21 (月)	12:41	21:02	-	-
	114cm	20cm	-	-
大潮 出 06:12 入 16:59 出 05:20 入 14:36

コイセボイ（北海道）2039年02月21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
2/21 00:00	43.5	↑1.4
2/21 00:10	44.9	↑1.4
2/21 00:20	46.3	↑1.4
2/21 00:30	47.6	↑1.3
2/21 00:40	48.9	↑1.3
2/21 00:50	50.1	↑1.2
2/21 01:00	51.3	↑1.2
2/21 01:10	52.5	↑1.2
2/21 01:20	53.5	↑1.0
2/21 01:30	54.6	↑1.1
2/21 01:40	55.5	↑0.9
2/21 01:50	56.5	↑1.0
2/21 02:00	57.3	↑0.8
2/21 02:10	58.1	↑0.8
2/21 02:20	58.8	↑0.7
2/21 02:30	59.5	↑0.7
2/21 02:40	60.1	↑0.6
2/21 02:50	60.6	↑0.5
2/21 03:00	61.2	↑0.6
2/21 03:10	61.6	↑0.4
2/21 03:20	62.0	↑0.4
2/21 03:30	62.4	↑0.4
2/21 03:40	62.8	↑0.4
2/21 03:50	63.1	↑0.3
2/21 04:00	63.4	↑0.3
2/21 04:10	63.6	↑0.2
2/21 04:20	63.9	↑0.3
2/21 04:30	64.2	↑0.3
2/21 04:40	64.5	↑0.3
2/21 04:50	64.8	↑0.3
2/21 05:00	65.1	↑0.3
2/21 05:10	65.4	↑0.3
2/21 05:20	65.7	↑0.3
2/21 05:30	66.1	↑0.4
2/21 05:40	66.6	↑0.5
2/21 05:50	67.0	↑0.4
2/21 06:00	67.6	↑0.6
2/21 06:10	68.1	↑0.5
2/21 06:20	68.8	↑0.7
2/21 06:30	69.5	↑0.7
2/21 06:40	70.3	↑0.8
2/21 06:50	71.1	↑0.8
2/21 07:00	72.0	↑0.9
2/21 07:10	73.0	↑1.0
2/21 07:20	74.0	↑1.0
2/21 07:30	75.2	↑1.2
2/21 07:40	76.3	↑1.1
2/21 07:50	77.6	↑1.3
2/21 08:00	78.9	↑1.3
2/21 08:10	80.3	↑1.4
2/21 08:20	81.7	↑1.4
2/21 08:30	83.2	↑1.5
2/21 08:40	84.8	↑1.6
2/21 08:50	86.3	↑1.5
2/21 09:00	87.9	↑1.6
2/21 09:10	89.6	↑1.7
2/21 09:20	91.2	↑1.6
2/21 09:30	92.9	↑1.7
2/21 09:40	94.5	↑1.6
2/21 09:50	96.2	↑1.7
2/21 10:00	97.8	↑1.6
2/21 10:10	99.4	↑1.6
2/21 10:20	101.0	↑1.6
2/21 10:30	102.6	↑1.6
2/21 10:40	104.0	↑1.4
2/21 10:50	105.4	↑1.4
2/21 11:00	106.7	↑1.3
2/21 11:10	108.0	↑1.3
2/21 11:20	109.1	↑1.1
2/21 11:30	110.2	↑1.1
2/21 11:40	111.1	↑0.9
2/21 11:50	111.9	↑0.8
2/21 12:00	112.6	↑0.7
2/21 12:10	113.1	↑0.5
2/21 12:20	113.5	↑0.4
2/21 12:30	113.7	↑0.2
2/21 12:40	113.8	↑0.1	満潮
2/21 12:50	113.7	↓-0.1
2/21 13:00	113.5	↓-0.2
2/21 13:10	113.0	↓-0.5
2/21 13:20	112.5	↓-0.5
2/21 13:30	111.7	↓-0.8
2/21 13:40	110.8	↓-0.9
2/21 13:50	109.7	↓-1.1
2/21 14:00	108.4	↓-1.3
2/21 14:10	107.0	↓-1.4
2/21 14:20	105.4	↓-1.6
2/21 14:30	103.7	↓-1.7
2/21 14:40	101.8	↓-1.9
2/21 14:50	99.7	↓-2.1
2/21 15:00	97.5	↓-2.2
2/21 15:10	95.2	↓-2.3
2/21 15:20	92.8	↓-2.4
2/21 15:30	90.2	↓-2.6
2/21 15:40	87.6	↓-2.6
2/21 15:50	84.8	↓-2.8
2/21 16:00	82.0	↓-2.8
2/21 16:10	79.1	↓-2.9
2/21 16:20	76.2	↓-2.9
2/21 16:30	73.2	↓-3.0
2/21 16:40	70.2	↓-3.0
2/21 16:50	67.1	↓-3.1	最大潮位差
2/21 17:00	64.1	↓-3.0
2/21 17:10	61.1	↓-3.0
2/21 17:20	58.1	↓-3.0
2/21 17:30	55.1	↓-3.0
2/21 17:40	52.2	↓-2.9
2/21 17:50	49.3	↓-2.9
2/21 18:00	46.5	↓-2.8
2/21 18:10	43.8	↓-2.7
2/21 18:20	41.2	↓-2.6
2/21 18:30	38.8	↓-2.4
2/21 18:40	36.4	↓-2.4
2/21 18:50	34.1	↓-2.3
2/21 19:00	32.0	↓-2.1
2/21 19:10	30.1	↓-1.9
2/21 19:20	28.3	↓-1.8
2/21 19:30	26.6	↓-1.7
2/21 19:40	25.1	↓-1.5
2/21 19:50	23.8	↓-1.3
2/21 20:00	22.7	↓-1.1
2/21 20:10	21.7	↓-1.0
2/21 20:20	20.9	↓-0.8
2/21 20:30	20.3	↓-0.6
2/21 20:40	19.9	↓-0.4
2/21 20:50	19.6	↓-0.3
2/21 21:00	19.5	↓-0.1	干潮
2/21 21:10	19.5	0
2/21 21:20	19.8	↑0.3
2/21 21:30	20.1	↑0.3
2/21 21:40	20.7	↑0.6
2/21 21:50	21.3	↑0.6
2/21 22:00	22.2	↑0.9
2/21 22:10	23.1	↑0.9
2/21 22:20	24.1	↑1.0
2/21 22:30	25.3	↑1.2
2/21 22:40	26.6	↑1.3
2/21 22:50	27.9	↑1.3
2/21 23:00	29.4	↑1.5
2/21 23:10	30.9	↑1.5
2/21 23:20	32.4	↑1.5
2/21 23:30	34.0	↑1.6
2/21 23:40	35.6	↑1.6
2/21 23:50	37.3	↑1.7