As of 18:54 BST

Weather in Sellafield

+10°

Sellafield, Wednesday, 7 October, 18:54

Partly cloudy. Feels like 10°C. High 12°C, low 10°C.

Pressure1015 mb

Wind18 mph NW

Humidity80%

Visibility6.2 mi

Dew point7°C

Detailed hourly forecast

The month ahead in Sellafield: daytime temperatures averaging +13.1° and +10.5° overnight — that is 0.6° above the climate average for October. Rain is expected on 12 days (around 118 mm), against a normal of 9 days and 80 mm. The warmest day should be 13 October (+15.7°), the coolest 18 October (+8.5°).

+13.1°/+10.5°

Average day / night

+0.6°

Above average

12 / 9

Wet days / normal

118 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+13.9°	+12.8°	+1.1°
17 October – 26 October	+11.8°	+11.8°	+0°
27 October – 5 November	near average	+10.8°	—

October records over 66 years

+20°10 October 2018All-time high

-2.7°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Cleator Moor (10.7 km away).

Thu, 08+9 ° /15 °

8.8

+15 °

Sellafield, Thursday, 8 October

Rain. High 15°C, low 9°C.

Pressure1022 mb

Wind9 mph NW

Humidity70%

Visibility6.2 mi

Dew point6°C

Fri, 09+12 ° /15 °

17.5

+15 °

Sellafield, Friday, 9 October

Rain. High 15°C, low 12°C.

Pressure1006 mb

Wind23 mph W

Humidity74%

Visibility6.2 mi

Dew point9°C

Sat, 10+10 ° /12 °

20.3

+12 °

Sellafield, Saturday, 10 October

Rain. High 12°C, low 10°C.

Pressure1006 mb

Wind27 mph W

Humidity77%

Visibility6.2 mi

Dew point8°C

Sun, 11+11 ° /13 °

0.9

+13 °

Sellafield, Sunday, 11 October

Light rain. High 13°C, low 11°C.

Pressure1012 mb

Wind10 mph NW

Humidity71%

Visibility6.2 mi

Dew point7°C

Mon, 12+11 ° /16 °

4.6

+16 °

Sellafield, Monday, 12 October

Light rain. High 16°C, low 11°C.

Pressure1008 mb

Wind24 mph S

Humidity89%

Visibility—

Dew point12°C

Tue, 13+13 ° /16 °

9.4

+16 °

Sellafield, Tuesday, 13 October

Rain. High 16°C, low 13°C.

Pressure1019 mb

Wind25 mph S

Humidity73%

Visibility—

Dew point10°C

Wed, 14+13 ° /15 °

0.5

+15 °

Sellafield, Wednesday, 14 October

Light rain. High 15°C, low 13°C.

Pressure1027 mb

Wind20 mph S

Humidity88%

Visibility—

Dew point12°C

Thu, 15+11 ° /14 °

6.2

+14 °

Sellafield, Thursday, 15 October

Rain. High 14°C, low 11°C.

Pressure1015 mb

Wind26 mph S

Humidity93%

Visibility—

Dew point10°C

Fri, 16+11 ° /12 °

0.2

+12 °

Sellafield, Friday, 16 October

Light rain. High 12°C, low 11°C.

Pressure1024 mb

Wind16 mph S

Humidity68%

Visibility—

Dew point6°C

Sat, 17+10 ° /12 °

4.4

+12 °

Sellafield, Saturday, 17 October

Light rain. High 12°C, low 10°C.

Pressure1009 mb

Wind23 mph S

Humidity84%

Visibility—

Dew point7°C

Sun, 18+8 ° /13 °

0.6

+13 °

Sellafield, Sunday, 18 October

Light rain. High 13°C, low 8°C.

Pressure1011 mb

Wind37 mph SE

Humidity73%

Visibility—

Dew point5°C

Mon, 19+11 ° /14 °

16.4

+14 °

Sellafield, Monday, 19 October

Rain. High 14°C, low 11°C.

Pressure992 mb

Wind35 mph SE

Humidity70%

Visibility—

Dew point6°C

Tue, 20+10 ° /11 °

+11 °

Sellafield, Tuesday, 20 October

Light rain. High 11°C, low 10°C.

Pressure993 mb

Wind26 mph SW

Humidity65%

Visibility—

Dew point5°C

Wed, 21+9 ° /10 °

9.9

+10 °

Sellafield, Wednesday, 21 October

Light rain. High 10°C, low 9°C.

Pressure1003 mb

Wind18 mph W

Humidity75%

Visibility—

Dew point6°C

Thu, 22+9 ° /11 °

5.9

+11 °

Sellafield, Thursday, 22 October

Light rain. High 11°C, low 9°C.

Pressure1005 mb

Wind30 mph SE

Humidity84%

Visibility—

Dew point7°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+9 ° /12 °

5.7

+12 °

Sellafield, Friday, 23 October

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

Average high12°C

Average low9°C

Average rainfall5.7 mm

Chance of rain70%

Warmest on record+16° (2011)

Coldest on record+4° (1964)

Sat, 24+9 ° /12 °

6.3

+12 °

Sellafield, Saturday, 24 October

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

Average high12°C

Average low9°C

Average rainfall6.3 mm

Chance of rain65%

Warmest on record+16° (1995)

Coldest on record+3° (1964)

Sun, 25+9 ° /12 °

6.6

+12 °

Sellafield, Sunday, 25 October

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

Average high12°C

Average low9°C

Average rainfall6.6 mm

Chance of rain60%

Warmest on record+17° (2024)

Coldest on record+3° (1993)

Mon, 26+9 ° /11 °

+11 °

Sellafield, Monday, 26 October

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

Average high11°C

Average low9°C

Average rainfall5 mm

Chance of rain65%

Warmest on record+16° (2005)

Coldest on record+2° (1962)

Tue, 27+9 ° /12 °

6.8

+12 °

Sellafield, Tuesday, 27 October

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

Average high12°C

Average low9°C

Average rainfall6.8 mm

Chance of rain73%

Warmest on record+17° (2005)

Coldest on record+1° (1962)

Wed, 28+8 ° /11 °

+11 °

Sellafield, Wednesday, 28 October

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

Average high11°C

Average low8°C

Average rainfall7 mm

Chance of rain63%

Warmest on record+16° (2005)

Coldest on record+2° (2019)

Thu, 29+8 ° /11 °

5.4

+11 °

Sellafield, Thursday, 29 October

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

Average high11°C

Average low8°C

Average rainfall5.4 mm

Chance of rain53%

Warmest on record+16° (2005)

Coldest on record-1° (2018)

Fri, 30+8 ° /11 °

5.9

+11 °

Sellafield, Friday, 30 October

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

Average high11°C

Average low8°C

Average rainfall5.9 mm

Chance of rain68%

Warmest on record+16° (2005)

Coldest on record-3° (2018)

Sat, 31+8 ° /11 °

6.3

+11 °

Sellafield, Saturday, 31 October

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

Average high11°C

Average low8°C

Average rainfall6.3 mm

Chance of rain65%

Warmest on record+17° (2014)

Coldest on record+2° (1992)

Sun, 01+8 ° /11 °

7.4

+11 °

Sellafield, Sunday, 1 November

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

Average high11°C

Average low8°C

Average rainfall7.4 mm

Chance of rain77%

Warmest on record+14° (2014)

Coldest on record+2° (1966)

Mon, 02+7 ° /11 °

6.6

+11 °

Sellafield, Monday, 2 November

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

Average high11°C

Average low7°C

Average rainfall6.6 mm

Chance of rain60%

Warmest on record+15° (2005)

Coldest on record+1° (1986)

Tue, 03+7 ° /10 °

7.4

+10 °

Sellafield, Tuesday, 3 November

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

Average high10°C

Average low7°C

Average rainfall7.4 mm

Chance of rain73%

Warmest on record+15° (2011)

Coldest on record+2° (1985)

Wed, 04+7 ° /10 °

4.8

+10 °

Sellafield, Wednesday, 4 November

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

Average high10°C

Average low7°C

Average rainfall4.8 mm

Chance of rain58%

Warmest on record+14° (2010)

Coldest on record0° (1968)

Thu, 05+7 ° /10 °

4.9

+10 °

Sellafield, Thursday, 5 November

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

Average high10°C

Average low7°C

Average rainfall4.9 mm

Chance of rain58%

Warmest on record+14° (2025)

Coldest on record+2° (1984)

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 Sellafield 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 Sellafield 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.