1 (火)	07:49	01:53	-	16:39
	109cm	92cm	-	47cm
長潮 出 05:18 入 18:00 出 11:29 入 01:24

苫小牧（北海道）2031年04月1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
4/1 00:00	93.6	↓-0.2
4/1 00:10	93.3	↓-0.3
4/1 00:20	93.1	↓-0.2
4/1 00:30	92.8	↓-0.3
4/1 00:40	92.5	↓-0.3
4/1 00:50	92.2	↓-0.3
4/1 01:00	91.9	↓-0.3
4/1 01:10	91.7	↓-0.2
4/1 01:20	91.4	↓-0.3
4/1 01:30	91.3	↓-0.1
4/1 01:40	91.2	↓-0.1
4/1 01:50	91.1	↓-0.1	干潮
4/1 02:00	91.2	↑0.1
4/1 02:10	91.2	0
4/1 02:20	91.4	↑0.2
4/1 02:30	91.6	↑0.2
4/1 02:40	91.8	↑0.2
4/1 02:50	92.1	↑0.3
4/1 03:00	92.5	↑0.4
4/1 03:10	92.9	↑0.4
4/1 03:20	93.3	↑0.4
4/1 03:30	93.7	↑0.4
4/1 03:40	94.1	↑0.4
4/1 03:50	94.6	↑0.5
4/1 04:00	95.1	↑0.5
4/1 04:10	95.6	↑0.5
4/1 04:20	96.1	↑0.5
4/1 04:30	96.7	↑0.6
4/1 04:40	97.3	↑0.6
4/1 04:50	97.8	↑0.5
4/1 05:00	98.5	↑0.7
4/1 05:10	99.1	↑0.6
4/1 05:20	99.8	↑0.7
4/1 05:30	100.5	↑0.7
4/1 05:40	101.2	↑0.7
4/1 05:50	101.9	↑0.7
4/1 06:00	102.7	↑0.8
4/1 06:10	103.4	↑0.7
4/1 06:20	104.2	↑0.8
4/1 06:30	104.9	↑0.7
4/1 06:40	105.5	↑0.6
4/1 06:50	106.1	↑0.6
4/1 07:00	106.7	↑0.6
4/1 07:10	107.2	↑0.5
4/1 07:20	107.5	↑0.3
4/1 07:30	107.8	↑0.3
4/1 07:40	108.0	↑0.2	満潮
4/1 07:50	108.0	0
4/1 08:00	107.9	↓-0.1
4/1 08:10	107.7	↓-0.2
4/1 08:20	107.4	↓-0.3
4/1 08:30	107.0	↓-0.4
4/1 08:40	106.4	↓-0.6
4/1 08:50	105.8	↓-0.6
4/1 09:00	105.0	↓-0.8
4/1 09:10	104.2	↓-0.8
4/1 09:20	103.2	↓-1.0
4/1 09:30	102.3	↓-0.9
4/1 09:40	101.2	↓-1.1
4/1 09:50	100.1	↓-1.1
4/1 10:00	99.0	↓-1.1
4/1 10:10	97.8	↓-1.2
4/1 10:20	96.5	↓-1.3
4/1 10:30	95.2	↓-1.3
4/1 10:40	93.9	↓-1.3
4/1 10:50	92.5	↓-1.4
4/1 11:00	91.1	↓-1.4
4/1 11:10	89.7	↓-1.4
4/1 11:20	88.1	↓-1.6
4/1 11:30	86.6	↓-1.5
4/1 11:40	85.0	↓-1.6
4/1 11:50	83.3	↓-1.7
4/1 12:00	81.6	↓-1.7
4/1 12:10	79.8	↓-1.8
4/1 12:20	78.0	↓-1.8
4/1 12:30	76.2	↓-1.8
4/1 12:40	74.3	↓-1.9	最大潮位差
4/1 12:50	72.4	↓-1.9	最大潮位差
4/1 13:00	70.5	↓-1.9	最大潮位差
4/1 13:10	68.6	↓-1.9	最大潮位差
4/1 13:20	66.8	↓-1.8
4/1 13:30	65.0	↓-1.8
4/1 13:40	63.2	↓-1.8
4/1 13:50	61.5	↓-1.7
4/1 14:00	59.8	↓-1.7
4/1 14:10	58.2	↓-1.6
4/1 14:20	56.7	↓-1.5
4/1 14:30	55.3	↓-1.4
4/1 14:40	54.0	↓-1.3
4/1 14:50	52.7	↓-1.3
4/1 15:00	51.6	↓-1.1
4/1 15:10	50.5	↓-1.1
4/1 15:20	49.6	↓-0.9
4/1 15:30	48.8	↓-0.8
4/1 15:40	48.0	↓-0.8
4/1 15:50	47.4	↓-0.6
4/1 16:00	46.9	↓-0.5
4/1 16:10	46.5	↓-0.4
4/1 16:20	46.2	↓-0.3
4/1 16:30	46.0	↓-0.2	干潮
4/1 16:40	46.0	0
4/1 16:50	46.1	↑0.1
4/1 17:00	46.3	↑0.2
4/1 17:10	46.7	↑0.4
4/1 17:20	47.2	↑0.5
4/1 17:30	47.9	↑0.7
4/1 17:40	48.7	↑0.8
4/1 17:50	49.6	↑0.9
4/1 18:00	50.6	↑1.0
4/1 18:10	51.8	↑1.2
4/1 18:20	53.2	↑1.4
4/1 18:30	54.6	↑1.4
4/1 18:40	56.1	↑1.5
4/1 18:50	57.7	↑1.6
4/1 19:00	59.4	↑1.7
4/1 19:10	61.2	↑1.8
4/1 19:20	62.9	↑1.7
4/1 19:30	64.8	↑1.9	最大潮位差
4/1 19:40	66.6	↑1.8
4/1 19:50	68.4	↑1.8
4/1 20:00	70.2	↑1.8
4/1 20:10	72.0	↑1.8
4/1 20:20	73.8	↑1.8
4/1 20:30	75.5	↑1.7
4/1 20:40	77.2	↑1.7
4/1 20:50	78.8	↑1.6
4/1 21:00	80.3	↑1.5
4/1 21:10	81.8	↑1.5
4/1 21:20	83.2	↑1.4
4/1 21:30	84.6	↑1.4
4/1 21:40	85.9	↑1.3
4/1 21:50	87.2	↑1.3
4/1 22:00	88.4	↑1.2
4/1 22:10	89.5	↑1.1
4/1 22:20	90.6	↑1.1
4/1 22:30	91.6	↑1.0
4/1 22:40	92.6	↑1.0
4/1 22:50	93.5	↑0.9
4/1 23:00	94.3	↑0.8
4/1 23:10	95.0	↑0.7
4/1 23:20	95.7	↑0.7
4/1 23:30	96.3	↑0.6
4/1 23:40	96.9	↑0.6
4/1 23:50	97.3	↑0.4