Best year time to visit Helensburgh

General weather information about Helensburgh

Average annual temperature is 9.9 °C

Absolute maximum temperature: 27.2 °C

Absolute minimum temperature: -5.3 °C

Number of sunny days: 83 days

Number of rainy days: 280 days

Number of snow days: 2 days

Look at detailed online map of Helensburgh

* Weather data for Helensburgh United Kingdom is based on climate observations for 2026 year

Helensburgh air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.411.213.215.421.127.223.523.425.418.112.212.0
Average daytime temperature (°C)7.19.08.611.815.820.717.418.117.412.58.37.4
Average temperature (°C)4.96.65.38.011.816.214.715.114.310.25.95.6
Average night temperature (°C)2.53.71.84.27.710.912.012.111.07.73.43.8
Absolute minimum temperature (°C)-2.8-2.4-5.3-0.85.25.98.39.26.21.8-1.5-3.1

Helensburgh monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.013.015.017.017.017.016.013.011.09.07.0
Daylight mean duration (h)7.79.611.914.216.317.516.915.012.810.48.37.1
Daylight minimum duration (h)7.08.010.013.015.017.016.013.011.09.07.06.0
Sunshine mean duration (h)3.12.85.57.88.311.210.28.86.74.53.31.5
Precipitation (mm)1647814768609917991172198112247
Sunny days77712914208791
Rainy days242123182216293122242129
Snow days001000000001

Helensburgh - weather forecast by months

Helensburgh weather in januaryHelensburgh weather in februaryHelensburgh weather in marchHelensburgh weather in aprilHelensburgh weather in mayHelensburgh weather in juneHelensburgh weather in julyHelensburgh weather in augustHelensburgh weather in septemberHelensburgh weather in octoberHelensburgh weather in novemberHelensburgh weather in december

Best time to visit Helensburgh:

The best time to visit Helensburgh during the most sunny months:

  • April — 7.8(h)
  • May — 8.3(h)
  • June — 11.2(h)
  • July — 10.2(h)
  • August — 8.8(h)

Months with the longest average daylight duration in Helensburgh:

  • May — 16.3(h)
  • June — 17.5(h)
  • July — 16.9(h)

The largest precipitation sum in Helensburgh is at

  • July — 179(mm)
  • September — 172(mm)
  • October — 198(mm)
  • December — 247(mm)

    • Weather forecast in the closest to Helensburgh admin centers

    Weather forecast in the closest towns to Helensburgh

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    Frequently asked questions

    When is the best time to visit Helensburgh?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Helensburgh.
    What is the weather like in Helensburgh?
    See average temperature, rainfall and daylight hours for Helensburgh by month in the table above.
    How many sunny days does Helensburgh have?
    The monthly weather statistics above show sunshine and rainfall patterns for Helensburgh throughout the year.