Best year time to visit Saint John

General weather information about Saint John

Average annual temperature is 22.1 °C

Absolute maximum temperature: 41.5 °C

Absolute minimum temperature: -0.3 °C

Number of sunny days: 186 days

Number of rainy days: 179 days

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* Weather data for Saint John United States is based on climate observations for 2026 year

Saint John air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)26.128.331.633.632.039.439.041.540.035.130.026.2
Average daytime temperature (°C)19.420.525.225.628.835.636.739.235.028.120.920.3
Average temperature (°C)14.114.219.219.823.828.930.732.329.222.616.014.0
Average night temperature (°C)10.19.814.815.419.723.825.726.624.318.312.39.5
Absolute minimum temperature (°C)0.2-0.34.811.113.619.223.324.020.76.44.01.9

Saint John monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.014.014.013.012.011.011.010.0
Daylight mean duration (h)10.511.112.012.913.614.013.813.212.311.510.710.3
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)6.57.17.38.39.011.912.311.910.68.56.47.6
Precipitation (mm)9929902151733823366953551
Sunny days161498619212413171821
Rainy days15142222251110717141210
Snow days000000000000

Saint John - weather forecast by months

Saint John weather in januarySaint John weather in februarySaint John weather in marchSaint John weather in aprilSaint John weather in maySaint John weather in juneSaint John weather in julySaint John weather in augustSaint John weather in septemberSaint John weather in octoberSaint John weather in novemberSaint John weather in december

Best time to visit Saint John:

The best time to visit Saint John during the most sunny months:

  • June — 11.9(h)
  • July — 12.3(h)
  • August — 11.9(h)

The largest precipitation sum in Saint John is at

  • January — 99(mm)
  • April — 215(mm)
  • May — 173(mm)

    • Weather forecast in the closest to Saint John admin centers

    Weather forecast in the closest towns to Saint John

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    Frequently asked questions

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