21 (水)	00:37	09:08	-	-
	116cm	9cm	-	-
大潮 出 03:38 入 19:09 出 01:43 入 17:52 潮干狩り ◎ 06:55～11:41

コイセボイ（北海道）2028年06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
6/21 00:00	114.6	↑0.7
6/21 00:10	115.2	↑0.6
6/21 00:20	115.6	↑0.4
6/21 00:30	115.8	↑0.2	満潮
6/21 00:40	115.8	0
6/21 00:50	115.6	↓-0.2
6/21 01:00	115.3	↓-0.3
6/21 01:10	114.8	↓-0.5
6/21 01:20	114.0	↓-0.8
6/21 01:30	113.1	↓-0.9
6/21 01:40	112.0	↓-1.1
6/21 01:50	110.7	↓-1.3
6/21 02:00	109.2	↓-1.5
6/21 02:10	107.6	↓-1.6
6/21 02:20	105.7	↓-1.9
6/21 02:30	103.7	↓-2.0
6/21 02:40	101.5	↓-2.2
6/21 02:50	99.2	↓-2.3
6/21 03:00	96.7	↓-2.5
6/21 03:10	94.0	↓-2.7
6/21 03:20	91.2	↓-2.8
6/21 03:30	88.4	↓-2.8
6/21 03:40	85.4	↓-3.0
6/21 03:50	82.3	↓-3.1
6/21 04:00	79.1	↓-3.2
6/21 04:10	75.8	↓-3.3
6/21 04:20	72.5	↓-3.3
6/21 04:30	69.2	↓-3.3
6/21 04:40	65.8	↓-3.4	最大潮位差
6/21 04:50	62.4	↓-3.4	最大潮位差
6/21 05:00	59.0	↓-3.4	最大潮位差
6/21 05:10	55.6	↓-3.4	最大潮位差
6/21 05:20	52.3	↓-3.3
6/21 05:30	49.0	↓-3.3
6/21 05:40	45.7	↓-3.3
6/21 05:50	42.5	↓-3.2
6/21 06:00	39.4	↓-3.1
6/21 06:10	36.4	↓-3.0
6/21 06:20	33.5	↓-2.9
6/21 06:30	30.8	↓-2.7
6/21 06:40	28.1	↓-2.7
6/21 06:50	25.6	↓-2.5
6/21 07:00	23.3	↓-2.3
6/21 07:10	21.1	↓-2.2
6/21 07:20	19.0	↓-2.1
6/21 07:30	17.2	↓-1.8
6/21 07:40	15.5	↓-1.7
6/21 07:50	14.0	↓-1.5
6/21 08:00	12.7	↓-1.3
6/21 08:10	11.5	↓-1.2
6/21 08:20	10.6	↓-0.9
6/21 08:30	9.8	↓-0.8
6/21 08:40	9.2	↓-0.6
6/21 08:50	8.9	↓-0.3
6/21 09:00	8.6	↓-0.3	干潮
6/21 09:10	8.6	0
6/21 09:20	8.8	↑0.2
6/21 09:30	9.1	↑0.3
6/21 09:40	9.5	↑0.4
6/21 09:50	10.2	↑0.7
6/21 10:00	10.9	↑0.7
6/21 10:10	11.8	↑0.9
6/21 10:20	12.8	↑1.0
6/21 10:30	14.0	↑1.2
6/21 10:40	15.2	↑1.2
6/21 10:50	16.6	↑1.4
6/21 11:00	18.0	↑1.4
6/21 11:10	19.5	↑1.5
6/21 11:20	21.1	↑1.6
6/21 11:30	22.7	↑1.6
6/21 11:40	24.4	↑1.7
6/21 11:50	26.1	↑1.7
6/21 12:00	27.8	↑1.7
6/21 12:10	29.5	↑1.7
6/21 12:20	31.2	↑1.7
6/21 12:30	32.9	↑1.7
6/21 12:40	34.6	↑1.7
6/21 12:50	36.3	↑1.7
6/21 13:00	37.9	↑1.6
6/21 13:10	39.4	↑1.5
6/21 13:20	40.9	↑1.5
6/21 13:30	42.4	↑1.5
6/21 13:40	43.8	↑1.4
6/21 13:50	45.1	↑1.3
6/21 14:00	46.3	↑1.2
6/21 14:10	47.5	↑1.2
6/21 14:20	48.6	↑1.1
6/21 14:30	49.6	↑1.0
6/21 14:40	50.5	↑0.9
6/21 14:50	51.4	↑0.9
6/21 15:00	52.1	↑0.7
6/21 15:10	52.8	↑0.7
6/21 15:20	53.5	↑0.7
6/21 15:30	54.0	↑0.5
6/21 15:40	54.5	↑0.5
6/21 15:50	55.0	↑0.5
6/21 16:00	55.4	↑0.4
6/21 16:10	55.7	↑0.3
6/21 16:20	56.0	↑0.3
6/21 16:30	56.3	↑0.3
6/21 16:40	56.6	↑0.3
6/21 16:50	56.8	↑0.2
6/21 17:00	57.1	↑0.3
6/21 17:10	57.3	↑0.2
6/21 17:20	57.6	↑0.3
6/21 17:30	57.8	↑0.2
6/21 17:40	58.1	↑0.3
6/21 17:50	58.5	↑0.4
6/21 18:00	58.9	↑0.4
6/21 18:10	59.3	↑0.4
6/21 18:20	59.8	↑0.5
6/21 18:30	60.4	↑0.6
6/21 18:40	61.0	↑0.6
6/21 18:50	61.7	↑0.7
6/21 19:00	62.5	↑0.8
6/21 19:10	63.4	↑0.9
6/21 19:20	64.3	↑0.9
6/21 19:30	65.4	↑1.1
6/21 19:40	66.6	↑1.2
6/21 19:50	67.8	↑1.2
6/21 20:00	69.2	↑1.4
6/21 20:10	70.6	↑1.4
6/21 20:20	72.1	↑1.5
6/21 20:30	73.7	↑1.6
6/21 20:40	75.5	↑1.8
6/21 20:50	77.2	↑1.7
6/21 21:00	79.1	↑1.9
6/21 21:10	81.0	↑1.9
6/21 21:20	83.0	↑2.0
6/21 21:30	85.0	↑2.0
6/21 21:40	87.1	↑2.1
6/21 21:50	89.3	↑2.2
6/21 22:00	91.4	↑2.1
6/21 22:10	93.6	↑2.2
6/21 22:20	95.7	↑2.1
6/21 22:30	97.9	↑2.2
6/21 22:40	100.0	↑2.1
6/21 22:50	102.1	↑2.1
6/21 23:00	104.1	↑2.0
6/21 23:10	106.1	↑2.0
6/21 23:20	108.0	↑1.9
6/21 23:30	109.8	↑1.8
6/21 23:40	111.6	↑1.8
6/21 23:50	113.2	↑1.6