As of 15:53 BST

Weather in Trewedna Water

+15°

Trewedna Water, Thursday, 8 October, 15:53

Overcast. Feels like 14°C. High 15°C, low 9°C.

Pressure1026 mb

Wind14 mph W

Humidity58%

Visibility5.4 mi

Dew point7°C

Detailed hourly forecast

The month ahead in Trewedna Water: daytime temperatures averaging +15.7° and +11.4° overnight — that is 1.1° above the climate average for October. Rain is expected on 9 days (around 40 mm), against a normal of 7 days and 43 mm. The warmest day should be 12 October (+18.6°), the coolest 20 October (+8.5°).

+15.7°/+11.4°

Average day / night

+1.1°

Above average

9 / 7

Wet days / normal

40 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+16.1°	+15°	+1.1°
18 October – 27 October	+15.2°	+14°	+1.2°
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 ° /17 °

2.9

+17 °

Trewedna Water, Friday, 9 October

Light rain. High 17°C, low 13°C.

Pressure1016 mb

Wind19 mph W

Humidity90%

Visibility2.7 mi

Dew point15°C

Sat, 10+12 ° /15 °

+15 °

Trewedna Water, Saturday, 10 October

Partly cloudy. High 15°C, low 12°C.

Pressure1019 mb

Wind13 mph NW

Humidity66%

Visibility6.2 mi

Dew point8°C

Sun, 11+11 ° /15 °

1.9

+15 °

Trewedna Water, Sunday, 11 October

Light rain. High 15°C, low 11°C.

Pressure1014 mb

Wind6 mph S

Humidity79%

Visibility5.4 mi

Dew point11°C

Mon, 12+15 ° /19 °

3.7

+19 °

Trewedna Water, Monday, 12 October

Light rain. High 19°C, low 15°C.

Pressure1012 mb

Wind9 mph SW

Humidity89%

Visibility6.2 mi

Dew point16°C

Tue, 13+12 ° /18 °

+18 °

Trewedna Water, Tuesday, 13 October

Light rain. High 18°C, low 12°C.

Pressure1023 mb

Wind14 mph SW

Humidity84%

Visibility—

Dew point15°C

Wed, 14+11 ° /16 °

+16 °

Trewedna Water, Wednesday, 14 October

Light rain. High 16°C, low 11°C.

Pressure1022 mb

Wind22 mph SW

Humidity73%

Visibility—

Dew point11°C

Thu, 15+10 ° /14 °

1.8

+14 °

Trewedna Water, Thursday, 15 October

Light rain. High 14°C, low 10°C.

Pressure1024 mb

Wind17 mph W

Humidity66%

Visibility—

Dew point7°C

Fri, 16+10 ° /16 °

+16 °

Trewedna Water, Friday, 16 October

Rain. High 16°C, low 10°C.

Pressure1021 mb

Wind18 mph S

Humidity95%

Visibility—

Dew point12°C

Sat, 17+14 ° /16 °

1.4

+16 °

Trewedna Water, Saturday, 17 October

Light rain. High 16°C, low 14°C.

Pressure1019 mb

Wind12 mph SE

Humidity89%

Visibility—

Dew point14°C

Sun, 18+13 ° /16 °

3.7

+16 °

Trewedna Water, Sunday, 18 October

Light rain. High 16°C, low 13°C.

Pressure1020 mb

Wind23 mph N

Humidity95%

Visibility—

Dew point15°C

Mon, 19+12 ° /14 °

+14 °

Trewedna Water, Monday, 19 October

Overcast. High 14°C, low 12°C.

Pressure1027 mb

Wind24 mph N

Humidity80%

Visibility—

Dew point11°C

Tue, 20+8 ° /15 °

+15 °

Trewedna Water, Tuesday, 20 October

Clear sky. High 15°C, low 8°C.

Pressure1031 mb

Wind13 mph NE

Humidity61%

Visibility—

Dew point6°C

Wed, 21+9 ° /14 °

+14 °

Trewedna Water, Wednesday, 21 October

Mainly clear. High 14°C, low 9°C.

Pressure1030 mb

Wind15 mph E

Humidity72%

Visibility—

Dew point8°C

Thu, 22+12 ° /16 °

+16 °

Trewedna Water, Thursday, 22 October

Clear sky. High 16°C, low 12°C.

Pressure1024 mb

Wind15 mph SE

Humidity73%

Visibility—

Dew point10°C

Fri, 23+11 ° /16 °

+16 °

Trewedna Water, Friday, 23 October

Clear sky. High 16°C, low 11°C.

Pressure1018 mb

Wind9 mph SE

Humidity66%

Visibility—

Dew point9°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.