20 (土)	18:30	02:15	-	-
	109cm	27cm	-	-
小潮 出 05:42 入 16:30 出 21:41 入 12:40

コイセボイ（北海道）2057年10月20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
10/20 00:00	38.6	↓-1.9
10/20 00:10	36.9	↓-1.7
10/20 00:20	35.3	↓-1.6
10/20 00:30	33.9	↓-1.4
10/20 00:40	32.5	↓-1.4
10/20 00:50	31.4	↓-1.1
10/20 01:00	30.3	↓-1.1
10/20 01:10	29.4	↓-0.9
10/20 01:20	28.6	↓-0.8
10/20 01:30	28.0	↓-0.6
10/20 01:40	27.5	↓-0.5
10/20 01:50	27.1	↓-0.4
10/20 02:00	26.9	↓-0.2
10/20 02:10	26.8	↓-0.1	干潮
10/20 02:20	26.8	0
10/20 02:30	26.9	↑0.1
10/20 02:40	27.1	↑0.2
10/20 02:50	27.5	↑0.4
10/20 03:00	27.9	↑0.4
10/20 03:10	28.4	↑0.5
10/20 03:20	29.0	↑0.6
10/20 03:30	29.7	↑0.7
10/20 03:40	30.4	↑0.7
10/20 03:50	31.2	↑0.8
10/20 04:00	32.1	↑0.9
10/20 04:10	33.0	↑0.9
10/20 04:20	33.9	↑0.9
10/20 04:30	34.8	↑0.9
10/20 04:40	35.8	↑1.0
10/20 04:50	36.8	↑1.0
10/20 05:00	37.8	↑1.0
10/20 05:10	38.8	↑1.0
10/20 05:20	39.7	↑0.9
10/20 05:30	40.7	↑1.0
10/20 05:40	41.6	↑0.9
10/20 05:50	42.5	↑0.9
10/20 06:00	43.4	↑0.9
10/20 06:10	44.3	↑0.9
10/20 06:20	45.1	↑0.8
10/20 06:30	45.9	↑0.8
10/20 06:40	46.6	↑0.7
10/20 06:50	47.3	↑0.7
10/20 07:00	47.9	↑0.6
10/20 07:10	48.5	↑0.6
10/20 07:20	49.1	↑0.6
10/20 07:30	49.6	↑0.5
10/20 07:40	50.1	↑0.5
10/20 07:50	50.5	↑0.4
10/20 08:00	50.9	↑0.4
10/20 08:10	51.3	↑0.4
10/20 08:20	51.6	↑0.3
10/20 08:30	51.9	↑0.3
10/20 08:40	52.2	↑0.3
10/20 08:50	52.4	↑0.2
10/20 09:00	52.7	↑0.3
10/20 09:10	52.9	↑0.2
10/20 09:20	53.1	↑0.2
10/20 09:30	53.4	↑0.3
10/20 09:40	53.6	↑0.2
10/20 09:50	53.9	↑0.3
10/20 10:00	54.1	↑0.2
10/20 10:10	54.4	↑0.3
10/20 10:20	54.8	↑0.4
10/20 10:30	55.1	↑0.3
10/20 10:40	55.5	↑0.4
10/20 10:50	56.0	↑0.5
10/20 11:00	56.4	↑0.4
10/20 11:10	57.0	↑0.6
10/20 11:20	57.6	↑0.6
10/20 11:30	58.2	↑0.6
10/20 11:40	59.0	↑0.8
10/20 11:50	59.8	↑0.8
10/20 12:00	60.6	↑0.8
10/20 12:10	61.5	↑0.9
10/20 12:20	62.5	↑1.0
10/20 12:30	63.6	↑1.1
10/20 12:40	64.7	↑1.1
10/20 12:50	65.9	↑1.2
10/20 13:00	67.1	↑1.2
10/20 13:10	68.5	↑1.4
10/20 13:20	69.8	↑1.3
10/20 13:30	71.3	↑1.5
10/20 13:40	72.7	↑1.4
10/20 13:50	74.3	↑1.6
10/20 14:00	75.9	↑1.6
10/20 14:10	77.5	↑1.6
10/20 14:20	79.1	↑1.6
10/20 14:30	80.8	↑1.7
10/20 14:40	82.5	↑1.7
10/20 14:50	84.2	↑1.7
10/20 15:00	85.9	↑1.7
10/20 15:10	87.6	↑1.7
10/20 15:20	89.3	↑1.7
10/20 15:30	90.9	↑1.6
10/20 15:40	92.6	↑1.7
10/20 15:50	94.2	↑1.6
10/20 16:00	95.7	↑1.5
10/20 16:10	97.2	↑1.5
10/20 16:20	98.7	↑1.5
10/20 16:30	100.1	↑1.4
10/20 16:40	101.4	↑1.3
10/20 16:50	102.6	↑1.2
10/20 17:00	103.7	↑1.1
10/20 17:10	104.7	↑1.0
10/20 17:20	105.6	↑0.9
10/20 17:30	106.5	↑0.9
10/20 17:40	107.2	↑0.7
10/20 17:50	107.7	↑0.5
10/20 18:00	108.2	↑0.5
10/20 18:10	108.5	↑0.3
10/20 18:20	108.7	↑0.2	満潮
10/20 18:30	108.8	↑0.1	満潮
10/20 18:40	108.7	↓-0.1
10/20 18:50	108.5	↓-0.2
10/20 19:00	108.1	↓-0.4
10/20 19:10	107.6	↓-0.5
10/20 19:20	107.0	↓-0.6
10/20 19:30	106.2	↓-0.8
10/20 19:40	105.3	↓-0.9
10/20 19:50	104.3	↓-1.0
10/20 20:00	103.1	↓-1.2
10/20 20:10	101.9	↓-1.2
10/20 20:20	100.5	↓-1.4
10/20 20:30	99.0	↓-1.5
10/20 20:40	97.3	↓-1.7
10/20 20:50	95.6	↓-1.7
10/20 21:00	93.8	↓-1.8
10/20 21:10	91.9	↓-1.9
10/20 21:20	89.9	↓-2.0
10/20 21:30	87.9	↓-2.0
10/20 21:40	85.7	↓-2.2
10/20 21:50	83.6	↓-2.1
10/20 22:00	81.3	↓-2.3
10/20 22:10	79.1	↓-2.2
10/20 22:20	76.8	↓-2.3
10/20 22:30	74.5	↓-2.3
10/20 22:40	72.2	↓-2.3
10/20 22:50	69.8	↓-2.4	最大潮位差
10/20 23:00	67.5	↓-2.3
10/20 23:10	65.2	↓-2.3
10/20 23:20	62.9	↓-2.3
10/20 23:30	60.7	↓-2.2
10/20 23:40	58.5	↓-2.2
10/20 23:50	56.3	↓-2.2