As of 22:29 BST

Weather in Charlestown

+18°Weather now

Charlestown, Saturday, 8 August, 22:29

Partly cloudy. Feels like 17°C. High 24°C, low 11°C.

Pressure1016 mb
Wind1 mph E
Humidity72%
Visibility6.2 mi
Dew point13°C
Sun, 09+13 ° /25 °0Mainly clear
+25 °Mainly clear

Charlestown, Sunday, 9 August

Mainly clear. High 25°C, low 13°C.

Pressure1015 mb
Wind10 mph NW
Humidity46%
Visibility6.2 mi
Dew point11°C
Mon, 10+14 ° /25 °0Partly cloudy
+25 °Partly cloudy

Charlestown, Monday, 10 August

Partly cloudy. High 25°C, low 14°C.

Pressure1021 mb
Wind8 mph NW
Humidity52%
Visibility6.2 mi
Dew point12°C
Tue, 11+15 ° /22 °0Clear sky
+22 °Clear sky

Charlestown, Tuesday, 11 August

Clear sky. High 22°C, low 15°C.

Pressure1022 mb
Wind17 mph SE
Humidity58%
Visibility6.2 mi
Dew point12°C
Wed, 12+17 ° /25 °0Clear sky
+25 °Clear sky

Charlestown, Wednesday, 12 August

Clear sky. High 25°C, low 17°C.

Pressure1020 mb
Wind11 mph SE
Humidity46%
Visibility6.2 mi
Dew point11°C
Thu, 13+17 ° /26 °0Mainly clear
+26 °Mainly clear

Charlestown, Thursday, 13 August

Mainly clear. High 26°C, low 17°C.

Pressure1018 mb
Wind18 mph NW
Humidity36%
Visibility—
Dew point9°C
Fri, 14+17 ° /23 °0Overcast
+23 °Overcast

Charlestown, Friday, 14 August

Overcast. High 23°C, low 17°C.

Pressure1019 mb
Wind14 mph NW
Humidity67%
Visibility—
Dew point15°C
Sat, 15+15 ° /22 °0.2Light rain
+22 °Light rain

Charlestown, Saturday, 15 August

Light rain. High 22°C, low 15°C.

Pressure1017 mb
Wind16 mph NW
Humidity60%
Visibility—
Dew point14°C
Sun, 16+15 ° /22 °0Mainly clear
+22 °Mainly clear

Charlestown, Sunday, 16 August

Mainly clear. High 22°C, low 15°C.

Pressure1019 mb
Wind16 mph NW
Humidity51%
Visibility—
Dew point11°C
Mon, 17+16 ° /18 °3.3Light rain
+18 °Light rain

Charlestown, Monday, 17 August

Light rain. High 18°C, low 16°C.

Pressure1015 mb
Wind18 mph W
Humidity94%
Visibility—
Dew point16°C
Tue, 18+15 ° /20 °0Clear sky
+20 °Clear sky

Charlestown, Tuesday, 18 August

Clear sky. High 20°C, low 15°C.

Pressure1016 mb
Wind17 mph NW
Humidity61%
Visibility—
Dew point12°C
Wed, 19+13 ° /19 °0Overcast
+19 °Overcast

Charlestown, Wednesday, 19 August

Overcast. High 19°C, low 13°C.

Pressure1017 mb
Wind13 mph NW
Humidity53%
Visibility—
Dew point9°C
Thu, 20+13 ° /19 °0Overcast
+19 °Overcast

Charlestown, Thursday, 20 August

Overcast. High 19°C, low 13°C.

Pressure1015 mb
Wind14 mph N
Humidity52%
Visibility—
Dew point9°C
Fri, 21+12 ° /20 °0Overcast
+20 °Overcast

Charlestown, Friday, 21 August

Overcast. High 20°C, low 12°C.

Pressure1014 mb
Wind17 mph N
Humidity54%
Visibility—
Dew point9°C
Sat, 22+14 ° /19 °3.2Light rain
+19 °Light rain

Charlestown, Saturday, 22 August

Light rain. High 19°C, low 14°C.

Pressure1019 mb
Wind13 mph NE
Humidity62%
Visibility—
Dew point11°C
Sun, 23+15 ° /20 °0Overcast
+20 °Overcast

Charlestown, Sunday, 23 August

Overcast. High 20°C, low 15°C.

Pressure1021 mb
Wind11 mph SE
Humidity63%
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 Charlestown 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 Charlestown 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.