18 (金)	09:17	02:33	22:17	16:27
	90cm	56cm	70cm	53cm
長潮 出 06:51 入 15:45 出 11:32 入 -

コイセボイ（北海道）2026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	64.9	↓-1.0
12/18 00:10	64.0	↓-0.9
12/18 00:20	63.0	↓-1.0
12/18 00:30	62.1	↓-0.9
12/18 00:40	61.2	↓-0.9
12/18 00:50	60.4	↓-0.8
12/18 01:00	59.6	↓-0.8
12/18 01:10	58.9	↓-0.7
12/18 01:20	58.2	↓-0.7
12/18 01:30	57.6	↓-0.6
12/18 01:40	57.1	↓-0.5
12/18 01:50	56.7	↓-0.4
12/18 02:00	56.4	↓-0.3
12/18 02:10	56.1	↓-0.3
12/18 02:20	56.0	↓-0.1
12/18 02:30	55.9	↓-0.1	干潮
12/18 02:40	55.9	0
12/18 02:50	56.1	↑0.2
12/18 03:00	56.3	↑0.2
12/18 03:10	56.6	↑0.3
12/18 03:20	57.0	↑0.4
12/18 03:30	57.5	↑0.5
12/18 03:40	58.1	↑0.6
12/18 03:50	58.7	↑0.6
12/18 04:00	59.5	↑0.8
12/18 04:10	60.3	↑0.8
12/18 04:20	61.2	↑0.9
12/18 04:30	62.2	↑1.0
12/18 04:40	63.2	↑1.0
12/18 04:50	64.3	↑1.1
12/18 05:00	65.5	↑1.2
12/18 05:10	66.7	↑1.2
12/18 05:20	67.9	↑1.2
12/18 05:30	69.1	↑1.2
12/18 05:40	70.4	↑1.3
12/18 05:50	71.7	↑1.3
12/18 06:00	73.0	↑1.3
12/18 06:10	74.3	↑1.3
12/18 06:20	75.6	↑1.3
12/18 06:30	76.8	↑1.2
12/18 06:40	78.1	↑1.3
12/18 06:50	79.3	↑1.2
12/18 07:00	80.4	↑1.1
12/18 07:10	81.5	↑1.1
12/18 07:20	82.6	↑1.1
12/18 07:30	83.6	↑1.0
12/18 07:40	84.5	↑0.9
12/18 07:50	85.4	↑0.9
12/18 08:00	86.1	↑0.7
12/18 08:10	86.8	↑0.7
12/18 08:20	87.4	↑0.6
12/18 08:30	87.9	↑0.5
12/18 08:40	88.4	↑0.5
12/18 08:50	88.7	↑0.3
12/18 09:00	88.9	↑0.2
12/18 09:10	89.0	↑0.1	満潮
12/18 09:20	89.0	0
12/18 09:30	88.9	↓-0.1
12/18 09:40	88.7	↓-0.2
12/18 09:50	88.4	↓-0.3
12/18 10:00	88.1	↓-0.3
12/18 10:10	87.6	↓-0.5
12/18 10:20	87.0	↓-0.6
12/18 10:30	86.3	↓-0.7
12/18 10:40	85.5	↓-0.8
12/18 10:50	84.7	↓-0.8
12/18 11:00	83.8	↓-0.9
12/18 11:10	82.8	↓-1.0
12/18 11:20	81.7	↓-1.1
12/18 11:30	80.6	↓-1.1
12/18 11:40	79.4	↓-1.2
12/18 11:50	78.2	↓-1.2
12/18 12:00	76.9	↓-1.3
12/18 12:10	75.6	↓-1.3
12/18 12:20	74.3	↓-1.3
12/18 12:30	73.0	↓-1.3
12/18 12:40	71.6	↓-1.4	最大潮位差
12/18 12:50	70.3	↓-1.3
12/18 13:00	69.0	↓-1.3
12/18 13:10	67.6	↓-1.4	最大潮位差
12/18 13:20	66.3	↓-1.3
12/18 13:30	65.0	↓-1.3
12/18 13:40	63.8	↓-1.2
12/18 13:50	62.6	↓-1.2
12/18 14:00	61.4	↓-1.2
12/18 14:10	60.3	↓-1.1
12/18 14:20	59.3	↓-1.0
12/18 14:30	58.3	↓-1.0
12/18 14:40	57.4	↓-0.9
12/18 14:50	56.6	↓-0.8
12/18 15:00	55.8	↓-0.8
12/18 15:10	55.1	↓-0.7
12/18 15:20	54.5	↓-0.6
12/18 15:30	54.0	↓-0.5
12/18 15:40	53.5	↓-0.5
12/18 15:50	53.2	↓-0.3
12/18 16:00	52.9	↓-0.3
12/18 16:10	52.8	↓-0.1
12/18 16:20	52.7	↓-0.1	干潮
12/18 16:30	52.6	↓-0.1
12/18 16:40	52.7	↑0.1
12/18 16:50	52.9	↑0.2
12/18 17:00	53.1	↑0.2
12/18 17:10	53.4	↑0.3
12/18 17:20	53.8	↑0.4
12/18 17:30	54.2	↑0.4
12/18 17:40	54.7	↑0.5
12/18 17:50	55.2	↑0.5
12/18 18:00	55.8	↑0.6
12/18 18:10	56.4	↑0.6
12/18 18:20	57.1	↑0.7
12/18 18:30	57.8	↑0.7
12/18 18:40	58.5	↑0.7
12/18 18:50	59.3	↑0.8
12/18 19:00	60.0	↑0.7
12/18 19:10	60.8	↑0.8
12/18 19:20	61.6	↑0.8
12/18 19:30	62.3	↑0.7
12/18 19:40	63.1	↑0.8
12/18 19:50	63.8	↑0.7
12/18 20:00	64.5	↑0.7
12/18 20:10	65.2	↑0.7
12/18 20:20	65.8	↑0.6
12/18 20:30	66.4	↑0.6
12/18 20:40	67.0	↑0.6
12/18 20:50	67.5	↑0.5
12/18 21:00	68.0	↑0.5
12/18 21:10	68.4	↑0.4
12/18 21:20	68.7	↑0.3
12/18 21:30	69.0	↑0.3
12/18 21:40	69.3	↑0.3
12/18 21:50	69.5	↑0.2
12/18 22:00	69.6	↑0.1
12/18 22:10	69.7	↑0.1	満潮
12/18 22:20	69.7	0
12/18 22:30	69.6	↓-0.1
12/18 22:40	69.5	↓-0.1
12/18 22:50	69.4	↓-0.1
12/18 23:00	69.1	↓-0.3
12/18 23:10	68.9	↓-0.2
12/18 23:20	68.6	↓-0.3
12/18 23:30	68.2	↓-0.4
12/18 23:40	67.9	↓-0.3
12/18 23:50	67.5	↓-0.4