As of 10:01 BST

Weather in Llanfair Pwllgwyngyll

+12°

Llanfair Pwllgwyngyll, Thursday, 8 October, 10:01

Overcast. Feels like 11°C. High 13°C, low 7°C.

Pressure1023 mb

Wind3 mph NW

Humidity81%

Visibility6.2 mi

Dew point8°C

Detailed hourly forecast

The month ahead in Llanfair Pwllgwyngyll: daytime temperatures averaging +14.2° and +9.3° overnight — that is 0.9° above the climate average for October. Rain is expected on 7 days (around 54 mm), against a normal of 8 days and 48 mm. The warmest day should be 21 October (+17.5°), the coolest 17 October (+5.5°).

+14.2°/+9.3°

Average day / night

+0.9°

Above average

7 / 8

Wet days / normal

54 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+13.5°	+13.7°	-0.2°
18 October – 27 October	+15.3°	+12.7°	+2.7°
28 October – 6 November	near average	+11.6°	—

October records over 66 years

+21.7°10 October 2018All-time high

-2.9°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Llangefni (8.3 km away).

Fri, 09+11 ° /15 °

13.1

+15 °

Llanfair Pwllgwyngyll, Friday, 9 October

Rain. High 15°C, low 11°C.

Pressure1009 mb

Wind18 mph W

Humidity82%

Visibility6.2 mi

Dew point11°C

Sat, 10+10 ° /12 °

2.4

+12 °

Llanfair Pwllgwyngyll, Saturday, 10 October

Light rain. High 12°C, low 10°C.

Pressure1014 mb

Wind20 mph W

Humidity72%

Visibility6.2 mi

Dew point7°C

Sun, 11+9 ° /13 °

0.2

+13 °

Llanfair Pwllgwyngyll, Sunday, 11 October

Light rain. High 13°C, low 9°C.

Pressure1013 mb

Wind7 mph SW

Humidity74%

Visibility6.2 mi

Dew point8°C

Mon, 12+10 ° /17 °

1.4

+17 °

Llanfair Pwllgwyngyll, Monday, 12 October

Light rain. High 17°C, low 10°C.

Pressure1011 mb

Wind16 mph S

Humidity87%

Visibility—

Dew point15°C

Tue, 13+13 ° /16 °

0.8

+16 °

Llanfair Pwllgwyngyll, Tuesday, 13 October

Light rain. High 16°C, low 13°C.

Pressure1021 mb

Wind23 mph SW

Humidity74%

Visibility—

Dew point12°C

Wed, 14+10 ° /15 °

13.8

+15 °

Llanfair Pwllgwyngyll, Wednesday, 14 October

Rain. High 15°C, low 10°C.

Pressure1017 mb

Wind22 mph S

Humidity89%

Visibility—

Dew point13°C

Thu, 15+7 ° /12 °

7.4

+12 °

Llanfair Pwllgwyngyll, Thursday, 15 October

Rain. High 12°C, low 7°C.

Pressure1023 mb

Wind14 mph NW

Humidity72%

Visibility—

Dew point6°C

Fri, 16+6 ° /11 °

+11 °

Llanfair Pwllgwyngyll, Friday, 16 October

Light rain. High 11°C, low 6°C.

Pressure1024 mb

Wind8 mph NW

Humidity76%

Visibility—

Dew point6°C

Sat, 17+5 ° /10 °

0.2

+10 °

Llanfair Pwllgwyngyll, Saturday, 17 October

Light rain. High 10°C, low 5°C.

Pressure1021 mb

Wind8 mph NE

Humidity72%

Visibility—

Dew point5°C

Sun, 18+6 ° /12 °

0.6

+12 °

Llanfair Pwllgwyngyll, Sunday, 18 October

Light rain. High 12°C, low 6°C.

Pressure1015 mb

Wind4 mph E

Humidity79%

Visibility—

Dew point8°C

Mon, 19+10 ° /15 °

0.6

+15 °

Llanfair Pwllgwyngyll, Monday, 19 October

Light rain. High 15°C, low 10°C.

Pressure1017 mb

Wind9 mph S

Humidity73%

Visibility—

Dew point10°C

Tue, 20+12 ° /17 °

0.9

+17 °

Llanfair Pwllgwyngyll, Tuesday, 20 October

Light rain. High 17°C, low 12°C.

Pressure1017 mb

Wind6 mph SE

Humidity80%

Visibility—

Dew point13°C

Wed, 21+11 ° /17 °

+17 °

Llanfair Pwllgwyngyll, Wednesday, 21 October

Overcast. High 17°C, low 11°C.

Pressure1015 mb

Wind9 mph SE

Humidity64%

Visibility—

Dew point10°C

Thu, 22+11 ° /16 °

+16 °

Llanfair Pwllgwyngyll, Thursday, 22 October

Overcast. High 16°C, low 11°C.

Pressure1014 mb

Wind11 mph E

Humidity72%

Visibility—

Dew point10°C

Fri, 23+9 ° /14 °

+14 °

Llanfair Pwllgwyngyll, Friday, 23 October

Overcast. High 14°C, low 9°C.

Pressure1019 mb

Wind12 mph E

Humidity65%

Visibility—

Dew point7°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+9 ° /13 °

3.7

+13 °

Llanfair Pwllgwyngyll, Saturday, 24 October

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

Average high13°C

Average low9°C

Average rainfall3.7 mm

Chance of rain47%

Warmest on record+18° (1995)

Coldest on record+3° (1987)

Sun, 25+9 ° /12 °

+12 °

Llanfair Pwllgwyngyll, Sunday, 25 October

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

Average high12°C

Average low9°C

Average rainfall4 mm

Chance of rain57%

Warmest on record+17° (2024)

Coldest on record+1° (2010)

Mon, 26+9 ° /12 °

2.8

+12 °

Llanfair Pwllgwyngyll, Monday, 26 October

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

Average high12°C

Average low9°C

Average rainfall2.8 mm

Chance of rain48%

Warmest on record+17° (2005)

Coldest on record+2° (1997)

Tue, 27+9 ° /13 °

+13 °

Llanfair Pwllgwyngyll, Tuesday, 27 October

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

Average high13°C

Average low9°C

Average rainfall4 mm

Chance of rain53%

Warmest on record+19° (2005)

Coldest on record+2° (1962)

Wed, 28+9 ° /12 °

3.9

+12 °

Llanfair Pwllgwyngyll, Wednesday, 28 October

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

Average high12°C

Average low9°C

Average rainfall3.9 mm

Chance of rain62%

Warmest on record+17° (2005)

Coldest on record+3° (1997)

Thu, 29+8 ° /12 °

3.2

+12 °

Llanfair Pwllgwyngyll, Thursday, 29 October

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+18° (2022)

Coldest on record-1° (2018)

Fri, 30+8 ° /12 °

3.2

+12 °

Llanfair Pwllgwyngyll, Friday, 30 October

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

Average high12°C

Average low8°C

Average rainfall3.2 mm

Chance of rain55%

Warmest on record+16° (2005)

Coldest on record-3° (2018)

Sat, 31+9 ° /12 °

3.9

+12 °

Llanfair Pwllgwyngyll, Saturday, 31 October

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

Average high12°C

Average low9°C

Average rainfall3.9 mm

Chance of rain63%

Warmest on record+18° (2014)

Coldest on record-1° (1988)

Sun, 01+8 ° /12 °

4.4

+12 °

Llanfair Pwllgwyngyll, Sunday, 1 November

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

Average high12°C

Average low8°C

Average rainfall4.4 mm

Chance of rain58%

Warmest on record+15° (2020)

Coldest on record+1° (1988)

Mon, 02+8 ° /12 °

4.6

+12 °

Llanfair Pwllgwyngyll, Monday, 2 November

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

Average high12°C

Average low8°C

Average rainfall4.6 mm

Chance of rain60%

Warmest on record+16° (2005)

Coldest on record+1° (1986)

Tue, 03+8 ° /11 °

3.9

+11 °

Llanfair Pwllgwyngyll, Tuesday, 3 November

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

Average high11°C

Average low8°C

Average rainfall3.9 mm

Chance of rain62%

Warmest on record+16° (2011)

Coldest on record0° (2006)

Wed, 04+7 ° /11 °

2.6

+11 °

Llanfair Pwllgwyngyll, Wednesday, 4 November

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

Average high11°C

Average low7°C

Average rainfall2.6 mm

Chance of rain55%

Warmest on record+15° (2010)

Coldest on record+0° (1968)

Thu, 05+7 ° /11 °

3.7

+11 °

Llanfair Pwllgwyngyll, Thursday, 5 November

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

Average high11°C

Average low7°C

Average rainfall3.7 mm

Chance of rain57%

Warmest on record+17° (2025)

Coldest on record+2° (1965)

Fri, 06+8 ° /11 °

2.6

+11 °

Llanfair Pwllgwyngyll, Friday, 6 November

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

Average high11°C

Average low8°C

Average rainfall2.6 mm

Chance of rain50%

Warmest on record+17° (2025)

Coldest on record+3° (1987)

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 Llanfair Pwllgwyngyll 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 Llanfair Pwllgwyngyll 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.