If you plan to visit Cardiff in October, the weather is typically alright, with an average high temperature of +15°C during the day and approximately 2 sunny days. Expect some rainy, though, as there are typically 20 rainy days in the month and around 119 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+15°C
Avg. max. temperature
-3°C
Min.
+26°C
Max.
119 mm
Total precipitation
82%
Avg. humidity
4 m/s
Avg. wind
2 ☀️
Sunny Days
8 ⛅️
Cloudy
20 🌦
Rainy
Our opinion: Cardiff has OK weather in October.
Average temperature in Cardiff in October
Here are the expected maximum, average and minimum temperatures in Cardiff for October based on the historical data.
Last Year
Historical Data
Going from a maximum of +22°C during the day to a minimum of +3°C during the night, the temperature in October averages around +16°C.
The average maximum temperature goes down 32% by the end of the month, compared with the beginning of the month, from +20°C to +14°C.
Is Cardiff warm or cold in October?
Cardiff is typically mild in October.
Maximum temperatures go down compared to the previous month from +18°C to +15°C. The minimum temperature also goes down from +12°C to +9°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how October is compared to other months in Cardiff:
Water temperature in Cardiff in October
Water in Cardiff in October is Cold. It varies from +14°C to +16°C, with an average of +15°C.Note that the air temperature is lower than the water temperature, averaging around +15°C.
In October, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Cardiff are reached in August, when the average sea temperature rises to +17°C. The coldest water temperatures are in March, with an average of +8°C.
Can you swim in Cardiff in October?
We would not recommend swimming in Cardiff in October, the water is very cold (+15°C on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in Cardiff in October
Cardiff weather looks like this, on average, in October and the surrounding months.
September
October
November
Avg. temperature
+18°C
+15°C
+11°C
Min. temperature
+4°C
-3°C
-7°C
Max. temperature
+29°C
+26°C
+17°C
Rainfall
84 mm
119 mm
103 mm
Wind
4 m/s
4 m/s
5 m/s
Avg. water temperature
+17°C
+15°C
+14°C
Humidity
79%
82%
84%
Air pressure
1015 HPa
1012 HPa
1012 HPa
Sunny days
3
2
2
Cloudy days
10
8
8
Rainy days
17
20
19
Snowy days
0
0
0
October weather is still as ok as in September.It’s getting colder in October. From +18°C in the day, the average maximum temperature lowers to +15°C.Prepare for more rain. Average rainfall goes from 84 mm to 119 mm.Humidity rises from 79% to 82%.The average wind speed doesn’t change much during October, staying around 4 m/s.The days becoming less sunny, going from 3 sunny days in September to 2 in October.
November brings much the same weather, it remains ok.
Wind speed in Cardiff in October based on historical data.
Last Year
Historical Data
The average wind speed is 4 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Cardiff is gradually increasing during October, going from 2 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during October in Cardiff based on historical data.
Last Year
Historical Data
Typically, there is a 68% chance of rain on an average day in October, with total rainfall of approximately 174 mm. The maximum amount of rainfall per day is around 23 mm, which is considered light rain.October is a pretty wet month with over 21 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
October is one of the rainiest months in Cardiff, here is a comparison with other months, total mm:
Cardiff wettest month is October, where a typical day has a 65% chance of precipitation and 119 mm of rainfall per day. April, on the other hand, is the driest month with a mere 50% chance of precipitation and 63 mm of rainfall per day.
How was the weather last October in Cardiff?
This is the weather in Cardiff in October 2023:
1 October
☁️
+20°C
2 October
🌧️
+17°C
3 October
☁️
+16°C
4 October
☁️
+17°C
5 October
☁️
+18°C
6 October
☁️
+19°C
7 October
☁️
+21°C
8 October
☁️
+22°C
9 October
☁️
+22°C
10 October
☁️
+18°C
11 October
🌧️
+18°C
12 October
🌧️
+15°C
13 October
🌧️
+18°C
14 October
☀️
+13°C
15 October
☁️
+12°C
16 October
☁️
+12°C
17 October
☁️
+15°C
18 October
🌧️
+14°C
19 October
🌧️
+17°C
20 October
🌧️
+14°C
21 October
🌧️
+13°C
22 October
☁️
+15°C
23 October
🌧️
+16°C
24 October
🌧️
+15°C
25 October
🌧️
+13°C
26 October
🌧️
+16°C
27 October
🌧️
+15°C
28 October
🌧️
+14°C
29 October
🌧️
+15°C
30 October
🌧️
+15°C
31 October
🌧️
+14°C
In October 2023 Cardiff had 1 sunny days, 13 cloudy days, and 17 rainy days. The average maximum temperature was +16°C, with an absolute maximum of +22°C and a minimum of +12°C. The average humidity was 87%, with a maximum of 100% and a minimum of 60%. The average wind speed was 4 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in October?
Climate Change over Years
This is how Cardiff climate have been changing during last 43 years period.
The climate in Cardiff in October has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+12°C) and the highest in 2022 (+16°C). The driest year was 2010 with only 736 mm of rainfall, and the wettest year was 2022 with 1906 mm.
FAQ
Frequently asked questions about the weather in Cardiff in October:
Is October a good time to visit Cardiff?
It’s always a good time to visit Cardiff, but the weather is changeable in October, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Cardiff in October?
October has mild temperatures in Cardiff. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in Cardiff in October?
Swimming in Cardiff in October is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Cardiff rainy in October?
Cardiff is often rainy in October. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Cardiff in October?
Usually, it’s not very sunny in Cardiff in October, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in United Kingdom
Check out the weather for other cities in United Kingdom.
For this page, we’ve looked at the typical weather in Cardiff, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
