As of 01:11 BST

Weather in St Dennis

+12°

St Dennis, Thursday, 8 October, 01:11

Partly cloudy. Feels like 11°C. High 13°C, low 11°C.

Pressure1021 mb

Wind18 mph N

Humidity66%

Visibility6.2 mi

Dew point6°C

Detailed hourly forecast

The month ahead in St Dennis: daytime temperatures averaging +14.2° and +10.4° overnight — that is 0° below the climate average for October. Rain is expected on 9 days (around 47 mm), against a normal of 8 days and 51 mm. The warmest day should be 12 October (+17.5°), the coolest 23 October (+7.2°).

+14.2°/+10.4°

Average day / night

−0°

Below average

9 / 8

Wet days / normal

47 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+15.2°	+14.6°	+0.5°
18 October – 27 October	+12.7°	+13.6°	-0.9°
28 October – 6 November	near average	+12.6°	—

October records over 66 years

+21.9°1 October 2011All-time high

-0.7°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — St Austell (8.2 km away).

Fri, 09+13 ° /17 °

3.8

+17 °

St Dennis, Friday, 9 October

Rain. High 17°C, low 13°C.

Pressure1016 mb

Wind21 mph W

Humidity86%

Visibility5.3 mi

Dew point14°C

Sat, 10+12 ° /14 °

+14 °

St Dennis, Saturday, 10 October

Overcast. High 14°C, low 12°C.

Pressure1018 mb

Wind15 mph NW

Humidity70%

Visibility6.2 mi

Dew point8°C

Sun, 11+12 ° /15 °

0.2

+15 °

St Dennis, Sunday, 11 October

Light rain. High 15°C, low 12°C.

Pressure1016 mb

Wind4 mph W

Humidity70%

Visibility6.2 mi

Dew point8°C

Mon, 12+12 ° /18 °

1.5

+18 °

St Dennis, Monday, 12 October

Light rain. High 18°C, low 12°C.

Pressure1014 mb

Wind17 mph S

Humidity94%

Visibility—

Dew point16°C

Tue, 13+10 ° /17 °

+17 °

St Dennis, Tuesday, 13 October

Overcast. High 17°C, low 10°C.

Pressure1021 mb

Wind13 mph W

Humidity87%

Visibility—

Dew point15°C

Wed, 14+10 ° /16 °

+16 °

St Dennis, Wednesday, 14 October

Overcast. High 16°C, low 10°C.

Pressure1027 mb

Wind9 mph SW

Humidity67%

Visibility—

Dew point9°C

Thu, 15+9 ° /15 °

1.3

+15 °

St Dennis, Thursday, 15 October

Light rain. High 15°C, low 9°C.

Pressure1019 mb

Wind14 mph SW

Humidity93%

Visibility—

Dew point13°C

Fri, 16+7 ° /13 °

1.1

+13 °

St Dennis, Friday, 16 October

Light rain. High 13°C, low 7°C.

Pressure1019 mb

Wind12 mph SE

Humidity61%

Visibility—

Dew point5°C

Sat, 17+10 ° /14 °

15.1

+14 °

St Dennis, Saturday, 17 October

Rain. High 14°C, low 10°C.

Pressure1015 mb

Wind21 mph SW

Humidity71%

Visibility—

Dew point8°C

Sun, 18+9 ° /12 °

+12 °

St Dennis, Sunday, 18 October

Overcast. High 12°C, low 9°C.

Pressure1029 mb

Wind12 mph NW

Humidity53%

Visibility—

Dew point2°C

Mon, 19+12 ° /15 °

10.1

+15 °

St Dennis, Monday, 19 October

Rain. High 15°C, low 12°C.

Pressure1016 mb

Wind26 mph NW

Humidity96%

Visibility—

Dew point14°C

Tue, 20+14 ° /15 °

0.3

+15 °

St Dennis, Tuesday, 20 October

Light rain. High 15°C, low 14°C.

Pressure1019 mb

Wind23 mph W

Humidity90%

Visibility—

Dew point13°C

Wed, 21+11 ° /14 °

1.2

+14 °

St Dennis, Wednesday, 21 October

Light rain. High 14°C, low 11°C.

Pressure1015 mb

Wind21 mph NW

Humidity68%

Visibility—

Dew point6°C

Thu, 22+8 ° /11 °

7.2

+11 °

St Dennis, Thursday, 22 October

Light rain. High 11°C, low 8°C.

Pressure1001 mb

Wind25 mph W

Humidity71%

Visibility—

Dew point6°C

Fri, 23+7 ° /9 °

4.7

+9 °

St Dennis, Friday, 23 October

Light rain. High 9°C, low 7°C.

Pressure1008 mb

Wind27 mph NW

Humidity72%

Visibility—

Dew point4°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+9 ° /14 °

4.5

+14 °

St Dennis, Saturday, 24 October

Climate average for this date — the mean of the last 60 years.

Average high14°C

Average low9°C

Average rainfall4.5 mm

Chance of rain52%

Warmest on record+17° (2005)

Coldest on record+2° (1987)

Sun, 25+9 ° /13 °

2.7

+13 °

St Dennis, Sunday, 25 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low9°C

Average rainfall2.7 mm

Chance of rain42%

Warmest on record+16° (2006)

Coldest on record+2° (2010)

Mon, 26+9 ° /14 °

2.7

+14 °

St Dennis, Monday, 26 October

Climate average for this date — the mean of the last 60 years.

Average high14°C

Average low9°C

Average rainfall2.7 mm

Chance of rain48%

Warmest on record+18° (2005)

Coldest on record+6° (1984)

Tue, 27+10 ° /13 °

3.6

+13 °

St Dennis, Tuesday, 27 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low10°C

Average rainfall3.6 mm

Chance of rain53%

Warmest on record+18° (2005)

Coldest on record+2° (1962)

Wed, 28+9 ° /13 °

3.5

+13 °

St Dennis, Wednesday, 28 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low9°C

Average rainfall3.5 mm

Chance of rain48%

Warmest on record+18° (2014)

Coldest on record+4° (2003)

Thu, 29+9 ° /13 °

3.2

+13 °

St Dennis, Thursday, 29 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low9°C

Average rainfall3.2 mm

Chance of rain47%

Warmest on record+17° (2006)

Coldest on record+2° (2018)

Fri, 30+9 ° /13 °

4.1

+13 °

St Dennis, Friday, 30 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low9°C

Average rainfall4.1 mm

Chance of rain53%

Warmest on record+17° (2014)

Coldest on record-1° (2018)

Sat, 31+9 ° /13 °

4.2

+13 °

St Dennis, Saturday, 31 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low9°C

Average rainfall4.2 mm

Chance of rain58%

Warmest on record+19° (2014)

Coldest on record+3° (1992)

Sun, 01+9 ° /13 °

+13 °

St Dennis, Sunday, 1 November

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low9°C

Average rainfall3 mm

Chance of rain47%

Warmest on record+17° (2015)

Coldest on record+3° (1997)

Mon, 02+8 ° /12 °

3.8

+12 °

St Dennis, Monday, 2 November

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall3.8 mm

Chance of rain50%

Warmest on record+17° (2005)

Coldest on record+3° (1986)

Tue, 03+8 ° /12 °

2.7

+12 °

St Dennis, Tuesday, 3 November

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall2.7 mm

Chance of rain57%

Warmest on record+16° (1969)

Coldest on record+2° (1966)

Wed, 04+8 ° /12 °

+12 °

St Dennis, Wednesday, 4 November

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall3 mm

Chance of rain50%

Warmest on record+16° (1978)

Coldest on record+0° (1968)

Thu, 05+8 ° /12 °

2.8

+12 °

St Dennis, Thursday, 5 November

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall2.8 mm

Chance of rain47%

Warmest on record+16° (2025)

Coldest on record+3° (1980)

Fri, 06+8 ° /12 °

2.5

+12 °

St Dennis, Friday, 6 November

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low8°C

Average rainfall2.5 mm

Chance of rain48%

Warmest on record+16° (2015)

Coldest on record+2° (2006)

Questions about the month ahead

How accurate is a month-long forecast?

The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for St Dennis are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.

Where do the 66-year records come from?

These are real historical extremes recorded in St Dennis since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.