Temperatures in July
It's hot in July in Cardiff with an average temperature of 31°C. Temperatures this month range from a low of 26°C to a high of 36°C. At night, you can expect temperatures between 11°C and 15°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Cardiff 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 Cardiff with hot temperatures, averaging around 30°C during the day and nights close to 14°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-July
By mid-July, the average daytime temperature rises to around 31°C, with nights close to 13°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
Temperatures vary between day and night, so it’s smart to wear layers.
End of July
By the end of July, the average daytime temperature in Cardiff will be around 34°C, with nights close to 14°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
As it gets cooler in the evening, it’s best to wear layers.
Precipitation in July
In July, there is an average of 35 mm of precipitation, spread over 3 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
The average chance of precipitation is only 9% in July.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in July for Cardiff. 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.
Cardiff in July |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 23°C | |
 High Temp |
36°C | 27°C | |
| Low Temp |
26°C | 21°C | |
 Total Precipitation |
35 mm | 52 mm | |
| Rainy Days |
3 days | 9 days | |
June
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is July a good time to visit Cardiff?
July is a great month to be in Cardiff for sunny weather. You’ll get high temperatures and not too much rain this month.
Temperature records for Cardiff in July
With 42°C, Cardiff hit the highest temperature in the last 10 years in July 2015. The lowest daytime temperature in this month was 14°C in 2016. The extreme night temperatures ranged from a low of 6°C to a high of 19°C.
Check out the climate of Cardiff for all months and discover the best travel time
Daily Temperature in July in Cardiff
This chart shows the average daily temperatures, both day and night, for each day in July in Cardiff, 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 Cardiff
The chart below shows the average daily precipitation in July for Cardiff, 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 3 days of rain in Cardiff.
Daily UV Index in July in Cardiff
This chart shows the average daily UV index in July in Cardiff, 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 Cardiff Over the Years
This chart shows the average temperature in July in Cardiff, measured in degrees Celsius, over the past years.
Total Precipitation in July in Cardiff Over the Years
This chart shows the average precipitation in July in Cardiff, 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 Cardiff
Click on a specific day in July for detailed info on the typical weather on that day in Cardiff. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in July in Cardiff
Have you been to Cardiff in July?
Share your weather experience in July in Cardiff.
Average Weather in Cardiff by Month
Click on a month below to see detailed weather info for Cardiff. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
