Best year time to visit Portstewart

General weather information about Portstewart

Average annual temperature is 10.6 °C

Absolute maximum temperature: 26.3 °C

Absolute minimum temperature: -4.7 °C

Number of sunny days: 66 days

Number of rainy days: 299 days

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

Portstewart air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.613.215.116.818.725.821.322.126.320.313.813.0
Average daytime temperature (°C)7.99.89.412.014.820.217.217.717.914.09.89.0
Average temperature (°C)6.07.56.68.911.616.214.615.114.711.57.67.1
Average night temperature (°C)3.94.93.95.58.312.112.112.711.69.25.05.2
Absolute minimum temperature (°C)-4.7-1.5-3.20.93.67.99.88.86.33.20.7-2.5

Portstewart monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)8.010.012.015.016.017.017.015.013.011.09.07.0
Daylight mean duration (h)7.99.711.914.116.217.316.814.912.710.58.47.3
Daylight minimum duration (h)7.08.010.013.015.017.016.013.011.09.07.07.0
Sunshine mean duration (h)3.03.45.48.19.412.19.59.57.24.74.42.2
Precipitation (mm)9750131100709319812015913085188
Sunny days41057911104465
Rainy days271826232219303126272426
Snow days000000000000

Portstewart - weather forecast by months

Portstewart weather in januaryPortstewart weather in februaryPortstewart weather in marchPortstewart weather in aprilPortstewart weather in mayPortstewart weather in junePortstewart weather in julyPortstewart weather in augustPortstewart weather in septemberPortstewart weather in octoberPortstewart weather in novemberPortstewart weather in december

Best time to visit Portstewart:

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

  • May — 9.4(h)
  • June — 12.1(h)
  • July — 9.5(h)
  • August — 9.5(h)

Months with the longest average daylight duration in Portstewart:

  • May — 16.2(h)
  • June — 17.3(h)
  • July — 16.8(h)

The largest precipitation sum in Portstewart is at

  • July — 198(mm)
  • September — 159(mm)
  • December — 188(mm)

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    Frequently asked questions

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