January weather forecast
Saint John, VI

Saint John ushers in the year with typically maritime tropical weather, featuring warm temperatures, ample sun, moderate rain. Moving from December, the city witnesses little fluctuation, both in the degree of temperatures and rainfall. A notable feature of January weather is the occurrence of 14 rainy days with 2.7" (69mm) of precipitation. The weather tends to be relatively consistent throughout January, offering locals and visitors a predictable climate for starting the new year.

Temperature

Saint John experiences its coldest period in January through March and December, averaging a high-temperature of 82.4°F (28°C).

Rainfall

In Saint John, during January, the rain falls for 14 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 156 rainfall days, and 49.69" (1262mm) of precipitation is accumulated.

Ocean temperature

January through April, with an average ocean temperature of 78.8°F (26°C), are months with the coldest seawater.
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

The average length of the day in January is 11h and 11min.
On the first day of the month, sunrise is at 6:50 am and sunset at 5:53 pm. On the last day of January, sunrise is at 6:52 am and sunset at 6:12 pm AST.

Sunshine

In Saint John, the average sunshine in January is 8h.

UV index

In January, the average daily maximum UV index in Saint John is 8. A UV Index reading of 8 to 10 represents a very high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 8 in January translates into the following instructions:
Always take precautions; unprotected eyes and skin can be damaged rapidly. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Watch out! Reflections from sand and water can surge UV radiation exposure.