Water Temperature - St. Lawrence Ship Channel
Restricted use of data
- The Canadian Coast Guard (CCG) measures and uses water temperature data for its purposes, with no obligation to publish.
- The data is not validated or checked.
- The CCG can not be held responsible, directly or indirectly, for errors that may be contained in the data.
- The CCG does not claim in any way that this data is suitable for any job.
- Any publication of these data must first have been authorized and include a mention identifying their origin.
Data informations
Fields
-
Data type:
- Last collected data - hourly: seven last days of collected data by the thermograph buoy at the selected location. Temperatures are shown on a hourly basis. These data are not necessarily included in the average, the maximum and the minimum.
- Historical data - daily: historical temperature data at the selected location. Temperature are shown on a daily basis. Available data are from May through December.
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Location:
- The temperatures probes are positioned on navigation buoys. The availability of data is therefore dependent on the deployment of these buoys.
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The following table shows the available locations
Location Associated buoy Latitude Longitude Montréal M175 45.5766° -73.5021° Sorel S139 46.0627° -73.0504° Trois-Rivières C61 46.3292° -72.5382° Québec Q6 46.7867° -71.2243°
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Year:
- Year selection for historical data.
- The selection does not affect the Last collected data - hourly.
Data
-
Date
- Date/hour of data point.
- Eastern Standard Time.
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Minimum
- Daily historical minimum at the selected location.
- Computed from at least 5 years of data
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Observation
- Observed water temperature at the selected location.
- The water temperature data are taken at a depth of about 1.25m.
- The accuracy on the temperature readings is of the order of 0.25°C.
- The observations are not interpolated, erroneous data are omitted in the calculations and in the representation.
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Maximum
- Daily historical maximum at the selected location.
- Computed from at least 5 years of data
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Average
- Daily historical average at the selected location.
- Computed from at least 5 years of data
Température d'eau
Water temperature
| Date | Minimum [°C] | Observation [°C] | Maximum [°C] | Average [°C] |
|---|---|---|---|---|
| 2023-11-26 00:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 01:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 02:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 03:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 04:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 05:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 06:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 07:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 08:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 09:00 | 3.5 | 5.8 | 8.0 | 5.7 |
| 2023-11-26 10:00 | 3.5 | 5.8 | 8.0 | 5.7 |
| 2023-11-26 11:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 12:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 13:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 14:00 | 3.5 | 6.0 | 8.0 | 5.7 |
| 2023-11-26 15:00 | 3.5 | 6.0 | 8.0 | 5.7 |
| 2023-11-26 16:00 | 3.5 | 6.0 | 8.0 | 5.7 |
| 2023-11-26 17:00 | 3.5 | 6.0 | 8.0 | 5.7 |
| 2023-11-26 18:00 | 3.5 | 6.0 | 8.0 | 5.7 |
| 2023-11-26 19:00 | 3.5 | 6.0 | 8.0 | 5.7 |
| 2023-11-26 20:00 | 3.5 | 6.0 | 8.0 | 5.7 |
| 2023-11-26 21:00 | 3.5 | 6.0 | 8.0 | 5.7 |
| 2023-11-26 22:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-26 23:00 | 3.5 | 5.9 | 8.0 | 5.7 |
| 2023-11-27 00:00 | 3.5 | 5.9 | 7.9 | 5.6 |
| 2023-11-27 01:00 | 3.5 | 5.9 | 7.9 | 5.6 |
| 2023-11-27 02:00 | 3.5 | 5.9 | 7.9 | 5.6 |
| 2023-11-27 03:00 | 3.5 | 5.8 | 7.9 | 5.6 |
| 2023-11-27 04:00 | 3.5 | 5.8 | 7.9 | 5.6 |
| 2023-11-27 05:00 | 3.5 | 5.8 | 7.9 | 5.6 |
| 2023-11-27 06:00 | 3.5 | 5.8 | 7.9 | 5.6 |
| 2023-11-27 07:00 | 3.5 | 5.8 | 7.9 | 5.6 |
| 2023-11-27 08:00 | 3.5 | 5.8 | 7.9 | 5.6 |
| 2023-11-27 09:00 | 3.5 | 5.9 | 7.9 | 5.6 |
| 2023-11-27 10:00 | 3.5 | 5.9 | 7.9 | 5.6 |
| 2023-11-27 11:00 | 3.5 | 5.9 | 7.9 | 5.6 |
| 2023-11-27 12:00 | 3.5 | 5.9 | 7.9 | 5.6 |
| 2023-11-27 13:00 | 3.5 | 5.9 | 7.9 | 5.6 |
| 2023-11-27 14:00 | 3.5 | 6.0 | 7.9 | 5.6 |
| 2023-11-27 15:00 | 3.5 | 6.0 | 7.9 | 5.6 |
| 2023-11-27 16:00 | 3.5 | 6.0 | 7.9 | 5.6 |
| 2023-11-27 17:00 | 3.5 | 6.0 | 7.9 | 5.6 |
| 2023-11-27 18:00 | 3.5 | 6.1 | 7.9 | 5.6 |
| 2023-11-27 19:00 | 3.5 | 6.1 | 7.9 | 5.6 |
| 2023-11-27 20:00 | 3.5 | 6.0 | 7.9 | 5.6 |
| 2023-11-27 21:00 | 3.5 | 6.0 | 7.9 | 5.6 |
| 2023-11-27 22:00 | 3.5 | 6.0 | 7.9 | 5.6 |
| 2023-11-27 23:00 | 3.5 | 6.0 | 7.9 | 5.6 |
| 2023-11-28 00:00 | 3.6 | 5.9 | 7.7 | 5.4 |
| 2023-11-28 01:00 | 3.6 | 5.9 | 7.7 | 5.4 |
| 2023-11-28 02:00 | 3.6 | 5.9 | 7.7 | 5.4 |
| 2023-11-28 03:00 | 3.6 | 5.9 | 7.7 | 5.4 |
| 2023-11-28 04:00 | 3.6 | 5.8 | 7.7 | 5.4 |
| 2023-11-28 05:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 06:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 07:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 08:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 09:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 10:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 11:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 12:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 13:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 14:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 15:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 16:00 | 3.6 | 5.6 | 7.7 | 5.4 |
| 2023-11-28 17:00 | 3.6 | 5.7 | 7.7 | 5.4 |
| 2023-11-28 18:00 | 3.6 | 5.6 | 7.7 | 5.4 |
| 2023-11-28 19:00 | 3.6 | 5.5 | 7.7 | 5.4 |
| 2023-11-28 20:00 | 3.6 | 5.5 | 7.7 | 5.4 |
| 2023-11-28 21:00 | 3.6 | 5.4 | 7.7 | 5.4 |
| 2023-11-28 22:00 | 3.6 | 5.3 | 7.7 | 5.4 |
| 2023-11-28 23:00 | 3.6 | 5.3 | 7.7 | 5.4 |
| 2023-11-29 00:00 | 3.1 | 5.2 | 7.4 | 5.4 |
| 2023-11-29 01:00 | 3.1 | 5.3 | 7.4 | 5.4 |
| 2023-11-29 02:00 | 3.1 | 5.2 | 7.4 | 5.4 |
| 2023-11-29 03:00 | 3.1 | 5.2 | 7.4 | 5.4 |
| 2023-11-29 04:00 | 3.1 | 5.1 | 7.4 | 5.4 |
| 2023-11-29 05:00 | 3.1 | 5.1 | 7.4 | 5.4 |
| 2023-11-29 06:00 | 3.1 | 5.0 | 7.4 | 5.4 |
| 2023-11-29 07:00 | 3.1 | 5.0 | 7.4 | 5.4 |
| 2023-11-29 08:00 | 3.1 | 4.9 | 7.4 | 5.4 |
| 2023-11-29 09:00 | 3.1 | 4.9 | 7.4 | 5.4 |
| 2023-11-29 10:00 | 3.1 | 4.9 | 7.4 | 5.4 |
| 2023-11-29 11:00 | 3.1 | 4.9 | 7.4 | 5.4 |
| 2023-11-29 12:00 | 3.1 | 4.9 | 7.4 | 5.4 |
| 2023-11-29 13:00 | 3.1 | 4.9 | 7.4 | 5.4 |
| 2023-11-29 14:00 | 3.1 | 4.9 | 7.4 | 5.4 |
| 2023-11-29 15:00 | 3.1 | 5.0 | 7.4 | 5.4 |
| 2023-11-29 16:00 | 3.1 | 5.1 | 7.4 | 5.4 |
| 2023-11-29 17:00 | 3.1 | 5.1 | 7.4 | 5.4 |
| 2023-11-29 18:00 | 3.1 | 5.1 | 7.4 | 5.4 |
| 2023-11-29 19:00 | 3.1 | 5.1 | 7.4 | 5.4 |
| 2023-11-29 20:00 | 3.1 | 5.1 | 7.4 | 5.4 |
| 2023-11-29 21:00 | 3.1 | 5.0 | 7.4 | 5.4 |
| 2023-11-29 22:00 | 3.1 | 5.0 | 7.4 | 5.4 |
| 2023-11-29 23:00 | 3.1 | 5.0 | 7.4 | 5.4 |
| 2023-11-30 00:00 | 3.0 | 5.0 | 7.3 | 5.3 |
| 2023-11-30 01:00 | 3.0 | 5.0 | 7.3 | 5.3 |
| 2023-11-30 02:00 | 3.0 | 5.0 | 7.3 | 5.3 |
| 2023-11-30 03:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 04:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 05:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 06:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 07:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 08:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 09:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 10:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 11:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 12:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 13:00 | 3.0 | 4.9 | 7.3 | 5.3 |
| 2023-11-30 14:00 | 3.0 | 5.0 | 7.3 | 5.3 |
| 2023-11-30 15:00 | 3.0 | 5.0 | 7.3 | 5.3 |
| 2023-11-30 16:00 | 3.0 | 5.1 | 7.3 | 5.3 |
| 2023-11-30 17:00 | 3.0 | 5.2 | 7.3 | 5.3 |
| 2023-11-30 18:00 | 3.0 | 5.2 | 7.3 | 5.3 |
| 2023-11-30 19:00 | 3.0 | 5.1 | 7.3 | 5.3 |
| 2023-11-30 20:00 | 3.0 | 5.1 | 7.3 | 5.3 |
| 2023-11-30 21:00 | 3.0 | 5.1 | 7.3 | 5.3 |
| 2023-11-30 22:00 | 3.0 | 5.1 | 7.3 | 5.3 |
| 2023-11-30 23:00 | 3.0 | 5.1 | 7.3 | 5.3 |
| 2023-12-01 00:00 | 3.0 | 5.1 | 6.9 | 5.2 |
| 2023-12-01 01:00 | 3.0 | 5.0 | 6.9 | 5.2 |
| 2023-12-01 02:00 | 3.0 | 5.0 | 6.9 | 5.2 |
| 2023-12-01 03:00 | 3.0 | 5.0 | 6.9 | 5.2 |
| 2023-12-01 04:00 | 3.0 | 5.0 | 6.9 | 5.2 |
| 2023-12-01 05:00 | 3.0 | 5.0 | 6.9 | 5.2 |
| 2023-12-01 06:00 | 3.0 | 5.0 | 6.9 | 5.2 |
| 2023-12-01 07:00 | 3.0 | 5.1 | 6.9 | 5.2 |
| 2023-12-01 08:00 | 3.0 | 5.1 | 6.9 | 5.2 |
| 2023-12-01 09:00 | 3.0 | 5.1 | 6.9 | 5.2 |
| 2023-12-01 10:00 | 3.0 | 5.1 | 6.9 | 5.2 |
| 2023-12-01 11:00 | 3.0 | 5.1 | 6.9 | 5.2 |
| 2023-12-01 12:00 | 3.0 | 5.1 | 6.9 | 5.2 |
| 2023-12-01 13:00 | 3.0 | 5.1 | 6.9 | 5.2 |
| 2023-12-01 14:00 | 3.0 | 5.1 | 6.9 | 5.2 |
| 2023-12-01 15:00 | 3.0 | 5.2 | 6.9 | 5.2 |
| 2023-12-01 16:00 | 3.0 | 5.2 | 6.9 | 5.2 |
| 2023-12-01 17:00 | 3.0 | 5.3 | 6.9 | 5.2 |
| 2023-12-01 18:00 | 3.0 | 5.3 | 6.9 | 5.2 |
| 2023-12-01 19:00 | 3.0 | 5.3 | 6.9 | 5.2 |
| 2023-12-01 20:00 | 3.0 | 5.3 | 6.9 | 5.2 |
| 2023-12-01 21:00 | 3.0 | 5.2 | 6.9 | 5.2 |
| 2023-12-01 22:00 | 3.0 | 5.2 | 6.9 | 5.2 |
| 2023-12-01 23:00 | 3.0 | 5.2 | 6.9 | 5.2 |
| 2023-12-02 00:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 01:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 02:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 03:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 04:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 05:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 06:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 07:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 08:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 09:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 10:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 11:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 12:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 13:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 14:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-02 15:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 16:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 17:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 18:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 19:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 20:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 21:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 22:00 | 2.5 | 5.3 | 6.7 | 5.0 |
| 2023-12-02 23:00 | 2.5 | 5.2 | 6.7 | 5.0 |
| 2023-12-03 00:00 | 1.8 | 5.2 | 6.8 | 4.8 |
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