ClimateForecastNovemberDecember >>

Merton Climate by Month

Temperatures see a moderate degree of fluctuation, transitioning from pleasant conditions to cold. It also experiences much rainfall throughout the year. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

The climate in Merton experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures reach a pleasant 20°C in July. In February, the coolest month of the year, temperatures drop to a chilly 9°C. At night, expect cooler temperatures, averaging 4°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Merton is known for its substantial rainfall, with annual precipitation reaching 1017 mm. Despite minor fluctuations, Merton enjoys fairly consistent precipitation throughout the year. In December, you can expect around 104 mm of precipitation, while in March, Merton receives about 73 mm.

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

Sunshine over the year

Merton can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 6.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.8 hours of sunlight per day.

Monthly hours of sunshine

Data from: Exeter, the United Kingdom (43 KM, 27 Miles).

Daily hours of sunshine

Data from: Exeter, the United Kingdom (43 KM, 27 Miles).

The best time of year to visit Merton 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 Merton?
    July has an average maximum temperature of 20°C and is the warmest month of the year.
  • Which is the coldest month in Merton?
    The coldest month is February with an average maximum temperature of 9°C.
  • Which is the wettest month in Merton?
    December tops the wettest month list with 104 mm of rainfall.
  • Which is the driest month in Merton?
    March is the driest month with 73 mm of precipitation.
  • Which is the sunniest month in Merton?
    May is the sunniest month with an average of 197 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 Merton

    Thu   Nov 21
    4°C | -1°C
    E 29 km/h
    12 mm
    partly cloudy and sleet

    partly cloudy and sleet

    Fri   Nov 22
    7°C | 1°C
    NW 25 km/h
    2.5 mm
    broken clouds and  chance of rain

    broken clouds and chance of rain

    Sat   Nov 23
    15°C | 3°C
    SW 43 km/h
    18 mm
    overcast and heavy rain

    overcast and heavy rain