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Weather in Cornwall for October 2026

Your guide to Cornwall weather in October - trends and predictions

    Temperatures

  • Until now, October 2026 in Cornwall is slightly cooler than the historical average by 1.5 °C.

  • The forecast for the upcoming days in Cornwall predicts a temperature of 12.2 °C, which is slightly above the historical average.

  • In general, the average temperature in Cornwall at the beginning of October is 20.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 10.8 °C by the end of October.

    • Rain 🌧️

  • The climate of Cornwall in October is notably wet, with an average of 11 rainy days, and a total of 171 mm of precipitation.

    • More

  • Is October a good time to visit Cornwall? check out the best time to travel to Cornwall page.

  • ✨ Is October a good time to visit Cornwall? – Ask the AI Weatherman

Average dry days
20
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
14°/6°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Cornwall Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
21°
2
Moderate or heavy rain shower
20°
3
Sunny
22°
4
Overcast
24°
5
Light rain
22°
6
Light rain shower
20°
7
Heavy rain
17°
8
Moderate rain
14°
9
Light rain shower
13°
10
Patchy rain possible
13°
11
Patchy rain possible
16°
12
Light rain
14°
13
Moderate rain
10°
14
Patchy rain possible
12°
15
Overcast
10°
16
Light rain
13°
17
Patchy rain possible
12°
18
Mist
15°
19
Overcast
18°
20
Light drizzle
17°
21
Light rain
16°
22
Light rain
14°
23
Patchy rain possible
13°
24
Light rain
12°
25
Overcast
13°
26
Patchy rain possible
10°
27
Sunny
7°
28
Overcast
12°
29
Patchy rain possible
19°
30
Sunny
15°
31
Sunny
10°

Temperatures trend during October in Cornwall

See the weather trend as well as the moving average line

October weather in Cornwall day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Mist
Mist
 21° /9° 0.5 mm 4
2 Oct. Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /10° 6.3 mm 4
3 Oct. Sunny
Sunny
 22° /9° 0 mm 4.3
4 Oct. Overcast
Overcast
 24° /12° 0.4 mm 4.2
5 Oct. Light rain
Light rain
 22° /12° 2.7 mm 4.1
6 Oct. Light rain shower
Light rain shower
 20° /10° 1.1 mm 4
7 Oct. Heavy rain
Heavy rain
 17° /9° 50.9 mm 3
8 Oct. Moderate rain
Moderate rain
 14° /6° 11.9 mm 3
9 Oct. Light rain shower
Light rain shower
 13° /4° 2.1 mm 3
10 Oct. Patchy rain possible
Patchy rain possible
 13° /4° 1.7 mm 3.7
11 Oct. Patchy rain possible
Patchy rain possible
 16° /6° 1.5 mm 3
12 Oct. Light rain
Light rain
 14° /5° 4 mm 2
13 Oct. Moderate rain
Moderate rain
 10° /5° 18.8 mm 2
14 Oct. Patchy rain possible
Patchy rain possible
 12° /6° 0.2 mm 2
15 Oct. Overcast
Overcast
 10° /4° 0.4 mm 2
16 Oct. Light rain
Light rain
 13° /4° 5 mm 2
17 Oct. Patchy rain possible
Patchy rain possible
 12° /3° 0.1 mm 3
18 Oct. Mist
Mist
 15° /4° 0 mm 3
19 Oct. Overcast
Overcast
 18° /7° 0 mm 3.1
20 Oct. Light drizzle
Light drizzle
 17° /9° 1.6 mm 3
21 Oct. Light rain
Light rain
 16° /8° 9.4 mm 2.9
22 Oct. Light rain
Light rain
 14° /6° 5.9 mm 2.9
23 Oct. Patchy rain possible
Patchy rain possible
 13° /6° 2 mm 2.8
24 Oct. Light rain
Light rain
 12° /3° 2.6 mm 2
25 Oct. Overcast
Overcast
 13° /4° 0.6 mm 2.7
26 Oct. Patchy rain possible
Patchy rain possible
 10° /3° 1.2 mm 0.6
27 Oct. Sunny
Sunny
 7° /-2° 0 mm 2.6
28 Oct. Overcast
Overcast
 12° /-1° 0 mm 2.5
29 Oct. Patchy rain possible
Patchy rain possible
 19° /5° 1.2 mm 1.8
30 Oct. Sunny
Sunny
 15° /5° 0.2 mm 4
31 Oct. Sunny
Sunny
 10° /3° 0 mm 4
Next
Important Notice
Our weather forecast for Cornwall in October 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 Cornwall forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Cornwall in October - FAQ

What are the expected maximum and minimum temperatures in Cornwall during October?
During October, expect a variety of temperatures with highs around 14° and lows near 6°, suitable for diverse activities and preferences.

How much rainfall should be expected in Cornwall during October?
Significant rainfall exceeding 171 mm is expected in Cornwall during October, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Cornwall in October 2026?
Cornwall typically sees 1.8 cm of snowfall during October.

What are the typical wind conditions in Cornwall during October?
The average wind speed in Cornwall during October is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Cornwall

Explore the daily rainfall trends and prepare for Cornwalls October weather 💧
Typically, Cornwall has 11 rainy days in October with a total of 171 mm of rainfall.

UV exposure in Cornwall during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Quick links
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Location coordinates Where is Cornwall?

Get accurate weather forecasts for Cornwall, located at latitude 45.018 and longitude -74.728. Stay updated with localized weather information tailored for Cornwall.

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