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Weather in Cardiff for July 2025

Your guide to Cardiff weather in July - trends and predictions
  • In general, the average temperature in Cardiff at the beginning of July is 17.4 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 19.9 °C by the end of July.

  • Cardiff experiences an exceptionally high level of rainfall in July, with more than 24 rainy days on average.

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Average dry days
5
Dry days
Average rainy days
26
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/12°
Temperatures
Average wind speed
28 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Cardiff in July average weather

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Temperatures trend during July in Cardiff

See the weather trend as well as the moving average line

July weather day by day

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Date Weather Temperatures Rain UV More
1 Jul. Overcast
Overcast
18° /11° 0.3 mm 4
2 Jul. Overcast
Overcast
17° /10° 0.1 mm 4
3 Jul. Patchy rain possible
Patchy rain possible
17° /11° 1.2 mm 4
4 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
16° /10° 5.2 mm 4
5 Jul. Cloudy
Cloudy
17° /11° 5 mm 4
6 Jul. Patchy rain possible
Patchy rain possible
17° /10° 3.3 mm 4
7 Jul. Sunny
Sunny
20° /11° 0.9 mm 5
8 Jul. Moderate rain at times
Moderate rain at times
18° /12° 8.1 mm 4
9 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
19° /12° 7.6 mm 5
10 Jul. Moderate rain at times
Moderate rain at times
19° /11° 6.1 mm 4
11 Jul. Heavy rain at times
Heavy rain at times
18° /12° 4.1 mm 4
12 Jul. Patchy rain possible
Patchy rain possible
18° /11° 1.1 mm 4
13 Jul. Patchy rain possible
Patchy rain possible
18° /12° 1.9 mm 4
14 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
18° /11° 12.8 mm 4
15 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
17° /12° 15.2 mm 4
16 Jul. Moderate rain at times
Moderate rain at times
18° /13° 3.9 mm 4
17 Jul. Patchy rain possible
Patchy rain possible
19° /12° 1.8 mm 4
18 Jul. Moderate rain at times
Moderate rain at times
20° /12° 1.1 mm 5
19 Jul. Cloudy
Cloudy
21° /13° 0.1 mm 6
20 Jul. Patchy rain possible
Patchy rain possible
19° /12° 6.6 mm 4
21 Jul. Patchy rain possible
Patchy rain possible
18° /11° 0.3 mm 4
22 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
18° /12° 12.9 mm 4
23 Jul. Patchy rain possible
Patchy rain possible
19° /15° 2.8 mm 4
24 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
18° /12° 3.5 mm 4
25 Jul. Patchy rain possible
Patchy rain possible
19° /12° 0.9 mm 4
26 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
18° /10° 4.5 mm 4
27 Jul. Patchy rain possible
Patchy rain possible
19° /14° 0.9 mm 5
28 Jul. Patchy rain possible
Patchy rain possible
20° /13° 0.6 mm 5
29 Jul. Patchy rain possible
Patchy rain possible
21° /13° 0.6 mm 5
30 Jul. Moderate rain at times
Moderate rain at times
21° /14° 2.3 mm 5
31 Jul. Moderate rain at times
Moderate rain at times
21° /15° 1.6 mm 5
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Important Notice
Our weather forecast for Cardiff in July is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Cardiff forecast closer to your planned date for the most up-to-date weather information.

Cardiff in July - FAQ

What are the expected maximum and minimum temperatures in Cardiff during July?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Cardiff during July?
Significant rainfall exceeding 158.6 mm is expected in Cardiff during July, occurring over more than 26 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Cardiff during July?
The average wind speed in Cardiff during July is 28 km/h, suggesting breezy to windy conditions, depending on your activities.

July rainfall patterns in Cardiff

Explore the daily rainfall trends and prepare for Cardiffs July weather 💧

UV exposure in Cardiff during July

Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️

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Location coordinates Where is Cardiff?

Get accurate weather forecasts for Cardiff, located at latitude 51.48 and longitude -3.18. Stay updated with localized weather information tailored for Cardiff.

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