As of 04:47 BST

Weather in Llwyn-onn

+7°

Llwyn-onn, Thursday, 8 October, 04:47

Partly cloudy. Feels like 4°C. High 13°C, low 6°C.

Pressure1021 mb

Wind9 mph NW

Humidity87%

Visibility6.2 mi

Dew point5°C

Detailed hourly forecast

The month ahead in Llwyn-onn: daytime temperatures averaging +12.7° and +7.3° overnight — that is 0.5° below the climate average for October. Rain is expected on 8 days (around 84 mm), against a normal of 7 days and 62 mm. The warmest day should be 9 October (+15.5°), the coolest 17 October (+3.3°).

+12.7°/+7.3°

Average day / night

−0.5°

Below average

8 / 7

Wet days / normal

84 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+12.3°	+13.6°	-1.3°
18 October – 27 October	+13.4°	+12.4°	+0.9°
28 October – 6 November	near average	+11.2°	—

October records over 66 years

+23.1°1 October 2011All-time high

-2.2°16 October 1993All-time low

Climate averages and records are calculated from the nearest reference point — Hirwaun (7.4 km away).

Fri, 09+8 ° /16 °

10.1

+16 °

Llwyn-onn, Friday, 9 October

Rain. High 16°C, low 8°C.

Pressure1011 mb

Wind17 mph W

Humidity99%

Visibility3048 ft

Dew point13°C

Sat, 10+7 ° /10 °

+10 °

Llwyn-onn, Saturday, 10 October

Overcast. High 10°C, low 7°C.

Pressure1015 mb

Wind16 mph W

Humidity70%

Visibility6.2 mi

Dew point5°C

Sun, 11+5 ° /11 °

0.1

+11 °

Llwyn-onn, Sunday, 11 October

Light rain. High 11°C, low 5°C.

Pressure1016 mb

Wind7 mph W

Humidity69%

Visibility6.2 mi

Dew point5°C

Mon, 12+7 ° /15 °

+15 °

Llwyn-onn, Monday, 12 October

Rain. High 15°C, low 7°C.

Pressure1015 mb

Wind13 mph S

Humidity100%

Visibility—

Dew point12°C

Tue, 13+10 ° /15 °

10.3

+15 °

Llwyn-onn, Tuesday, 13 October

Rain. High 15°C, low 10°C.

Pressure1021 mb

Wind15 mph SW

Humidity99%

Visibility—

Dew point14°C

Wed, 14+6 ° /14 °

+14 °

Llwyn-onn, Wednesday, 14 October

Overcast. High 14°C, low 6°C.

Pressure1022 mb

Wind9 mph SW

Humidity71%

Visibility—

Dew point8°C

Thu, 15+6 ° /11 °

20.3

+11 °

Llwyn-onn, Thursday, 15 October

Heavy rain. High 11°C, low 6°C.

Pressure1014 mb

Wind17 mph N

Humidity94%

Visibility—

Dew point6°C

Fri, 16+4 ° /9 °

+9 °

Llwyn-onn, Friday, 16 October

Mainly clear. High 9°C, low 4°C.

Pressure1024 mb

Wind14 mph N

Humidity71%

Visibility—

Dew point3°C

Sat, 17+3 ° /11 °

0.7

+11 °

Llwyn-onn, Saturday, 17 October

Light rain. High 11°C, low 3°C.

Pressure1020 mb

Wind8 mph N

Humidity70%

Visibility—

Dew point5°C

Sun, 18+7 ° /11 °

18.9

+11 °

Llwyn-onn, Sunday, 18 October

Rain. High 11°C, low 7°C.

Pressure1017 mb

Wind6 mph SE

Humidity98%

Visibility—

Dew point7°C

Mon, 19+11 ° /13 °

1.7

+13 °

Llwyn-onn, Monday, 19 October

Light rain. High 13°C, low 11°C.

Pressure1018 mb

Wind6 mph SE

Humidity90%

Visibility—

Dew point11°C

Tue, 20+11 ° /15 °

1.2

+15 °

Llwyn-onn, Tuesday, 20 October

Light rain. High 15°C, low 11°C.

Pressure1018 mb

Wind12 mph SE

Humidity89%

Visibility—

Dew point11°C

Wed, 21+10 ° /15 °

+15 °

Llwyn-onn, Wednesday, 21 October

Overcast. High 15°C, low 10°C.

Pressure1016 mb

Wind17 mph SE

Humidity76%

Visibility—

Dew point10°C

Thu, 22+8 ° /14 °

+14 °

Llwyn-onn, Thursday, 22 October

Partly cloudy. High 14°C, low 8°C.

Pressure1012 mb

Wind18 mph E

Humidity73%

Visibility—

Dew point9°C

Fri, 23+6 ° /12 °

+12 °

Llwyn-onn, Friday, 23 October

Partly cloudy. High 12°C, low 6°C.

Pressure1017 mb

Wind15 mph E

Humidity72%

Visibility—

Dew point6°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+7 ° /12 °

5.2

+12 °

Llwyn-onn, Saturday, 24 October

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

Average high12°C

Average low7°C

Average rainfall5.2 mm

Chance of rain53%

Warmest on record+16° (1995)

Coldest on record-1° (2003)

Sun, 25+7 ° /12 °

5.2

+12 °

Llwyn-onn, Sunday, 25 October

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

Average high12°C

Average low7°C

Average rainfall5.2 mm

Chance of rain50%

Warmest on record+16° (1969)

Coldest on record-1° (2010)

Mon, 26+7 ° /12 °

3.4

+12 °

Llwyn-onn, Monday, 26 October

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

Average high12°C

Average low7°C

Average rainfall3.4 mm

Chance of rain48%

Warmest on record+17° (2005)

Coldest on record+1° (1997)

Tue, 27+7 ° /12 °

4.5

+12 °

Llwyn-onn, Tuesday, 27 October

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

Average high12°C

Average low7°C

Average rainfall4.5 mm

Chance of rain48%

Warmest on record+18° (2005)

Coldest on record-1° (2003)

Wed, 28+7 ° /12 °

5.2

+12 °

Llwyn-onn, Wednesday, 28 October

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

Average high12°C

Average low7°C

Average rainfall5.2 mm

Chance of rain55%

Warmest on record+17° (2014)

Coldest on record+1° (2012)

Thu, 29+7 ° /12 °

4.4

+12 °

Llwyn-onn, Thursday, 29 October

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

Average high12°C

Average low7°C

Average rainfall4.4 mm

Chance of rain48%

Warmest on record+17° (2022)

Coldest on record-2° (2008)

Fri, 30+7 ° /12 °

+12 °

Llwyn-onn, Friday, 30 October

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

Average high12°C

Average low7°C

Average rainfall5 mm

Chance of rain60%

Warmest on record+17° (2015)

Coldest on record0° (1983)

Sat, 31+7 ° /12 °

+12 °

Llwyn-onn, Saturday, 31 October

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

Average high12°C

Average low7°C

Average rainfall6 mm

Chance of rain60%

Warmest on record+19° (2014)

Coldest on record-1° (1992)

Sun, 01+7 ° /12 °

4.8

+12 °

Llwyn-onn, Sunday, 1 November

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

Average high12°C

Average low7°C

Average rainfall4.8 mm

Chance of rain57%

Warmest on record+15° (2014)

Coldest on record+0° (1988)

Mon, 02+7 ° /11 °

5.9

+11 °

Llwyn-onn, Monday, 2 November

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

Average high11°C

Average low7°C

Average rainfall5.9 mm

Chance of rain60%

Warmest on record+16° (2005)

Coldest on record-2° (2006)

Tue, 03+7 ° /11 °

+11 °

Llwyn-onn, Tuesday, 3 November

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

Average high11°C

Average low7°C

Average rainfall4 mm

Chance of rain53%

Warmest on record+15° (2011)

Coldest on record-2° (2006)

Wed, 04+6 ° /11 °

2.9

+11 °

Llwyn-onn, Wednesday, 4 November

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

Average high11°C

Average low6°C

Average rainfall2.9 mm

Chance of rain43%

Warmest on record+15° (1973)

Coldest on record-2° (1968)

Thu, 05+6 ° /11 °

3.4

+11 °

Llwyn-onn, Thursday, 5 November

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

Average high11°C

Average low6°C

Average rainfall3.4 mm

Chance of rain42%

Warmest on record+15° (1978)

Coldest on record0° (1965)

Fri, 06+6 ° /10 °

2.8

+10 °

Llwyn-onn, Friday, 6 November

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

Average high10°C

Average low6°C

Average rainfall2.8 mm

Chance of rain45%

Warmest on record+15° (2015)

Coldest on record+1° (1960)

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 Llwyn-onn 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 Llwyn-onn 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.