1 (木)	04:19	11:26	17:48	22:19
	99cm	15cm	68cm	48cm
中潮 出 05:03 入 17:49 出 22:18 入 07:03 潮干狩り ○ 09:48～13:10

コイセボイ（北海道）2021年04月1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
4/1 00:00	56.0	↑1.7
4/1 00:10	57.8	↑1.8
4/1 00:20	59.7	↑1.9
4/1 00:30	61.7	↑2.0
4/1 00:40	63.8	↑2.1
4/1 00:50	65.9	↑2.1
4/1 01:00	68.1	↑2.2
4/1 01:10	70.3	↑2.2
4/1 01:20	72.6	↑2.3
4/1 01:30	74.8	↑2.2
4/1 01:40	77.1	↑2.3
4/1 01:50	79.3	↑2.2
4/1 02:00	81.4	↑2.1
4/1 02:10	83.5	↑2.1
4/1 02:20	85.6	↑2.1
4/1 02:30	87.5	↑1.9
4/1 02:40	89.3	↑1.8
4/1 02:50	91.0	↑1.7
4/1 03:00	92.5	↑1.5
4/1 03:10	93.9	↑1.4
4/1 03:20	95.2	↑1.3
4/1 03:30	96.2	↑1.0
4/1 03:40	97.1	↑0.9
4/1 03:50	97.8	↑0.7
4/1 04:00	98.2	↑0.4
4/1 04:10	98.5	↑0.3	満潮
4/1 04:20	98.6	↑0.1
4/1 04:30	98.4	↓-0.2
4/1 04:40	98.0	↓-0.4
4/1 04:50	97.4	↓-0.6
4/1 05:00	96.6	↓-0.8
4/1 05:10	95.6	↓-1.0
4/1 05:20	94.3	↓-1.3
4/1 05:30	92.9	↓-1.4
4/1 05:40	91.2	↓-1.7
4/1 05:50	89.4	↓-1.8
4/1 06:00	87.4	↓-2.0
4/1 06:10	85.2	↓-2.2
4/1 06:20	82.8	↓-2.4
4/1 06:30	80.3	↓-2.5
4/1 06:40	77.7	↓-2.6
4/1 06:50	74.9	↓-2.8
4/1 07:00	72.0	↓-2.9
4/1 07:10	69.1	↓-2.9
4/1 07:20	66.1	↓-3.0
4/1 07:30	63.0	↓-3.1
4/1 07:40	59.9	↓-3.1
4/1 07:50	56.7	↓-3.2	最大潮位差
4/1 08:00	53.6	↓-3.1
4/1 08:10	50.5	↓-3.1
4/1 08:20	47.4	↓-3.1
4/1 08:30	44.4	↓-3.0
4/1 08:40	41.4	↓-3.0
4/1 08:50	38.5	↓-2.9
4/1 09:00	35.8	↓-2.7
4/1 09:10	33.1	↓-2.7
4/1 09:20	30.6	↓-2.5
4/1 09:30	28.2	↓-2.4
4/1 09:40	26.0	↓-2.2
4/1 09:50	23.9	↓-2.1
4/1 10:00	22.0	↓-1.9
4/1 10:10	20.4	↓-1.6
4/1 10:20	18.9	↓-1.5
4/1 10:30	17.6	↓-1.3
4/1 10:40	16.5	↓-1.1
4/1 10:50	15.6	↓-0.9
4/1 11:00	15.0	↓-0.6
4/1 11:10	14.5	↓-0.5
4/1 11:20	14.3	↓-0.2	干潮
4/1 11:30	14.3	0
4/1 11:40	14.5	↑0.2
4/1 11:50	14.9	↑0.4
4/1 12:00	15.5	↑0.6
4/1 12:10	16.3	↑0.8
4/1 12:20	17.3	↑1.0
4/1 12:30	18.5	↑1.2
4/1 12:40	19.8	↑1.3
4/1 12:50	21.3	↑1.5
4/1 13:00	22.9	↑1.6
4/1 13:10	24.6	↑1.7
4/1 13:20	26.5	↑1.9
4/1 13:30	28.4	↑1.9
4/1 13:40	30.4	↑2.0
4/1 13:50	32.5	↑2.1
4/1 14:00	34.7	↑2.2
4/1 14:10	36.9	↑2.2
4/1 14:20	39.1	↑2.2
4/1 14:30	41.3	↑2.2
4/1 14:40	43.5	↑2.2
4/1 14:50	45.7	↑2.2
4/1 15:00	47.8	↑2.1
4/1 15:10	49.9	↑2.1
4/1 15:20	51.9	↑2.0
4/1 15:30	53.9	↑2.0
4/1 15:40	55.7	↑1.8
4/1 15:50	57.4	↑1.7
4/1 16:00	59.1	↑1.7
4/1 16:10	60.6	↑1.5
4/1 16:20	61.9	↑1.3
4/1 16:30	63.2	↑1.3
4/1 16:40	64.2	↑1.0
4/1 16:50	65.2	↑1.0
4/1 17:00	66.0	↑0.8
4/1 17:10	66.6	↑0.6
4/1 17:20	67.1	↑0.5
4/1 17:30	67.4	↑0.3
4/1 17:40	67.6	↑0.2	満潮
4/1 17:50	67.6	0
4/1 18:00	67.5	↓-0.1
4/1 18:10	67.3	↓-0.2
4/1 18:20	66.9	↓-0.4
4/1 18:30	66.4	↓-0.5
4/1 18:40	65.8	↓-0.6
4/1 18:50	65.0	↓-0.8
4/1 19:00	64.2	↓-0.8
4/1 19:10	63.3	↓-0.9
4/1 19:20	62.4	↓-0.9
4/1 19:30	61.3	↓-1.1
4/1 19:40	60.3	↓-1.0
4/1 19:50	59.2	↓-1.1
4/1 20:00	58.1	↓-1.1
4/1 20:10	56.9	↓-1.2
4/1 20:20	55.8	↓-1.1
4/1 20:30	54.7	↓-1.1
4/1 20:40	53.7	↓-1.0
4/1 20:50	52.7	↓-1.0
4/1 21:00	51.8	↓-0.9
4/1 21:10	50.9	↓-0.9
4/1 21:20	50.1	↓-0.8
4/1 21:30	49.5	↓-0.6
4/1 21:40	48.9	↓-0.6
4/1 21:50	48.5	↓-0.4
4/1 22:00	48.1	↓-0.4
4/1 22:10	48.0	↓-0.1	干潮
4/1 22:20	47.9	↓-0.1
4/1 22:30	48.0	↑0.1
4/1 22:40	48.3	↑0.3
4/1 22:50	48.7	↑0.4
4/1 23:00	49.2	↑0.5
4/1 23:10	49.9	↑0.7
4/1 23:20	50.8	↑0.9
4/1 23:30	51.8	↑1.0
4/1 23:40	53.0	↑1.2
4/1 23:50	54.3	↑1.3