18 (火)	11:09	20:02	-	-
	108cm	29cm	-	-
中潮 出 06:17 入 16:55 出 03:25 入 12:57

コイセボイ（北海道）2031年02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
2/18 00:00	50.6	↑0.7
2/18 00:10	51.3	↑0.7
2/18 00:20	52.0	↑0.7
2/18 00:30	52.7	↑0.7
2/18 00:40	53.3	↑0.6
2/18 00:50	54.0	↑0.7
2/18 01:00	54.6	↑0.6
2/18 01:10	55.2	↑0.6
2/18 01:20	55.7	↑0.5
2/18 01:30	56.3	↑0.6
2/18 01:40	56.8	↑0.5
2/18 01:50	57.4	↑0.6
2/18 02:00	57.9	↑0.5
2/18 02:10	58.4	↑0.5
2/18 02:20	58.9	↑0.5
2/18 02:30	59.4	↑0.5
2/18 02:40	59.9	↑0.5
2/18 02:50	60.5	↑0.6
2/18 03:00	61.0	↑0.5
2/18 03:10	61.6	↑0.6
2/18 03:20	62.1	↑0.5
2/18 03:30	62.7	↑0.6
2/18 03:40	63.3	↑0.6
2/18 03:50	64.0	↑0.7
2/18 04:00	64.6	↑0.6
2/18 04:10	65.3	↑0.7
2/18 04:20	66.1	↑0.8
2/18 04:30	66.8	↑0.7
2/18 04:40	67.7	↑0.9
2/18 04:50	68.5	↑0.8
2/18 05:00	69.4	↑0.9
2/18 05:10	70.3	↑0.9
2/18 05:20	71.3	↑1.0
2/18 05:30	72.3	↑1.0
2/18 05:40	73.4	↑1.1
2/18 05:50	74.5	↑1.1
2/18 06:00	75.6	↑1.1
2/18 06:10	76.8	↑1.2
2/18 06:20	78.0	↑1.2
2/18 06:30	79.3	↑1.3
2/18 06:40	80.5	↑1.2
2/18 06:50	81.9	↑1.4
2/18 07:00	83.2	↑1.3
2/18 07:10	84.5	↑1.3
2/18 07:20	85.9	↑1.4
2/18 07:30	87.3	↑1.4
2/18 07:40	88.6	↑1.3
2/18 07:50	90.0	↑1.4
2/18 08:00	91.4	↑1.4
2/18 08:10	92.8	↑1.4
2/18 08:20	94.1	↑1.3
2/18 08:30	95.4	↑1.3
2/18 08:40	96.7	↑1.3
2/18 08:50	97.9	↑1.2
2/18 09:00	99.1	↑1.2
2/18 09:10	100.3	↑1.2
2/18 09:20	101.3	↑1.0
2/18 09:30	102.4	↑1.1
2/18 09:40	103.3	↑0.9
2/18 09:50	104.2	↑0.9
2/18 10:00	104.9	↑0.7
2/18 10:10	105.6	↑0.7
2/18 10:20	106.2	↑0.6
2/18 10:30	106.7	↑0.5
2/18 10:40	107.1	↑0.4
2/18 10:50	107.4	↑0.3
2/18 11:00	107.5	↑0.1	満潮
2/18 11:10	107.6	↑0.1
2/18 11:20	107.5	↓-0.1
2/18 11:30	107.3	↓-0.2
2/18 11:40	107.0	↓-0.3
2/18 11:50	106.5	↓-0.5
2/18 12:00	105.9	↓-0.6
2/18 12:10	105.2	↓-0.7
2/18 12:20	104.4	↓-0.8
2/18 12:30	103.4	↓-1.0
2/18 12:40	102.3	↓-1.1
2/18 12:50	101.1	↓-1.2
2/18 13:00	99.7	↓-1.4
2/18 13:10	98.3	↓-1.4
2/18 13:20	96.7	↓-1.6
2/18 13:30	95.1	↓-1.6
2/18 13:40	93.3	↓-1.8
2/18 13:50	91.4	↓-1.9
2/18 14:00	89.5	↓-1.9
2/18 14:10	87.4	↓-2.1
2/18 14:20	85.3	↓-2.1
2/18 14:30	83.1	↓-2.2
2/18 14:40	80.9	↓-2.2
2/18 14:50	78.6	↓-2.3
2/18 15:00	76.3	↓-2.3
2/18 15:10	73.9	↓-2.4	最大潮位差
2/18 15:20	71.6	↓-2.3
2/18 15:30	69.2	↓-2.4	最大潮位差
2/18 15:40	66.8	↓-2.4	最大潮位差
2/18 15:50	64.4	↓-2.4	最大潮位差
2/18 16:00	62.0	↓-2.4	最大潮位差
2/18 16:10	59.6	↓-2.4	最大潮位差
2/18 16:20	57.3	↓-2.3
2/18 16:30	55.0	↓-2.3
2/18 16:40	52.8	↓-2.2
2/18 16:50	50.6	↓-2.2
2/18 17:00	48.5	↓-2.1
2/18 17:10	46.5	↓-2.0
2/18 17:20	44.6	↓-1.9
2/18 17:30	42.7	↓-1.9
2/18 17:40	41.0	↓-1.7
2/18 17:50	39.3	↓-1.7
2/18 18:00	37.8	↓-1.5
2/18 18:10	36.3	↓-1.5
2/18 18:20	35.0	↓-1.3
2/18 18:30	33.8	↓-1.2
2/18 18:40	32.8	↓-1.0
2/18 18:50	31.8	↓-1.0
2/18 19:00	31.0	↓-0.8
2/18 19:10	30.3	↓-0.7
2/18 19:20	29.7	↓-0.6
2/18 19:30	29.3	↓-0.4
2/18 19:40	29.0	↓-0.3
2/18 19:50	28.8	↓-0.2
2/18 20:00	28.7	↓-0.1	干潮
2/18 20:10	28.8	↑0.1
2/18 20:20	29.0	↑0.2
2/18 20:30	29.2	↑0.2
2/18 20:40	29.6	↑0.4
2/18 20:50	30.1	↑0.5
2/18 21:00	30.7	↑0.6
2/18 21:10	31.3	↑0.6
2/18 21:20	32.1	↑0.8
2/18 21:30	32.9	↑0.8
2/18 21:40	33.8	↑0.9
2/18 21:50	34.8	↑1.0
2/18 22:00	35.8	↑1.0
2/18 22:10	36.8	↑1.0
2/18 22:20	37.9	↑1.1
2/18 22:30	39.0	↑1.1
2/18 22:40	40.1	↑1.1
2/18 22:50	41.3	↑1.2
2/18 23:00	42.5	↑1.2
2/18 23:10	43.6	↑1.1
2/18 23:20	44.8	↑1.2
2/18 23:30	45.9	↑1.1
2/18 23:40	47.1	↑1.2
2/18 23:50	48.2	↑1.1