As of 20:17 BST

Weather in Sizewell

+20°Weather now

Sizewell, Saturday, 8 August, 20:17

Overcast. Feels like 20°C. High 27°C, low 12°C.

Pressure1017 mb
Wind8 mph SE
Humidity59%
Visibility6.2 mi
Dew point13°C
Sun, 09+15 ° /30 °0Overcast
+30 °Overcast

Sizewell, Sunday, 9 August

Overcast. High 30°C, low 15°C.

Pressure1013 mb
Wind6 mph S
Humidity42%
Visibility6.2 mi
Dew point10°C
Mon, 10+15 ° /24 °0Overcast
+24 °Overcast

Sizewell, Monday, 10 August

Overcast. High 24°C, low 15°C.

Pressure1019 mb
Wind9 mph N
Humidity45%
Visibility6.2 mi
Dew point10°C
Tue, 11+15 ° /20 °0Clear sky
+20 °Clear sky

Sizewell, Tuesday, 11 August

Clear sky. High 20°C, low 15°C.

Pressure1027 mb
Wind13 mph E
Humidity54%
Visibility6.2 mi
Dew point10°C
Wed, 12+17 ° /23 °0Overcast
+23 °Overcast

Sizewell, Wednesday, 12 August

Overcast. High 23°C, low 17°C.

Pressure1025 mb
Wind13 mph SE
Humidity50%
Visibility6.2 mi
Dew point11°C
Thu, 13+19 ° /27 °0Clear sky
+27 °Clear sky

Sizewell, Thursday, 13 August

Clear sky. High 27°C, low 19°C.

Pressure1021 mb
Wind11 mph SE
Humidity39%
Visibility—
Dew point11°C
Fri, 14+19 ° /32 °0Mainly clear
+32 °Mainly clear

Sizewell, Friday, 14 August

Mainly clear. High 32°C, low 19°C.

Pressure1014 mb
Wind12 mph NE
Humidity28%
Visibility—
Dew point10°C
Sat, 15+17 ° /22 °0Overcast
+22 °Overcast

Sizewell, Saturday, 15 August

Overcast. High 22°C, low 17°C.

Pressure1017 mb
Wind13 mph NE
Humidity67%
Visibility—
Dew point14°C
Sun, 16+17 ° /22 °1.2Light rain
+22 °Light rain

Sizewell, Sunday, 16 August

Light rain. High 22°C, low 17°C.

Pressure1014 mb
Wind13 mph E
Humidity65%
Visibility—
Dew point14°C
Mon, 17+16 ° /21 °13.4Rain
+21 °Rain

Sizewell, Monday, 17 August

Rain. High 21°C, low 16°C.

Pressure1009 mb
Wind9 mph N
Humidity70%
Visibility—
Dew point15°C
Tue, 18+13 ° /20 °1.8Light rain
+20 °Light rain

Sizewell, Tuesday, 18 August

Light rain. High 20°C, low 13°C.

Pressure1009 mb
Wind11 mph NW
Humidity52%
Visibility—
Dew point9°C
Wed, 19+14 ° /22 °0Overcast
+22 °Overcast

Sizewell, Wednesday, 19 August

Overcast. High 22°C, low 14°C.

Pressure1010 mb
Wind19 mph NW
Humidity60%
Visibility—
Dew point11°C
Thu, 20+16 ° /19 °2.2Light rain
+19 °Light rain

Sizewell, Thursday, 20 August

Light rain. High 19°C, low 16°C.

Pressure1007 mb
Wind17 mph SW
Humidity79%
Visibility—
Dew point13°C
Fri, 21+13 ° /21 °0Partly cloudy
+21 °Partly cloudy

Sizewell, Friday, 21 August

Partly cloudy. High 21°C, low 13°C.

Pressure1011 mb
Wind15 mph W
Humidity53%
Visibility—
Dew point7°C
Sat, 22+14 ° /20 °1.4Light rain
+20 °Light rain

Sizewell, Saturday, 22 August

Light rain. High 20°C, low 14°C.

Pressure1011 mb
Wind21 mph W
Humidity58%
Visibility—
Dew point10°C
Sun, 23+12 ° /19 °0.2Light rain
+19 °Light rain

Sizewell, Sunday, 23 August

Light rain. High 19°C, low 12°C.

Pressure1018 mb
Wind14 mph W
Humidity46%
Visibility—
Dew point6°C

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 Sizewell 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 Sizewell 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.