	54.7	↑2.0
2/19 01:00	56.7	↑2.0
2/19 01:10	58.6	↑1.9
2/19 01:20	60.6	↑2.0
2/19 01:30	62.4	↑1.8
2/19 01:40	64.2	↑1.8
2/19 01:50	66.0	↑1.8
2/19 02:00	67.6	↑1.6
2/19 02:10	69.2	↑1.6
2/19 02:20	70.6	↑1.4
2/19 02:30	71.9	↑1.3
2/19 02:40	73.0	↑1.1
2/19 02:50	74.0	↑1.0
2/19 03:00	74.9	↑0.9
2/19 03:10	75.6	↑0.7
2/19 03:20	76.1	↑0.5
2/19 03:30	76.5	↑0.4
2/19 03:40	76.7	↑0.2	満潮
2/19 03:50	76.7	0
2/19 04:00	76.6	↓-0.1
2/19 04:10	76.3	↓-0.3
2/19 04:20	75.8	↓-0.5
2/19 04:30	75.2	↓-0.6
2/19 04:40	74.4	↓-0.8
2/19 04:50	73.5	↓-0.9
2/19 05:00	72.5	↓-1.0
2/19 05:10	71.3	↓-1.2
2/19 05:20	70.0	↓-1.3
2/19 05:30	68.6	↓-1.4
2/19 05:40	67.2	↓-1.4
2/19 05:50	65.6	↓-1.6
2/19 06:00	64.0	↓-1.6
2/19 06:10	62.3	↓-1.7
2/19 06:20	60.6	↓-1.7
2/19 06:30	58.9	↓-1.7
2/19 06:40	57.2	↓-1.7
2/19 06:50	55.5	↓-1.7
2/19 07:00	53.8	↓-1.7
2/19 07:10	52.2	↓-1.6
2/19 07:20	50.6	↓-1.6
2/19 07:30	49.1	↓-1.5
2/19 07:40	47.7	↓-1.4
2/19 07:50	46.4	↓-1.3
2/19 08:00	45.2	↓-1.2
2/19 08:10	44.2	↓-1.0
2/19 08:20	43.3	↓-0.9
2/19 08:30	42.5	↓-0.8
2/19 08:40	41.9	↓-0.6
2/19 08:50	41.4	↓-0.5
2/19 09:00	41.2	↓-0.2
2/19 09:10	41.1	↓-0.1	干潮
2/19 09:20	41.2	↑0.1
2/19 09:30	41.5	↑0.3
2/19 09:40	42.0	↑0.5
2/19 09:50	42.6	↑0.6
2/19 10:00	43.5	↑0.9
2/19 10:10	44.5	↑1.0
2/19 10:20	45.7	↑1.2
2/19 10:30	47.1	↑1.4
2/19 10:40	48.7	↑1.6
2/19 10:50	50.4	↑1.7
2/19 11:00	52.3	↑1.9
2/19 11:10	54.3	↑2.0
2/19 11:20	56.4	↑2.1
2/19 11:30	58.7	↑2.3
2/19 11:40	61.0	↑2.3
2/19 11:50	63.5	↑2.5
2/19 12:00	66.0	↑2.5
2/19 12:10	68.6	↑2.6
2/19 12:20	71.2	↑2.6
2/19 12:30	73.8	↑2.6
2/19 12:40	76.4	↑2.6
2/19 12:50	79.1	↑2.7
2/19 13:00	81.7	↑2.6
2/19 13:10	84.2	↑2.5
2/19 13:20	86.7	↑2.5
2/19 13:30	89.1	↑2.4
2/19 13:40	91.5	↑2.4
2/19 13:50	93.7	↑2.2
2/19 14:00	95.7	↑2.0
2/19 14:10	97.7	↑2.0
2/19 14:20	99.5	↑1.8
2/19 14:30	101.1	↑1.6
2/19 14:40	102.5	↑1.4
2/19 14:50	103.8	↑1.3
2/19 15:00	104.8	↑1.0
2/19 15:10	105.7	↑0.9
2/19 15:20	106.3	↑0.6
2/19 15:30	106.8	↑0.5
2/19 15:40	107.0	↑0.2	満潮
2/19 15:50	106.9	↓-0.1
2/19 16:00	106.7	↓-0.2
2/19 16:10	106.2	↓-0.5
2/19 16:20	105.6	↓-0.6
2/19 16:30	104.7	↓-0.9
2/19 16:40	103.6	↓-1.1
2/19 16:50	102.3	↓-1.3
2/19 17:00	100.8	↓-1.5
2/19 17:10	99.1	↓-1.7
2/19 17:20	97.3	↓-1.8
2/19 17:30	95.3	↓-2.0
2/19 17:40	93.1	↓-2.2
2/19 17:50	90.8	↓-2.3
2/19 18:00	88.4	↓-2.4
2/19 18:10	85.9	↓-2.5
2/19 18:20	83.3	↓-2.6
2/19 18:30	80.6	↓-2.7
2/19 18:40	77.9	↓-2.7
2/19 18:50	75.2	↓-2.7
2/19 19:00	72.4	↓-2.8	最大潮位差
2/19 19:10	69.6	↓-2.8	最大潮位差
2/19 19:20	66.9	↓-2.7
2/19 19:30	64.2	↓-2.7
2/19 19:40	61.5	↓-2.7
2/19 19:50	58.9	↓-2.6
2/19 20:00	56.4	↓-2.5
2/19 20:10	54.0	↓-2.4
2/19 20:20	51.7	↓-2.3
2/19 20:30	49.5	↓-2.2
2/19 20:40	47.5	↓-2.0
2/19 20:50	45.7	↓-1.8
2/19 21:00	44.0	↓-1.7
2/19 21:10	42.5	↓-1.5
2/19 21:20	41.2	↓-1.3
2/19 21:30	40.0	↓-1.2
2/19 21:40	39.1	↓-0.9
2/19 21:50	38.4	↓-0.7
2/19 22:00	37.9	↓-0.5
2/19 22:10	37.5	↓-0.4
2/19 22:20	37.4	↓-0.1	干潮
2/19 22:30	37.5	↑0.1
2/19 22:40	37.8	↑0.3
2/19 22:50	38.3	↑0.5
2/19 23:00	39.0	↑0.7
2/19 23:10	39.9	↑0.9
2/19 23:20	40.9	↑1.0
2/19 23:30	42.1	↑1.2
2/19 23:40	43.5	↑1.4
2/19 23:50	45.0	↑1.5