Northern IrelandAverage weather for Derry in January
It's cold in January in Derry with an average temperature of 8°C. Temperatures this month range from a low of 6°C to a high of 9°C. At night, you can expect temperatures between 2°C and 6°C.
Start of January
The month of January starts in Derry with cold temps, averaging around 8°C during the day and nights around 4°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid January
By mid-January, daytime temps drop to around 7°C, with nights around 4°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of January
By the end of January, the average daytime temperature in Derry is around 9°C, while nighttime temps are about 5°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days. Wear a thick jacket, sweater, and long pants.
In January, there is an average of 104 mm of precipitation, spread over 21 days. Of the total precipitation, about 1,5 cm falls as snow in January. The wind speed is around 5 Bft, mostly coming from the Southwest.
Derry in January |
New York | ||
|---|---|---|---|
 Average temperature |
8°C | 5°C | |
 Max. temperature |
9°C | 11°C | |
| Min. temperature |
6°C | -5°C | |
 Total precipitation |
104 mm | 97 mm | |
| Rainy days |
21 days | 12 days | |
 Total snowfall |
1,5 cm | 16 cm | |
| Snowy days |
1 day | 8 days | |
December
UV index
The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Is January a good time to visit Derry?
Looking for sun? January isn’t a good month to be in Derry. There’s too much chance of rain this month.
Temperature records
With 14°C in 2020, Derry reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 2°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of -4°C to a highest value of 12°C.
Check out the climate of Derry for all months and discover the best travel time
Daily Temperature in January in Derry
This chart shows the average daily high and low temperatures in January for Derry, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in January in Derry
The chart below shows the average daily precipitation in January for Derry, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for January, you can expect about 21 days of precipitation in Derry.
Daily Snowfall in January in Derry
This chart shows the average daily snowfall in January in Derry, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in January.
Daily UV index in January in Derry
This chart shows the average daily UV index in January in Derry, 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 Derry over the years
This chart shows the average temperature in January in Derry, measured in degrees Celsius, over the past few years.
Total precipitation in January in Derry over the years
This chart shows the average precipitation in January in Derry, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in January in Derry per year
This chart shows the average snowfall in January in Derry, measured in centimeters, over the past few years.
Daily weather in January for Derry
Click on any day in January to get detailed info about the usual weather on that day in Derry. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Derry
Have you been to Derry in January?
Share your weather experience in January in Derry.
Average weather in Derry by month
Click on a month below to see detailed weather info for Derry. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
