18 (金)	12:20	20:42	-	-
	119cm	22cm	-	-
中潮 出 06:51 入 15:45 出 14:09 入 04:52

コイセボイ（北海道）2048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	53.0	↑1.2
12/18 00:10	54.1	↑1.1
12/18 00:20	55.2	↑1.1
12/18 00:30	56.3	↑1.1
12/18 00:40	57.2	↑0.9
12/18 00:50	58.2	↑1.0
12/18 01:00	59.0	↑0.8
12/18 01:10	59.8	↑0.8
12/18 01:20	60.5	↑0.7
12/18 01:30	61.2	↑0.7
12/18 01:40	61.8	↑0.6
12/18 01:50	62.3	↑0.5
12/18 02:00	62.7	↑0.4
12/18 02:10	63.1	↑0.4
12/18 02:20	63.5	↑0.4
12/18 02:30	63.8	↑0.3
12/18 02:40	64.0	↑0.2
12/18 02:50	64.3	↑0.3
12/18 03:00	64.4	↑0.1
12/18 03:10	64.6	↑0.2
12/18 03:20	64.7	↑0.1
12/18 03:30	64.8	↑0.1
12/18 03:40	64.9	↑0.1
12/18 03:50	65.0	↑0.1
12/18 04:00	65.1	↑0.1
12/18 04:10	65.2	↑0.1
12/18 04:20	65.4	↑0.2
12/18 04:30	65.5	↑0.1
12/18 04:40	65.7	↑0.2
12/18 04:50	66.0	↑0.3
12/18 05:00	66.2	↑0.2
12/18 05:10	66.6	↑0.4
12/18 05:20	67.0	↑0.4
12/18 05:30	67.4	↑0.4
12/18 05:40	68.0	↑0.6
12/18 05:50	68.6	↑0.6
12/18 06:00	69.2	↑0.6
12/18 06:10	70.0	↑0.8
12/18 06:20	70.8	↑0.8
12/18 06:30	71.7	↑0.9
12/18 06:40	72.7	↑1.0
12/18 06:50	73.8	↑1.1
12/18 07:00	75.0	↑1.2
12/18 07:10	76.3	↑1.3
12/18 07:20	77.6	↑1.3
12/18 07:30	79.0	↑1.4
12/18 07:40	80.5	↑1.5
12/18 07:50	82.0	↑1.5
12/18 08:00	83.6	↑1.6
12/18 08:10	85.3	↑1.7
12/18 08:20	87.0	↑1.7
12/18 08:30	88.8	↑1.8
12/18 08:40	90.6	↑1.8
12/18 08:50	92.4	↑1.8
12/18 09:00	94.3	↑1.9
12/18 09:10	96.1	↑1.8
12/18 09:20	97.9	↑1.8
12/18 09:30	99.8	↑1.9
12/18 09:40	101.6	↑1.8
12/18 09:50	103.4	↑1.8
12/18 10:00	105.1	↑1.7
12/18 10:10	106.8	↑1.7
12/18 10:20	108.4	↑1.6
12/18 10:30	109.9	↑1.5
12/18 10:40	111.3	↑1.4
12/18 10:50	112.7	↑1.4
12/18 11:00	113.9	↑1.2
12/18 11:10	115.0	↑1.1
12/18 11:20	116.0	↑1.0
12/18 11:30	116.9	↑0.9
12/18 11:40	117.6	↑0.7
12/18 11:50	118.1	↑0.5
12/18 12:00	118.5	↑0.4
12/18 12:10	118.8	↑0.3	満潮
12/18 12:20	118.8	0	満潮
12/18 12:30	118.7	↓-0.1
12/18 12:40	118.4	↓-0.3
12/18 12:50	118.0	↓-0.4
12/18 13:00	117.3	↓-0.7
12/18 13:10	116.5	↓-0.8
12/18 13:20	115.5	↓-1.0
12/18 13:30	114.3	↓-1.2
12/18 13:40	113.0	↓-1.3
12/18 13:50	111.5	↓-1.5
12/18 14:00	109.8	↓-1.7
12/18 14:10	107.9	↓-1.9
12/18 14:20	105.9	↓-2.0
12/18 14:30	103.7	↓-2.2
12/18 14:40	101.4	↓-2.3
12/18 14:50	99.0	↓-2.4
12/18 15:00	96.4	↓-2.6
12/18 15:10	93.8	↓-2.6
12/18 15:20	91.0	↓-2.8
12/18 15:30	88.1	↓-2.9
12/18 15:40	85.2	↓-2.9
12/18 15:50	82.2	↓-3.0
12/18 16:00	79.2	↓-3.0
12/18 16:10	76.1	↓-3.1
12/18 16:20	72.9	↓-3.2	最大潮位差
12/18 16:30	69.8	↓-3.1
12/18 16:40	66.7	↓-3.1
12/18 16:50	63.6	↓-3.1
12/18 17:00	60.5	↓-3.1
12/18 17:10	57.5	↓-3.0
12/18 17:20	54.5	↓-3.0
12/18 17:30	51.6	↓-2.9
12/18 17:40	48.7	↓-2.9
12/18 17:50	46.0	↓-2.7
12/18 18:00	43.4	↓-2.6
12/18 18:10	40.9	↓-2.5
12/18 18:20	38.5	↓-2.4
12/18 18:30	36.2	↓-2.3
12/18 18:40	34.1	↓-2.1
12/18 18:50	32.1	↓-2.0
12/18 19:00	30.3	↓-1.8
12/18 19:10	28.6	↓-1.7
12/18 19:20	27.2	↓-1.4
12/18 19:30	25.9	↓-1.3
12/18 19:40	24.7	↓-1.2
12/18 19:50	23.7	↓-1.0
12/18 20:00	23.0	↓-0.7
12/18 20:10	22.3	↓-0.7
12/18 20:20	21.9	↓-0.4
12/18 20:30	21.6	↓-0.3
12/18 20:40	21.5	↓-0.1	干潮
12/18 20:50	21.6	↑0.1
12/18 21:00	21.8	↑0.2
12/18 21:10	22.2	↑0.4
12/18 21:20	22.7	↑0.5
12/18 21:30	23.4	↑0.7
12/18 21:40	24.2	↑0.8
12/18 21:50	25.1	↑0.9
12/18 22:00	26.2	↑1.1
12/18 22:10	27.3	↑1.1
12/18 22:20	28.5	↑1.2
12/18 22:30	29.9	↑1.4
12/18 22:40	31.3	↑1.4
12/18 22:50	32.7	↑1.4
12/18 23:00	34.2	↑1.5
12/18 23:10	35.8	↑1.6
12/18 23:20	37.4	↑1.6
12/18 23:30	39.0	↑1.6
12/18 23:40	40.6	↑1.6
12/18 23:50	42.2	↑1.6