Temperatures in January
It's warm in January in Long Island with an average temperature of 25°C. Temperatures this month range from a low of 24°C to a high of 26°C. At night, you can expect temperatures between 23°C and 25°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Long Island in January. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of January
The month of January starts in Long Island with warm temperatures, averaging around 26°C during the day and nights close to 25°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-January
By mid-January, the average daytime temperature stays the same at 26°C, with nights close to 24°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of January
By the end of January, the average daytime temperature in Long Island will be around 26°C, with nights close to 24°C. A shower might show up, but overall the weather will be dry and sunny.
Precipitation in January
In January, there is an average of 47 mm of precipitation, spread over 11 days. The wind speed is around 5 Bft, mostly coming from the Southeast.
The average precipitation chance is 35% per day this month. The weather’s variable. There are also a few days with lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in January for Long Island. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Long Island in January |
UK | ||
|---|---|---|---|
 Average Temperature |
25°C | 8°C | |
 High Temp |
26°C | 9°C | |
| Low Temp |
24°C | 6°C | |
 Total Precipitation |
47 mm | 58 mm | |
| Rainy Days |
11 days | 9 days | |
December
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is January a good time to visit Long Island?
Want nice weather? Then January is a great time to be in Long Island. You’ll have pleasant temperatures and not too much rain this month.
Check out the climate of Long Island for all months and discover the best travel time
Daily Temperature in January in Long Island
This chart shows the average daily temperatures, both day and night, for each day in January in Long Island, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in January in Long Island
The chart below shows the average daily precipitation in January for Long Island, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for January, you can expect around 11 days of rain in Long Island.
Daily UV Index in January in Long Island
This chart shows the average daily UV index in January in Long Island, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Long Island Over the Years
This chart shows the average temperature in January in Long Island, measured in degrees Celsius, over the past years.
Total Precipitation in January in Long Island Over the Years
This chart shows the average precipitation in January in Long Island, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in January for Long Island
Click on a specific day in January for detailed info on the typical weather on that day in Long Island. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Long Island
Have you been to Long Island in January?
Share your weather experience in January in Long Island.
Average Weather in Long Island by Month
Click on a month below to see detailed weather info for Long Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Long Island for all months at once
