18 (金)	06:36	08:09	16:03	-
	63cm	62cm	130cm	-
中潮 出 06:51 入 15:45 出 10:02 入 19:24

コイセボイ（北海道）2020年12月18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
12/18 00:00	15.1	↑0.5
12/18 00:10	15.7	↑0.6
12/18 00:20	16.6	↑0.9
12/18 00:30	17.5	↑0.9
12/18 00:40	18.7	↑1.2
12/18 00:50	19.9	↑1.2
12/18 01:00	21.3	↑1.4
12/18 01:10	22.8	↑1.5
12/18 01:20	24.4	↑1.6
12/18 01:30	26.1	↑1.7
12/18 01:40	27.8	↑1.7
12/18 01:50	29.7	↑1.9
12/18 02:00	31.5	↑1.8
12/18 02:10	33.4	↑1.9
12/18 02:20	35.3	↑1.9
12/18 02:30	37.2	↑1.9
12/18 02:40	39.1	↑1.9
12/18 02:50	40.9	↑1.8
12/18 03:00	42.8	↑1.9
12/18 03:10	44.5	↑1.7
12/18 03:20	46.3	↑1.8
12/18 03:30	47.9	↑1.6
12/18 03:40	49.5	↑1.6
12/18 03:50	51.0	↑1.5
12/18 04:00	52.5	↑1.5
12/18 04:10	53.8	↑1.3
12/18 04:20	55.0	↑1.2
12/18 04:30	56.2	↑1.2
12/18 04:40	57.2	↑1.0
12/18 04:50	58.2	↑1.0
12/18 05:00	59.0	↑0.8
12/18 05:10	59.7	↑0.7
12/18 05:20	60.3	↑0.6
12/18 05:30	60.9	↑0.6
12/18 05:40	61.3	↑0.4
12/18 05:50	61.6	↑0.3
12/18 06:00	61.9	↑0.3
12/18 06:10	62.1	↑0.2
12/18 06:20	62.2	↑0.1
12/18 06:30	62.2	0	満潮
12/18 06:40	62.2	0
12/18 06:50	62.2	0
12/18 07:00	62.1	↓-0.1
12/18 07:10	62.0	↓-0.1
12/18 07:20	61.9	↓-0.1
12/18 07:30	61.8	↓-0.1
12/18 07:40	61.7	↓-0.1
12/18 07:50	61.6	↓-0.1
12/18 08:00	61.6	0	干潮
12/18 08:10	61.5	↓-0.1
12/18 08:20	61.6	↑0.1
12/18 08:30	61.7	↑0.1
12/18 08:40	61.8	↑0.1
12/18 08:50	62.1	↑0.3
12/18 09:00	62.4	↑0.3
12/18 09:10	62.8	↑0.4
12/18 09:20	63.4	↑0.6
12/18 09:30	64.0	↑0.6
12/18 09:40	64.7	↑0.7
12/18 09:50	65.6	↑0.9
12/18 10:00	66.6	↑1.0
12/18 10:10	67.7	↑1.1
12/18 10:20	68.9	↑1.2
12/18 10:30	70.2	↑1.3
12/18 10:40	71.7	↑1.5
12/18 10:50	73.3	↑1.6
12/18 11:00	75.0	↑1.7
12/18 11:10	76.8	↑1.8
12/18 11:20	78.7	↑1.9
12/18 11:30	80.7	↑2.0
12/18 11:40	82.8	↑2.1
12/18 11:50	84.9	↑2.1
12/18 12:00	87.2	↑2.3
12/18 12:10	89.5	↑2.3
12/18 12:20	91.8	↑2.3
12/18 12:30	94.2	↑2.4
12/18 12:40	96.6	↑2.4
12/18 12:50	99.1	↑2.5
12/18 13:00	101.5	↑2.4
12/18 13:10	103.9	↑2.4
12/18 13:20	106.3	↑2.4
12/18 13:30	108.6	↑2.3
12/18 13:40	110.9	↑2.3
12/18 13:50	113.1	↑2.2
12/18 14:00	115.2	↑2.1
12/18 14:10	117.3	↑2.1
12/18 14:20	119.2	↑1.9
12/18 14:30	121.0	↑1.8
12/18 14:40	122.6	↑1.6
12/18 14:50	124.1	↑1.5
12/18 15:00	125.4	↑1.3
12/18 15:10	126.6	↑1.2
12/18 15:20	127.5	↑0.9
12/18 15:30	128.3	↑0.8
12/18 15:40	128.9	↑0.6
12/18 15:50	129.2	↑0.3
12/18 16:00	129.4	↑0.2	満潮
12/18 16:10	129.3	↓-0.1
12/18 16:20	129.0	↓-0.3
12/18 16:30	128.5	↓-0.5
12/18 16:40	127.8	↓-0.7
12/18 16:50	126.8	↓-1.0
12/18 17:00	125.6	↓-1.2
12/18 17:10	124.2	↓-1.4
12/18 17:20	122.6	↓-1.6
12/18 17:30	120.8	↓-1.8
12/18 17:40	118.7	↓-2.1
12/18 17:50	116.5	↓-2.2
12/18 18:00	114.1	↓-2.4
12/18 18:10	111.5	↓-2.6
12/18 18:20	108.7	↓-2.8
12/18 18:30	105.8	↓-2.9
12/18 18:40	102.7	↓-3.1
12/18 18:50	99.5	↓-3.2
12/18 19:00	96.2	↓-3.3
12/18 19:10	92.8	↓-3.4
12/18 19:20	89.4	↓-3.4
12/18 19:30	85.8	↓-3.6
12/18 19:40	82.2	↓-3.6
12/18 19:50	78.6	↓-3.6
12/18 20:00	74.9	↓-3.7	最大潮位差
12/18 20:10	71.3	↓-3.6
12/18 20:20	67.7	↓-3.6
12/18 20:30	64.1	↓-3.6
12/18 20:40	60.5	↓-3.6
12/18 20:50	57.0	↓-3.5
12/18 21:00	53.6	↓-3.4
12/18 21:10	50.3	↓-3.3
12/18 21:20	47.1	↓-3.2
12/18 21:30	44.1	↓-3.0
12/18 21:40	41.1	↓-3.0
12/18 21:50	38.3	↓-2.8
12/18 22:00	35.7	↓-2.6
12/18 22:10	33.2	↓-2.5
12/18 22:20	30.9	↓-2.3
12/18 22:30	28.8	↓-2.1
12/18 22:40	26.9	↓-1.9
12/18 22:50	25.2	↓-1.7
12/18 23:00	23.7	↓-1.5
12/18 23:10	22.4	↓-1.3
12/18 23:20	21.3	↓-1.1
12/18 23:30	20.4	↓-0.9
12/18 23:40	19.6	↓-0.8
12/18 23:50	19.1	↓-0.5