As of 09:32 BST

Weather in Cwm

+11°

Cwm, Wednesday, 7 October, 09:32

Light rain. Feels like 11°C. High 13°C, low 10°C.

Pressure1017 mb

Wind2 mph W

Humidity82%

Visibility6.2 mi

Dew point8°C

Detailed hourly forecast

The month ahead in Cwm: daytime temperatures averaging +15.6° and +9.3° overnight — that is 2.1° above the climate average for October. Rain is expected on 6 days (around 23 mm), against a normal of 7 days and 40 mm. The warmest day should be 17 October (+19.4°), the coolest 12 October (+6.4°).

+15.6°/+9.3°

Average day / night

+2.1°

Above average

6 / 7

Wet days / normal

23 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+15.1°	+13.9°	+1.2°
17 October – 26 October	+16.4°	+12.7°	+3.8°
27 October – 5 November	near average	+11.7°	—

October records over 66 years

+24.2°1 October 1985All-time high

-0.7°18 October 1993All-time low

Climate averages and records are calculated from the nearest reference point — St Asaph / Llanelwy (4 km away).

Thu, 08+9 ° /14 °

1.4

+14 °

Cwm, Thursday, 8 October

Light rain. High 14°C, low 9°C.

Pressure1023 mb

Wind11 mph NW

Humidity72%

Visibility6.2 mi

Dew point7°C

Fri, 09+11 ° /15 °

7.3

+15 °

Cwm, Friday, 9 October

Rain. High 15°C, low 11°C.

Pressure1009 mb

Wind21 mph W

Humidity75%

Visibility6.2 mi

Dew point10°C

Sat, 10+10 ° /11 °

5.9

+11 °

Cwm, Saturday, 10 October

Light rain. High 11°C, low 10°C.

Pressure1011 mb

Wind23 mph W

Humidity68%

Visibility4.9 mi

Dew point6°C

Sun, 11+8 ° /13 °

1.2

+13 °

Cwm, Sunday, 11 October

Light rain. High 13°C, low 8°C.

Pressure1014 mb

Wind17 mph W

Humidity71%

Visibility—

Dew point7°C

Mon, 12+6 ° /15 °

0.5

+15 °

Cwm, Monday, 12 October

Light rain. High 15°C, low 6°C.

Pressure1014 mb

Wind15 mph S

Humidity76%

Visibility—

Dew point9°C

Tue, 13+10 ° /19 °

3.2

+19 °

Cwm, Tuesday, 13 October

Light rain. High 19°C, low 10°C.

Pressure1018 mb

Wind14 mph NW

Humidity75%

Visibility—

Dew point14°C

Wed, 14+8 ° /17 °

+17 °

Cwm, Wednesday, 14 October

Overcast. High 17°C, low 8°C.

Pressure1029 mb

Wind7 mph S

Humidity57%

Visibility—

Dew point7°C

Thu, 15+11 ° /17 °

+17 °

Cwm, Thursday, 15 October

Overcast. High 17°C, low 11°C.

Pressure1027 mb

Wind10 mph SW

Humidity67%

Visibility—

Dew point10°C

Fri, 16+11 ° /16 °

+16 °

Cwm, Friday, 16 October

Overcast. High 16°C, low 11°C.

Pressure1018 mb

Wind12 mph S

Humidity72%

Visibility—

Dew point11°C

Sat, 17+11 ° /19 °

0.5

+19 °

Cwm, Saturday, 17 October

Light rain. High 19°C, low 11°C.

Pressure1008 mb

Wind12 mph S

Humidity63%

Visibility—

Dew point11°C

Sun, 18+11 ° /18 °

+18 °

Cwm, Sunday, 18 October

Overcast. High 18°C, low 11°C.

Pressure1014 mb

Wind8 mph E

Humidity60%

Visibility—

Dew point8°C

Mon, 19+8 ° /16 °

+16 °

Cwm, Monday, 19 October

Clear sky. High 16°C, low 8°C.

Pressure1022 mb

Wind6 mph NE

Humidity60%

Visibility—

Dew point7°C

Tue, 20+8 ° /16 °

+16 °

Cwm, Tuesday, 20 October

Overcast. High 16°C, low 8°C.

Pressure1031 mb

Wind6 mph SE

Humidity61%

Visibility—

Dew point7°C

Wed, 21+8 ° /16 °

+16 °

Cwm, Wednesday, 21 October

Overcast. High 16°C, low 8°C.

Pressure1030 mb

Wind6 mph SE

Humidity62%

Visibility—

Dew point8°C

Thu, 22+8 ° /14 °

+14 °

Cwm, Thursday, 22 October

Overcast. High 14°C, low 8°C.

Pressure1029 mb

Wind8 mph SE

Humidity50%

Visibility—

Dew point3°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+9 ° /13 °

1.9

+13 °

Cwm, Friday, 23 October

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

Average high13°C

Average low9°C

Average rainfall1.9 mm

Chance of rain38%

Warmest on record+17° (2017)

Coldest on record+3° (1987)

Sat, 24+9 ° /13 °

2.6

+13 °

Cwm, Saturday, 24 October

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

Average high13°C

Average low9°C

Average rainfall2.6 mm

Chance of rain40%

Warmest on record+17° (1996)

Coldest on record+2° (1987)

Sun, 25+8 ° /12 °

3.4

+12 °

Cwm, Sunday, 25 October

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

Average high12°C

Average low8°C

Average rainfall3.4 mm

Chance of rain52%

Warmest on record+17° (2024)

Coldest on record0° (2010)

Mon, 26+8 ° /12 °

2.6

+12 °

Cwm, Monday, 26 October

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

Average high12°C

Average low8°C

Average rainfall2.6 mm

Chance of rain35%

Warmest on record+18° (2005)

Coldest on record+2° (1997)

Tue, 27+8 ° /13 °

3.1

+13 °

Cwm, Tuesday, 27 October

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

Average high13°C

Average low8°C

Average rainfall3.1 mm

Chance of rain53%

Warmest on record+19° (2005)

Coldest on record+2° (2003)

Wed, 28+8 ° /12 °

2.5

+12 °

Cwm, Wednesday, 28 October

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+17° (2014)

Coldest on record+3° (1997)

Thu, 29+8 ° /12 °

2.4

+12 °

Cwm, Thursday, 29 October

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

Average high12°C

Average low8°C

Average rainfall2.4 mm

Chance of rain45%

Warmest on record+18° (2022)

Coldest on record0° (2018)

Fri, 30+8 ° /12 °

2.4

+12 °

Cwm, Friday, 30 October

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

Average high12°C

Average low8°C

Average rainfall2.4 mm

Chance of rain52%

Warmest on record+17° (2005)

Coldest on record0° (2018)

Sat, 31+8 ° /12 °

+12 °

Cwm, Saturday, 31 October

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

Average high12°C

Average low8°C

Average rainfall3 mm

Chance of rain53%

Warmest on record+19° (2014)

Coldest on record-1° (1988)

Sun, 01+8 ° /12 °

3.2

+12 °

Cwm, Sunday, 1 November

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

Average high12°C

Average low8°C

Average rainfall3.2 mm

Chance of rain52%

Warmest on record+17° (2020)

Coldest on record+1° (1988)

Mon, 02+8 ° /12 °

3.7

+12 °

Cwm, Monday, 2 November

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

Average high12°C

Average low8°C

Average rainfall3.7 mm

Chance of rain58%

Warmest on record+17° (2005)

Coldest on record+1° (1986)

Tue, 03+7 ° /11 °

3.1

+11 °

Cwm, Tuesday, 3 November

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

Average high11°C

Average low7°C

Average rainfall3.1 mm

Chance of rain55%

Warmest on record+16° (1979)

Coldest on record-1° (2006)

Wed, 04+7 ° /11 °

1.8

+11 °

Cwm, Wednesday, 4 November

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

Average high11°C

Average low7°C

Average rainfall1.8 mm

Chance of rain47%

Warmest on record+16° (2025)

Coldest on record0° (1967)

Thu, 05+7 ° /11 °

+11 °

Cwm, Thursday, 5 November

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

Average high11°C

Average low7°C

Average rainfall3 mm

Chance of rain47%

Warmest on record+17° (2025)

Coldest on record+0° (1965)

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 Cwm 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 Cwm 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.