As of 05:16 BST

Weather in Trefgraig

+11°

Trefgraig, Wednesday, 7 October, 05:16

Overcast. Feels like 11°C. High 14°C, low 11°C.

Pressure1016 mb

Wind23 mph N

Humidity90%

Visibility6.2 mi

Dew point9°C

Detailed hourly forecast

The month ahead in Trefgraig: daytime temperatures averaging +14.6° and +12.5° overnight — that is 1.1° above the climate average for October. Rain is expected on 7 days (around 23 mm), against a normal of 10 days and 75 mm. The warmest day should be 13 October (+16.1°), the coolest 8 October (+10.3°).

+14.6°/+12.5°

Average day / night

+1.1°

Above average

7 / 10

Wet days / normal

23 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+14.5°	+13.7°	+0.8°
17 October – 26 October	+14.6°	+12.8°	+1.8°
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 (18.8 km away).

Thu, 08+10 ° /15 °

2.4

+15 °

Trefgraig, Thursday, 8 October

Light rain. High 15°C, low 10°C.

Pressure1025 mb

Wind13 mph NW

Humidity71%

Visibility6.2 mi

Dew point7°C

Fri, 09+13 ° /15 °

4.5

+15 °

Trefgraig, Friday, 9 October

Light rain. High 15°C, low 13°C.

Pressure1011 mb

Wind22 mph W

Humidity72%

Visibility6.2 mi

Dew point9°C

Sat, 10+12 ° /13 °

3.3

+13 °

Trefgraig, Saturday, 10 October

Light rain. High 13°C, low 12°C.

Pressure1013 mb

Wind25 mph W

Humidity73%

Visibility6.2 mi

Dew point7°C

Sun, 11+12 ° /12 °

0.1

+12 °

Trefgraig, Sunday, 11 October

Light rain. High 12°C, low 12°C.

Pressure1015 mb

Wind20 mph NW

Humidity72%

Visibility—

Dew point7°C

Mon, 12+13 ° /15 °

1.6

+15 °

Trefgraig, Monday, 12 October

Light rain. High 15°C, low 13°C.

Pressure1013 mb

Wind27 mph S

Humidity86%

Visibility—

Dew point12°C

Tue, 13+13 ° /16 °

5.7

+16 °

Trefgraig, Tuesday, 13 October

Rain. High 16°C, low 13°C.

Pressure1018 mb

Wind26 mph S

Humidity94%

Visibility—

Dew point15°C

Wed, 14+13 ° /14 °

+14 °

Trefgraig, Wednesday, 14 October

Overcast. High 14°C, low 13°C.

Pressure1029 mb

Wind15 mph S

Humidity69%

Visibility—

Dew point8°C

Thu, 15+14 ° /15 °

+15 °

Trefgraig, Thursday, 15 October

Overcast. High 15°C, low 14°C.

Pressure1028 mb

Wind18 mph SW

Humidity89%

Visibility—

Dew point13°C

Fri, 16+14 ° /15 °

+15 °

Trefgraig, Friday, 16 October

Overcast. High 15°C, low 14°C.

Pressure1018 mb

Wind27 mph S

Humidity85%

Visibility—

Dew point12°C

Sat, 17+12 ° /16 °

+16 °

Trefgraig, Saturday, 17 October

Light rain. High 16°C, low 12°C.

Pressure1008 mb

Wind31 mph S

Humidity91%

Visibility—

Dew point13°C

Sun, 18+12 ° /16 °

+16 °

Trefgraig, Sunday, 18 October

Overcast. High 16°C, low 12°C.

Pressure1013 mb

Wind20 mph NE

Humidity84%

Visibility—

Dew point12°C

Mon, 19+13 ° /15 °

+15 °

Trefgraig, Monday, 19 October

Clear sky. High 15°C, low 13°C.

Pressure1022 mb

Wind8 mph N

Humidity67%

Visibility—

Dew point8°C

Tue, 20+13 ° /14 °

+14 °

Trefgraig, Tuesday, 20 October

Partly cloudy. High 14°C, low 13°C.

Pressure1031 mb

Wind5 mph E

Humidity71%

Visibility—

Dew point8°C

Wed, 21+13 ° /14 °

+14 °

Trefgraig, Wednesday, 21 October

Partly cloudy. High 14°C, low 13°C.

Pressure1031 mb

Wind7 mph NE

Humidity73%

Visibility—

Dew point9°C

Thu, 22+12 ° /13 °

+13 °

Trefgraig, Thursday, 22 October

Overcast. High 13°C, low 12°C.

Pressure1028 mb

Wind7 mph SE

Humidity67%

Visibility—

Dew point7°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+10 ° /13 °

4.5

+13 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 °

Trefgraig, 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 Trefgraig 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 Trefgraig 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.