Cardiff Weather in October
Cardiff in October sees moderate daytime temperatures of 15°C (59°F) and nighttime lows of 10°C (50°F). Rainfall is fairly high this month at around 119 mm (4.7 in), so pack a rain jacket to stay dry.
Rainfall in Cardiff in October
Climate statistics over the past 30 years suggest around 18 days of rain, with 119 mm (4.7 in) average for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Cardiff in October
In October, expect moderate temperatures in Cardiff, with highs of 15°C (59°F) and lows of 10°C (50°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Cardiff in October
The area experiences a moderate amount of sunshine, with approximately 102 hours of sunlight expected. This means a decent mix of sun and overcast.
Wind Speed in Cardiff in October
October has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.
Average water temperature in October
The water is 14°C (57°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Cardiff.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our Cardiff's climate page.
Cardiff Temperature in October
Min Temperature
10°C (50°F)
Max Temperature
15°C (59°F)
Water Temperature
14°C (57°F)
Chance of Rain
61%
Precipitation
119 mm (4.7 in)
Rainy days
18 days
Humidity
85%
Windspeed
5 m/s (10 knots)
Sunshine
102 hours
Percentage Sunshine
31%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cardiff typically stay consistent throughout October, with daily highs averaging around 15°C (59°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Cardiff in October
Browse day-by-day weather records for Cardiff spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cardiff historical weather extremes in October
Based on weather observations in Cardiff between 1976 and 2025, these are the recorded extremes during October.
- The warmest day in October was on October 2, 2011, with a maximum of 25°C (77°F).
- On October 22, 2003, Cardiff saw its coldest October day with temperatures maxing out at 6°C (43°F).
- Cardiff registered its coldest October night on October 17, 1993, with temperatures dropping to -3°C (27°F).
- The heaviest October precipitation occurred on October 28, 2013, when 43 mm (1.7 in) of precipitation fell.
Best Places in the United Kingdom in October
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in October →
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What to Wear in Cardiff in October
The weather can be unpredictable in October, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Cardiff in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our Cardiff's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Cardiff climate overview or explore weather in the United Kingdom.
