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In September 2027, the highest tide in St. Lawrence is on September 1 at 10:05 PM (1.06 m) and the lowest on September 1 at 3:33 PM (−1.00 m). The biggest range of the month, 2.06 m, is on September 1; the smallest, 0.85 m, on September 9.
Which days in September have the biggest tides in St. Lawrence?
Range of each day, coloured by spring and neap tides
Calendar
High and low tides in St. Lawrence, September 2027
🖨 Print or PDF| Day | High ▲ and low ▼ tide | Range | Moon | Sun |
|---|---|---|---|---|
| ▼3:17 AM −0.87 m▲9:38 AM 0.98 m▼3:33 PM −1.00 m▲10:05 PM 1.06 m | 2.1 | 6:31 AM · 7:54 PM | ||
| ▼3:56 AM −0.90 m▲10:24 AM 1.04 m▼4:18 PM −0.99 m▲10:51 PM 1.00 m | 2.0 | 6:33 AM · 7:52 PM | ||
| ▼4:33 AM −0.88 m▲11:09 AM 1.04 m▼5:01 PM −0.93 m▲11:35 PM 0.89 m | 2.0 | 6:34 AM · 7:50 PM | ||
| ▼5:08 AM −0.82 m▲11:54 AM 0.98 m▼5:44 PM −0.82 m | 1.8 | 6:35 AM · 7:48 PM | ||
| ▲12:19 AM 0.74 m▼5:45 AM −0.74 m▲12:40 PM 0.88 m▼6:28 PM −0.68 m | 1.6 | 6:37 AM · 7:46 PM | ||
| ▲1:04 AM 0.57 m▼6:23 AM −0.64 m▲1:28 PM 0.76 m▼7:17 PM −0.53 m | 1.4 | 6:38 AM · 7:44 PM | ||
| ▲1:52 AM 0.42 m▼7:07 AM −0.53 m▲2:22 PM 0.64 m▼8:18 PM −0.39 m | 1.2 | 6:39 AM · 7:42 PM | ||
| ▲2:48 AM 0.29 m▼8:02 AM −0.43 m▲3:27 PM 0.54 m▼9:42 PM −0.31 m | 1.0 | 6:41 AM · 7:40 PM | ||
| ▲4:00 AM 0.22 m▼9:17 AM −0.36 m▲4:45 PM 0.49 m▼11:12 PM −0.30 m | 0.8 | 6:42 AM · 7:38 PM | ||
| ▲5:22 AM 0.23 m▼10:47 AM −0.35 m▲6:00 PM 0.51 m | 0.9 | 6:43 AM · 7:36 PM | ||
| ▼12:16 AM −0.35 m▲6:30 AM 0.31 m▼12:01 PM −0.41 m▲6:59 PM 0.57 m | 1.0 | 6:44 AM · 7:34 PM | ||
| ▼1:02 AM −0.42 m▲7:21 AM 0.41 m▼12:55 PM −0.50 m▲7:45 PM 0.64 m | 1.1 | 6:46 AM · 7:32 PM | ||
| ▼1:39 AM −0.50 m▲8:03 AM 0.52 m▼1:39 PM −0.59 m▲8:24 PM 0.70 m | 1.3 | 6:47 AM · 7:30 PM | ||
| ▼2:11 AM −0.58 m▲8:39 AM 0.61 m▼2:16 PM −0.67 m▲8:59 PM 0.73 m | 1.4 | 6:48 AM · 7:28 PM | ||
| ▼2:40 AM −0.65 m▲9:11 AM 0.69 m▼2:51 PM −0.73 m▲9:30 PM 0.75 m | 1.5 | 6:50 AM · 7:26 PM | ||
| ▼3:08 AM −0.71 m▲9:41 AM 0.75 m▼3:24 PM −0.78 m▲9:59 PM 0.74 m | 1.5 | 6:51 AM · 7:24 PM | ||
| ▼3:37 AM −0.75 m▲10:11 AM 0.80 m▼3:58 PM −0.79 m▲10:28 PM 0.72 m | 1.6 | 6:52 AM · 7:22 PM | ||
| ▼4:07 AM −0.77 m▲10:42 AM 0.83 m▼4:32 PM −0.78 m▲10:59 PM 0.67 m | 1.6 | 6:53 AM · 7:20 PM | ||
| ▼4:38 AM −0.77 m▲11:16 AM 0.84 m▼5:09 PM −0.74 m▲11:32 PM 0.61 m | 1.6 | 6:55 AM · 7:18 PM | ||
| ▼5:12 AM −0.74 m▲11:53 AM 0.82 m▼5:50 PM −0.66 m | 1.6 | 6:56 AM · 7:16 PM | ||
| ▲12:10 AM 0.53 m▼5:49 AM −0.69 m▲12:36 PM 0.78 m▼6:36 PM −0.57 m | 1.5 | 6:57 AM · 7:14 PM | ||
| ▲12:54 AM 0.45 m▼6:33 AM −0.61 m▲1:27 PM 0.72 m▼7:34 PM −0.47 m | 1.3 | 6:59 AM · 7:12 PM | ||
| ▲1:49 AM 0.37 m▼7:29 AM −0.53 m▲2:29 PM 0.66 m▼8:52 PM −0.40 m | 1.2 | 7:00 AM · 7:10 PM | ||
| ▲2:57 AM 0.33 m▼8:46 AM −0.48 m▲3:43 PM 0.63 m▼10:28 PM −0.41 m | 1.1 | 7:01 AM · 7:08 PM | ||
| ▲4:18 AM 0.35 m▼10:22 AM −0.49 m▲5:04 PM 0.66 m▼11:43 PM −0.49 m | 1.1 | 7:02 AM · 7:06 PM | ||
| ▲5:39 AM 0.46 m▼11:45 AM −0.59 m▲6:16 PM 0.74 m | 1.3 | 7:04 AM · 7:04 PM | ||
| ▼12:40 AM −0.61 m▲6:45 AM 0.62 m▼12:49 PM −0.73 m▲7:17 PM 0.84 m | 1.6 | 7:05 AM · 7:02 PM | ||
| ▼1:27 AM −0.72 m▲7:40 AM 0.79 m▼1:43 PM −0.85 m▲8:09 PM 0.92 m | 1.8 | 7:06 AM · 7:00 PM | ||
| ▼2:08 AM −0.81 m▲8:29 AM 0.95 m▼2:31 PM −0.94 m▲8:57 PM 0.95 m | 1.9 | 7:08 AM · 6:58 PM | ||
| ▼2:46 AM −0.87 m▲9:16 AM 1.05 m▼3:15 PM −0.98 m▲9:43 PM 0.94 m | 2.0 | 7:09 AM · 6:56 PM |
Frequently asked questions
When is the highest tide in St. Lawrence in September 2027?
On September 1 at 10:05 PM, 1.06 m above mean sea level.
When is the lowest tide in St. Lawrence in September 2027?
On September 1 at 3:33 PM, −1.00 m.
Which days in September 2027 have spring tides in St. Lawrence?
September 1–4 and September 28–30.
Where does this data come from?
These tides are an astronomical prediction computed by the Tides Pro engine with tide models and harmonic constants, checked against the official predictions of CHS / SHC. How we validate them is in our methodology. Heights are above mean sea level. They do not include wind or air pressure: for navigation, use official publications.
And right now?
See today’s tide in St. Lawrence or carry it on your iPhone.