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Johnston Weather and Climate: A Comprehensive Guide

Temperatures see a moderate degree of fluctuation, transitioning from pleasant conditions to cold. It is also known for its large amounts of rainfall. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

The weather in Johnston changes moderately throughout the year, offering enough variation to appreciate each season. Typically, average maximum daytime temperatures range from a pleasant 19°C in August to a chilly 10°C in the coolest month, February.

Nights are cooler, with lows often dropping to around 5°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Johnston is known for its substantial rainfall, with annual precipitation reaching 1098 mm. Johnston offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between November (128 mm) and May (67 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

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

Forecast for Johnston

Sat   Jan 11
6°C | 3°C
E 6 m/s
5 mm
broken clouds and rain

broken clouds and rain

Sun   Jan 12
10°C | 3°C
S 6 m/s
0.5 mm
broken clouds and small chance of slight rain

broken clouds and small chance of slight rain

Mon   Jan 13
10°C | 7°C
S 7 m/s
overcast and no rain

overcast and no rain

Select a Month of Interest

Check the conditions for any month of the year.

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

Other facts from our historical weather data:
  • Which is the warmest month in Johnston?
    August has an average maximum temperature of 19°C and is the warmest month of the year.
  • Which is the coldest month in Johnston?
    The coldest month is February with an average maximum temperature of 10°C.
  • Which is the wettest month in Johnston?
    November tops the wettest month list with 128 mm of rainfall.
  • Which is the driest month in Johnston?
    May is the driest month with 67 mm of precipitation.

  • 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.