Weather in Saint John: January
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Average day temperature: | 25.6°F |
| Average night temperature: | 20.1°F | |
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Sea water temperature: | 41.3°F |
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Number of sunny days: | 6 days |
| Day length: | 8.8 - 9.7 hours | |
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Number of days with precipitation: | 3 days |
| Precipitation totals: | 1.2 in. | |
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| Saint John |
temperature
| Saint John |
Air temperature in January, °F
| Day temperature | Night temperature |
The highest day temperature during January of 2025 was 39°F. At the same time the lowest night temperature was 4°F. Daily and nightly averages during January were 26.9°F and 20.9°F.
Sea water temperature in Saint John in January, °F
The average sea water temperature in January of 2025 was 39.8°F. The highest and lowest sea temperatures during the month were 41.9°F and 38.3°F.
| Sunny days | |
| Partly cloudy days | |
| Cloudy days |
Mostly all days in January are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in January, in.
Precipitation total value in Saint John in January is 1.2 in. Other months of the year show relatively similar values.
The average wind speed value in January is 8.1 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 3.6.
Best time for vacation in Saint John
Saint John on a weather map
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