The month ahead in Llanfair: daytime temperatures averaging +13.6° and +9.8° overnight — that is 0.6° above the climate average for October. Rain is expected on 14 days (around 117 mm), against a normal of 9 days and 68 mm. The warmest day should be 12 October (+16.5°), the coolest 18 October (+6.2°).
+13.6°/+9.8°
Average day / night
+0.6°
Above average
14 / 9
Wet days / normal
117 mm
Rainfall this month
Ten-day blocks against the climate average
Period
Forecast (day)
Average
Difference
7 October – 16 October
+14.3°
+13.4°
+0.9°
17 October – 26 October
+12.5°
+12.2°
+0.3°
27 October – 5 November
near average
+11.2°
—
October records over 66 years
+22.7°1 October 2011All-time high
-1.5°25 October 2010All-time low
Climate averages and records are calculated from the nearest reference point — Harlech (2 km away).
Thu, 08+9 ° /16 °6.2
+16 °
Llanfair, Thursday, 8 October
Rain. High 16°C, low 9°C.
Pressure1024 mb
Wind11 mph NW
Humidity64%
Visibility6.2 mi
Dew point6°C
Fri, 09+13 ° /16 °16.2
+16 °
Llanfair, Friday, 9 October
Rain. High 16°C, low 13°C.
Pressure1010 mb
Wind17 mph NW
Humidity80%
Visibility6.2 mi
Dew point10°C
Sat, 10+11 ° /13 °4.1
+13 °
Llanfair, Saturday, 10 October
Light rain. High 13°C, low 11°C.
Pressure1012 mb
Wind21 mph W
Humidity74%
Visibility6.2 mi
Dew point8°C
Sun, 11+10 ° /12 °0.3
+12 °
Llanfair, Sunday, 11 October
Light rain. High 12°C, low 10°C.
Pressure1014 mb
Wind7 mph W
Humidity74%
Visibility6.2 mi
Dew point7°C
Mon, 12+11 ° /17 °5.1
+17 °
Llanfair, Monday, 12 October
Light rain. High 17°C, low 11°C.
Pressure1009 mb
Wind18 mph S
Humidity91%
Visibility—
Dew point15°C
Tue, 13+12 ° /16 °8
+16 °
Llanfair, Tuesday, 13 October
Rain. High 16°C, low 12°C.
Pressure1021 mb
Wind22 mph S
Humidity76%
Visibility—
Dew point10°C
Wed, 14+12 ° /14 °1.4
+14 °
Llanfair, Wednesday, 14 October
Light rain. High 14°C, low 12°C.
Pressure1029 mb
Wind14 mph SW
Humidity90%
Visibility—
Dew point12°C
Thu, 15+10 ° /14 °5.1
+14 °
Llanfair, Thursday, 15 October
Rain. High 14°C, low 10°C.
Pressure1018 mb
Wind19 mph S
Humidity94%
Visibility—
Dew point11°C
Fri, 16+9 ° /12 °0
+12 °
Llanfair, Friday, 16 October
Overcast. High 12°C, low 9°C.
Pressure1025 mb
Wind7 mph NW
Humidity70%
Visibility—
Dew point6°C
Sat, 17+7 ° /13 °3.7
+13 °
Llanfair, Saturday, 17 October
Light rain. High 13°C, low 7°C.
Pressure1010 mb
Wind13 mph S
Humidity89%
Visibility—
Dew point11°C
Sun, 18+6 ° /14 °1.1
+14 °
Llanfair, Sunday, 18 October
Light rain. High 14°C, low 6°C.
Pressure1012 mb
Wind30 mph S
Humidity65%
Visibility—
Dew point4°C
Mon, 19+9 ° /14 °28.6
+14 °
Llanfair, Monday, 19 October
Rain. High 14°C, low 9°C.
Pressure995 mb
Wind27 mph SW
Humidity74%
Visibility—
Dew point6°C
Tue, 20+9 ° /11 °18.8
+11 °
Llanfair, Tuesday, 20 October
Rain. High 11°C, low 9°C.
Pressure995 mb
Wind28 mph SW
Humidity70%
Visibility—
Dew point5°C
Wed, 21+8 ° /11 °7.7
+11 °
Llanfair, Wednesday, 21 October
Light rain. High 11°C, low 8°C.
Pressure1006 mb
Wind17 mph W
Humidity71%
Visibility—
Dew point5°C
Thu, 22+9 ° /13 °8.9
+13 °
Llanfair, Thursday, 22 October
Rain. High 13°C, low 9°C.
Pressure1005 mb
Wind16 mph SE
Humidity80%
Visibility—
Dew point7°C
Days 17 onward are based on 60-year climate statistics
Fri, 23+8 ° /12 °3.5
+12 °
Llanfair, Friday, 23 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low8°C
Average rainfall3.5 mm
Chance of rain55%
Warmest on record+17° (1996)
Coldest on record+1° (1993)
Sat, 24+8 ° /12 °5.6
+12 °
Llanfair, Saturday, 24 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low8°C
Average rainfall5.6 mm
Chance of rain55%
Warmest on record+17° (1995)
Coldest on record+1° (2002)
Sun, 25+8 ° /12 °6
+12 °
Llanfair, Sunday, 25 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low8°C
Average rainfall6 mm
Chance of rain62%
Warmest on record+16° (2024)
Coldest on record-1° (2010)
Mon, 26+8 ° /12 °4.5
+12 °
Llanfair, Monday, 26 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low8°C
Average rainfall4.5 mm
Chance of rain55%
Warmest on record+16° (2005)
Coldest on record+0° (1997)
Tue, 27+8 ° /12 °6.1
+12 °
Llanfair, Tuesday, 27 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low8°C
Average rainfall6.1 mm
Chance of rain63%
Warmest on record+19° (2005)
Coldest on record+0° (1962)
Wed, 28+8 ° /12 °6.2
+12 °
Llanfair, Wednesday, 28 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low8°C
Average rainfall6.2 mm
Chance of rain62%
Warmest on record+16° (2022)
Coldest on record+2° (2008)
Thu, 29+7 ° /11 °4.8
+11 °
Llanfair, Thursday, 29 October
Climate average for this date — the mean of the last 60 years.
Average high11°C
Average low7°C
Average rainfall4.8 mm
Chance of rain55%
Warmest on record+17° (2022)
Coldest on record0° (1997)
Fri, 30+7 ° /12 °5.1
+12 °
Llanfair, Friday, 30 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low7°C
Average rainfall5.1 mm
Chance of rain62%
Warmest on record+16° (2009)
Coldest on record-1° (1988)
Sat, 31+8 ° /12 °5.8
+12 °
Llanfair, Saturday, 31 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low8°C
Average rainfall5.8 mm
Chance of rain63%
Warmest on record+19° (2014)
Coldest on record-1° (1988)
Sun, 01+7 ° /11 °6.3
+11 °
Llanfair, Sunday, 1 November
Climate average for this date — the mean of the last 60 years.
Average high11°C
Average low7°C
Average rainfall6.3 mm
Chance of rain65%
Warmest on record+17° (2015)
Coldest on record-1° (1988)
Mon, 02+7 ° /11 °6.6
+11 °
Llanfair, Monday, 2 November
Climate average for this date — the mean of the last 60 years.
Average high11°C
Average low7°C
Average rainfall6.6 mm
Chance of rain62%
Warmest on record+16° (2015)
Coldest on record0° (1986)
Tue, 03+7 ° /11 °5.5
+11 °
Llanfair, Tuesday, 3 November
Climate average for this date — the mean of the last 60 years.
Average high11°C
Average low7°C
Average rainfall5.5 mm
Chance of rain65%
Warmest on record+15° (2011)
Coldest on record-2° (2006)
Wed, 04+6 ° /10 °3.9
+10 °
Llanfair, Wednesday, 4 November
Climate average for this date — the mean of the last 60 years.
Average high10°C
Average low6°C
Average rainfall3.9 mm
Chance of rain53%
Warmest on record+14° (2025)
Coldest on record-1° (1968)
Thu, 05+6 ° /11 °5
+11 °
Llanfair, Thursday, 5 November
Climate average for this date — the mean of the last 60 years.
Average high11°C
Average low6°C
Average rainfall5 mm
Chance of rain52%
Warmest on record+18° (2025)
Coldest on record0° (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 Llanfair 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 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.