31 (日)	04:14	07:57	14:35	22:18
	72cm	61cm	119cm	11cm
中潮 出 05:55 入 16:15 出 07:52 入 16:42

コイセボイ（北海道）2027年10月31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
10/31 00:00	32.9	↑2.2
10/31 00:10	35.2	↑2.3
10/31 00:20	37.5	↑2.3
10/31 00:30	39.8	↑2.3
10/31 00:40	42.2	↑2.4
10/31 00:50	44.5	↑2.3
10/31 01:00	46.8	↑2.3
10/31 01:10	49.1	↑2.3
10/31 01:20	51.3	↑2.2
10/31 01:30	53.4	↑2.1
10/31 01:40	55.5	↑2.1
10/31 01:50	57.5	↑2.0
10/31 02:00	59.3	↑1.8
10/31 02:10	61.1	↑1.8
10/31 02:20	62.7	↑1.6
10/31 02:30	64.3	↑1.6
10/31 02:40	65.6	↑1.3
10/31 02:50	66.9	↑1.3
10/31 03:00	68.0	↑1.1
10/31 03:10	68.9	↑0.9
10/31 03:20	69.7	↑0.8
10/31 03:30	70.4	↑0.7
10/31 03:40	70.9	↑0.5
10/31 03:50	71.3	↑0.4
10/31 04:00	71.5	↑0.2
10/31 04:10	71.6	↑0.1	満潮
10/31 04:20	71.6	0
10/31 04:30	71.5	↓-0.1
10/31 04:40	71.2	↓-0.3
10/31 04:50	70.9	↓-0.3
10/31 05:00	70.4	↓-0.5
10/31 05:10	69.9	↓-0.5
10/31 05:20	69.3	↓-0.6
10/31 05:30	68.6	↓-0.7
10/31 05:40	67.9	↓-0.7
10/31 05:50	67.1	↓-0.8
10/31 06:00	66.4	↓-0.7
10/31 06:10	65.6	↓-0.8
10/31 06:20	64.8	↓-0.8
10/31 06:30	64.1	↓-0.7
10/31 06:40	63.4	↓-0.7
10/31 06:50	62.7	↓-0.7
10/31 07:00	62.1	↓-0.6
10/31 07:10	61.6	↓-0.5
10/31 07:20	61.1	↓-0.5
10/31 07:30	60.8	↓-0.3
10/31 07:40	60.5	↓-0.3
10/31 07:50	60.4	↓-0.1	干潮
10/31 08:00	60.4	0
10/31 08:10	60.5	↑0.1
10/31 08:20	60.7	↑0.2
10/31 08:30	61.1	↑0.4
10/31 08:40	61.7	↑0.6
10/31 08:50	62.3	↑0.6
10/31 09:00	63.2	↑0.9
10/31 09:10	64.1	↑0.9
10/31 09:20	65.2	↑1.1
10/31 09:30	66.5	↑1.3
10/31 09:40	67.9	↑1.4
10/31 09:50	69.4	↑1.5
10/31 10:00	71.1	↑1.7
10/31 10:10	72.9	↑1.8
10/31 10:20	74.8	↑1.9
10/31 10:30	76.8	↑2.0
10/31 10:40	78.9	↑2.1
10/31 10:50	81.0	↑2.1
10/31 11:00	83.3	↑2.3
10/31 11:10	85.6	↑2.3
10/31 11:20	87.9	↑2.3
10/31 11:30	90.2	↑2.3
10/31 11:40	92.6	↑2.4
10/31 11:50	94.9	↑2.3
10/31 12:00	97.3	↑2.4
10/31 12:10	99.6	↑2.3
10/31 12:20	101.8	↑2.2
10/31 12:30	104.0	↑2.2
10/31 12:40	106.0	↑2.0
10/31 12:50	108.0	↑2.0
10/31 13:00	109.8	↑1.8
10/31 13:10	111.5	↑1.7
10/31 13:20	113.1	↑1.6
10/31 13:30	114.5	↑1.4
10/31 13:40	115.7	↑1.2
10/31 13:50	116.8	↑1.1
10/31 14:00	117.6	↑0.8
10/31 14:10	118.3	↑0.7
10/31 14:20	118.7	↑0.4
10/31 14:30	118.9	↑0.2	満潮
10/31 14:40	118.9	0
10/31 14:50	118.6	↓-0.3
10/31 15:00	118.1	↓-0.5
10/31 15:10	117.4	↓-0.7
10/31 15:20	116.4	↓-1.0
10/31 15:30	115.2	↓-1.2
10/31 15:40	113.8	↓-1.4
10/31 15:50	112.1	↓-1.7
10/31 16:00	110.2	↓-1.9
10/31 16:10	108.1	↓-2.1
10/31 16:20	105.8	↓-2.3
10/31 16:30	103.3	↓-2.5
10/31 16:40	100.6	↓-2.7
10/31 16:50	97.7	↓-2.9
10/31 17:00	94.7	↓-3.0
10/31 17:10	91.5	↓-3.2
10/31 17:20	88.2	↓-3.3
10/31 17:30	84.8	↓-3.4
10/31 17:40	81.2	↓-3.6
10/31 17:50	77.6	↓-3.6
10/31 18:00	73.9	↓-3.7
10/31 18:10	70.2	↓-3.7
10/31 18:20	66.5	↓-3.7
10/31 18:30	62.7	↓-3.8	最大潮位差
10/31 18:40	59.0	↓-3.7
10/31 18:50	55.2	↓-3.8	最大潮位差
10/31 19:00	51.6	↓-3.6
10/31 19:10	48.0	↓-3.6
10/31 19:20	44.4	↓-3.6
10/31 19:30	41.0	↓-3.4
10/31 19:40	37.7	↓-3.3
10/31 19:50	34.6	↓-3.1
10/31 20:00	31.5	↓-3.1
10/31 20:10	28.7	↓-2.8
10/31 20:20	26.0	↓-2.7
10/31 20:30	23.5	↓-2.5
10/31 20:40	21.2	↓-2.3
10/31 20:50	19.1	↓-2.1
10/31 21:00	17.2	↓-1.9
10/31 21:10	15.5	↓-1.7
10/31 21:20	14.1	↓-1.4
10/31 21:30	12.9	↓-1.2
10/31 21:40	11.9	↓-1.0
10/31 21:50	11.2	↓-0.7
10/31 22:00	10.7	↓-0.5
10/31 22:10	10.4	↓-0.3	干潮
10/31 22:20	10.4	0
10/31 22:30	10.5	↑0.1
10/31 22:40	10.9	↑0.4
10/31 22:50	11.5	↑0.6
10/31 23:00	12.3	↑0.8
10/31 23:10	13.3	↑1.0
10/31 23:20	14.5	↑1.2
10/31 23:30	15.8	↑1.3
10/31 23:40	17.3	↑1.5
10/31 23:50	19.0	↑1.7