As of 21:37 BST

Weather in Old Coulsdon

+19°

Old Coulsdon, Saturday, 8 August, 21:37

Overcast. Feels like 18°C. High 27°C, low 10°C.

Pressure1016 mb

Wind3 mph S

Humidity49%

Visibility6.2 mi

Dew point8°C

Detailed hourly forecast

Sun, 09+14 ° /31 °

+31 °

Old Coulsdon, Sunday, 9 August

Overcast. High 31°C, low 14°C.

Pressure1013 mb

Wind3 mph N

Humidity20%

Visibility6.2 mi

Dew point4°C

Mon, 10+13 ° /26 °

+26 °

Old Coulsdon, Monday, 10 August

Overcast. High 26°C, low 13°C.

Pressure1020 mb

Wind9 mph NW

Humidity38%

Visibility6.2 mi

Dew point8°C

Tue, 11+14 ° /26 °

+26 °

Old Coulsdon, Tuesday, 11 August

Mainly clear. High 26°C, low 14°C.

Pressure1024 mb

Wind11 mph E

Humidity31%

Visibility6.2 mi

Dew point7°C

Wed, 12+16 ° /33 °

+33 °

Old Coulsdon, Wednesday, 12 August

Partly cloudy. High 33°C, low 16°C.

Pressure1022 mb

Wind8 mph SE

Humidity17%

Visibility6.2 mi

Dew point2°C

Thu, 13+19 ° /37 °

+37 °

Old Coulsdon, Thursday, 13 August

Clear sky. High 37°C, low 19°C.

Pressure1018 mb

Wind10 mph S

Humidity13%

Visibility—

Dew point2°C

Fri, 14+19 ° /34 °

+34 °

Old Coulsdon, Friday, 14 August

Overcast. High 34°C, low 19°C.

Pressure1016 mb

Wind13 mph W

Humidity30%

Visibility—

Dew point10°C

Sat, 15+19 ° /30 °

+30 °

Old Coulsdon, Saturday, 15 August

Overcast. High 30°C, low 19°C.

Pressure1013 mb

Wind19 mph NE

Humidity32%

Visibility—

Dew point9°C

Sun, 16+17 ° /23 °

0.3

+23 °

Old Coulsdon, Sunday, 16 August

Light rain. High 23°C, low 17°C.

Pressure1017 mb

Wind10 mph NE

Humidity51%

Visibility—

Dew point12°C

Mon, 17+15 ° /19 °

1.4

+19 °

Old Coulsdon, Monday, 17 August

Light rain. High 19°C, low 15°C.

Pressure1015 mb

Wind12 mph SW

Humidity62%

Visibility—

Dew point11°C

Tue, 18+15 ° /26 °

0.1

+26 °

Old Coulsdon, Tuesday, 18 August

Light rain. High 26°C, low 15°C.

Pressure1012 mb

Wind14 mph NW

Humidity37%

Visibility—

Dew point7°C

Wed, 19+12 ° /24 °

+24 °

Old Coulsdon, Wednesday, 19 August

Mainly clear. High 24°C, low 12°C.

Pressure1014 mb

Wind11 mph W

Humidity34%

Visibility—

Dew point4°C

Thu, 20+13 ° /25 °

+25 °

Old Coulsdon, Thursday, 20 August

Overcast. High 25°C, low 13°C.

Pressure1012 mb

Wind11 mph S

Humidity34%

Visibility—

Dew point5°C

Fri, 21+15 ° /23 °

0.2

+23 °

Old Coulsdon, Friday, 21 August

Light rain. High 23°C, low 15°C.

Pressure1012 mb

Wind10 mph NE

Humidity37%

Visibility—

Dew point7°C

Sat, 22+14 ° /22 °

0.2

+22 °

Old Coulsdon, Saturday, 22 August

Light rain. High 22°C, low 14°C.

Pressure1018 mb

Wind12 mph NE

Humidity39%

Visibility—

Dew point7°C

Sun, 23+12 ° /24 °

+24 °

Old Coulsdon, Sunday, 23 August

Clear sky. High 24°C, low 12°C.

Pressure1020 mb

Wind9 mph N

Humidity35%

Visibility—

Dew point5°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 Old Coulsdon 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 Old Coulsdon 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.