20 (火)	06:10	13:46	19:21	23:11
	107cm	37cm	59cm	52cm
小潮 出 06:13 入 16:58 出 08:38 入 23:58

コイセボイ（北海道）2029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	52.4	↑0.5
2/20 00:10	53.1	↑0.7
2/20 00:20	53.9	↑0.8
2/20 00:30	54.9	↑1.0
2/20 00:40	55.9	↑1.0
2/20 00:50	57.2	↑1.3
2/20 01:00	58.5	↑1.3
2/20 01:10	60.0	↑1.5
2/20 01:20	61.5	↑1.5
2/20 01:30	63.2	↑1.7
2/20 01:40	65.0	↑1.8
2/20 01:50	66.8	↑1.8
2/20 02:00	68.7	↑1.9
2/20 02:10	70.7	↑2.0
2/20 02:20	72.8	↑2.1
2/20 02:30	74.9	↑2.1
2/20 02:40	77.0	↑2.1
2/20 02:50	79.1	↑2.1
2/20 03:00	81.3	↑2.2
2/20 03:10	83.4	↑2.1
2/20 03:20	85.5	↑2.1
2/20 03:30	87.6	↑2.1
2/20 03:40	89.6	↑2.0
2/20 03:50	91.6	↑2.0
2/20 04:00	93.5	↑1.9
2/20 04:10	95.3	↑1.8
2/20 04:20	97.0	↑1.7
2/20 04:30	98.6	↑1.6
2/20 04:40	100.1	↑1.5
2/20 04:50	101.5	↑1.4
2/20 05:00	102.7	↑1.2
2/20 05:10	103.8	↑1.1
2/20 05:20	104.7	↑0.9
2/20 05:30	105.5	↑0.8
2/20 05:40	106.1	↑0.6
2/20 05:50	106.5	↑0.4
2/20 06:00	106.8	↑0.3	満潮
2/20 06:10	106.8	0	満潮
2/20 06:20	106.7	↓-0.1
2/20 06:30	106.5	↓-0.2
2/20 06:40	106.0	↓-0.5
2/20 06:50	105.4	↓-0.6
2/20 07:00	104.6	↓-0.8
2/20 07:10	103.6	↓-1.0
2/20 07:20	102.5	↓-1.1
2/20 07:30	101.2	↓-1.3
2/20 07:40	99.7	↓-1.5
2/20 07:50	98.1	↓-1.6
2/20 08:00	96.4	↓-1.7
2/20 08:10	94.6	↓-1.8
2/20 08:20	92.6	↓-2.0
2/20 08:30	90.5	↓-2.1
2/20 08:40	88.4	↓-2.1
2/20 08:50	86.1	↓-2.3
2/20 09:00	83.8	↓-2.3
2/20 09:10	81.4	↓-2.4
2/20 09:20	79.0	↓-2.4
2/20 09:30	76.5	↓-2.5	最大潮位差
2/20 09:40	74.1	↓-2.4
2/20 09:50	71.6	↓-2.5	最大潮位差
2/20 10:00	69.1	↓-2.5	最大潮位差
2/20 10:10	66.7	↓-2.4
2/20 10:20	64.3	↓-2.4
2/20 10:30	61.9	↓-2.4
2/20 10:40	59.6	↓-2.3
2/20 10:50	57.3	↓-2.3
2/20 11:00	55.1	↓-2.2
2/20 11:10	53.1	↓-2.0
2/20 11:20	51.1	↓-2.0
2/20 11:30	49.2	↓-1.9
2/20 11:40	47.4	↓-1.8
2/20 11:50	45.8	↓-1.6
2/20 12:00	44.3	↓-1.5
2/20 12:10	42.9	↓-1.4
2/20 12:20	41.6	↓-1.3
2/20 12:30	40.5	↓-1.1
2/20 12:40	39.5	↓-1.0
2/20 12:50	38.7	↓-0.8
2/20 13:00	38.0	↓-0.7
2/20 13:10	37.4	↓-0.6
2/20 13:20	37.0	↓-0.4
2/20 13:30	36.8	↓-0.2
2/20 13:40	36.6	↓-0.2	干潮
2/20 13:50	36.6	0
2/20 14:00	36.7	↑0.1
2/20 14:10	37.0	↑0.3
2/20 14:20	37.3	↑0.3
2/20 14:30	37.8	↑0.5
2/20 14:40	38.4	↑0.6
2/20 14:50	39.0	↑0.6
2/20 15:00	39.8	↑0.8
2/20 15:10	40.6	↑0.8
2/20 15:20	41.4	↑0.8
2/20 15:30	42.4	↑1.0
2/20 15:40	43.3	↑0.9
2/20 15:50	44.3	↑1.0
2/20 16:00	45.4	↑1.1
2/20 16:10	46.4	↑1.0
2/20 16:20	47.5	↑1.1
2/20 16:30	48.5	↑1.0
2/20 16:40	49.6	↑1.1
2/20 16:50	50.6	↑1.0
2/20 17:00	51.5	↑0.9
2/20 17:10	52.5	↑1.0
2/20 17:20	53.4	↑0.9
2/20 17:30	54.2	↑0.8
2/20 17:40	55.0	↑0.8
2/20 17:50	55.8	↑0.8
2/20 18:00	56.4	↑0.6
2/20 18:10	57.0	↑0.6
2/20 18:20	57.5	↑0.5
2/20 18:30	57.9	↑0.4
2/20 18:40	58.3	↑0.4
2/20 18:50	58.6	↑0.3
2/20 19:00	58.8	↑0.2
2/20 19:10	58.9	↑0.1
2/20 19:20	58.9	0	満潮
2/20 19:30	58.9	0
2/20 19:40	58.8	↓-0.1
2/20 19:50	58.6	↓-0.2
2/20 20:00	58.3	↓-0.3
2/20 20:10	58.0	↓-0.3
2/20 20:20	57.7	↓-0.3
2/20 20:30	57.3	↓-0.4
2/20 20:40	56.9	↓-0.4
2/20 20:50	56.4	↓-0.5
2/20 21:00	55.9	↓-0.5
2/20 21:10	55.4	↓-0.5
2/20 21:20	54.9	↓-0.5
2/20 21:30	54.4	↓-0.5
2/20 21:40	53.9	↓-0.5
2/20 21:50	53.4	↓-0.5
2/20 22:00	52.9	↓-0.5
2/20 22:10	52.5	↓-0.4
2/20 22:20	52.1	↓-0.4
2/20 22:30	51.8	↓-0.3
2/20 22:40	51.5	↓-0.3
2/20 22:50	51.3	↓-0.2
2/20 23:00	51.2	↓-0.1
2/20 23:10	51.2	0	干潮
2/20 23:20	51.2	0
2/20 23:30	51.3	↑0.1
2/20 23:40	51.6	↑0.3
2/20 23:50	51.9	↑0.3