As of 08:13 BST

Weather in Trewedna Water

+12°

Trewedna Water, Thursday, 8 October, 08:13

Overcast. Feels like 11°C. High 14°C, low 10°C.

Pressure1025 mb

Wind14 mph N

Humidity72%

Visibility6.2 mi

Dew point7°C

Detailed hourly forecast

The month ahead in Trewedna Water: daytime temperatures averaging +15.6° and +11.6° overnight — that is 1° above the climate average for October. Rain is expected on 5 days (around 46 mm), against a normal of 7 days and 43 mm. The warmest day should be 13 October (+18.7°), the coolest 17 October (+7.1°).

+15.6°/+11.6°

Average day / night

+1°

Above average

5 / 7

Wet days / normal

46 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+15.5°	+15°	+0.6°
18 October – 27 October	+15.8°	+14°	+1.8°
28 October – 6 November	near average	+12.9°	—

October records over 66 years

+22.9°9 October 2023All-time high

-0.1°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Penryn (5.5 km away).

Fri, 09+13 ° /18 °

+18 °

Trewedna Water, Friday, 9 October

Rain. High 18°C, low 13°C.

Pressure1017 mb

Wind19 mph W

Humidity84%

Visibility6.2 mi

Dew point15°C

Sat, 10+12 ° /15 °

+15 °

Trewedna Water, Saturday, 10 October

Overcast. High 15°C, low 12°C.

Pressure1019 mb

Wind14 mph NW

Humidity63%

Visibility6.2 mi

Dew point7°C

Sun, 11+10 ° /15 °

+15 °

Trewedna Water, Sunday, 11 October

Overcast. High 15°C, low 10°C.

Pressure1016 mb

Wind7 mph SW

Humidity67%

Visibility6.2 mi

Dew point9°C

Mon, 12+15 ° /18 °

6.6

+18 °

Trewedna Water, Monday, 12 October

Light rain. High 18°C, low 15°C.

Pressure1014 mb

Wind17 mph S

Humidity96%

Visibility—

Dew point17°C

Tue, 13+14 ° /19 °

0.8

+19 °

Trewedna Water, Tuesday, 13 October

Light rain. High 19°C, low 14°C.

Pressure1023 mb

Wind13 mph SW

Humidity91%

Visibility—

Dew point17°C

Wed, 14+9 ° /16 °

+16 °

Trewedna Water, Wednesday, 14 October

Mainly clear. High 16°C, low 9°C.

Pressure1023 mb

Wind11 mph SW

Humidity63%

Visibility—

Dew point8°C

Thu, 15+11 ° /14 °

7.4

+14 °

Trewedna Water, Thursday, 15 October

Rain. High 14°C, low 11°C.

Pressure1017 mb

Wind29 mph NW

Humidity71%

Visibility—

Dew point6°C

Fri, 16+8 ° /13 °

0.2

+13 °

Trewedna Water, Friday, 16 October

Light rain. High 13°C, low 8°C.

Pressure1024 mb

Wind21 mph N

Humidity50%

Visibility—

Dew point3°C

Sat, 17+7 ° /13 °

0.9

+13 °

Trewedna Water, Saturday, 17 October

Light rain. High 13°C, low 7°C.

Pressure1020 mb

Wind9 mph N

Humidity63%

Visibility—

Dew point6°C

Sun, 18+8 ° /14 °

24.4

+14 °

Trewedna Water, Sunday, 18 October

Rain. High 14°C, low 8°C.

Pressure1016 mb

Wind17 mph SW

Humidity95%

Visibility—

Dew point13°C

Mon, 19+14 ° /16 °

0.5

+16 °

Trewedna Water, Monday, 19 October

Light rain. High 16°C, low 14°C.

Pressure1017 mb

Wind10 mph S

Humidity94%

Visibility—

Dew point14°C

Tue, 20+13 ° /16 °

+16 °

Trewedna Water, Tuesday, 20 October

Partly cloudy. High 16°C, low 13°C.

Pressure1016 mb

Wind22 mph SE

Humidity80%

Visibility—

Dew point12°C

Wed, 21+14 ° /16 °

1.4

+16 °

Trewedna Water, Wednesday, 21 October

Light rain. High 16°C, low 14°C.

Pressure1013 mb

Wind22 mph SE

Humidity81%

Visibility—

Dew point13°C

Thu, 22+14 ° /16 °

+16 °

Trewedna Water, Thursday, 22 October

Overcast. High 16°C, low 14°C.

Pressure1008 mb

Wind21 mph E

Humidity85%

Visibility—

Dew point13°C

Fri, 23+14 ° /16 °

0.1

+16 °

Trewedna Water, Friday, 23 October

Light rain. High 16°C, low 14°C.

Pressure1013 mb

Wind22 mph E

Humidity77%

Visibility—

Dew point12°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+10 ° /14 °

3.5

+14 °

Trewedna Water, Saturday, 24 October

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

Average high14°C

Average low10°C

Average rainfall3.5 mm

Chance of rain48%

Warmest on record+17° (2005)

Coldest on record+3° (1987)

Sun, 25+10 ° /14 °

2.2

+14 °

Trewedna Water, Sunday, 25 October

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

Average high14°C

Average low10°C

Average rainfall2.2 mm

Chance of rain37%

Warmest on record+17° (2006)

Coldest on record+3° (1987)

Mon, 26+10 ° /14 °

2.1

+14 °

Trewedna Water, Monday, 26 October

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

Average high14°C

Average low10°C

Average rainfall2.1 mm

Chance of rain42%

Warmest on record+18° (2005)

Coldest on record+6° (1976)

Tue, 27+10 ° /14 °

2.8

+14 °

Trewedna Water, Tuesday, 27 October

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

Average high14°C

Average low10°C

Average rainfall2.8 mm

Chance of rain42%

Warmest on record+19° (2005)

Coldest on record+3° (1962)

Wed, 28+10 ° /14 °

2.5

+14 °

Trewedna Water, Wednesday, 28 October

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

Average high14°C

Average low10°C

Average rainfall2.5 mm

Chance of rain45%

Warmest on record+18° (2014)

Coldest on record+5° (2003)

Thu, 29+10 ° /13 °

2.7

+13 °

Trewedna Water, Thursday, 29 October

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

Average high13°C

Average low10°C

Average rainfall2.7 mm

Chance of rain43%

Warmest on record+18° (2006)

Coldest on record+2° (2018)

Fri, 30+10 ° /14 °

3.8

+14 °

Trewedna Water, Friday, 30 October

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

Average high14°C

Average low10°C

Average rainfall3.8 mm

Chance of rain48%

Warmest on record+17° (2014)

Coldest on record0° (2018)

Sat, 31+10 ° /14 °

3.3

+14 °

Trewedna Water, Saturday, 31 October

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

Average high14°C

Average low10°C

Average rainfall3.3 mm

Chance of rain52%

Warmest on record+19° (2014)

Coldest on record+4° (1966)

Sun, 01+9 ° /13 °

2.3

+13 °

Trewedna Water, Sunday, 1 November

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

Average high13°C

Average low9°C

Average rainfall2.3 mm

Chance of rain42%

Warmest on record+17° (2015)

Coldest on record+3° (2008)

Mon, 02+9 ° /13 °

+13 °

Trewedna Water, Monday, 2 November

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

Average high13°C

Average low9°C

Average rainfall3 mm

Chance of rain50%

Warmest on record+17° (2005)

Coldest on record+3° (1988)

Tue, 03+9 ° /13 °

2.1

+13 °

Trewedna Water, Tuesday, 3 November

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

Average high13°C

Average low9°C

Average rainfall2.1 mm

Chance of rain47%

Warmest on record+16° (1969)

Coldest on record+2° (1966)

Wed, 04+8 ° /12 °

2.4

+12 °

Trewedna Water, Wednesday, 4 November

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

Average high12°C

Average low8°C

Average rainfall2.4 mm

Chance of rain38%

Warmest on record+16° (1978)

Coldest on record+1° (1968)

Thu, 05+9 ° /12 °

2.1

+12 °

Trewedna Water, Thursday, 5 November

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

Average high12°C

Average low9°C

Average rainfall2.1 mm

Chance of rain37%

Warmest on record+17° (2025)

Coldest on record+2° (2006)

Fri, 06+9 ° /12 °

+12 °

Trewedna Water, Friday, 6 November

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

Average high12°C

Average low9°C

Average rainfall2 mm

Chance of rain45%

Warmest on record+16° (2015)

Coldest on record+3° (2006)

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 Trewedna Water 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 Trewedna Water 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.