As of 15:30 BST

Weather in Llanycefn

+13°

Llanycefn, Wednesday, 7 October, 15:30

Partly cloudy. Feels like 12°C. High 13°C, low 10°C.

Pressure1017 mb

Wind17 mph NW

Humidity74%

Visibility6.2 mi

Dew point9°C

Detailed hourly forecast

The month ahead in Llanycefn: daytime temperatures averaging +13.2° and +7.9° overnight — that is 0.6° below the climate average for October. Rain is expected on 11 days (around 72 mm), against a normal of 8 days and 55 mm. The warmest day should be 12 October (+15.9°), the coolest 21 October (+4.8°).

+13.2°/+7.9°

Average day / night

−0.6°

Below average

11 / 8

Wet days / normal

72 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+13.7°	+14.1°	-0.4°
17 October – 26 October	+12.4°	+13.2°	-0.7°
27 October – 5 November	near average	+12.4°	—

October records over 66 years

+19.5°1 October 2011All-time high

-2.8°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Neyland (22.3 km away).

Thu, 08+9 ° /13 °

1.4

+13 °

Llanycefn, Thursday, 8 October

Light rain. High 13°C, low 9°C.

Pressure1026 mb

Wind11 mph NW

Humidity69%

Visibility6.2 mi

Dew point6°C

Fri, 09+10 ° /15 °

8.7

+15 °

Llanycefn, Friday, 9 October

Rain. High 15°C, low 10°C.

Pressure1012 mb

Wind18 mph W

Humidity97%

Visibility2.5 mi

Dew point14°C

Sat, 10+9 ° /12 °

0.1

+12 °

Llanycefn, Saturday, 10 October

Light rain. High 12°C, low 9°C.

Pressure1014 mb

Wind19 mph NW

Humidity69%

Visibility6.2 mi

Dew point6°C

Sun, 11+8 ° /12 °

+12 °

Llanycefn, Sunday, 11 October

Overcast. High 12°C, low 8°C.

Pressure1015 mb

Wind6 mph W

Humidity71%

Visibility6.2 mi

Dew point7°C

Mon, 12+12 ° /16 °

+16 °

Llanycefn, Monday, 12 October

Light rain. High 16°C, low 12°C.

Pressure1009 mb

Wind17 mph SE

Humidity99%

Visibility—

Dew point15°C

Tue, 13+9 ° /15 °

7.9

+15 °

Llanycefn, Tuesday, 13 October

Rain. High 15°C, low 9°C.

Pressure1022 mb

Wind18 mph SW

Humidity69%

Visibility—

Dew point9°C

Wed, 14+9 ° /15 °

+15 °

Llanycefn, Wednesday, 14 October

Mainly clear. High 15°C, low 9°C.

Pressure1030 mb

Wind13 mph SW

Humidity69%

Visibility—

Dew point9°C

Thu, 15+8 ° /14 °

1.4

+14 °

Llanycefn, Thursday, 15 October

Light rain. High 14°C, low 8°C.

Pressure1020 mb

Wind20 mph NW

Humidity92%

Visibility—

Dew point10°C

Fri, 16+6 ° /12 °

+12 °

Llanycefn, Friday, 16 October

Overcast. High 12°C, low 6°C.

Pressure1025 mb

Wind7 mph S

Humidity62%

Visibility—

Dew point4°C

Sat, 17+5 ° /14 °

1.3

+14 °

Llanycefn, Saturday, 17 October

Light rain. High 14°C, low 5°C.

Pressure1011 mb

Wind13 mph SW

Humidity81%

Visibility—

Dew point10°C

Sun, 18+5 ° /14 °

1.5

+14 °

Llanycefn, Sunday, 18 October

Light rain. High 14°C, low 5°C.

Pressure1011 mb

Wind29 mph S

Humidity67%

Visibility—

Dew point5°C

Mon, 19+8 ° /12 °

14.7

+12 °

Llanycefn, Monday, 19 October

Rain. High 12°C, low 8°C.

Pressure998 mb

Wind24 mph S

Humidity74%

Visibility—

Dew point5°C

Tue, 20+7 ° /11 °

9.4

+11 °

Llanycefn, Tuesday, 20 October

Light rain. High 11°C, low 7°C.

Pressure996 mb

Wind19 mph SW

Humidity64%

Visibility—

Dew point4°C

Wed, 21+5 ° /10 °

5.6

+10 °

Llanycefn, Wednesday, 21 October

Light rain. High 10°C, low 5°C.

Pressure1007 mb

Wind13 mph W

Humidity72%

Visibility—

Dew point5°C

Thu, 22+6 ° /14 °

10.6

+14 °

Llanycefn, Thursday, 22 October

Rain. High 14°C, low 6°C.

Pressure1004 mb

Wind21 mph S

Humidity86%

Visibility—

Dew point9°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+10 ° /13 °

3.2

+13 °

Llanycefn, Friday, 23 October

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

Average high13°C

Average low10°C

Average rainfall3.2 mm

Chance of rain45%

Warmest on record+17° (2011)

Coldest on record+5° (1987)

Sat, 24+10 ° /13 °

5.3

+13 °

Llanycefn, Saturday, 24 October

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

Average high13°C

Average low10°C

Average rainfall5.3 mm

Chance of rain58%

Warmest on record+17° (1995)

Coldest on record+5° (1987)

Sun, 25+10 ° /13 °

3.9

+13 °

Llanycefn, Sunday, 25 October

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

Average high13°C

Average low10°C

Average rainfall3.9 mm

Chance of rain53%

Warmest on record+16° (2022)

Coldest on record+4° (2010)

Mon, 26+10 ° /13 °

3.4

+13 °

Llanycefn, Monday, 26 October

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

Average high13°C

Average low10°C

Average rainfall3.4 mm

Chance of rain53%

Warmest on record+17° (2005)

Coldest on record+6° (2012)

Tue, 27+10 ° /13 °

4.2

+13 °

Llanycefn, Tuesday, 27 October

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

Average high13°C

Average low10°C

Average rainfall4.2 mm

Chance of rain57%

Warmest on record+18° (2005)

Coldest on record+4° (2019)

Wed, 28+10 ° /13 °

+13 °

Llanycefn, Wednesday, 28 October

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

Average high13°C

Average low10°C

Average rainfall4 mm

Chance of rain62%

Warmest on record+17° (2022)

Coldest on record+3° (2018)

Thu, 29+10 ° /12 °

3.8

+12 °

Llanycefn, Thursday, 29 October

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

Average high12°C

Average low10°C

Average rainfall3.8 mm

Chance of rain53%

Warmest on record+17° (2022)

Coldest on record+0° (2018)

Fri, 30+10 ° /13 °

4.5

+13 °

Llanycefn, Friday, 30 October

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

Average high13°C

Average low10°C

Average rainfall4.5 mm

Chance of rain58%

Warmest on record+16° (2005)

Coldest on record-3° (2018)

Sat, 31+10 ° /13 °

4.8

+13 °

Llanycefn, Saturday, 31 October

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

Average high13°C

Average low10°C

Average rainfall4.8 mm

Chance of rain65%

Warmest on record+17° (2014)

Coldest on record+5° (1966)

Sun, 01+9 ° /12 °

4.2

+12 °

Llanycefn, Sunday, 1 November

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

Average high12°C

Average low9°C

Average rainfall4.2 mm

Chance of rain58%

Warmest on record+16° (2009)

Coldest on record+3° (2018)

Mon, 02+9 ° /12 °

4.3

+12 °

Llanycefn, Monday, 2 November

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

Average high12°C

Average low9°C

Average rainfall4.3 mm

Chance of rain62%

Warmest on record+16° (2005)

Coldest on record+0° (2018)

Tue, 03+9 ° /12 °

3.4

+12 °

Llanycefn, Tuesday, 3 November

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

Average high12°C

Average low9°C

Average rainfall3.4 mm

Chance of rain58%

Warmest on record+15° (2011)

Coldest on record+3° (1980)

Wed, 04+9 ° /12 °

+12 °

Llanycefn, Wednesday, 4 November

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

Average high12°C

Average low9°C

Average rainfall3 mm

Chance of rain50%

Warmest on record+15° (2010)

Coldest on record+3° (2020)

Thu, 05+9 ° /12 °

3.5

+12 °

Llanycefn, Thursday, 5 November

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

Average high12°C

Average low9°C

Average rainfall3.5 mm

Chance of rain53%

Warmest on record+17° (2025)

Coldest on record+3° (2020)

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 Llanycefn 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 Llanycefn 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.