Weather in Saint John in April

General weather information about Saint John

Average annual temperature is 21.7 °C

Absolute maximum temperature: 41.5 °C

Absolute minimum temperature: -0.5 °C

Number of sunny days: 155 days

Number of rainy days: 210 days

Look at detailed online map of Saint John

* 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)25.327.428.228.632.636.939.041.537.033.228.325.6
Average daytime temperature (°C)19.620.723.324.729.533.435.337.634.227.121.318.2
Average temperature (°C)14.615.418.319.824.228.029.831.728.221.615.912.9
Average night temperature (°C)10.611.714.415.919.523.625.326.923.217.212.08.8
Absolute minimum temperature (°C)0.72.0-0.58.913.719.923.022.519.88.74.11.2

Saint John monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.411.112.012.913.714.113.913.212.311.410.610.2
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)6.77.99.19.110.911.511.912.010.99.06.77.6
Precipitation (mm)160826410193576724412573174
Sunny days11810995122012221621
Rainy days20202121222519111891410
Snow days000000000000

Best time to visit Saint John:

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

  • July — 11.9(h)
  • August — 12.0(h)

The largest precipitation sum in Saint John is at

  • January — 160(mm)
  • April — 101(mm)
  • December — 174(mm)
  • 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.