Last updated: June 24, 2025
In January, the average temperature in Setauket-East Setauket, United States hovers around 2°C (35°F). During this time, you might experience a chilly minimum of -15°C (6°F) and the occasional warm spell reaching up to 15°C (60°F). Expect about 80 mm (3.1 in) of precipitation spread over 8 days, contributing to a relatively high average humidity of 84%. Prepare accordingly!
In January in Setauket-East Setauket, the average temperature is 2°C (35°F). The maximum can reach 15°C (60°F) and the minimum can be as low as -15°C (6°F). Be prepared for a wide range of temperatures if you plan to travel during this month.
In Setauket-East Setauket in January, the precipitation amount is 80 mm (3.1 in) over a period of 8 days.
In Setauket-East Setauket in January, humidity is 84%. With an average temperature of 2°C (35°F), this humidity feels like an uncomfortable chill that penetrates your bones, making outdoor travel quite brisk and uninviting.
In Setauket-East Setauket in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Setauket-East Setauket, you can check the information here.
UV Risk Categories
Weather in Setauket-East Setauket varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Setauket-East Setauket, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 2°C (35°F) | 80 mm (3.1 inches) | 84% | moderate |
February Weather | 2°C (36°F) | 112 mm (4.4 inches) | 82% | moderate |
March Weather | 4°C (40°F) | 104 mm (4.1 inches) | 81% | high |
April Weather | 9°C (49°F) | 132 mm (5.2 inches) | 78% | very high |
May Weather | 14°C (58°F) | 119 mm (4.7 inches) | 69% | very high |
June Weather | 20°C (68°F) | 87 mm (3.4 inches) | 69% | very high |
July Weather | 24°C (76°F) | 131 mm (5.2 inches) | 62% | very high |
August Weather | 24°C (75°F) | 103 mm (4.0 inches) | 65% | very high |
September Weather | 21°C (70°F) | 94 mm (3.7 inches) | 68% | very high |
October Weather | 16°C (61°F) | 143 mm (5.6 inches) | 74% | high |
November Weather | 9°C (49°F) | 103 mm (4.0 inches) | 82% | moderate |
December Weather | 5°C (40°F) | 140 mm (5.5 inches) | 80% | low |