18 (木)	12:33	21:02	-	-
	123cm	17cm	-	-
大潮 出 06:51 入 15:45 出 05:20 入 13:51

コイセボイ（北海道）2025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	48.3	↑1.4
12/18 00:10	49.8	↑1.5
12/18 00:20	51.2	↑1.4
12/18 00:30	52.5	↑1.3
12/18 00:40	53.8	↑1.3
12/18 00:50	55.0	↑1.2
12/18 01:00	56.2	↑1.2
12/18 01:10	57.3	↑1.1
12/18 01:20	58.3	↑1.0
12/18 01:30	59.3	↑1.0
12/18 01:40	60.2	↑0.9
12/18 01:50	61.0	↑0.8
12/18 02:00	61.7	↑0.7
12/18 02:10	62.4	↑0.7
12/18 02:20	63.0	↑0.6
12/18 02:30	63.6	↑0.6
12/18 02:40	64.1	↑0.5
12/18 02:50	64.5	↑0.4
12/18 03:00	64.9	↑0.4
12/18 03:10	65.2	↑0.3
12/18 03:20	65.5	↑0.3
12/18 03:30	65.8	↑0.3
12/18 03:40	66.0	↑0.2
12/18 03:50	66.2	↑0.2
12/18 04:00	66.4	↑0.2
12/18 04:10	66.6	↑0.2
12/18 04:20	66.8	↑0.2
12/18 04:30	67.0	↑0.2
12/18 04:40	67.2	↑0.2
12/18 04:50	67.5	↑0.3
12/18 05:00	67.8	↑0.3
12/18 05:10	68.1	↑0.3
12/18 05:20	68.5	↑0.4
12/18 05:30	68.9	↑0.4
12/18 05:40	69.4	↑0.5
12/18 05:50	69.9	↑0.5
12/18 06:00	70.5	↑0.6
12/18 06:10	71.2	↑0.7
12/18 06:20	72.0	↑0.8
12/18 06:30	72.8	↑0.8
12/18 06:40	73.7	↑0.9
12/18 06:50	74.7	↑1.0
12/18 07:00	75.8	↑1.1
12/18 07:10	77.0	↑1.2
12/18 07:20	78.2	↑1.2
12/18 07:30	79.6	↑1.4
12/18 07:40	81.0	↑1.4
12/18 07:50	82.5	↑1.5
12/18 08:00	84.1	↑1.6
12/18 08:10	85.7	↑1.6
12/18 08:20	87.4	↑1.7
12/18 08:30	89.1	↑1.7
12/18 08:40	90.9	↑1.8
12/18 08:50	92.8	↑1.9
12/18 09:00	94.7	↑1.9
12/18 09:10	96.5	↑1.8
12/18 09:20	98.5	↑2.0
12/18 09:30	100.4	↑1.9
12/18 09:40	102.3	↑1.9
12/18 09:50	104.1	↑1.8
12/18 10:00	106.0	↑1.9
12/18 10:10	107.8	↑1.8
12/18 10:20	109.6	↑1.8
12/18 10:30	111.3	↑1.7
12/18 10:40	112.9	↑1.6
12/18 10:50	114.4	↑1.5
12/18 11:00	115.8	↑1.4
12/18 11:10	117.2	↑1.4
12/18 11:20	118.4	↑1.2
12/18 11:30	119.5	↑1.1
12/18 11:40	120.4	↑0.9
12/18 11:50	121.2	↑0.8
12/18 12:00	121.8	↑0.6
12/18 12:10	122.3	↑0.5
12/18 12:20	122.6	↑0.3
12/18 12:30	122.8	↑0.2	満潮
12/18 12:40	122.7	↓-0.1
12/18 12:50	122.5	↓-0.2
12/18 13:00	122.1	↓-0.4
12/18 13:10	121.5	↓-0.6
12/18 13:20	120.7	↓-0.8
12/18 13:30	119.7	↓-1.0
12/18 13:40	118.5	↓-1.2
12/18 13:50	117.1	↓-1.4
12/18 14:00	115.6	↓-1.5
12/18 14:10	113.8	↓-1.8
12/18 14:20	111.9	↓-1.9
12/18 14:30	109.8	↓-2.1
12/18 14:40	107.6	↓-2.2
12/18 14:50	105.2	↓-2.4
12/18 15:00	102.6	↓-2.6
12/18 15:10	99.9	↓-2.7
12/18 15:20	97.1	↓-2.8
12/18 15:30	94.2	↓-2.9
12/18 15:40	91.1	↓-3.1
12/18 15:50	88.0	↓-3.1
12/18 16:00	84.8	↓-3.2
12/18 16:10	81.5	↓-3.3
12/18 16:20	78.2	↓-3.3
12/18 16:30	74.8	↓-3.4	最大潮位差
12/18 16:40	71.5	↓-3.3
12/18 16:50	68.1	↓-3.4	最大潮位差
12/18 17:00	64.7	↓-3.4	最大潮位差
12/18 17:10	61.3	↓-3.4	最大潮位差
12/18 17:20	58.0	↓-3.3
12/18 17:30	54.7	↓-3.3
12/18 17:40	51.5	↓-3.2
12/18 17:50	48.4	↓-3.1
12/18 18:00	45.3	↓-3.1
12/18 18:10	42.4	↓-2.9
12/18 18:20	39.5	↓-2.9
12/18 18:30	36.8	↓-2.7
12/18 18:40	34.3	↓-2.5
12/18 18:50	31.8	↓-2.5
12/18 19:00	29.6	↓-2.2
12/18 19:10	27.5	↓-2.1
12/18 19:20	25.5	↓-2.0
12/18 19:30	23.7	↓-1.8
12/18 19:40	22.1	↓-1.6
12/18 19:50	20.7	↓-1.4
12/18 20:00	19.5	↓-1.2
12/18 20:10	18.5	↓-1.0
12/18 20:20	17.6	↓-0.9
12/18 20:30	17.0	↓-0.6
12/18 20:40	16.5	↓-0.5
12/18 20:50	16.2	↓-0.3
12/18 21:00	16.1	↓-0.1	干潮
12/18 21:10	16.2	↑0.1
12/18 21:20	16.4	↑0.2
12/18 21:30	16.8	↑0.4
12/18 21:40	17.4	↑0.6
12/18 21:50	18.1	↑0.7
12/18 22:00	18.9	↑0.8
12/18 22:10	19.9	↑1.0
12/18 22:20	21.0	↑1.1
12/18 22:30	22.3	↑1.3
12/18 22:40	23.6	↑1.3
12/18 22:50	25.0	↑1.4
12/18 23:00	26.5	↑1.5
12/18 23:10	28.1	↑1.6
12/18 23:20	29.7	↑1.6
12/18 23:30	31.4	↑1.7
12/18 23:40	33.1	↑1.7
12/18 23:50	34.8	↑1.7