As of 15:44 BST

Weather in Bontnewydd

+12°

Bontnewydd, Wednesday, 7 October, 15:44

Partly cloudy. Feels like 11°C. High 12°C, low 9°C.

Pressure1017 mb

Wind18 mph NW

Humidity72%

Visibility6.2 mi

Dew point7°C

Detailed hourly forecast

The month ahead in Bontnewydd: daytime temperatures averaging +12.7° and +7.3° overnight — that is 1.1° below the climate average for October. Rain is expected on 12 days (around 77 mm), against a normal of 8 days and 62 mm. The warmest day should be 12 October (+17.2°), the coolest 18 October (+3.2°).

+12.7°/+7.3°

Average day / night

−1.1°

Below average

12 / 8

Wet days / normal

77 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+13.7°	+14.1°	-0.4°
17 October – 26 October	+11°	+12.9°	-1.9°
27 October – 5 November	near average	+11.9°	—

October records over 66 years

+24.3°1 October 2011All-time high

-2.6°19 October 1993All-time low

Climate averages and records are calculated from the nearest reference point — Penparcau (14.8 km away).

Thu, 08+8 ° /14 °

2.3

+14 °

Bontnewydd, Thursday, 8 October

Light rain. High 14°C, low 8°C.

Pressure1025 mb

Wind12 mph NW

Humidity72%

Visibility6.2 mi

Dew point7°C

Fri, 09+12 ° /15 °

12.3

+15 °

Bontnewydd, Friday, 9 October

Rain. High 15°C, low 12°C.

Pressure1011 mb

Wind20 mph W

Humidity93%

Visibility3.0 mi

Dew point13°C

Sat, 10+10 ° /12 °

3.6

+12 °

Bontnewydd, Saturday, 10 October

Light rain. High 12°C, low 10°C.

Pressure1013 mb

Wind22 mph W

Humidity72%

Visibility6.2 mi

Dew point7°C

Sun, 11+9 ° /12 °

0.7

+12 °

Bontnewydd, Sunday, 11 October

Light rain. High 12°C, low 9°C.

Pressure1015 mb

Wind7 mph W

Humidity69%

Visibility6.2 mi

Dew point6°C

Mon, 12+10 ° /17 °

1.8

+17 °

Bontnewydd, Monday, 12 October

Light rain. High 17°C, low 10°C.

Pressure1009 mb

Wind21 mph SE

Humidity91%

Visibility—

Dew point14°C

Tue, 13+9 ° /16 °

5.9

+16 °

Bontnewydd, Tuesday, 13 October

Light rain. High 16°C, low 9°C.

Pressure1022 mb

Wind17 mph SW

Humidity80%

Visibility—

Dew point10°C

Wed, 14+8 ° /15 °

+15 °

Bontnewydd, Wednesday, 14 October

Partly cloudy. High 15°C, low 8°C.

Pressure1029 mb

Wind11 mph SW

Humidity68%

Visibility—

Dew point8°C

Thu, 15+7 ° /13 °

3.1

+13 °

Bontnewydd, Thursday, 15 October

Light rain. High 13°C, low 7°C.

Pressure1018 mb

Wind16 mph S

Humidity95%

Visibility—

Dew point11°C

Fri, 16+5 ° /11 °

+11 °

Bontnewydd, Friday, 16 October

Overcast. High 11°C, low 5°C.

Pressure1025 mb

Wind8 mph SE

Humidity64%

Visibility—

Dew point3°C

Sat, 17+4 ° /13 °

+13 °

Bontnewydd, Saturday, 17 October

Light rain. High 13°C, low 4°C.

Pressure1011 mb

Wind15 mph NW

Humidity74%

Visibility—

Dew point7°C

Sun, 18+3 ° /12 °

0.6

+12 °

Bontnewydd, Sunday, 18 October

Light rain. High 12°C, low 3°C.

Pressure1012 mb

Wind26 mph S

Humidity63%

Visibility—

Dew point3°C

Mon, 19+7 ° /12 °

15.2

+12 °

Bontnewydd, Monday, 19 October

Rain. High 12°C, low 7°C.

Pressure997 mb

Wind22 mph S

Humidity79%

Visibility—

Dew point5°C

Tue, 20+6 ° /9 °

9.1

+9 °

Bontnewydd, Tuesday, 20 October

Light rain. High 9°C, low 6°C.

Pressure996 mb

Wind17 mph SW

Humidity73%

Visibility—

Dew point4°C

Wed, 21+5 ° /9 °

9.4

+9 °

Bontnewydd, Wednesday, 21 October

Light rain. High 9°C, low 5°C.

Pressure1007 mb

Wind15 mph W

Humidity70%

Visibility—

Dew point4°C

Thu, 22+5 ° /11 °

8.8

+11 °

Bontnewydd, Thursday, 22 October

Rain. High 11°C, low 5°C.

Pressure1005 mb

Wind26 mph SE

Humidity81%

Visibility—

Dew point6°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+9 ° /13 °

3.2

+13 °

Bontnewydd, Friday, 23 October

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

Average high13°C

Average low9°C

Average rainfall3.2 mm

Chance of rain53%

Warmest on record+18° (2011)

Coldest on record+0° (1993)

Sat, 24+8 ° /13 °

+13 °

Bontnewydd, Saturday, 24 October

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

Average high13°C

Average low8°C

Average rainfall5 mm

Chance of rain57%

Warmest on record+17° (1995)

Coldest on record+1° (1987)

Sun, 25+8 ° /13 °

5.4

+13 °

Bontnewydd, Sunday, 25 October

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

Average high13°C

Average low8°C

Average rainfall5.4 mm

Chance of rain60%

Warmest on record+16° (2024)

Coldest on record-2° (2010)

Mon, 26+8 ° /13 °

3.8

+13 °

Bontnewydd, Monday, 26 October

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

Average high13°C

Average low8°C

Average rainfall3.8 mm

Chance of rain52%

Warmest on record+17° (2005)

Coldest on record+0° (1997)

Tue, 27+8 ° /13 °

5.1

+13 °

Bontnewydd, Tuesday, 27 October

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

Average high13°C

Average low8°C

Average rainfall5.1 mm

Chance of rain57%

Warmest on record+19° (2005)

Coldest on record0° (2003)

Wed, 28+8 ° /12 °

5.3

+12 °

Bontnewydd, Wednesday, 28 October

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

Average high12°C

Average low8°C

Average rainfall5.3 mm

Chance of rain63%

Warmest on record+17° (2014)

Coldest on record+1° (2008)

Thu, 29+7 ° /12 °

4.2

+12 °

Bontnewydd, Thursday, 29 October

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

Average high12°C

Average low7°C

Average rainfall4.2 mm

Chance of rain57%

Warmest on record+18° (2022)

Coldest on record0° (1983)

Fri, 30+8 ° /12 °

4.7

+12 °

Bontnewydd, Friday, 30 October

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

Average high12°C

Average low8°C

Average rainfall4.7 mm

Chance of rain58%

Warmest on record+17° (2015)

Coldest on record0° (2018)

Sat, 31+8 ° /13 °

5.2

+13 °

Bontnewydd, Saturday, 31 October

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

Average high13°C

Average low8°C

Average rainfall5.2 mm

Chance of rain67%

Warmest on record+19° (2014)

Coldest on record0° (1988)

Sun, 01+8 ° /12 °

5.2

+12 °

Bontnewydd, Sunday, 1 November

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

Average high12°C

Average low8°C

Average rainfall5.2 mm

Chance of rain62%

Warmest on record+17° (2015)

Coldest on record-1° (1988)

Mon, 02+7 ° /12 °

6.2

+12 °

Bontnewydd, Monday, 2 November

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

Average high12°C

Average low7°C

Average rainfall6.2 mm

Chance of rain60%

Warmest on record+16° (2005)

Coldest on record-1° (1986)

Tue, 03+7 ° /11 °

+11 °

Bontnewydd, Tuesday, 3 November

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

Average high11°C

Average low7°C

Average rainfall5 mm

Chance of rain68%

Warmest on record+16° (2011)

Coldest on record-2° (2006)

Wed, 04+7 ° /11 °

3.5

+11 °

Bontnewydd, Wednesday, 4 November

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

Average high11°C

Average low7°C

Average rainfall3.5 mm

Chance of rain55%

Warmest on record+15° (2025)

Coldest on record-2° (1968)

Thu, 05+7 ° /11 °

4.7

+11 °

Bontnewydd, Thursday, 5 November

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

Average high11°C

Average low7°C

Average rainfall4.7 mm

Chance of rain52%

Warmest on record+18° (2025)

Coldest on record-1° (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 Bontnewydd 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 Bontnewydd 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.