As of 16:09 BST

Weather in St Donat's / Sain Dunwyd

+14°

St Donat's / Sain Dunwyd, Thursday, 8 October, 16:09

Overcast. Feels like 13°C. High 14°C, low 7°C.

Pressure1024 mb

Wind14 mph W

Humidity62%

Visibility6.2 mi

Dew point7°C

Detailed hourly forecast

The month ahead in St Donat's / Sain Dunwyd: daytime temperatures averaging +14.6° and +11.1° overnight — that is 0.7° above the climate average for October. Rain is expected on 10 days (around 50 mm), against a normal of 7 days and 58 mm. The warmest day should be 13 October (+18°), the coolest 8 October (+7.4°).

+14.6°/+11.1°

Average day / night

+0.7°

Above average

10 / 7

Wet days / normal

50 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+15.1°	+14.2°	+0.8°
18 October – 27 October	+13.9°	+13.1°	+0.7°
28 October – 6 November	near average	+12°	—

October records over 66 years

+22.8°1 October 2011All-time high

-0.5°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Pencoed (13.3 km away).

Fri, 09+13 ° /17 °

7.6

+17 °

St Donat's / Sain Dunwyd, Friday, 9 October

Rain. High 17°C, low 13°C.

Pressure1012 mb

Wind34 mph W

Humidity90%

Visibility6.2 mi

Dew point15°C

Sat, 10+12 ° /14 °

0.1

+14 °

St Donat's / Sain Dunwyd, Saturday, 10 October

Light rain. High 14°C, low 12°C.

Pressure1016 mb

Wind26 mph NW

Humidity69%

Visibility6.2 mi

Dew point8°C

Sun, 11+11 ° /14 °

+14 °

St Donat's / Sain Dunwyd, Sunday, 11 October

Overcast. High 14°C, low 11°C.

Pressure1014 mb

Wind3 mph S

Humidity75%

Visibility6.2 mi

Dew point8°C

Mon, 12+14 ° /17 °

4.2

+17 °

St Donat's / Sain Dunwyd, Monday, 12 October

Light rain. High 17°C, low 14°C.

Pressure1013 mb

Wind12 mph SE

Humidity89%

Visibility6.2 mi

Dew point16°C

Tue, 13+15 ° /18 °

1.6

+18 °

St Donat's / Sain Dunwyd, Tuesday, 13 October

Light rain. High 18°C, low 15°C.

Pressure1020 mb

Wind22 mph W

Humidity93%

Visibility—

Dew point16°C

Wed, 14+12 ° /17 °

1.9

+17 °

St Donat's / Sain Dunwyd, Wednesday, 14 October

Light rain. High 17°C, low 12°C.

Pressure1021 mb

Wind24 mph NW

Humidity65%

Visibility—

Dew point11°C

Thu, 15+10 ° /13 °

2.3

+13 °

St Donat's / Sain Dunwyd, Thursday, 15 October

Light rain. High 13°C, low 10°C.

Pressure1022 mb

Wind21 mph W

Humidity63%

Visibility—

Dew point6°C

Fri, 16+10 ° /12 °

6.5

+12 °

St Donat's / Sain Dunwyd, Friday, 16 October

Light rain. High 12°C, low 10°C.

Pressure1022 mb

Wind16 mph E

Humidity84%

Visibility—

Dew point8°C

Sat, 17+10 ° /14 °

1.7

+14 °

St Donat's / Sain Dunwyd, Saturday, 17 October

Light rain. High 14°C, low 10°C.

Pressure1021 mb

Wind18 mph E

Humidity74%

Visibility—

Dew point7°C

Sun, 18+13 ° /14 °

+14 °

St Donat's / Sain Dunwyd, Sunday, 18 October

Rain. High 14°C, low 13°C.

Pressure1019 mb

Wind20 mph NE

Humidity93%

Visibility—

Dew point13°C

Mon, 19+11 ° /12 °

3.3

+12 °

St Donat's / Sain Dunwyd, Monday, 19 October

Light rain. High 12°C, low 11°C.

Pressure1029 mb

Wind16 mph NE

Humidity86%

Visibility—

Dew point10°C

Tue, 20+9 ° /14 °

+14 °

St Donat's / Sain Dunwyd, Tuesday, 20 October

Mainly clear. High 14°C, low 9°C.

Pressure1032 mb

Wind14 mph E

Humidity70%

Visibility—

Dew point7°C

Wed, 21+10 ° /14 °

+14 °

St Donat's / Sain Dunwyd, Wednesday, 21 October

Partly cloudy. High 14°C, low 10°C.

Pressure1031 mb

Wind13 mph E

Humidity74%

Visibility—

Dew point8°C

Thu, 22+10 ° /14 °

+14 °

St Donat's / Sain Dunwyd, Thursday, 22 October

Mainly clear. High 14°C, low 10°C.

Pressure1026 mb

Wind11 mph E

Humidity75%

Visibility—

Dew point8°C

Fri, 23+9 ° /15 °

+15 °

St Donat's / Sain Dunwyd, Friday, 23 October

Clear sky. High 15°C, low 9°C.

Pressure1018 mb

Wind9 mph E

Humidity70%

Visibility—

Dew point8°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+9 ° /13 °

5.1

+13 °

St Donat's / Sain Dunwyd, Saturday, 24 October

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

Average high13°C

Average low9°C

Average rainfall5.1 mm

Chance of rain57%

Warmest on record+17° (1995)

Coldest on record+1° (1987)

Sun, 25+9 ° /13 °

3.9

+13 °

St Donat's / Sain Dunwyd, Sunday, 25 October

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

Average high13°C

Average low9°C

Average rainfall3.9 mm

Chance of rain55%

Warmest on record+16° (2013)

Coldest on record0° (2010)

Mon, 26+9 ° /13 °

3.3

+13 °

St Donat's / Sain Dunwyd, Monday, 26 October

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

Average high13°C

Average low9°C

Average rainfall3.3 mm

Chance of rain50%

Warmest on record+17° (2005)

Coldest on record+4° (2003)

Tue, 27+9 ° /13 °

4.5

+13 °

St Donat's / Sain Dunwyd, Tuesday, 27 October

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

Average high13°C

Average low9°C

Average rainfall4.5 mm

Chance of rain53%

Warmest on record+19° (2022)

Coldest on record+1° (2003)

Wed, 28+9 ° /13 °

4.9

+13 °

St Donat's / Sain Dunwyd, Wednesday, 28 October

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

Average high13°C

Average low9°C

Average rainfall4.9 mm

Chance of rain53%

Warmest on record+18° (2014)

Coldest on record+2° (2018)

Thu, 29+8 ° /12 °

4.2

+12 °

St Donat's / Sain Dunwyd, Thursday, 29 October

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

Average high12°C

Average low8°C

Average rainfall4.2 mm

Chance of rain47%

Warmest on record+18° (2022)

Coldest on record+0° (2018)

Fri, 30+8 ° /13 °

4.5

+13 °

St Donat's / Sain Dunwyd, Friday, 30 October

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

Average high13°C

Average low8°C

Average rainfall4.5 mm

Chance of rain58%

Warmest on record+17° (2015)

Coldest on record0° (2018)

Sat, 31+9 ° /13 °

5.5

+13 °

St Donat's / Sain Dunwyd, Saturday, 31 October

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

Average high13°C

Average low9°C

Average rainfall5.5 mm

Chance of rain60%

Warmest on record+19° (2014)

Coldest on record+1° (1992)

Sun, 01+8 ° /12 °

4.2

+12 °

St Donat's / Sain Dunwyd, Sunday, 1 November

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

Average high12°C

Average low8°C

Average rainfall4.2 mm

Chance of rain53%

Warmest on record+16° (2020)

Coldest on record+2° (1988)

Mon, 02+8 ° /12 °

5.5

+12 °

St Donat's / Sain Dunwyd, Monday, 2 November

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

Average high12°C

Average low8°C

Average rainfall5.5 mm

Chance of rain62%

Warmest on record+17° (2005)

Coldest on record+0° (2006)

Tue, 03+8 ° /12 °

3.9

+12 °

St Donat's / Sain Dunwyd, Tuesday, 3 November

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

Average high12°C

Average low8°C

Average rainfall3.9 mm

Chance of rain53%

Warmest on record+15° (2011)

Coldest on record-1° (2006)

Wed, 04+7 ° /11 °

+11 °

St Donat's / Sain Dunwyd, Wednesday, 4 November

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

Average high11°C

Average low7°C

Average rainfall3 mm

Chance of rain47%

Warmest on record+15° (1973)

Coldest on record0° (2006)

Thu, 05+7 ° /11 °

+11 °

St Donat's / Sain Dunwyd, Thursday, 5 November

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

Average high11°C

Average low7°C

Average rainfall3 mm

Chance of rain40%

Warmest on record+16° (2025)

Coldest on record+1° (2021)

Fri, 06+7 ° /11 °

+11 °

St Donat's / Sain Dunwyd, Friday, 6 November

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

Average high11°C

Average low7°C

Average rainfall3 mm

Chance of rain45%

Warmest on record+16° (2015)

Coldest on record+2° (2017)

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 St Donat's / Sain Dunwyd 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 St Donat's / Sain Dunwyd 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.