As of 23:56 BST

Weather in St Mary's Isle

+16°Weather now

St Mary's Isle, Saturday, 8 August, 23:56

Overcast. Feels like 15°C. High 22°C, low 13°C.

Pressure1014 mb
Wind9 mph SW
Humidity82%
Visibility6.2 mi
Dew point12°C
Sun, 09+13 ° /18 °10.2Rain
+18 °Rain

St Mary's Isle, Sunday, 9 August

Rain. High 18°C, low 13°C.

Pressure1012 mb
Wind12 mph SW
Humidity89%
Visibility6.2 mi
Dew point13°C
Mon, 10+12 ° /18 °0Partly cloudy
+18 °Partly cloudy

St Mary's Isle, Monday, 10 August

Partly cloudy. High 18°C, low 12°C.

Pressure1021 mb
Wind8 mph W
Humidity66%
Visibility6.2 mi
Dew point10°C
Tue, 11+13 ° /18 °0Overcast
+18 °Overcast

St Mary's Isle, Tuesday, 11 August

Overcast. High 18°C, low 13°C.

Pressure1024 mb
Wind7 mph SE
Humidity74%
Visibility6.2 mi
Dew point11°C
Wed, 12+17 ° /18 °0Overcast
+18 °Overcast

St Mary's Isle, Wednesday, 12 August

Overcast. High 18°C, low 17°C.

Pressure1022 mb
Wind14 mph S
Humidity76%
Visibility6.2 mi
Dew point13°C
Thu, 13+16 ° /21 °0Overcast
+21 °Overcast

St Mary's Isle, Thursday, 13 August

Overcast. High 21°C, low 16°C.

Pressure1019 mb
Wind7 mph NE
Humidity73%
Visibility—
Dew point13°C
Fri, 14+17 ° /20 °0.8Light rain
+20 °Light rain

St Mary's Isle, Friday, 14 August

Light rain. High 20°C, low 17°C.

Pressure1016 mb
Wind10 mph NW
Humidity81%
Visibility—
Dew point16°C
Sat, 15+15 ° /17 °0.7Light rain
+17 °Light rain

St Mary's Isle, Saturday, 15 August

Light rain. High 17°C, low 15°C.

Pressure1018 mb
Wind8 mph E
Humidity85%
Visibility—
Dew point14°C
Sun, 16+15 ° /17 °0.3Light rain
+17 °Light rain

St Mary's Isle, Sunday, 16 August

Light rain. High 17°C, low 15°C.

Pressure1019 mb
Wind12 mph SW
Humidity84%
Visibility—
Dew point13°C
Mon, 17+14 ° /16 °9.2Rain
+16 °Rain

St Mary's Isle, Monday, 17 August

Rain. High 16°C, low 14°C.

Pressure1008 mb
Wind20 mph W
Humidity96%
Visibility—
Dew point15°C
Tue, 18+14 ° /17 °0.8Light rain
+17 °Light rain

St Mary's Isle, Tuesday, 18 August

Light rain. High 17°C, low 14°C.

Pressure1011 mb
Wind18 mph W
Humidity64%
Visibility—
Dew point9°C
Wed, 19+14 ° /16 °2.1Light rain
+16 °Light rain

St Mary's Isle, Wednesday, 19 August

Light rain. High 16°C, low 14°C.

Pressure1011 mb
Wind20 mph W
Humidity75%
Visibility—
Dew point11°C
Thu, 20+13 ° /17 °0.5Light rain
+17 °Light rain

St Mary's Isle, Thursday, 20 August

Light rain. High 17°C, low 13°C.

Pressure1012 mb
Wind19 mph NW
Humidity68%
Visibility—
Dew point11°C
Fri, 21+12 ° /16 °0.1Light rain
+16 °Light rain

St Mary's Isle, Friday, 21 August

Light rain. High 16°C, low 12°C.

Pressure1016 mb
Wind11 mph NE
Humidity74%
Visibility—
Dew point9°C
Sat, 22+12 ° /16 °0Clear sky
+16 °Clear sky

St Mary's Isle, Saturday, 22 August

Clear sky. High 16°C, low 12°C.

Pressure1023 mb
Wind12 mph NE
Humidity69%
Visibility—
Dew point10°C
Sun, 23+14 ° /16 °0.6Light rain
+16 °Light rain

St Mary's Isle, Sunday, 23 August

Light rain. High 16°C, low 14°C.

Pressure1018 mb
Wind21 mph S
Humidity81%
Visibility—
Dew point12°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 St Mary's Isle 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 St Mary's Isle 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.