Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Saint John notes the coldest temperatures in January, with a high average of -1.9°C (28.6°F) and a low of -8.6°C (16.5°F).Humidity
January and February, with an average relative humidity of 85%, are the most humid months.Rainfall
In Saint John, during January, the rain falls for 5.6 days and regularly aggregates up to 39mm (1.54") of precipitation. Throughout the year, there are 122.4 rainfall days, and 390mm (15.35") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. January is the month with the most snowfall in Saint John. Snow falls for 7.6 days and accumulates 40mm (1.57") of snow.Sea temperature
In January, the average sea temperature is 4.8°C (40.6°F).Note: Under swimming conditions, this represents an immediate threat to life. Control over breathing is lost instantaneously, complicating thought processes. A specialized swimsuit is indispensable to conserve thermal energy.
Daylight
In January, the average length of the day is 9h and 13min.On the first day of January, sunrise is at 8:03 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:29 pm AST.
Sunshine
The average sunshine in January in Saint John is 3.8h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Saint John. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 during January translates into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Saint John?
How cold is it in Saint John in January?
What is the most humid month in Saint John?
What is the average humidity in January in Saint John?
How much does it rain in Saint John in January?
When does it snow the most in Saint John?
How much does it snow in Saint John in January?
What is the sea temperature in January in Saint John?
What is the average length of the day in January in Saint John?
When is the sunrise / sunset in January in Saint John?
How long on average sun shines in January in Saint John?
What is the month with the lowest UV index in Saint John?
What is the UV index intensity in January in Saint John?
Average temperature in January
Saint John, Canada
- Average high temperature in January: -1.9°C
The warmest month (with the highest average high temperature) is August (21.5°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in January: -8.6°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-8.6°C).
Average pressure in January
Saint John, Canada
- Average pressure in January: 1013.3mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).
Average wind speed in January
Saint John, Canada
- Average wind speed in January: 19.9km/h
The windiest month (with the highest average wind speed) is January (19.9km/h).
The calmest month (with the lowest average wind speed) is August (12.3km/h).
Average humidity in January
Saint John, Canada
- Average humidity in January: 85%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are October and November (80%).
Average rainfall in January
Saint John, Canada
- Average rainfall in January: 39mm
The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is August (22mm).
Average rainfall days in January
Saint John, Canada
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in January
Saint John, Canada
- Average snowfall in January: 40mm
The month with the highest snowfall is January (40mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in January
Saint John, Canada
- Average snowfall days in January: 7.6 days
The month with the highest number of snowfall days is March (9.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in January
Saint John, Canada
- Average sea temperature in January: 4.8°C
The best month for swimming (with the highest average sea temperature) is August (13.3°C).
The coldest month (with the lowest average sea temperature) is March (2.9°C).
Average daylight in January /
Average sunshine in January
Saint John, Canada
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in January
Saint John, Canada
- Average sunshine days in January: 18.9 days
The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in January
Saint John, Canada
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in January
Saint John, Canada
- Average cloud cover in January: 60
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in January
Saint John, Canada
- Average visibility in January: 9km
The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (9km).
Saint John, Canada
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