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Charlestown Climate by Month

The weather in Charlestown sees moderate temperature fluctuations over the course of a year. Temperatures can be pleasant at the high end to roughly cold at the low end. It is also known for its large amounts of rainfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

In Charlestown, seasonal changes bring about a moderate variation in temperatures. Typically, daytime temperatures range from a pleasant 20°C in July to a chilly 10°C in the coolest month, February. Nights are cooler, with temperatures generally dropping to 5°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Charlestown experiences significant rainfall throughout the year, averaging 1005 mm of precipitation annually. Precipitation levels in Charlestown remain relatively steady throughout the year. December has the most rain, with 103 mm over 21 days. In September, this drops slightly to 69 mm, making the city's climate fairly predictable.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Charlestown serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 7.4 hours of sunshine daily, and embrace the darker days in December, offering only 2.2 hours of daily sunlight.

Monthly hours of sunshine

Data from: Newquay, the United Kingdom (24 KM, 15 Miles).

Daily hours of sunshine

Data from: Newquay, the United Kingdom (24 KM, 15 Miles).

The best time of year to visit Charlestown in the United Kingdom

During the months of July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Charlestown?
    July has an average maximum temperature of 20°C and is the warmest month of the year.
  • Which is the coldest month in Charlestown?
    The coldest month is February with an average maximum temperature of 10°C.
  • Which is the wettest month in Charlestown?
    December tops the wettest month list with 103 mm of rainfall.
  • Which is the driest month in Charlestown?
    September is the driest month with 69 mm of precipitation.
  • Which is the sunniest month in Charlestown?
    May is the sunniest month with an average of 222 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Charlestown

    Sat   Dec 14
    10°C | 6°C
    NW 22 km/h
    0.5 mm
    broken clouds and  chance of slight rain

    broken clouds and chance of slight rain

    Sun   Dec 15
    12°C | 9°C
    NW 22 km/h
    0.8 mm
    overcast and small chance of slight rain

    overcast and small chance of slight rain

    Mon   Dec 16
    11°C | 8°C
    SW 14 km/h
    0.5 mm
    broken clouds and  chance of slight rain

    broken clouds and chance of slight rain