January weather forecastSag Harbor, NY
January
Weather in January
January, the same as December, is an icy winter month in Sag Harbor, New York, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 31.3°F (-0.4°C).Temperature
The coldest month is January, with an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 31.3°F (-0.4°C).Humidity
In Sag Harbor, the average relative humidity in January is 73%.Rainfall
In Sag Harbor, during January, the rain falls for 9.1 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 154.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Sag Harbor, in January, snow falls for 4.2 days, with typically accumulated 1.85" (47mm) of snow. In Sag Harbor, New York, during the entire year, snow falls for 13.9 days and aggregates up to 6.61" (168mm) of snow.Ocean temperature
In Sag Harbor, the average seawater temperature in January is 42.8°F (6°C).Note: With an efficient thermal swimsuit, one can navigate 42.8°F (6°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.
Daylight
In Sag Harbor, the average length of the day in January is 9h and 38min.On the first day of the month, sunrise is at 7:13 am and sunset at 4:31 pm. On the last day of January, sunrise is at 7:00 am and sunset at 5:04 pm EST.
Sunshine
The average sunshine in January is 4.9h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In January, the UV index of 2 transforms into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Sag Harbor, NY
- Average high temperature in January: 38.8°F
The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in January: 31.3°F
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in January
Sag Harbor, NY
- Average pressure in January: 30.03"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Sag Harbor, NY
- Average wind speed in January: 16mph
The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.4mph).
Average humidity in January
Sag Harbor, NY
- Average humidity in January: 73%
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in January
Sag Harbor, NY
- Average rainfall in January: 2.56"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in January
Sag Harbor, NY
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in January
Sag Harbor, NY
- Average snowfall in January: 1.85"
The month with the highest snowfall is March (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Sag Harbor, NY
- Average snowfall days in January: 4.2 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in January
Sag Harbor, NY
- Average sea temperature in January: 42.8°F
The best month for swimming (with the highest average sea temperature) is August (73.3°F).
The coldest month (with the lowest average sea temperature) is February (39.8°F).
Average daylight in January /
Average sunshine in January
Sag Harbor, NY
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in January
Sag Harbor, NY
- Average sunshine days in January: 15.3 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in January
Sag Harbor, NY
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in January
Sag Harbor, NY
- Average cloud cover in January: 48
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Sag Harbor, NY
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
