The month ahead in Rhosycaerau: daytime temperatures averaging +13.9° and +10.7° overnight — that is 0.5° above the climate average for October. Rain is expected on 13 days (around 66 mm), against a normal of 8 days and 54 mm. The warmest day should be 12 October (+16.7°), the coolest 18 October (+7.6°).
+13.9°/+10.7°
Average day / night
+0.5°
Above average
13 / 8
Wet days / normal
66 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
+12.8°
+12.8°
-0°
27 October – 5 November
near average
+12°
—
October records over 66 years
+19.5°10 October 2018All-time high
+0.8°30 October 2018All-time low
Climate averages and records are calculated from the nearest reference point — St Davids / Tyddewi (20.6 km away).
Thu, 08+10 ° /15 °1.9
+15 °
Rhosycaerau, Thursday, 8 October
Light rain. High 15°C, low 10°C.
Pressure1026 mb
Wind11 mph NW
Humidity77%
Visibility6.2 mi
Dew point8°C
Fri, 09+13 ° /16 °3.5
+16 °
Rhosycaerau, Friday, 9 October
Rain. High 16°C, low 13°C.
Pressure1012 mb
Wind23 mph NW
Humidity83%
Visibility6.2 mi
Dew point12°C
Sat, 10+13 ° /14 °1.6
+14 °
Rhosycaerau, Saturday, 10 October
Light rain. High 14°C, low 13°C.
Pressure1014 mb
Wind24 mph W
Humidity71%
Visibility6.2 mi
Dew point8°C
Sun, 11+12 ° /13 °0.2
+13 °
Rhosycaerau, Sunday, 11 October
Light rain. High 13°C, low 12°C.
Pressure1015 mb
Wind5 mph NW
Humidity69%
Visibility6.2 mi
Dew point7°C
Mon, 12+14 ° /17 °3.4
+17 °
Rhosycaerau, Monday, 12 October
Light rain. High 17°C, low 14°C.
Pressure1009 mb
Wind23 mph SE
Humidity97%
Visibility—
Dew point16°C
Tue, 13+12 ° /17 °5.7
+17 °
Rhosycaerau, Tuesday, 13 October
Rain. High 17°C, low 12°C.
Pressure1022 mb
Wind25 mph S
Humidity75%
Visibility—
Dew point10°C
Wed, 14+12 ° /15 °0
+15 °
Rhosycaerau, Wednesday, 14 October
Clear sky. High 15°C, low 12°C.
Pressure1029 mb
Wind17 mph S
Humidity78%
Visibility—
Dew point11°C
Thu, 15+11 ° /15 °2.1
+15 °
Rhosycaerau, Thursday, 15 October
Light rain. High 15°C, low 11°C.
Pressure1020 mb
Wind25 mph S
Humidity80%
Visibility—
Dew point9°C
Fri, 16+9 ° /12 °0
+12 °
Rhosycaerau, Friday, 16 October
Overcast. High 12°C, low 9°C.
Pressure1025 mb
Wind11 mph NW
Humidity59%
Visibility—
Dew point4°C
Sat, 17+9 ° /13 °1.5
+13 °
Rhosycaerau, Saturday, 17 October
Light rain. High 13°C, low 9°C.
Pressure1011 mb
Wind17 mph W
Humidity83%
Visibility—
Dew point10°C
Sun, 18+8 ° /15 °1.9
+15 °
Rhosycaerau, Sunday, 18 October
Light rain. High 15°C, low 8°C.
Pressure1011 mb
Wind36 mph S
Humidity66%
Visibility—
Dew point6°C
Mon, 19+10 ° /13 °15.4
+13 °
Rhosycaerau, Monday, 19 October
Light rain. High 13°C, low 10°C.
Pressure997 mb
Wind32 mph S
Humidity71%
Visibility—
Dew point6°C
Tue, 20+9 ° /11 °10
+11 °
Rhosycaerau, Tuesday, 20 October
Light rain. High 11°C, low 9°C.
Pressure996 mb
Wind31 mph W
Humidity60%
Visibility—
Dew point4°C
Wed, 21+8 ° /11 °6.3
+11 °
Rhosycaerau, Wednesday, 21 October
Light rain. High 11°C, low 8°C.
Pressure1007 mb
Wind16 mph W
Humidity71%
Visibility—
Dew point5°C
Thu, 22+9 ° /14 °10.7
+14 °
Rhosycaerau, Thursday, 22 October
Rain. High 14°C, low 9°C.
Pressure1003 mb
Wind25 mph S
Humidity84%
Visibility—
Dew point9°C
Days 17 onward are based on 60-year climate statistics
Fri, 23+10 ° /13 °3.2
+13 °
Rhosycaerau, Friday, 23 October
Climate average for this date — the mean of the last 60 years.
Average high13°C
Average low10°C
Average rainfall3.2 mm
Chance of rain45%
Warmest on record+17° (2011)
Coldest on record+5° (1987)
Sat, 24+10 ° /13 °5.4
+13 °
Rhosycaerau, Saturday, 24 October
Climate average for this date — the mean of the last 60 years.
Average high13°C
Average low10°C
Average rainfall5.4 mm
Chance of rain57%
Warmest on record+17° (1995)
Coldest on record+4° (2002)
Sun, 25+10 ° /13 °4
+13 °
Rhosycaerau, Sunday, 25 October
Climate average for this date — the mean of the last 60 years.
Average high13°C
Average low10°C
Average rainfall4 mm
Chance of rain57%
Warmest on record+16° (2006)
Coldest on record+5° (1981)
Mon, 26+10 ° /13 °3.5
+13 °
Rhosycaerau, Monday, 26 October
Climate average for this date — the mean of the last 60 years.
Average high13°C
Average low10°C
Average rainfall3.5 mm
Chance of rain55%
Warmest on record+16° (2005)
Coldest on record+6° (1962)
Tue, 27+10 ° /13 °4.2
+13 °
Rhosycaerau, Tuesday, 27 October
Climate average for this date — the mean of the last 60 years.
Average high13°C
Average low10°C
Average rainfall4.2 mm
Chance of rain58%
Warmest on record+18° (2005)
Coldest on record+4° (2018)
Wed, 28+10 ° /13 °3.9
+13 °
Rhosycaerau, Wednesday, 28 October
Climate average for this date — the mean of the last 60 years.
Average high13°C
Average low10°C
Average rainfall3.9 mm
Chance of rain62%
Warmest on record+17° (2022)
Coldest on record+4° (2008)
Thu, 29+9 ° /12 °4
+12 °
Rhosycaerau, Thursday, 29 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low9°C
Average rainfall4 mm
Chance of rain53%
Warmest on record+16° (2022)
Coldest on record+2° (2018)
Fri, 30+10 ° /12 °4.4
+12 °
Rhosycaerau, Friday, 30 October
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low10°C
Average rainfall4.4 mm
Chance of rain60%
Warmest on record+16° (2005)
Coldest on record+1° (2018)
Sat, 31+10 ° /13 °5
+13 °
Rhosycaerau, Saturday, 31 October
Climate average for this date — the mean of the last 60 years.
Average high13°C
Average low10°C
Average rainfall5 mm
Chance of rain63%
Warmest on record+17° (2014)
Coldest on record+5° (1966)
Sun, 01+9 ° /12 °4.3
+12 °
Rhosycaerau, Sunday, 1 November
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low9°C
Average rainfall4.3 mm
Chance of rain60%
Warmest on record+15° (2020)
Coldest on record+4° (2008)
Mon, 02+9 ° /12 °4.4
+12 °
Rhosycaerau, Monday, 2 November
Climate average for this date — the mean of the last 60 years.
Average high12°C
Average low9°C
Average rainfall4.4 mm
Chance of rain62%
Warmest on record+16° (2005)
Coldest on record+4° (1986)
Tue, 03+9 ° /11 °3.8
+11 °
Rhosycaerau, Tuesday, 3 November
Climate average for this date — the mean of the last 60 years.
Average high11°C
Average low9°C
Average rainfall3.8 mm
Chance of rain60%
Warmest on record+15° (1979)
Coldest on record+3° (1980)
Wed, 04+9 ° /11 °3
+11 °
Rhosycaerau, Wednesday, 4 November
Climate average for this date — the mean of the last 60 years.
Average high11°C
Average low9°C
Average rainfall3 mm
Chance of rain52%
Warmest on record+15° (2010)
Coldest on record+4° (1968)
Thu, 05+9 ° /11 °3.5
+11 °
Rhosycaerau, Thursday, 5 November
Climate average for this date — the mean of the last 60 years.
Average high11°C
Average low9°C
Average rainfall3.5 mm
Chance of rain55%
Warmest on record+16° (2025)
Coldest on record+4° (1966)
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 Rhosycaerau 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 Rhosycaerau 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.