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

The lowest level of Saint John's temperatures is noted during January through March and December, averaging a high-temperature of 82.4°F (28°C).

Rainfall

In Saint John, in January, it is raining for 14 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, in Saint John, 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: For activities such as swimming and diving, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

In Saint John, United States Virgin Islands, the average length of the day in January is 11h and 11min.
On the first day of January in Saint John, sunrise is at 6:50 am and sunset at 5:53 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:12 pm AST.

Sunshine

The average sunshine in January in Saint John is 8h.

UV index

In Saint John, the average daily maximum UV index in January is 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 8 suggests these recommendations:
Ensure you're protected; unprotected eyes and skin can get hurt in moments. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.