This year's long-range forecast for Cardiff reveals higher temperatures, peaking at 25°, indicative of a warming trend against the historical average.
Select a month and click on a day for more information
Tuesday
Sep 1
21° / 12°
Wednesday
Sep 2
20° / 13°
Thursday
Sep 3
20° / 13°
Friday
Sep 4
20° / 13°
Saturday
Sep 5
20° / 12°
Sunday
Sep 6
22° / 14°
Monday
Sep 7
21° / 14°
Tuesday
Sep 8
20° / 14°
Wednesday
Sep 9
19° / 13°
Thursday
Sep 10
18° / 9°
Friday
Sep 11
20° / 12°
Saturday
Sep 12
19° / 12°
Sunday
Sep 13
21° / 14°
Monday
Sep 14
21° / 14°
Tuesday
Sep 15
25° / 15°
Wednesday
Sep 16
22° / 15°
Thursday
Sep 17
18° / 12°
Friday
Sep 18
19° / 10°
Saturday
Sep 19
19° / 11°
Sunday
Sep 20
18° / 16°
Monday
Sep 21
18° / 12°
Tuesday
Sep 22
20° / 13°
Wednesday
Sep 23
18° / 15°
Thursday
Sep 24
17° / 11°
Friday
Sep 25
17° / 10°
Saturday
Sep 26
16° / 10°
Sunday
Sep 27
15° / 9°
Monday
Sep 28
15° / 9°
Tuesday
Sep 29
15° / 8°
Wednesday
Sep 30
16° / 9°
Cardiff 30 days weather forecast
Check out our estimated 30 days weather forecast for Cardiff, this data is based on the average weather in Cardiff in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Cardiff next to the desired date.
Weather in Cardiff for the next 30 days
Click on a day for an hourly weather forecast
Cardiff long range weather forecast - FAQ
Do you provide 30 days weather forecast for Cardiff?
You can see the next 30 weather forecast for Cardiff at the top of the page, the next 14 days (from today) are more accurate, while the other is based on average of previous years.
Can I see the weather forecast for a particular date in Cardiff?
Sure, you can select the date from the calendar above to view the forecast in Cardiff on that date.
How accurate is the long-range weather forecast for Cardiff?
Our long-range weather forecast for Cardiff is provided by using statistics from previous years. Although we cannot predict the weather months in advance, we can see an average.
Can I see a long-range weather forecast for different countries?
Yes, we provide a 14 day weather forecast and a long-range weather forecast for different countries and cities. You can search for a location in the search box at the top of the page.
More about the weather in Cardiff