As of 17:58 BST

Weather in Ystrad Mynach

+12°Weather now

Ystrad Mynach, Thursday, 8 October, 17:58

Light rain. Feels like 12°C. High 14°C, low 6°C.

Pressure1023 mb
Wind7 mph W
Humidity73%
Visibility6.2 mi
Dew point8°C

The month ahead in Ystrad Mynach: daytime temperatures averaging +13° and +7.3° overnight — that is 0.1° above the climate average for October. Rain is expected on 8 days (around 40 mm), against a normal of 7 days and 57 mm. The warmest day should be 13 October (+15.9°), the coolest 15 October (+4.4°).

+13°/+7.3°
Average day / night
+0.1°
Above average
8 / 7
Wet days / normal
40 mm
Rainfall this month

Ten-day blocks against the climate average

PeriodForecast (day)AverageDifference
8 October – 17 October+13.2°+13.3°-0.2°
18 October – 27 October+12.8°+12.2°+0.6°
28 October – 6 Novembernear average+11°—

October records over 66 years

+23.1°1 October 2011All-time high
-2.8°16 October 1993All-time low

Climate averages and records are calculated from the nearest reference point — Hengoed (0.8 km away).

Fri, 09+9 ° /15 °6.8Rain
+15 °Rain

Ystrad Mynach, Friday, 9 October

Rain. High 15°C, low 9°C.

Pressure1011 mb
Wind21 mph W
Humidity97%
Visibility2.7 mi
Dew point14°C
Sat, 10+8 ° /12 °0Overcast
+12 °Overcast

Ystrad Mynach, Saturday, 10 October

Overcast. High 12°C, low 8°C.

Pressure1015 mb
Wind16 mph W
Humidity64%
Visibility6.2 mi
Dew point5°C
Sun, 11+6 ° /12 °0Overcast
+12 °Overcast

Ystrad Mynach, Sunday, 11 October

Overcast. High 12°C, low 6°C.

Pressure1014 mb
Wind4 mph W
Humidity73%
Visibility6.2 mi
Dew point7°C
Mon, 12+10 ° /15 °6.3Light rain
+15 °Light rain

Ystrad Mynach, Monday, 12 October

Light rain. High 15°C, low 10°C.

Pressure1013 mb
Wind11 mph S
Humidity99%
Visibility1.8 mi
Dew point15°C
Tue, 13+10 ° /16 °5.5Light rain
+16 °Light rain

Ystrad Mynach, Tuesday, 13 October

Light rain. High 16°C, low 10°C.

Pressure1019 mb
Wind15 mph SW
Humidity98%
Visibility—
Dew point16°C
Wed, 14+10 ° /16 °2.9Light rain
+16 °Light rain

Ystrad Mynach, Wednesday, 14 October

Light rain. High 16°C, low 10°C.

Pressure1020 mb
Wind18 mph SW
Humidity66%
Visibility—
Dew point9°C
Thu, 15+4 ° /12 °0Mainly clear
+12 °Mainly clear

Ystrad Mynach, Thursday, 15 October

Mainly clear. High 12°C, low 4°C.

Pressure1021 mb
Wind17 mph W
Humidity57%
Visibility—
Dew point3°C
Fri, 16+4 ° /9 °4.8Light rain
+9 °Light rain

Ystrad Mynach, Friday, 16 October

Light rain. High 9°C, low 4°C.

Pressure1023 mb
Wind6 mph E
Humidity82%
Visibility—
Dew point6°C
Sat, 17+8 ° /11 °1.1Light rain
+11 °Light rain

Ystrad Mynach, Saturday, 17 October

Light rain. High 11°C, low 8°C.

Pressure1022 mb
Wind8 mph NE
Humidity70%
Visibility—
Dew point5°C
Sun, 18+9 ° /12 °9.8Light rain
+12 °Light rain

Ystrad Mynach, Sunday, 18 October

Light rain. High 12°C, low 9°C.

Pressure1020 mb
Wind14 mph N
Humidity99%
Visibility—
Dew point12°C
Mon, 19+9 ° /10 °0.9Light rain
+10 °Light rain

Ystrad Mynach, Monday, 19 October

Light rain. High 10°C, low 9°C.

Pressure1029 mb
Wind11 mph N
Humidity90%
Visibility—
Dew point9°C
Tue, 20+5 ° /13 °0Mainly clear
+13 °Mainly clear

Ystrad Mynach, Tuesday, 20 October

Mainly clear. High 13°C, low 5°C.

Pressure1032 mb
Wind11 mph NE
Humidity68%
Visibility—
Dew point6°C
Wed, 21+6 ° /13 °0Overcast
+13 °Overcast

Ystrad Mynach, Wednesday, 21 October

Overcast. High 13°C, low 6°C.

Pressure1031 mb
Wind10 mph E
Humidity70%
Visibility—
Dew point6°C
Thu, 22+7 ° /14 °0Clear sky
+14 °Clear sky

Ystrad Mynach, Thursday, 22 October

Clear sky. High 14°C, low 7°C.

Pressure1026 mb
Wind7 mph E
Humidity66%
Visibility—
Dew point6°C
Fri, 23+6 ° /14 °0Clear sky
+14 °Clear sky

Ystrad Mynach, Friday, 23 October

Clear sky. High 14°C, low 6°C.

Pressure1019 mb
Wind5 mph SE
Humidity63%
Visibility—
Dew point6°C
Days 17 onward are based on 60-year climate statistics
Sat, 24+7 ° /12 °4.6Climate average
+12 °Climate average

Ystrad Mynach, Saturday, 24 October

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

Average high12°C
Average low7°C
Average rainfall4.6 mm
Chance of rain52%
Warmest on record+16° (1995)
Coldest on record0° (1987)
Sun, 25+7 ° /12 °4.2Climate average
+12 °Climate average

Ystrad Mynach, Sunday, 25 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 rain48%
Warmest on record+16° (2013)
Coldest on record-2° (2010)
Mon, 26+7 ° /12 °3.2Climate average
+12 °Climate average

Ystrad Mynach, Monday, 26 October

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

Average high12°C
Average low7°C
Average rainfall3.2 mm
Chance of rain48%
Warmest on record+16° (2005)
Coldest on record+1° (1997)
Tue, 27+7 ° /12 °3.9Climate average
+12 °Climate average

Ystrad Mynach, Tuesday, 27 October

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

Average high12°C
Average low7°C
Average rainfall3.9 mm
Chance of rain48%
Warmest on record+18° (2022)
Coldest on record-1° (1962)
Wed, 28+7 ° /12 °4.9Climate average
+12 °Climate average

Ystrad Mynach, Wednesday, 28 October

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

Average high12°C
Average low7°C
Average rainfall4.9 mm
Chance of rain52%
Warmest on record+17° (2014)
Coldest on record0° (2012)
Thu, 29+6 ° /11 °3.9Climate average
+11 °Climate average

Ystrad Mynach, Thursday, 29 October

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

Average high11°C
Average low6°C
Average rainfall3.9 mm
Chance of rain45%
Warmest on record+16° (2022)
Coldest on record-2° (2008)
Fri, 30+7 ° /12 °4.4Climate average
+12 °Climate average

Ystrad Mynach, Friday, 30 October

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

Average high12°C
Average low7°C
Average rainfall4.4 mm
Chance of rain57%
Warmest on record+16° (2001)
Coldest on record-1° (1983)
Sat, 31+7 ° /12 °5.5Climate average
+12 °Climate average

Ystrad Mynach, Saturday, 31 October

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

Average high12°C
Average low7°C
Average rainfall5.5 mm
Chance of rain58%
Warmest on record+18° (2014)
Coldest on record-2° (1992)
Sun, 01+7 ° /11 °4Climate average
+11 °Climate average

Ystrad Mynach, Sunday, 1 November

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

Average high11°C
Average low7°C
Average rainfall4 mm
Chance of rain50%
Warmest on record+16° (2014)
Coldest on record-1° (1988)
Mon, 02+6 ° /11 °5.2Climate average
+11 °Climate average

Ystrad Mynach, Monday, 2 November

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

Average high11°C
Average low6°C
Average rainfall5.2 mm
Chance of rain57%
Warmest on record+16° (2005)
Coldest on record-1° (2006)
Tue, 03+6 ° /11 °3.2Climate average
+11 °Climate average

Ystrad Mynach, Tuesday, 3 November

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

Average high11°C
Average low6°C
Average rainfall3.2 mm
Chance of rain48%
Warmest on record+14° (2011)
Coldest on record-2° (2006)
Wed, 04+5 ° /10 °2.7Climate average
+10 °Climate average

Ystrad Mynach, Wednesday, 4 November

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

Average high10°C
Average low5°C
Average rainfall2.7 mm
Chance of rain40%
Warmest on record+14° (1973)
Coldest on record-3° (2006)
Thu, 05+6 ° /10 °3.1Climate average
+10 °Climate average

Ystrad Mynach, Thursday, 5 November

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

Average high10°C
Average low6°C
Average rainfall3.1 mm
Chance of rain40%
Warmest on record+14° (1978)
Coldest on record-1° (1988)
Fri, 06+5 ° /10 °2.4Climate average
+10 °Climate average

Ystrad Mynach, Friday, 6 November

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

Average high10°C
Average low5°C
Average rainfall2.4 mm
Chance of rain42%
Warmest on record+15° (2015)
Coldest on record0° (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 Ystrad Mynach 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 Ystrad Mynach 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.