Weather in St. Croix in September

General weather information about St. Croix

Average annual temperature is 8.2 °C

Absolute maximum temperature: 31.0 °C

Absolute minimum temperature: -28.2 °C

Number of sunny days: 136 days

Number of rainy days: 196 days

Number of snow days: 33 days

Look at detailed online map of St. Croix

* Weather data for St. Croix Canada is based on climate observations for 2026 year

St. Croix air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)10.411.312.120.528.930.831.025.528.423.715.114.6
Average daytime temperature (°C)3.10.33.511.715.519.726.222.921.816.46.34.4
Average temperature (°C)-0.2-4.7-0.75.99.815.121.418.717.011.82.40.8
Average night temperature (°C)-3.6-9.3-4.11.65.111.417.915.313.68.6-0.8-2.2
Absolute minimum temperature (°C)-11.1-28.2-12.9-4.80.87.014.611.36.61.8-6.7-14.1

St. Croix monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.210.411.913.514.815.515.214.012.511.09.68.8
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)3.35.35.88.89.26.78.88.68.06.34.73.5
Precipitation (mm)2417097446018012217485165142147
Sunny days612101715941015131114
Rainy days17713131621272115181513
Snow days898000000044

St. Croix - weather forecast by months

St. Croix weather in januarySt. Croix weather in februarySt. Croix weather in marchSt. Croix weather in aprilSt. Croix weather in maySt. Croix weather in juneSt. Croix weather in julySt. Croix weather in augustSt. Croix weather in septemberSt. Croix weather in octoberSt. Croix weather in novemberSt. Croix weather in december

Best time to visit St. Croix:

The best time to visit St. Croix during the most sunny months:

  • April — 8.8(h)
  • May — 9.2(h)
  • July — 8.8(h)
  • August — 8.6(h)

Months with the longest average daylight duration in St. Croix:

  • June — 15.5(h)

The largest precipitation sum in St. Croix is at

  • January — 241(mm)
  • June — 180(mm)
  • August — 174(mm)
  • October — 165(mm)

    • Weather forecast in the closest to St. Croix admin centers

    Weather forecast in the closest towns to St. Croix

    Explore St. Croix

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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