As of 12:38 BST

Weather in Penrhos

+13°

Penrhos, Wednesday, 7 October, 12:38

Mainly clear. Feels like 12°C. High 13°C, low 10°C.

Pressure1017 mb

Wind18 mph NW

Humidity75%

Visibility6.2 mi

Dew point8°C

Detailed hourly forecast

The month ahead in Penrhos: daytime temperatures averaging +13.8° and +11° overnight — that is 0.3° above the climate average for October. Rain is expected on 11 days (around 68 mm), against a normal of 10 days and 75 mm. The warmest day should be 12 October (+16.2°), the coolest 20 October (+9°).

+13.8°/+11°

Average day / night

+0.3°

Above average

11 / 10

Wet days / normal

68 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+14.6°	+13.7°	+0.9°
17 October – 26 October	+12.4°	+12.8°	-0.4°
27 October – 5 November	near average	+11.9°	—

October records over 66 years

+20.3°10 October 2018All-time high

+1.7°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Pwllheli (3 km away).

Thu, 08+9 ° /14 °

2.9

+14 °

Penrhos, Thursday, 8 October

Light rain. High 14°C, low 9°C.

Pressure1025 mb

Wind11 mph NW

Humidity70%

Visibility6.2 mi

Dew point7°C

Fri, 09+12 ° /15 °

10.3

+15 °

Penrhos, Friday, 9 October

Rain. High 15°C, low 12°C.

Pressure1011 mb

Wind16 mph NW

Humidity89%

Visibility6.2 mi

Dew point12°C

Sat, 10+11 ° /12 °

3.1

+12 °

Penrhos, Saturday, 10 October

Light rain. High 12°C, low 11°C.

Pressure1012 mb

Wind20 mph W

Humidity72%

Visibility6.2 mi

Dew point7°C

Sun, 11+9 ° /13 °

0.1

+13 °

Penrhos, Sunday, 11 October

Light rain. High 13°C, low 9°C.

Pressure1016 mb

Wind6 mph W

Humidity73%

Visibility6.2 mi

Dew point8°C

Mon, 12+12 ° /16 °

+16 °

Penrhos, Monday, 12 October

Light rain. High 16°C, low 12°C.

Pressure1012 mb

Wind21 mph S

Humidity92%

Visibility—

Dew point13°C

Tue, 13+13 ° /16 °

5.8

+16 °

Penrhos, Tuesday, 13 October

Light rain. High 16°C, low 13°C.

Pressure1020 mb

Wind22 mph S

Humidity95%

Visibility—

Dew point15°C

Wed, 14+12 ° /15 °

+15 °

Penrhos, Wednesday, 14 October

Clear sky. High 15°C, low 12°C.

Pressure1030 mb

Wind11 mph N

Humidity67%

Visibility—

Dew point7°C

Thu, 15+13 ° /16 °

+16 °

Penrhos, Thursday, 15 October

Overcast. High 16°C, low 13°C.

Pressure1023 mb

Wind12 mph S

Humidity76%

Visibility—

Dew point11°C

Fri, 16+13 ° /16 °

+16 °

Penrhos, Friday, 16 October

Overcast. High 16°C, low 13°C.

Pressure1011 mb

Wind18 mph S

Humidity70%

Visibility—

Dew point9°C

Sat, 17+11 ° /14 °

14.2

+14 °

Penrhos, Saturday, 17 October

Rain. High 14°C, low 11°C.

Pressure1002 mb

Wind24 mph SE

Humidity83%

Visibility—

Dew point10°C

Sun, 18+11 ° /13 °

12.8

+13 °

Penrhos, Sunday, 18 October

Rain. High 13°C, low 11°C.

Pressure1000 mb

Wind33 mph SE

Humidity77%

Visibility—

Dew point9°C

Mon, 19+10 ° /12 °

1.7

+12 °

Penrhos, Monday, 19 October

Light rain. High 12°C, low 10°C.

Pressure1000 mb

Wind15 mph N

Humidity67%

Visibility—

Dew point6°C

Tue, 20+9 ° /11 °

0.4

+11 °

Penrhos, Tuesday, 20 October

Light rain. High 11°C, low 9°C.

Pressure1002 mb

Wind21 mph N

Humidity68%

Visibility—

Dew point5°C

Wed, 21+11 ° /12 °

2.4

+12 °

Penrhos, Wednesday, 21 October

Light rain. High 12°C, low 11°C.

Pressure1010 mb

Wind29 mph NW

Humidity67%

Visibility—

Dew point5°C

Thu, 22+11 ° /13 °

6.4

+13 °

Penrhos, Thursday, 22 October

Rain. High 13°C, low 11°C.

Pressure1015 mb

Wind24 mph NW

Humidity92%

Visibility—

Dew point10°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+10 ° /13 °

4.5

+13 °

Penrhos, Friday, 23 October

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

Average high13°C

Average low10°C

Average rainfall4.5 mm

Chance of rain65%

Warmest on record+17° (2011)

Coldest on record+5° (1964)

Sat, 24+10 ° /13 °

5.7

+13 °

Penrhos, Saturday, 24 October

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

Average high13°C

Average low10°C

Average rainfall5.7 mm

Chance of rain65%

Warmest on record+17° (1995)

Coldest on record+5° (1987)

Sun, 25+10 ° /13 °

6.6

+13 °

Penrhos, Sunday, 25 October

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

Average high13°C

Average low10°C

Average rainfall6.6 mm

Chance of rain67%

Warmest on record+16° (2006)

Coldest on record+5° (2010)

Mon, 26+10 ° /13 °

4.8

+13 °

Penrhos, Monday, 26 October

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

Average high13°C

Average low10°C

Average rainfall4.8 mm

Chance of rain67%

Warmest on record+16° (2005)

Coldest on record+5° (2012)

Tue, 27+10 ° /13 °

6.7

+13 °

Penrhos, Tuesday, 27 October

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

Average high13°C

Average low10°C

Average rainfall6.7 mm

Chance of rain62%

Warmest on record+18° (2005)

Coldest on record+5° (2012)

Wed, 28+10 ° /12 °

6.4

+12 °

Penrhos, Wednesday, 28 October

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

Average high12°C

Average low10°C

Average rainfall6.4 mm

Chance of rain65%

Warmest on record+17° (2005)

Coldest on record+4° (2008)

Thu, 29+9 ° /12 °

4.6

+12 °

Penrhos, Thursday, 29 October

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

Average high12°C

Average low9°C

Average rainfall4.6 mm

Chance of rain62%

Warmest on record+17° (2022)

Coldest on record+3° (2018)

Fri, 30+9 ° /12 °

5.5

+12 °

Penrhos, Friday, 30 October

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

Average high12°C

Average low9°C

Average rainfall5.5 mm

Chance of rain68%

Warmest on record+16° (2005)

Coldest on record+2° (2018)

Sat, 31+10 ° /12 °

6.4

+12 °

Penrhos, Saturday, 31 October

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

Average high12°C

Average low10°C

Average rainfall6.4 mm

Chance of rain67%

Warmest on record+18° (2014)

Coldest on record+4° (1988)

Sun, 01+9 ° /12 °

+12 °

Penrhos, Sunday, 1 November

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

Average high12°C

Average low9°C

Average rainfall7 mm

Chance of rain68%

Warmest on record+15° (2020)

Coldest on record+4° (1988)

Mon, 02+9 ° /12 °

6.8

+12 °

Penrhos, Monday, 2 November

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

Average high12°C

Average low9°C

Average rainfall6.8 mm

Chance of rain67%

Warmest on record+15° (2005)

Coldest on record+4° (1986)

Tue, 03+9 ° /11 °

6.8

+11 °

Penrhos, Tuesday, 3 November

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

Average high11°C

Average low9°C

Average rainfall6.8 mm

Chance of rain72%

Warmest on record+15° (2011)

Coldest on record+2° (1980)

Wed, 04+9 ° /11 °

4.8

+11 °

Penrhos, Wednesday, 4 November

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

Average high11°C

Average low9°C

Average rainfall4.8 mm

Chance of rain65%

Warmest on record+14° (2010)

Coldest on record+4° (1988)

Thu, 05+9 ° /11 °

5.4

+11 °

Penrhos, Thursday, 5 November

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

Average high11°C

Average low9°C

Average rainfall5.4 mm

Chance of rain58%

Warmest on record+15° (2025)

Coldest on record+5° (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 Penrhos 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 Penrhos 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.