As of 11:32 BST

Weather in Coed Ystumgwern

+15°

Coed Ystumgwern, Thursday, 8 October, 11:32

Overcast. Feels like 14°C. High 15°C, low 8°C.

Pressure1023 mb

Wind3 mph S

Humidity69%

Visibility6.2 mi

Dew point9°C

Detailed hourly forecast

The month ahead in Coed Ystumgwern: daytime temperatures averaging +14.2° and +10.5° overnight — that is 1.3° above the climate average for October. Rain is expected on 9 days (around 51 mm), against a normal of 9 days and 67 mm. The warmest day should be 13 October (+17.1°), the coolest 17 October (+5.7°).

+14.2°/+10.5°

Average day / night

+1.3°

Above average

9 / 9

Wet days / normal

51 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+14.4°	+13.3°	+1.1°
18 October – 27 October	+13.9°	+12.2°	+1.8°
28 October – 6 November	near average	+11.1°	—

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 (7.3 km away).

Fri, 09+12 ° /16 °

10.5

+16 °

Coed Ystumgwern, Friday, 9 October

Rain. High 16°C, low 12°C.

Pressure1009 mb

Wind23 mph NW

Humidity89%

Visibility6.2 mi

Dew point14°C

Sat, 10+12 ° /13 °

3.3

+13 °

Coed Ystumgwern, Saturday, 10 October

Light rain. High 13°C, low 12°C.

Pressure1015 mb

Wind23 mph W

Humidity72%

Visibility6.2 mi

Dew point7°C

Sun, 11+12 ° /14 °

0.1

+14 °

Coed Ystumgwern, Sunday, 11 October

Light rain. High 14°C, low 12°C.

Pressure1013 mb

Wind6 mph SW

Humidity68%

Visibility6.2 mi

Dew point7°C

Mon, 12+13 ° /17 °

2.3

+17 °

Coed Ystumgwern, Monday, 12 October

Light rain. High 17°C, low 13°C.

Pressure1011 mb

Wind18 mph S

Humidity92%

Visibility—

Dew point15°C

Tue, 13+15 ° /17 °

2.2

+17 °

Coed Ystumgwern, Tuesday, 13 October

Light rain. High 17°C, low 15°C.

Pressure1021 mb

Wind21 mph S

Humidity84%

Visibility—

Dew point14°C

Wed, 14+12 ° /16 °

9.4

+16 °

Coed Ystumgwern, Wednesday, 14 October

Rain. High 16°C, low 12°C.

Pressure1019 mb

Wind19 mph S

Humidity86%

Visibility—

Dew point13°C

Thu, 15+10 ° /12 °

8.5

+12 °

Coed Ystumgwern, Thursday, 15 October

Rain. High 12°C, low 10°C.

Pressure1024 mb

Wind18 mph NW

Humidity74%

Visibility—

Dew point7°C

Fri, 16+8 ° /12 °

0.4

+12 °

Coed Ystumgwern, Friday, 16 October

Light rain. High 12°C, low 8°C.

Pressure1024 mb

Wind11 mph N

Humidity68%

Visibility—

Dew point6°C

Sat, 17+6 ° /12 °

+12 °

Coed Ystumgwern, Saturday, 17 October

Clear sky. High 12°C, low 6°C.

Pressure1017 mb

Wind10 mph E

Humidity58%

Visibility—

Dew point2°C

Sun, 18+8 ° /12 °

0.7

+12 °

Coed Ystumgwern, Sunday, 18 October

Light rain. High 12°C, low 8°C.

Pressure1018 mb

Wind10 mph N

Humidity72%

Visibility—

Dew point7°C

Mon, 19+11 ° /14 °

0.2

+14 °

Coed Ystumgwern, Monday, 19 October

Light rain. High 14°C, low 11°C.

Pressure1027 mb

Wind22 mph NE

Humidity73%

Visibility—

Dew point9°C

Tue, 20+10 ° /14 °

1.3

+14 °

Coed Ystumgwern, Tuesday, 20 October

Light rain. High 14°C, low 10°C.

Pressure1020 mb

Wind18 mph E

Humidity82%

Visibility—

Dew point10°C

Wed, 21+12 ° /14 °

2.6

+14 °

Coed Ystumgwern, Wednesday, 21 October

Light rain. High 14°C, low 12°C.

Pressure1017 mb

Wind9 mph E

Humidity82%

Visibility—

Dew point10°C

Thu, 22+11 ° /15 °

+15 °

Coed Ystumgwern, Thursday, 22 October

Partly cloudy. High 15°C, low 11°C.

Pressure1024 mb

Wind8 mph N

Humidity79%

Visibility—

Dew point11°C

Fri, 23+11 ° /13 °

+13 °

Coed Ystumgwern, Friday, 23 October

Overcast. High 13°C, low 11°C.

Pressure1032 mb

Wind11 mph N

Humidity79%

Visibility—

Dew point10°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+8 ° /12 °

5.6

+12 °

Coed Ystumgwern, 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 °

+12 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

Coed Ystumgwern, 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 °

+11 °

Coed Ystumgwern, 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)

Fri, 06+6 ° /10 °

3.8

+10 °

Coed Ystumgwern, Friday, 6 November

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

Average high10°C

Average low6°C

Average rainfall3.8 mm

Chance of rain53%

Warmest on record+16° (2025)

Coldest on record+1° (1964)

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 Coed Ystumgwern 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 Coed Ystumgwern 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.