As of 16:09 BST

Weather in Port St Mary

+23°

Port St Mary, Saturday, 8 August, 16:09

Overcast. Feels like 23°C. High 23°C, low 12°C.

Pressure1016 mb

Wind16 mph S

Humidity69%

Visibility6.2 mi

Dew point17°C

Detailed hourly forecast

Sun, 09+14 ° /19 °

1.3

+19 °

Port St Mary, Sunday, 9 August

Light rain. High 19°C, low 14°C.

Pressure1014 mb

Wind13 mph SW

Humidity84%

Visibility6.2 mi

Dew point12°C

Mon, 10+12 ° /15 °

+15 °

Port St Mary, Monday, 10 August

Overcast. High 15°C, low 12°C.

Pressure1022 mb

Wind11 mph NW

Humidity78%

Visibility6.2 mi

Dew point10°C

Tue, 11+14 ° /17 °

+17 °

Port St Mary, Tuesday, 11 August

Partly cloudy. High 17°C, low 14°C.

Pressure1024 mb

Wind14 mph SE

Humidity81%

Visibility6.2 mi

Dew point12°C

Wed, 12+16 ° /18 °

+18 °

Port St Mary, Wednesday, 12 August

Overcast. High 18°C, low 16°C.

Pressure1022 mb

Wind9 mph SE

Humidity81%

Visibility6.2 mi

Dew point13°C

Thu, 13+15 ° /18 °

+18 °

Port St Mary, Thursday, 13 August

Mainly clear. High 18°C, low 15°C.

Pressure1019 mb

Wind10 mph S

Humidity94%

Visibility—

Dew point15°C

Fri, 14+15 ° /16 °

3.7

+16 °

Port St Mary, Friday, 14 August

Light rain. High 16°C, low 15°C.

Pressure1017 mb

Wind17 mph NW

Humidity96%

Visibility—

Dew point15°C

Sat, 15+13 ° /14 °

+14 °

Port St Mary, Saturday, 15 August

Mainly clear. High 14°C, low 13°C.

Pressure1019 mb

Wind20 mph NW

Humidity79%

Visibility—

Dew point10°C

Sun, 16+14 ° /15 °

0.2

+15 °

Port St Mary, Sunday, 16 August

Light rain. High 15°C, low 14°C.

Pressure1014 mb

Wind5 mph N

Humidity72%

Visibility—

Dew point10°C

Mon, 17+14 ° /15 °

1.7

+15 °

Port St Mary, Monday, 17 August

Light rain. High 15°C, low 14°C.

Pressure1014 mb

Wind18 mph NW

Humidity79%

Visibility—

Dew point11°C

Tue, 18+14 ° /15 °

0.6

+15 °

Port St Mary, Tuesday, 18 August

Light rain. High 15°C, low 14°C.

Pressure1012 mb

Wind21 mph N

Humidity85%

Visibility—

Dew point12°C

Wed, 19+14 ° /15 °

0.2

+15 °

Port St Mary, Wednesday, 19 August

Light rain. High 15°C, low 14°C.

Pressure1014 mb

Wind21 mph NW

Humidity81%

Visibility—

Dew point10°C

Thu, 20+14 ° /16 °

3.5

+16 °

Port St Mary, Thursday, 20 August

Light rain. High 16°C, low 14°C.

Pressure1006 mb

Wind24 mph W

Humidity80%

Visibility—

Dew point12°C

Fri, 21+13 ° /15 °

4.5

+15 °

Port St Mary, Friday, 21 August

Light rain. High 15°C, low 13°C.

Pressure1014 mb

Wind28 mph W

Humidity69%

Visibility—

Dew point8°C

Sat, 22+13 ° /15 °

3.2

+15 °

Port St Mary, Saturday, 22 August

Light rain. High 15°C, low 13°C.

Pressure1012 mb

Wind30 mph W

Humidity71%

Visibility—

Dew point9°C

Sun, 23+13 ° /15 °

0.9

+15 °

Port St Mary, Sunday, 23 August

Light rain. High 15°C, low 13°C.

Pressure1023 mb

Wind28 mph NW

Humidity75%

Visibility—

Dew point9°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 Port St Mary 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 Port St Mary 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.