Temperatures in July
It's cool to moderate in July in Derry with an average temperature of 18°C. Temperatures this month range from a low of 17°C to a high of 20°C. At night, you can expect temperatures between 11°C and 14°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Derry in July. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of July
The month of July starts in Derry with mild temperatures, averaging around 18°C during the day and nights close to 12°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-July
By mid-July, the average daytime temperature rises to around 19°C, with nights close to 13°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of July
By the end of July, the average daytime temperature in Derry will be around 19°C, with nights close to 13°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
Precipitation in July
In July, there is an average of 88 mm of precipitation, spread over 17 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Across the whole month, the average precipitation chance is 55% per day. Though that seems frequent, 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 July for Derry. 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.
Derry in July |
London | ||
|---|---|---|---|
 Average Temperature |
18°C | 23°C | |
 High Temp |
20°C | 27°C | |
| Low Temp |
17°C | 21°C | |
 Total Precipitation |
88 mm | 52 mm | |
| Rainy Days |
17 days | 9 days | |
June
UV index
The UV index is a maximum of 6 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 July a good time to visit Derry?
Want nice weather? Then July is a great time to be in Derry. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Derry in July
With 27°C, Derry hit the highest temperature in the last 10 years in July 2021. The lowest daytime temperature in this month was 12°C in 2015. The extreme night temperatures ranged from a low of 6°C to a high of 18°C.
Check out the climate of Derry for all months and discover the best travel time
Daily Temperature in July in Derry
This chart shows the average daily temperatures, both day and night, for each day in July in Derry, 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 July in Derry
The chart below shows the average daily precipitation in July for Derry, 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 July, you can expect around 17 days of rain in Derry.
Daily UV Index in July in Derry
This chart shows the average daily UV index in July 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 July in Derry Over the Years
This chart shows the average temperature in July in Derry, measured in degrees Celsius, over the past years.
Total Precipitation in July in Derry Over the Years
This chart shows the average precipitation in July in Derry, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in July for Derry
Click on a specific day in July for detailed info on the typical weather on that day in Derry. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in July in Derry
Have you been to Derry in July?
Share your weather experience in July 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.
