20 (月)	06:02	14:38	-	-
	102cm	23cm	-	-
小潮 出 04:30 入 18:12 出 09:04 入 - 潮干狩り ○ 13:40～15:41

コイセボイ（北海道）2048年04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
4/20 00:00	51.1	↑1.0
4/20 00:10	52.2	↑1.1
4/20 00:20	53.4	↑1.2
4/20 00:30	54.6	↑1.2
4/20 00:40	56.0	↑1.4
4/20 00:50	57.4	↑1.4
4/20 01:00	59.0	↑1.6
4/20 01:10	60.5	↑1.5
4/20 01:20	62.2	↑1.7
4/20 01:30	63.9	↑1.7
4/20 01:40	65.7	↑1.8
4/20 01:50	67.5	↑1.8
4/20 02:00	69.3	↑1.8
4/20 02:10	71.2	↑1.9
4/20 02:20	73.1	↑1.9
4/20 02:30	75.0	↑1.9
4/20 02:40	76.9	↑1.9
4/20 02:50	78.8	↑1.9
4/20 03:00	80.7	↑1.9
4/20 03:10	82.6	↑1.9
4/20 03:20	84.4	↑1.8
4/20 03:30	86.2	↑1.8
4/20 03:40	87.9	↑1.7
4/20 03:50	89.6	↑1.7
4/20 04:00	91.2	↑1.6
4/20 04:10	92.7	↑1.5
4/20 04:20	94.1	↑1.4
4/20 04:30	95.4	↑1.3
4/20 04:40	96.6	↑1.2
4/20 04:50	97.7	↑1.1
4/20 05:00	98.6	↑0.9
4/20 05:10	99.4	↑0.8
4/20 05:20	100.1	↑0.7
4/20 05:30	100.7	↑0.6
4/20 05:40	101.1	↑0.4
4/20 05:50	101.3	↑0.2
4/20 06:00	101.4	↑0.1	満潮
4/20 06:10	101.4	0
4/20 06:20	101.2	↓-0.2
4/20 06:30	100.8	↓-0.4
4/20 06:40	100.3	↓-0.5
4/20 06:50	99.6	↓-0.7
4/20 07:00	98.8	↓-0.8
4/20 07:10	97.8	↓-1.0
4/20 07:20	96.6	↓-1.2
4/20 07:30	95.4	↓-1.2
4/20 07:40	94.0	↓-1.4
4/20 07:50	92.4	↓-1.6
4/20 08:00	90.7	↓-1.7
4/20 08:10	89.0	↓-1.7
4/20 08:20	87.1	↓-1.9
4/20 08:30	85.1	↓-2.0
4/20 08:40	83.0	↓-2.1
4/20 08:50	80.8	↓-2.2
4/20 09:00	78.6	↓-2.2
4/20 09:10	76.2	↓-2.4
4/20 09:20	73.9	↓-2.3
4/20 09:30	71.5	↓-2.4
4/20 09:40	69.0	↓-2.5	最大潮位差
4/20 09:50	66.5	↓-2.5	最大潮位差
4/20 10:00	64.1	↓-2.4
4/20 10:10	61.6	↓-2.5	最大潮位差
4/20 10:20	59.1	↓-2.5	最大潮位差
4/20 10:30	56.6	↓-2.5	最大潮位差
4/20 10:40	54.2	↓-2.4
4/20 10:50	51.8	↓-2.4
4/20 11:00	49.5	↓-2.3
4/20 11:10	47.2	↓-2.3
4/20 11:20	45.0	↓-2.2
4/20 11:30	42.9	↓-2.1
4/20 11:40	40.8	↓-2.1
4/20 11:50	38.8	↓-2.0
4/20 12:00	37.0	↓-1.8
4/20 12:10	35.2	↓-1.8
4/20 12:20	33.5	↓-1.7
4/20 12:30	32.0	↓-1.5
4/20 12:40	30.5	↓-1.5
4/20 12:50	29.2	↓-1.3
4/20 13:00	28.0	↓-1.2
4/20 13:10	26.9	↓-1.1
4/20 13:20	26.0	↓-0.9
4/20 13:30	25.1	↓-0.9
4/20 13:40	24.4	↓-0.7
4/20 13:50	23.8	↓-0.6
4/20 14:00	23.4	↓-0.4
4/20 14:10	23.0	↓-0.4
4/20 14:20	22.8	↓-0.2
4/20 14:30	22.6	↓-0.2	干潮
4/20 14:40	22.6	0
4/20 14:50	22.7	↑0.1
4/20 15:00	22.9	↑0.2
4/20 15:10	23.2	↑0.3
4/20 15:20	23.5	↑0.3
4/20 15:30	23.9	↑0.4
4/20 15:40	24.4	↑0.5
4/20 15:50	25.0	↑0.6
4/20 16:00	25.6	↑0.6
4/20 16:10	26.3	↑0.7
4/20 16:20	27.1	↑0.8
4/20 16:30	27.8	↑0.7
4/20 16:40	28.6	↑0.8
4/20 16:50	29.4	↑0.8
4/20 17:00	30.3	↑0.9
4/20 17:10	31.1	↑0.8
4/20 17:20	32.0	↑0.9
4/20 17:30	32.8	↑0.8
4/20 17:40	33.6	↑0.8
4/20 17:50	34.5	↑0.9
4/20 18:00	35.3	↑0.8
4/20 18:10	36.1	↑0.8
4/20 18:20	36.8	↑0.7
4/20 18:30	37.6	↑0.8
4/20 18:40	38.3	↑0.7
4/20 18:50	38.9	↑0.6
4/20 19:00	39.6	↑0.7
4/20 19:10	40.1	↑0.5
4/20 19:20	40.7	↑0.6
4/20 19:30	41.2	↑0.5
4/20 19:40	41.7	↑0.5
4/20 19:50	42.1	↑0.4
4/20 20:00	42.5	↑0.4
4/20 20:10	42.8	↑0.3
4/20 20:20	43.1	↑0.3
4/20 20:30	43.4	↑0.3
4/20 20:40	43.7	↑0.3
4/20 20:50	43.9	↑0.2
4/20 21:00	44.1	↑0.2
4/20 21:10	44.3	↑0.2
4/20 21:20	44.5	↑0.2
4/20 21:30	44.6	↑0.1
4/20 21:40	44.8	↑0.2
4/20 21:50	44.9	↑0.1
4/20 22:00	45.1	↑0.2
4/20 22:10	45.3	↑0.2
4/20 22:20	45.5	↑0.2
4/20 22:30	45.7	↑0.2
4/20 22:40	45.9	↑0.2
4/20 22:50	46.1	↑0.2
4/20 23:00	46.4	↑0.3
4/20 23:10	46.7	↑0.3
4/20 23:20	47.1	↑0.4
4/20 23:30	47.5	↑0.4
4/20 23:40	48.0	↑0.5
4/20 23:50	48.5	↑0.5