As of 00:50 BST

Weather in Bryn Celyn

+10°

Bryn Celyn, Thursday, 8 October, 00:50

Partly cloudy. Feels like 9°C. High 13°C, low 9°C.

Pressure1018 mb

Wind9 mph NW

Humidity78%

Visibility6.1 mi

Dew point6°C

Detailed hourly forecast

The month ahead in Bryn Celyn: daytime temperatures averaging +13.5° and +8.7° overnight — that is 0.5° above the climate average for October. Rain is expected on 11 days (around 70 mm), against a normal of 7 days and 37 mm. The warmest day should be 13 October (+18.3°), the coolest 18 October (+4.8°).

+13.5°/+8.7°

Average day / night

+0.5°

Above average

11 / 7

Wet days / normal

70 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+14.8°	+13.5°	+1.3°
18 October – 27 October	+11.5°	+12.3°	-0.8°
28 October – 6 November	near average	+11.1°	—

October records over 66 years

+24.5°1 October 2011All-time high

-1.2°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Heswall (9.7 km away).

Fri, 09+12 ° /16 °

8.5

+16 °

Bryn Celyn, Friday, 9 October

Rain. High 16°C, low 12°C.

Pressure1008 mb

Wind20 mph W

Humidity85%

Visibility6.2 mi

Dew point12°C

Sat, 10+11 ° /13 °

7.5

+13 °

Bryn Celyn, Saturday, 10 October

Rain. High 13°C, low 11°C.

Pressure1012 mb

Wind21 mph W

Humidity79%

Visibility4.3 mi

Dew point8°C

Sun, 11+9 ° /14 °

0.9

+14 °

Bryn Celyn, Sunday, 11 October

Light rain. High 14°C, low 9°C.

Pressure1014 mb

Wind12 mph W

Humidity74%

Visibility6.2 mi

Dew point8°C

Mon, 12+9 ° /18 °

+18 °

Bryn Celyn, Monday, 12 October

Overcast. High 18°C, low 9°C.

Pressure1013 mb

Wind13 mph SE

Humidity81%

Visibility—

Dew point12°C

Tue, 13+9 ° /18 °

1.2

+18 °

Bryn Celyn, Tuesday, 13 October

Light rain. High 18°C, low 9°C.

Pressure1019 mb

Wind15 mph SW

Humidity80%

Visibility—

Dew point12°C

Wed, 14+8 ° /17 °

+17 °

Bryn Celyn, Wednesday, 14 October

Overcast. High 17°C, low 8°C.

Pressure1024 mb

Wind13 mph SW

Humidity72%

Visibility—

Dew point11°C

Thu, 15+7 ° /15 °

+15 °

Bryn Celyn, Thursday, 15 October

Rain. High 15°C, low 7°C.

Pressure1017 mb

Wind15 mph W

Humidity81%

Visibility—

Dew point8°C

Fri, 16+6 ° /13 °

+13 °

Bryn Celyn, Friday, 16 October

Mainly clear. High 13°C, low 6°C.

Pressure1019 mb

Wind6 mph SW

Humidity51%

Visibility—

Dew point2°C

Sat, 17+8 ° /11 °

10.6

+11 °

Bryn Celyn, Saturday, 17 October

Rain. High 11°C, low 8°C.

Pressure1010 mb

Wind17 mph W

Humidity74%

Visibility—

Dew point6°C

Sun, 18+5 ° /11 °

0.7

+11 °

Bryn Celyn, Sunday, 18 October

Light rain. High 11°C, low 5°C.

Pressure1026 mb

Wind13 mph SW

Humidity55%

Visibility—

Dew point2°C

Mon, 19+12 ° /14 °

6.8

+14 °

Bryn Celyn, Monday, 19 October

Light rain. High 14°C, low 12°C.

Pressure1007 mb

Wind24 mph NW

Humidity94%

Visibility—

Dew point13°C

Tue, 20+12 ° /17 °

2.6

+17 °

Bryn Celyn, Tuesday, 20 October

Light rain. High 17°C, low 12°C.

Pressure1011 mb

Wind27 mph W

Humidity63%

Visibility—

Dew point10°C

Wed, 21+8 ° /10 °

3.6

+10 °

Bryn Celyn, Wednesday, 21 October

Light rain. High 10°C, low 8°C.

Pressure1007 mb

Wind26 mph W

Humidity82%

Visibility—

Dew point6°C

Thu, 22+7 ° /8 °

11.3

+8 °

Bryn Celyn, Thursday, 22 October

Light rain. High 8°C, low 7°C.

Pressure993 mb

Wind21 mph NW

Humidity85%

Visibility—

Dew point5°C

Fri, 23+7 ° /9 °

9.2

+9 °

Bryn Celyn, Friday, 23 October

Rain. High 9°C, low 7°C.

Pressure1004 mb

Wind19 mph N

Humidity70%

Visibility—

Dew point3°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+8 ° /12 °

2.5

+12 °

Bryn Celyn, Saturday, 24 October

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

Average high12°C

Average low8°C

Average rainfall2.5 mm

Chance of rain43%

Warmest on record+17° (1996)

Coldest on record+1° (1982)

Sun, 25+8 ° /12 °

+12 °

Bryn Celyn, Sunday, 25 October

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

Average high12°C

Average low8°C

Average rainfall3 mm

Chance of rain50%

Warmest on record+16° (2022)

Coldest on record0° (2010)

Mon, 26+8 ° /12 °

2.5

+12 °

Bryn Celyn, Monday, 26 October

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

Average high12°C

Average low8°C

Average rainfall2.5 mm

Chance of rain35%

Warmest on record+17° (2005)

Coldest on record+1° (1997)

Tue, 27+8 ° /12 °

3.1

+12 °

Bryn Celyn, Tuesday, 27 October

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

Average high12°C

Average low8°C

Average rainfall3.1 mm

Chance of rain50%

Warmest on record+18° (2005)

Coldest on record+1° (1962)

Wed, 28+7 ° /12 °

2.5

+12 °

Bryn Celyn, Wednesday, 28 October

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

Average high12°C

Average low7°C

Average rainfall2.5 mm

Chance of rain50%

Warmest on record+17° (2024)

Coldest on record+2° (2008)

Thu, 29+7 ° /11 °

2.1

+11 °

Bryn Celyn, Thursday, 29 October

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

Average high11°C

Average low7°C

Average rainfall2.1 mm

Chance of rain37%

Warmest on record+17° (2022)

Coldest on record0° (2018)

Fri, 30+7 ° /12 °

2.3

+12 °

Bryn Celyn, Friday, 30 October

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

Average high12°C

Average low7°C

Average rainfall2.3 mm

Chance of rain47%

Warmest on record+17° (2001)

Coldest on record-1° (2018)

Sat, 31+7 ° /12 °

2.7

+12 °

Bryn Celyn, Saturday, 31 October

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

Average high12°C

Average low7°C

Average rainfall2.7 mm

Chance of rain47%

Warmest on record+18° (2014)

Coldest on record0° (1988)

Sun, 01+7 ° /11 °

2.9

+11 °

Bryn Celyn, Sunday, 1 November

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

Average high11°C

Average low7°C

Average rainfall2.9 mm

Chance of rain48%

Warmest on record+17° (2020)

Coldest on record-1° (1988)

Mon, 02+7 ° /11 °

3.4

+11 °

Bryn Celyn, Monday, 2 November

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

Average high11°C

Average low7°C

Average rainfall3.4 mm

Chance of rain53%

Warmest on record+17° (2005)

Coldest on record+1° (1986)

Tue, 03+7 ° /11 °

2.8

+11 °

Bryn Celyn, Tuesday, 3 November

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

Average high11°C

Average low7°C

Average rainfall2.8 mm

Chance of rain53%

Warmest on record+16° (1979)

Coldest on record+0° (1985)

Wed, 04+6 ° /10 °

1.8

+10 °

Bryn Celyn, Wednesday, 4 November

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

Average high10°C

Average low6°C

Average rainfall1.8 mm

Chance of rain37%

Warmest on record+16° (2025)

Coldest on record0° (1967)

Thu, 05+6 ° /10 °

2.8

+10 °

Bryn Celyn, Thursday, 5 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+17° (2025)

Coldest on record0° (1965)

Fri, 06+6 ° /10 °

+10 °

Bryn Celyn, Friday, 6 November

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

Average high10°C

Average low6°C

Average rainfall2 mm

Chance of rain47%

Warmest on record+16° (1972)

Coldest on record+0° (1995)

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 Bryn Celyn 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 Bryn Celyn 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.